Pub Date : 2022-08-01DOI: 10.29313/bcsme.v2i2.3528
Muhammad Fedryana, Elfida Moralista, N. F. Isniarno
Abstract. Conveyors made of steel with a mixture of carbon are prone to corrosion which can cause damage so that it will reduce the remaining service life of the conveyor structure. Therefore, corrosion control is carried out using the coating method to prevent corrosion from occurring, so as to get the service life of the conveyor structure according to the expected specifications.The research was conducted on a 90 meter long conveyor structure divided into 3 segments which were installed in 2014 and inspected in 2019, having a service life specification of 5 years and a design life of 15 years. This study aims to determine the type of corrosion that occurs, to control corrosion, to determine the corrosion rate and the remaining service life of the conveyor structure. The research method used is the measurement of thickness reduction on the conveyor structure using the Thickness Gauge TT 130, supported by supporting data in the form of environmental data for the period 2017 - 2021 in the form of rainfall data with an average of 252,7 mm/year, air temperature with an average of 28,050C and relative humidity with an average of 83,10%. The type of corrosion that occurs in the conveyor structure is uniform corrosion. The corrosion rate on the conveyor structure ranges from 0.362-0.370 mm/year into the good category based on the relative corrosion resistance of steel. The remaining service life ranges from 4,880 - 11,780 years with a service life of 5 years, thus there are 14 test points (56%) that reach the design life and 11 test points (44%) that do not reach the design life of 15 years. Abstrak. Conveyor yang berbahan dasar baja dengan campuran karbon rawan mengalami korosi yang dapat menyebabkan kerusakan sehingga akan mengurangi sisa umur pakai pada struktur conveyor. Maka dari itu, dilakukan pengendalian korosi menggunakan metode coating untuk mencegah agar tidak terjadi korosi, sehingga mendapatkan usia pakai struktur conveyor sesuai spesifikasi yang diharapkan.Penelitian dilakukan pada struktur conveyor sepanjang 90 meter terbagi menjadi 3 segmen yang dipasang pada tahun 2014 dan dilakukan inspeksi pada tahun 2019, mempunyai spesifikasi umur pakai selama 5 tahun dan umur desain selama 15 tahun. Penelitian bertujuan untuk mengetahui jenis korosi yang terjadi, melakukan pengendalian korosi, mengetahui laju korosi dan sisa umur pakai pada struktur conveyor. Metode penelitian yang digunakan yaitu pengukuran pengurangan ketebalan pada struktur conveyor menggunakan alat Thickness Gauge TT 130, dengan ditunjang menggunakan data pendukung berupa data lingkungan selama periode tahun 2017 - 2021 berupa data curah hujan dengan rata-rata 252,7 mm/tahun, temperatur udara dengan rata-rata 28,050C dan kelembapan relatif dengan rata-rata 83,10%. Jenis korosi yang terjadi pada struktur conveyor yaitu korosi merata. Laju korosi pada struktur conveyor berkisar antara 0,362-0,370 mm/tahun masuk kedalam kategori good berdasarkan ketahanan korosi relatif baja. S
摘要。钢与碳混合制成的输送机容易腐蚀，从而造成损坏，从而减少输送机结构的剩余使用寿命。因此，采用涂覆法进行腐蚀控制，防止腐蚀的发生，从而使输送机结构的使用寿命符合预期的规格。该研究是在2014年安装并于2019年检查的90米长分为3段的输送机结构上进行的，其使用寿命规范为5年，设计寿命为15年。本研究旨在确定发生腐蚀的类型，控制腐蚀，确定腐蚀速率和输送机结构的剩余使用寿命。使用的研究方法是使用厚度计TT 130测量输送机结构的厚度减少，并以2017 - 2021年期间的环境数据为支持数据，以平均降雨量为252,7 mm/年，平均气温为28,050℃，平均相对湿度为83,10%。输送机结构中发生的腐蚀类型为均匀腐蚀。根据钢的相对耐蚀性，对输送机结构的腐蚀速率为0.362-0.370 mm/年，为良好类别。剩余使用寿命为4880 ~ 11780年，使用寿命为5年，达到设计寿命的试验点有14个(56%)，未达到15年设计寿命的试验点有11个(44%)。Abstrak。输送带yang berbahan dasar baja dengan campuran karbon rawan mengalami korosi yang dapat menyebabkan kerusakan seingga akan mengurangi sisa umur pakai pada结构输送机。Maka dari, dilakukan pengendalian korosi menggunakan方法涂层untuk menegah agar tidak terjadi korosi, sehinga mendapatkan usia pakai结构输送机sesuai spesfikasi yang diharapkan。Penelitian dilakukan pada结构输送机sepanjang 90米terbagi menjadi 3段yang dipasang pada tahun 2014年ddilakukan检查pada tahun 2019年，mempunyai specifikasi umur pakai selama 5 tahun丹umur desain selama 15 tahun。Penelitian bertujuan untuk mengetahui jenis korosi yang terjadi, melakukan pengendalian korosi, mengetahui laju korosi dan sisa umur pakai pada结构输送机。Metode penelitian yang digunakan yitu企鹅kuran pengurangan ketebalan pada构造输送机menggunakan alat厚度计tt130, dunan ditunjang menggunakan数据pendukung berupa数据lingkungan selama周期tahun 2017 - 2021 berupa数据curah hujan dengan rata-rata 252,7 mm/tahun，温度udara dengan rata-rata 28,050C dan kelembapan相对于dengan rata-rata 83,10%。Jenis korosi yang terjadi pada结构输送机yitu korosi merata。拉朱korosi帕达结构输送机berkisar antara 0,362-0,370 mm/tahun masuk kedalam kategori良好berdasarkan ketahanan korosi相对baja。四川乌木pakai berkisar antara 4,880 - 11,780塔洪邓安乌木pakai selama 5塔洪，邓安demmikian terdapat 14测试点(56%)杨木pacai乌木设计丹11测试点(44%)杨木pacai乌木设计雅图15塔洪。
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Pub Date : 2022-08-01DOI: 10.29313/bcsme.v2i2.3973
T. Hidayatullah, Sriyanti, Zaenal
Abstract. This research is to determine the crushing process of andesite stone, to find out what obstacles occur before and after replacing the jaw plate and setting the tool, to get the efficiency value used for evaluating the performance of the crushing plant. The tools used are jaw crusher, secondary crusher, 2 vibrating screens and 12 conveyor belts. The results of this study are the results of the calculated resistance data obtained a value in the form of work efficiency of 75.73% with an effective time of 5.68 hours/day in condition A. In condition B, the effective time was 6.23 hours/day with an effectiveness of 83.06%. For the unit crushing plant, the effectiveness of the jaw crusher increases. Mechanical Availability increased by 3.65%, Physical Availability value increased by 2.41%, Effective of Utilization value increased by 15.75%, and Effectiveness of Utilization value increased by 13.04%. For cone crusher 1 also increased, the MA value was 13.10%, the PA value was 8.57%, the EU value was 23.79%, and the UA value was 14.02%. For cone crusher 2 there is a decrease in the MA value by 3.11% and the PA value by 3.26%, while the EU value increases by 6.62%, and the UA value increases by 10.21%. The resulting production is jaw crusher of 90,476 tons/hour in condition A while in condition B of 125.479 tons/hour, cone crusher 1 of 105.030 tons/hour, and cone crusher 2 of 100.575 tons/hour, with looses of 2,082 tons/day . The production target is 770 Tons/day, the average actual production in condition B is 384.89 tons/day and in condition B 524.52 tons/day, the production target in condition A and condition B is not achieved. Abstrak. Penelitian ini untuk mengetahui proses peremukan batu andesit, mengetahui apa saja hambatan yang terjadi sebelum dan sesudah penggantian jaw plate dan setting alat, untuk mendapatkan nilai efisiensi yang digunakan untuk evaluasi kinerja dari crushing plant. Alat yang digunakan yaitu jaw crusher, secondary crusher, vibrating screen 2 buah, dan belt conveyor sebanyak 12 buah. Hasil dari penelitian ini yaitu data hambatan yang dihitung didapatkan nilai berupa efisiensi kerja sebesar 75,73% dengan waktu efektif sebesar 5,68 jam/hari pada kondisi A. Pada kondisi B mendapat waktu efektif 6,23 jam/hari dengan efektivitas 83,06%. Untuk unit crushing plant, efektivitas jaw crusher naik. Pada Mechanical Availability naik sebesar 3,65%, nilai Phisycal Availability naik sebesar 2,41%, nilai Efective of Utilization naik sebesar 15,75%, dan nilai Efective of Utilization naik sebesar 13,04%. Untuk cone crusher 1 juga mengalami kenaikan, nilai MA sebesar 13,10%, nilai PA sebesar 8,57%, nilai EU sebesar 23,79%, dan nilai UA Sebesar 14,02%. Untuk cone crusher 2 terdapat penurunan nilai MA sebesar 3,11% dan nilai PA sebesar 3,26%, sedangkan nilai EU naik sebesar 6,62%, dan nilai UA naik sebesar 10,21%. Produksi yang dihasilkan yaitu jaw crusher sebesar 90,476 Ton/jam pada kondisi A sedangkan pada kondisi B sebesar 125,479 Ton/ja
摘要。本研究旨在确定安山石的破碎过程，找出更换颚板和设置工具前后发生的障碍，得到用于评价破碎装置性能的效率值。使用的工具有颚式破碎机、二次破碎机、2台振动筛和12条传送带。本研究结果为阻力数据计算结果，在工况a下，工作效率为75.73%，有效时间为5.68小时/天。工况B下，有效时间为6.23小时/天，有效时间为83.06%。对于单位破碎装置来说，颚式破碎机的效率提高了。机械利用率提高了3.65%，物理利用率提高了2.41%，有效利用率提高了15.75%，有效利用率提高了13.04%。圆锥破碎机1的MA值为13.10%，PA值为8.57%，EU值为23.79%，UA值为14.02%。圆锥破碎机2的MA值下降了3.11%，PA值下降了3.26%，EU值增加了6.62%，UA值增加了10.21%。在工况A和工况B分别生产了90476吨/小时和125.479吨/小时的颚式破碎机，1号圆锥破碎机105.030吨/小时和2号圆锥破碎机100.575吨/小时，松散量为2082吨/天。生产目标为770吨/天，B条件下的平均实际产量为384.89吨/天，B条件下的平均实际产量为524.52吨/天，A条件和B条件下的生产目标均未达到。Abstrak。Penelitian ini untuk mengetahui加工peremukan batu和esit, mengetahui apa saja hambatan yang terjadi sebelum dan sesudah penggtian颚板dan setting alat, untuk mendapatkan nilai efisiensi yang digunakan untuk评价kinerja dari破碎厂。阿拉阳地谷那坎颚式破碎机、亚图颚式破碎机、振动筛2台破碎机、丹式皮带输送机12台破碎机。Hasil dari penelitian ini yitu data hambatan yang dihitung didapatkan nilai berupa efisiensi kerja sebesar 75,73 jam/hari pada kondisi A. pada kondisi B . mendapat waktu efektif 6,23 jam/hari dengan efektivitas 83,06%。Untuk单元破碎厂，ekktivitas颚式破碎机。帕达机械可用性为3.65%，尼罗物理可用性为2.41%，尼罗利用效率为15.75%，尼罗利用效率为13.04%。Untuk圆锥破碎机1 juga mengalami kenaikan, nilai MA sebesar 13,10%， nilai PA sebesar 8,57%， nilai EU sebesar 23,79%， dan nilai UA sebesar 14,02%。Untuk圆锥破碎机2,terdapat penurunan nilai MA sebesar 3,11%， dan nilai PA sebesar 3,26%， sedangkan nilai EU naik sebesar 6,62%， dan nilai UA naik sebesar 10,21%。产品为杨迪哈斯坎雅图鄂式破碎机sebesar 90,476吨/果酱帕达康迪斯A塞当坎帕达康迪斯B塞besar 125,479吨/果酱，圆锥破碎机1号塞besar 105,030吨/果酱，圆锥破碎机2号塞besar 100,575吨/果酱，登干松塞besar 2,082吨/果酱。目标产量为770t /hari，实际产量为890t /hari，目标产量为890t /hari，目标产量为889t /hari，目标产量为889t /hari，目标产量为889t /hari，目标产量为889t /hari，目标产量为889t /hari，目标产量为889t /hari，目标产量为889t /hari，目标产量为889t /hari。
{"title":"Evaluasi Kinerja Crushing Plant Batu Andesit PT Widaka Indonesia di Kelurahan Jelekong, Kecamatan Baleendah, Kabupaten Bandung, Provinsi Jawa Barat","authors":"T. Hidayatullah, Sriyanti, Zaenal","doi":"10.29313/bcsme.v2i2.3973","DOIUrl":"https://doi.org/10.29313/bcsme.v2i2.3973","url":null,"abstract":"Abstract. This research is to determine the crushing process of andesite stone, to find out what obstacles occur before and after replacing the jaw plate and setting the tool, to get the efficiency value used for evaluating the performance of the crushing plant. The tools used are jaw crusher, secondary crusher, 2 vibrating screens and 12 conveyor belts. The results of this study are the results of the calculated resistance data obtained a value in the form of work efficiency of 75.73% with an effective time of 5.68 hours/day in condition A. In condition B, the effective time was 6.23 hours/day with an effectiveness of 83.06%. For the unit crushing plant, the effectiveness of the jaw crusher increases. Mechanical Availability increased by 3.65%, Physical Availability value increased by 2.41%, Effective of Utilization value increased by 15.75%, and Effectiveness of Utilization value increased by 13.04%. For cone crusher 1 also increased, the MA value was 13.10%, the PA value was 8.57%, the EU value was 23.79%, and the UA value was 14.02%. For cone crusher 2 there is a decrease in the MA value by 3.11% and the PA value by 3.26%, while the EU value increases by 6.62%, and the UA value increases by 10.21%. The resulting production is jaw crusher of 90,476 tons/hour in condition A while in condition B of 125.479 tons/hour, cone crusher 1 of 105.030 tons/hour, and cone crusher 2 of 100.575 tons/hour, with looses of 2,082 tons/day . The production target is 770 Tons/day, the average actual production in condition B is 384.89 tons/day and in condition B 524.52 tons/day, the production target in condition A and condition B is not achieved. \u0000Abstrak. Penelitian ini untuk mengetahui proses peremukan batu andesit, mengetahui apa saja hambatan yang terjadi sebelum dan sesudah penggantian jaw plate dan setting alat, untuk mendapatkan nilai efisiensi yang digunakan untuk evaluasi kinerja dari crushing plant. Alat yang digunakan yaitu jaw crusher, secondary crusher, vibrating screen 2 buah, dan belt conveyor sebanyak 12 buah. Hasil dari penelitian ini yaitu data hambatan yang dihitung didapatkan nilai berupa efisiensi kerja sebesar 75,73% dengan waktu efektif sebesar 5,68 jam/hari pada kondisi A. Pada kondisi B mendapat waktu efektif 6,23 jam/hari dengan efektivitas 83,06%. Untuk unit crushing plant, efektivitas jaw crusher naik. Pada Mechanical Availability naik sebesar 3,65%, nilai Phisycal Availability naik sebesar 2,41%, nilai Efective of Utilization naik sebesar 15,75%, dan nilai Efective of Utilization naik sebesar 13,04%. Untuk cone crusher 1 juga mengalami kenaikan, nilai MA sebesar 13,10%, nilai PA sebesar 8,57%, nilai EU sebesar 23,79%, dan nilai UA Sebesar 14,02%. Untuk cone crusher 2 terdapat penurunan nilai MA sebesar 3,11% dan nilai PA sebesar 3,26%, sedangkan nilai EU naik sebesar 6,62%, dan nilai UA naik sebesar 10,21%. Produksi yang dihasilkan yaitu jaw crusher sebesar 90,476 Ton/jam pada kondisi A sedangkan pada kondisi B sebesar 125,479 Ton/ja","PeriodicalId":187584,"journal":{"name":"Bandung Conference Series: Mining Engineering","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121374372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-01DOI: 10.29313/bcsme.v2i2.4246
Fajar Arifianto, Elfida Moralista, Zaenal
Abstract. Conveyor is one of the tools used to move excavated materials such as coal. The conveyor structure used is made of carbon steel. Conveyor structures can experience a decrease in quality due to corrosion. This study aims to determine the type of corrosion, corrosion control, and remaining service life of the conveyor structure. In this study, observations of environmental conditions include an average rainfall of 217.53 mm/year, an average air temperature of 27.22 ⁰C, and average relative humidity of 83.48%. The actual thickness measurement of the conveyor structure is carried out using the Ultrasonic Thickness GaugeTT 130 at 25 test points. The methodology used is by measuring the thickness reduction of the conveyor structure due to corrosion to determine the corrosion rate and remaining service life of the conveyor structure. The type of corrosion that occurs in the conveyor structure is uniform corrosion. The corrosion control method applied is the coating method with a 3-layer system including the primary coating using Seaguard 5000, intermediate coating using Sherglass FF, and top coating using Aliphatic Acrylic Modified Polyurethane. The corrosion rate on the conveyor structure is 0.1733 – 0.3133 mm/year. Based on the table, the relative corrosion resistance of steel is in a good category. Remaining Service Life of the conveyor structure is 7.56 – 11.86 years. There are 8 or 32% of test points that are estimated to not reach the design life of the conveyor structure (15 years). Abstrak. Conveyor merupakan salah satu alat yang digunakan untuk memindahkan material bahan galian seperti batubara. Struktur conveyor yang digunakan berbahan dasar baja karbon. Struktur conveyor dapat mengalami penurunan kualitas yang diakibatkan oleh korosi. Penelitian ini bertujuan untuk mengetahui jenis korosi, pengendalian korosi dan remaining service life struktur conveyor. Pada penelitian ini, pengamatan kondisi lingkungan meliputi curah hujan rata-rata 217,53 mm/tahun, temperatur udara rata-rata 27,22 ⁰C dan kelembapan relatif rata-rata 83,48 %. Pengukuran tebal aktual struktur conveyor dilakukan dengan menggunakan alat Ultrasonic Thickness GaugeTT 130 pada 25 test point. Metodologi yang digunakan yaitu dengan pengukuran pengurangan ketebalan struktur conveyor akibat korosi untuk menentukan corrosion rate dan remaining service life struktur conveyor. Jenis korosi yang terjadi pada struktur conveyor adalah korosi merata. Metode pengendalian korosi yang diaplikasikan yaitu metode coating dengan sistem 3 layer meliputi primer coating menggunakan Seaguard 5000, intermediate coating menggunakan Sherglass FF dan top coating menggunakan Aliphatic Acrylic Modified Polyurethane. Corrosion rate pada struktur conveyor yaitu 0,1733 – 0,3133 mm/tahun. Berdasarkan tabel ketahanan korosi relatif baja termasuk ke dalam kategori good. Remaining Service Life struktur conveyor yaitu 7,56 – 11,86 tahun. Terdapat 8 atau 32% test point yang diperkirakan tidak dapat men
摘要。传送带是用来运输煤炭等挖掘物料的工具之一。所采用的输送机结构为碳钢。由于腐蚀，输送结构的质量会下降。本研究旨在确定腐蚀类型，腐蚀控制，以及输送机结构的剩余使用寿命。在本研究中，环境条件的观测包括平均降雨量217.53 mm/年，平均气温27.22⁰C，平均相对湿度83.48%。采用超声波测厚仪130在25个测点对输送机结构进行实际厚度测量。所采用的方法是通过测量由于腐蚀导致的输送机结构的厚度减少来确定输送机结构的腐蚀速率和剩余使用寿命。输送机结构中发生的腐蚀类型为均匀腐蚀。防腐方法采用三层体系的涂覆方法，其中基层涂覆采用Seaguard 5000，中间涂覆采用Sherglass FF，顶层涂覆采用脂族丙烯酸改性聚氨酯。对输送机结构的腐蚀速率为0.1733 - 0.3133 mm/年。从表中可以看出，钢材的相对耐腐蚀性属于良好的一类。输送机结构剩余使用寿命为7.56 ~ 11.86年。估计有8%或32%的测试点未达到输送机结构的设计寿命(15年)。Abstrak。输送机merupakan salah satu alat yang digunakan untuk memindahkan物料bahan galian seperti batubara。输送机阳迪古纳坎伯尔巴哈达萨巴哈碳素。结构输送机的结构与结构是一致的。peneltian ini bertujuan untuk mengetahui jenis korosi, pengendalian korosi dan剩余使用寿命结构输送机。Pada penelitian ini, pengamatan kondisi lingkungan meliputi curah hujan rata-rata 217,53 mm/tahun，温度udara rata-rata 27,22℃dan kelembapan相对rata 83,48 %。企鹅实际结构输送机迪拉库坎登安蒙古纳坎alat超声波厚度计130帕25测试点。方法学杨迪古纳肯，yitu dengan，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅。Jenis korosi yang terjadi pada结构输送机adalah korosi merata。方法pengendalian korosi yang diaplikasikan yitu方法coating dengan体系3层meliputi底漆蒙古那坎Seaguard 5000中间漆蒙古那坎Sherglass FF丹面漆蒙古那坎脂肪族丙烯酸改性聚氨酯。腐蚀速率板式结构输送机yytu 0.1733 - 0.3133 mm/tahun。Berdasarkan tabel ketahanan korosi亲戚baja termasuk ke dalam kategori好。结构输送机的剩余使用寿命为7,56 - 11,86塔hun。Terdapat 8 atau 32%试验点yang diperkirakan tidak dapat mencapai umur设计结构输送机(15 tahun)。
{"title":"Remaining Service Life Struktur Conveyor A pada Tambang Tambang Batubara PT XYZ di Kabupaten Banjar, Provinsi Kalimantan Selatan","authors":"Fajar Arifianto, Elfida Moralista, Zaenal","doi":"10.29313/bcsme.v2i2.4246","DOIUrl":"https://doi.org/10.29313/bcsme.v2i2.4246","url":null,"abstract":"Abstract. Conveyor is one of the tools used to move excavated materials such as coal. The conveyor structure used is made of carbon steel. Conveyor structures can experience a decrease in quality due to corrosion. This study aims to determine the type of corrosion, corrosion control, and remaining service life of the conveyor structure. In this study, observations of environmental conditions include an average rainfall of 217.53 mm/year, an average air temperature of 27.22 ⁰C, and average relative humidity of 83.48%. The actual thickness measurement of the conveyor structure is carried out using the Ultrasonic Thickness GaugeTT 130 at 25 test points. The methodology used is by measuring the thickness reduction of the conveyor structure due to corrosion to determine the corrosion rate and remaining service life of the conveyor structure. The type of corrosion that occurs in the conveyor structure is uniform corrosion. The corrosion control method applied is the coating method with a 3-layer system including the primary coating using Seaguard 5000, intermediate coating using Sherglass FF, and top coating using Aliphatic Acrylic Modified Polyurethane. The corrosion rate on the conveyor structure is 0.1733 – 0.3133 mm/year. Based on the table, the relative corrosion resistance of steel is in a good category. Remaining Service Life of the conveyor structure is 7.56 – 11.86 years. There are 8 or 32% of test points that are estimated to not reach the design life of the conveyor structure (15 years). \u0000Abstrak. Conveyor merupakan salah satu alat yang digunakan untuk memindahkan material bahan galian seperti batubara. Struktur conveyor yang digunakan berbahan dasar baja karbon. Struktur conveyor dapat mengalami penurunan kualitas yang diakibatkan oleh korosi. Penelitian ini bertujuan untuk mengetahui jenis korosi, pengendalian korosi dan remaining service life struktur conveyor. Pada penelitian ini, pengamatan kondisi lingkungan meliputi curah hujan rata-rata 217,53 mm/tahun, temperatur udara rata-rata 27,22 ⁰C dan kelembapan relatif rata-rata 83,48 %. Pengukuran tebal aktual struktur conveyor dilakukan dengan menggunakan alat Ultrasonic Thickness GaugeTT 130 pada 25 test point. Metodologi yang digunakan yaitu dengan pengukuran pengurangan ketebalan struktur conveyor akibat korosi untuk menentukan corrosion rate dan remaining service life struktur conveyor. Jenis korosi yang terjadi pada struktur conveyor adalah korosi merata. Metode pengendalian korosi yang diaplikasikan yaitu metode coating dengan sistem 3 layer meliputi primer coating menggunakan Seaguard 5000, intermediate coating menggunakan Sherglass FF dan top coating menggunakan Aliphatic Acrylic Modified Polyurethane. Corrosion rate pada struktur conveyor yaitu 0,1733 – 0,3133 mm/tahun. Berdasarkan tabel ketahanan korosi relatif baja termasuk ke dalam kategori good. Remaining Service Life struktur conveyor yaitu 7,56 – 11,86 tahun. Terdapat 8 atau 32% test point yang diperkirakan tidak dapat men","PeriodicalId":187584,"journal":{"name":"Bandung Conference Series: Mining Engineering","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127097552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-01DOI: 10.29313/bcsme.v2i2.4102
Nirmaya Wulandari, Iswandaru, Elfida Moralista
Abstract. PT Mitra Multi Sejahtera is a company engaged in the mining sector with andesite commodities. The slope of the company has a steep slope and a large number of discontinuous fields that have the potential to make the slope unstable. This research was conducted to determine the potential types of landslides, actual and optimal slopes, safety factors and probability of failure, slope stability, and slope geometry recommendation. This research uses a methodology in the form of Q-Slope analysis, limit equilibrium method, and probabilistic method on 2 slope segments. Q-Slope analysis observes the physical properties of the discontinuous plane to obtain the optimal slope. Limit equilibrium and probabilistic methods were studied using inputs of physical and mechanical properties in the form of natural density, cohesion, and friction angle which were analyzed through Monte Carlo simulation to obtain the value of the safety factor and probability of failure. The slope of segment 1 has an actual slope of 80o and an optimal slope of 83o with a safety factor of 7.233. The slope of segment 2 has an actual slope of 76o and an optimal slope of 88o with a safety factor of 7.095. The probability of failure generated from the two slope segments is 0.7% in dynamic conditions. The results of data analysis show that the slopes are in a safe and stable condition. The recommended slope geometry recommendation is to make an overall slope with a height of 40 meters and an overall slope of 57o by dividing it into 4 benches. Abstrak. PT Mitra Multi Sejahtera merupakan suatu perusahaan yang bergerak pada bidang pertambangan dengan komoditas andesit. Lereng pada perusahaan tersebut memiliki kemiringan yang curam dan bidang diskontinu dalam jumlah yang cukup banyak sehingga berpotensi membuat lereng menjadi tidak stabil. Penelitian ini dilakukan untuk mengetahui potensi jenis longsoran, kemiringan lereng aktual dan optimal, faktor keamanan dan probabilitas longsor, kestabilan lereng, serta rekomendasi geometri lereng.Penelitian ini menggunakan metodologi berupa analisis Q-Slope, metode kesetimbangan batas, dan metode probabilistik pada 2 segmen lereng. Analisis Q-Slope mengamati sifat fisik bidang diskontinu hingga mendapatkan kemiringan lereng optimal. Metode kesetimbangan batas dan probabilistik dikaji menggunakan input sifat fisik dan mekanik berupa bobot isi natural, kohesi, dan sudut gesek dalam yang dianalisis melalui simulasi monte carlo untuk mendapatkan nilai faktor keamanan dan probabilitas longsor. Lereng segmen 1 memiliki kemiringan aktual 80o dan kemiringan optimal 83o dengan nilai faktor keamanan sebesar 7,233. Lereng segmen 2 memiliki kemiringan aktual 76o dan kemiringan optimal 88o dengan nilai faktor keamanan sebesar 7,095. Probabilitas longsor yang dihasilkan dari kedua segmen lereng sebesar 0,7% dalam keadaan dinamis. Hasil analisis data menunjukkan bahwa lereng dalam kondisi yang aman dan stabil. Rekomendasi geometri lereng yang disarankan yakni
摘要PT Mitra Multi Sejahtera是一家从事安山岩商品采矿部门的公司。该公司的边坡坡度较大，并且有大量的不连续场，这些不连续场有可能使边坡不稳定。本研究旨在确定潜在滑坡类型、实际和最优边坡、安全系数和破坏概率、边坡稳定性以及边坡几何形状建议。本研究采用Q-Slope分析法、极限平衡法和概率法对2个斜率段进行分析。Q-Slope分析通过观察不连续平面的物理性质来获得最优斜率。以自然密度、黏聚力、摩擦角等物理力学性能为输入，通过蒙特卡罗模拟分析，研究极限平衡和概率方法，得到安全系数值和失效概率。段1的实际坡度为80o，最优坡度为830，安全系数为7.233。段2的实际斜率为760，最优斜率为880，安全系数为7.095。在动力条件下，两个坡段产生破坏的概率为0.7%。数据分析结果表明，边坡处于安全稳定状态。建议的坡度几何建议是将整体坡度划分为4个台地，高度为40米，总坡度为570度。Abstrak。PT Mitra Multi Sejahtera merupakan suatu perusahaan yang bergerak pada bidang pertambangan dengan komoditas andesit。我的朋友，我的朋友，我的朋友，我的朋友，我的朋友，我的朋友，我的朋友。Penelitian ini dilakukan untuk mengetahui potential jenis longsoran, kemiringan leeng实际dan最优，factor keamanan dan概率较长，kestabilan leeng, serta rekomendasi geometric leeng。Penelitian ini mongunakan method berupa analysis Q-Slope, method kesetimbangan batas, method probabilisk paada 2 segment leeng。Q-Slope模型的分析，可选的最优解，可选的最优解。Metode kesetimbangan巴塔丹probabilistik dikaji menggunakan输入sifat fisik丹mekanik berupa bobot isi自然,kohesi,丹sudut gesek dalam杨dianalisis melalui simulasi蒙特卡罗为她mendapatkan汝faktor keamanan丹probabilitas longsor。Lereng分段1的记忆值为80，实际的记忆值为80，最优的记忆值为830，而最佳的记忆值为7233。Lereng分段2的记忆值为760k，最优记忆值为880k，最优记忆值为7095 k。概率较长，因为杨德昌和他的朋友们在一起的时候，有7%的人在一起。Hasil分析数据:menunjukkan bahwa leeng dalam kondisi yang aman danstabil。Rekomendasi geometri lereng yang disarankan yakni成员lereng keseluruhan登干tinggi 40米丹总坡度57o登干membaginya ke dalam 4 jenjang。
{"title":"Evaluasi dan Rekomendasi Geoteknik pada Lereng Produksi Penambangan Andesit PT Mitra Multi Sejahtera di Kecamatan Cikalong Kulon, Kabupaten Cianjur, Provinsi Jawa Barat","authors":"Nirmaya Wulandari, Iswandaru, Elfida Moralista","doi":"10.29313/bcsme.v2i2.4102","DOIUrl":"https://doi.org/10.29313/bcsme.v2i2.4102","url":null,"abstract":"Abstract. PT Mitra Multi Sejahtera is a company engaged in the mining sector with andesite commodities. The slope of the company has a steep slope and a large number of discontinuous fields that have the potential to make the slope unstable. This research was conducted to determine the potential types of landslides, actual and optimal slopes, safety factors and probability of failure, slope stability, and slope geometry recommendation. This research uses a methodology in the form of Q-Slope analysis, limit equilibrium method, and probabilistic method on 2 slope segments. Q-Slope analysis observes the physical properties of the discontinuous plane to obtain the optimal slope. Limit equilibrium and probabilistic methods were studied using inputs of physical and mechanical properties in the form of natural density, cohesion, and friction angle which were analyzed through Monte Carlo simulation to obtain the value of the safety factor and probability of failure. The slope of segment 1 has an actual slope of 80o and an optimal slope of 83o with a safety factor of 7.233. The slope of segment 2 has an actual slope of 76o and an optimal slope of 88o with a safety factor of 7.095. The probability of failure generated from the two slope segments is 0.7% in dynamic conditions. The results of data analysis show that the slopes are in a safe and stable condition. The recommended slope geometry recommendation is to make an overall slope with a height of 40 meters and an overall slope of 57o by dividing it into 4 benches. \u0000Abstrak. PT Mitra Multi Sejahtera merupakan suatu perusahaan yang bergerak pada bidang pertambangan dengan komoditas andesit. Lereng pada perusahaan tersebut memiliki kemiringan yang curam dan bidang diskontinu dalam jumlah yang cukup banyak sehingga berpotensi membuat lereng menjadi tidak stabil. Penelitian ini dilakukan untuk mengetahui potensi jenis longsoran, kemiringan lereng aktual dan optimal, faktor keamanan dan probabilitas longsor, kestabilan lereng, serta rekomendasi geometri lereng.Penelitian ini menggunakan metodologi berupa analisis Q-Slope, metode kesetimbangan batas, dan metode probabilistik pada 2 segmen lereng. Analisis Q-Slope mengamati sifat fisik bidang diskontinu hingga mendapatkan kemiringan lereng optimal. Metode kesetimbangan batas dan probabilistik dikaji menggunakan input sifat fisik dan mekanik berupa bobot isi natural, kohesi, dan sudut gesek dalam yang dianalisis melalui simulasi monte carlo untuk mendapatkan nilai faktor keamanan dan probabilitas longsor. Lereng segmen 1 memiliki kemiringan aktual 80o dan kemiringan optimal 83o dengan nilai faktor keamanan sebesar 7,233. Lereng segmen 2 memiliki kemiringan aktual 76o dan kemiringan optimal 88o dengan nilai faktor keamanan sebesar 7,095. Probabilitas longsor yang dihasilkan dari kedua segmen lereng sebesar 0,7% dalam keadaan dinamis. Hasil analisis data menunjukkan bahwa lereng dalam kondisi yang aman dan stabil. Rekomendasi geometri lereng yang disarankan yakni","PeriodicalId":187584,"journal":{"name":"Bandung Conference Series: Mining Engineering","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131459890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-01DOI: 10.29313/bcsme.v2i2.4388
Rafid Rabbani, Sriyanti, Elfida Moralista
Abstract. In the Kubang Kicau mining area at PT ANTAM Tbk UBPE Pongkor, Bogor District, West Java Province, there is a change in the quantity of air in the ventilation system. The change is due to a decrease in air flow from the blower fan with flexible duct. Air leakage in the area around the main fan causes air to return. Thus it is necessary to research changes in air quantity. The purpose of this study is to determine the decrease in air flow in the new condition blower fan 37 kW with a flexible duct distance of 100 m and a reconditioned blower fan 15 kW with a flexible duct distance of 30 m, as well as determine air leakage in the area around the main fan. Data processing is carried out to determine the tunnel area, air leakage area, flexible duct area, air flow reduction, and air leakage. The data required are tunnel dimensions, air leakage area dimensions, flexible duct distance, air velocity, and air flow from the blower fan specification (GIA SwedVent). The decrease in air discharge determined by the company is a maximum of 15%. The decrease in air flow in the blower fan 37 kW is 22.96% and the decrease in air flow in the blower fan 15 kW is 37.19%. Thus the two blower fans do not meet the standards set by the company. The amount of air leakage around the main fan is 1.391-10.601% so it still meets the standards set by the company. Abstrak. Pada area penambangan Kubang Kicau di PT ANTAM Tbk UBPE Pongkor, Kabupaten Bogor, Provinsi Jawa Barat, terjadi perubahan kuantitas udara pada sistem ventilasi. Perubahan tersebut karena penurunan debit udara dari blower fan dengan flexible duct. Leakage udara pada area sekitar main fan mengakibatkan udara balik. Dengan demikian perlu dilakukan penelitian perubahan kuantitas udaranya. Tujuan penelitian ini yaitu mengetahui penurunan debit udara pada blower fan 37 kW kondisi baru berjarak flexible duct 100 m dan blower fan 15 kW rekondisi berjarak flexible duct 30 m, serta mengetahui leakage udara pada area sekitar main fan. Pengolahan data dilakukan untuk menentukan luas tunnel, luas area leakage udara, luas flexible duct, penurunan debit udara, dan leakage udara. Data yang diperlukan adalah dimensi tunnel, dimensi area leakage udara, jarak flexible duct, kecepatan udara, serta debit udara dari spesifikasi blower fan (GIA SwedVent). Penurunan debit udara yang ditentukan oleh perusahaan yaitu maksimal 15%. Penurunan debit udara pada blower fan 37 kW yaitu 22,96% dan penurunan debit udara pada blower fan 15 kW yaitu 37,19%. Dengan demikian kedua blower fan tersebut tidak memenuhi standar yang ditentukan oleh perusahaan. Banyaknya leakage udara di sekitar main fan yaitu 1,391-10,601% sehingga masih memenuhi standar yang ditentukan oleh perusahaan.
摘要在西爪哇省茂物区PT ANTAM Tbk UBPE Pongkor的Kubang Kicau矿区，通风系统中的空气量发生了变化。这种变化是由于带有柔性风道的鼓风机的气流减少。主风机周围区域漏风导致空气回流。因此，有必要对空气量的变化进行研究。本研究的目的是确定新工况37kw、柔性风道距离100m的风机和修复后15kw、柔性风道距离30m的风机的风量减少量，并确定主风机周围区域的漏风量。进行数据处理，确定隧道面积、漏风面积、柔性风管面积、减风量、漏风量。所需数据为隧道尺寸、漏风面积尺寸、柔性风道距离、风速和鼓风机规格(GIA SwedVent)的风量。公司确定的空气排放减少量最多为15%。37 kW风机的风量减少22.96%，15 kW风机的风量减少37.19%。因此两台风机不符合公司规定的标准。主风机周围漏风量为1.391-10.601%，仍符合公司规定标准。Abstrak。帕达地区penambangan Kubang Kicau di PT ANTAM Tbk UBPE Pongkor, Kabupaten茂物，省爪哇巴拉特，terjadi perubahan kuantitas udara帕达系统通风。佩鲁巴汉特拉斯卡纳特拉努纳特拉达里鼓风机登根柔性风管。泄漏的乌达拉帕达区主要是乌达拉巴达。邓干demikian perlu dilakukan penelitian perubahan kuantitas udaranya。Tujuan penelitian ini yitu mengetahui penurunan debit udara pada鼓风机风机37kw kondisi baru berjarak柔性风道100m丹鼓风机风机15kw rekondisi berjarak柔性风道30m, serta mengetahui泄漏udara pada区域sekitar主风机。彭戈拉罕资料:双拉坎隧道、双拉坎隧道、双拉坎隧道、双拉坎隧道、双拉坎隧道、双拉坎隧道、双拉坎隧道、双拉坎隧道、单拉坎隧道。数据阳diperlukan adalah尺寸隧道，尺寸面积泄漏udara, jarak柔性风管，keepatan udara, serta debit udara达规格鼓风机(GIA SwedVent)。Penurunan借记udara yang ditentukan oleh perusahaan yyitu maksimal 15%。Penurunan借借udara帕达风机37 kW雅图22,96%;Penurunan借借udara帕达风机15 kW雅图37,19%。登安德米克杜安鼓风机是一种标准的鼓风机。banyakya泄漏udara di sekitar主要是范雅图1,391-10,601% sehinga masih memuhi标准yang ditentukan oleh perusaan。
{"title":"Kajian Perubahan Kuantitas Udara pada Sistem Ventilasi Area Penambangan Kubang Kicau di PT Antam Tbk UBPE Pongkor, Kabupaten Bogor, Provinsi Jawa Barat","authors":"Rafid Rabbani, Sriyanti, Elfida Moralista","doi":"10.29313/bcsme.v2i2.4388","DOIUrl":"https://doi.org/10.29313/bcsme.v2i2.4388","url":null,"abstract":"Abstract. In the Kubang Kicau mining area at PT ANTAM Tbk UBPE Pongkor, Bogor District, West Java Province, there is a change in the quantity of air in the ventilation system. The change is due to a decrease in air flow from the blower fan with flexible duct. Air leakage in the area around the main fan causes air to return. Thus it is necessary to research changes in air quantity. The purpose of this study is to determine the decrease in air flow in the new condition blower fan 37 kW with a flexible duct distance of 100 m and a reconditioned blower fan 15 kW with a flexible duct distance of 30 m, as well as determine air leakage in the area around the main fan. Data processing is carried out to determine the tunnel area, air leakage area, flexible duct area, air flow reduction, and air leakage. The data required are tunnel dimensions, air leakage area dimensions, flexible duct distance, air velocity, and air flow from the blower fan specification (GIA SwedVent). The decrease in air discharge determined by the company is a maximum of 15%. The decrease in air flow in the blower fan 37 kW is 22.96% and the decrease in air flow in the blower fan 15 kW is 37.19%. Thus the two blower fans do not meet the standards set by the company. The amount of air leakage around the main fan is 1.391-10.601% so it still meets the standards set by the company. \u0000Abstrak. Pada area penambangan Kubang Kicau di PT ANTAM Tbk UBPE Pongkor, Kabupaten Bogor, Provinsi Jawa Barat, terjadi perubahan kuantitas udara pada sistem ventilasi. Perubahan tersebut karena penurunan debit udara dari blower fan dengan flexible duct. Leakage udara pada area sekitar main fan mengakibatkan udara balik. Dengan demikian perlu dilakukan penelitian perubahan kuantitas udaranya. Tujuan penelitian ini yaitu mengetahui penurunan debit udara pada blower fan 37 kW kondisi baru berjarak flexible duct 100 m dan blower fan 15 kW rekondisi berjarak flexible duct 30 m, serta mengetahui leakage udara pada area sekitar main fan. Pengolahan data dilakukan untuk menentukan luas tunnel, luas area leakage udara, luas flexible duct, penurunan debit udara, dan leakage udara. Data yang diperlukan adalah dimensi tunnel, dimensi area leakage udara, jarak flexible duct, kecepatan udara, serta debit udara dari spesifikasi blower fan (GIA SwedVent). Penurunan debit udara yang ditentukan oleh perusahaan yaitu maksimal 15%. Penurunan debit udara pada blower fan 37 kW yaitu 22,96% dan penurunan debit udara pada blower fan 15 kW yaitu 37,19%. Dengan demikian kedua blower fan tersebut tidak memenuhi standar yang ditentukan oleh perusahaan. Banyaknya leakage udara di sekitar main fan yaitu 1,391-10,601% sehingga masih memenuhi standar yang ditentukan oleh perusahaan.","PeriodicalId":187584,"journal":{"name":"Bandung Conference Series: Mining Engineering","volume":"39 1-2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133021838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-01DOI: 10.29313/bcsme.v2i2.4082
Romario Rahmad Radani, Yuliadi, Iswandaru
Abstract. In this geotechnical analysis study the research uses the Limit Equilibrium Method (LEM) method to analyze single slopes and overall slopes. The input of material properties used comes from classification rock mass rating and the results of geotechnical mapping in the field which can also be applied for kinematic analysis on slopes that can represent other slopes to get the type of relaxation that can occur in the research area. Geotechnical analysis to be able to redesign slope geometry at PT Banjarsari Pribumi is based on the results of physical property tests, mechanical properties of rocks obtained from laboratory testing, and conducting geotechnical data in the field to be used as evaluation materials. The results of the overall slope stability analysis resulted in a cross-section of A-A' to a cross-section of G-G' and a single slope for waste material. Using new material properties and slope design it can be said that the slope is in a stable state or FK > 1.1 (Kepmen 1827). On the B-B' slope which is assumed to represent other slope conditions, kinematic analysis and potentially wedge avalanches.The overall slope stability analysis on the optimal lowwall slope has a slope height geometry design of 100 m, overall slope 290, bench width of 6 meters, bench height of 10 meters, and bench slope of 400, and interamp slope has a bench width of 13 meters. Abstrak. Dalam kajian analisis geoteknik ini penelitian menggunakan metode kesetimbangan batas atau Limit Equilibrium Method (LEM) untuk menganalisis lereng tunggal, lereng interamp dan lereng keseluruhan. Adapun input material properties yang digunakan berasal dari pengklasifikasian massa batuan (RMR) dan hasil pemetaan geoteknik (geotechnical mapping) di lapangan yang juga dapat di aplikasikan untuk dilakukannya analisis kinematik pada lereng yang dapat mewakili lereng lainnya sehingga mendapatkan jenis kelongsoran yang dapat terjadi pada daerah penelitian. Analisis geoteknik untuk dapat meredesain geometri lereng di PT Banjarsari Pribumi ini berdasarkan hasil uji sifat fisik, sifat mekanis batuan yang diperoleh dari pengujian laboratorium dan melakukan penggambilan data geoteknik di lapangan untuk dijadikan bahan evaluasi. Hasil analisis kestabilan lereng keseluruhan menghasilkan penampang A-A’ hingga penampang G-G’ dan lereng tunggal untuk material waste. Dengan menggunakan material properties dan desain lereng yang baru dapat dikatakan bahwa lereng dalam keadaan stabil atau FK > 1,1 (Kepmen 1827). Pada lereng B-B’ yang diasumsikan dapat mewakili kondisi lereng lain dilakukannya analisis kinematik dan berpotensi adanya longsoran baji. Analisis kestabilan lereng keseluruhan pada lereng bagian lowwall yang optimal secara teoritis memiliki desain geometri tinggi lereng 100 m, overall slope 290, lebar bench 6 meter, tinggi bench 10 meter dan kemiringan bench 400, serta lereng interamp memiliki lebar bench 13 meter.
摘要。在岩土分析研究中，采用极限平衡法(LEM)对单个边坡和整体边坡进行分析。所使用的材料属性输入来自分类岩体等级和现场岩土测绘的结果，也可以应用于边坡的运动学分析，可以代表其他边坡，以获得研究区域可能发生的松弛类型。能够重新设计Banjarsari Pribumi PT边坡几何形状的岩土分析是基于物理特性测试的结果，从实验室测试中获得的岩石力学特性，以及在现场进行的岩土数据，这些数据将用作评估材料。整体边坡稳定性分析结果为a - a′到G-G′的横截面，废弃物为单一坡面。采用新的材料特性和边坡设计，可以说边坡处于稳定状态或FK > 1.1 (Kepmen 1827)。假设B-B'斜率代表其他坡度条件，运动学分析和潜在的楔形雪崩。最优低墙边坡整体稳定性分析，坡高几何设计为100 m，总坡度290，台阶宽度6 m，台阶高度10 m，台阶坡度400，坡间台阶宽度13 m。Abstrak。Dalam kajian分析岩土力学，如penelitian menggunakan方法，kesetimbangan batas atau极限平衡法(LEM)， untuk menganalysis, leeng tunggal, leeng interamp和leeng keseluruhan。Adapun输入材料属性yang digunakan berasal dari pengklasifikasian massa batuan (RMR) dan hasil pemetaan geoteknik(岩土测绘)di lapangan yang juga dapat di applikasikan untuk dilakukannya分析kinematik padleeng yang dapat mewakili lereng lainnya sehinga mendapatkan jenis kelongsoran yang dapat terjadi paddaerah penelitian。分析geoteknik untuk dapat merjadesain几何，以PT Banjarsari Pribumi ini berdasarkan hasil uji sifat fisik, sifat mekanis batuan yang diperoleh dari penguin laboratorium dan melakukan penggambilan数据，geoteknik di lapangan untuk dijadikan bahan评估。Hasil分析kestabilan lereng keseluruhan menghasilkan penampang A-A ' hinga penampang G-G ' dan lereng tungal untuk材料废弃物。登安蒙古那坎材料性能与设计，可使阳巴鲁达帕特卡塔坎巴瓦拉古那坎可使坎稳定[f] > 1,1 (Kepmen 1827)。帕达勒伦- B-B ' '阳阳桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥桥。分析了克斯塔勒汗、克塞鲁汗、帕扎勒汗、巴吉安、巴吉安低墙阳最优结构设计几何参数:汀吉勒汗100米、总坡度290米、勒吉勒汗6米、勒吉勒汗10米、克米勒汗400米、塞塔勒汗、勒吉勒汗13米。
{"title":"Analisis Balik Kestabilan Lereng Penambangan Batubara di PT Banjarsari Pribumi Site Banjarsari Kecamatan Merapi Timur, Kabupaten Lahat, Provinsi Sumatera Selatan","authors":"Romario Rahmad Radani, Yuliadi, Iswandaru","doi":"10.29313/bcsme.v2i2.4082","DOIUrl":"https://doi.org/10.29313/bcsme.v2i2.4082","url":null,"abstract":"Abstract. In this geotechnical analysis study the research uses the Limit Equilibrium Method (LEM) method to analyze single slopes and overall slopes. The input of material properties used comes from classification rock mass rating and the results of geotechnical mapping in the field which can also be applied for kinematic analysis on slopes that can represent other slopes to get the type of relaxation that can occur in the research area. Geotechnical analysis to be able to redesign slope geometry at PT Banjarsari Pribumi is based on the results of physical property tests, mechanical properties of rocks obtained from laboratory testing, and conducting geotechnical data in the field to be used as evaluation materials. The results of the overall slope stability analysis resulted in a cross-section of A-A' to a cross-section of G-G' and a single slope for waste material. Using new material properties and slope design it can be said that the slope is in a stable state or FK > 1.1 (Kepmen 1827). On the B-B' slope which is assumed to represent other slope conditions, kinematic analysis and potentially wedge avalanches.The overall slope stability analysis on the optimal lowwall slope has a slope height geometry design of 100 m, overall slope 290, bench width of 6 meters, bench height of 10 meters, and bench slope of 400, and interamp slope has a bench width of 13 meters. \u0000Abstrak. Dalam kajian analisis geoteknik ini penelitian menggunakan metode kesetimbangan batas atau Limit Equilibrium Method (LEM) untuk menganalisis lereng tunggal, lereng interamp dan lereng keseluruhan. Adapun input material properties yang digunakan berasal dari pengklasifikasian massa batuan (RMR) dan hasil pemetaan geoteknik (geotechnical mapping) di lapangan yang juga dapat di aplikasikan untuk dilakukannya analisis kinematik pada lereng yang dapat mewakili lereng lainnya sehingga mendapatkan jenis kelongsoran yang dapat terjadi pada daerah penelitian. Analisis geoteknik untuk dapat meredesain geometri lereng di PT Banjarsari Pribumi ini berdasarkan hasil uji sifat fisik, sifat mekanis batuan yang diperoleh dari pengujian laboratorium dan melakukan penggambilan data geoteknik di lapangan untuk dijadikan bahan evaluasi. Hasil analisis kestabilan lereng keseluruhan menghasilkan penampang A-A’ hingga penampang G-G’ dan lereng tunggal untuk material waste. Dengan menggunakan material properties dan desain lereng yang baru dapat dikatakan bahwa lereng dalam keadaan stabil atau FK > 1,1 (Kepmen 1827). Pada lereng B-B’ yang diasumsikan dapat mewakili kondisi lereng lain dilakukannya analisis kinematik dan berpotensi adanya longsoran baji. Analisis kestabilan lereng keseluruhan pada lereng bagian lowwall yang optimal secara teoritis memiliki desain geometri tinggi lereng 100 m, overall slope 290, lebar bench 6 meter, tinggi bench 10 meter dan kemiringan bench 400, serta lereng interamp memiliki lebar bench 13 meter.","PeriodicalId":187584,"journal":{"name":"Bandung Conference Series: Mining Engineering","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133492159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract. PT Gunung Lagadar Abadi has a problem with tools that are less effective in achieving production, in order to be able to streamline the performance of these tools, it is necessary to do an assessment of the problems, one of which is in the mining processing area where in a crushing plant unit there is a crusher consisting of 3 jaw primary crusher, secondary jaw crusher and tertiary cone crusher parts. The tool has continuity in a work system. At the primary crusher stage, the results obtained are Mechanical Availability (MA) 96.64%, Physical Availability (PA) 96.78%, Use of Availability (UA) 95.69%, Effective of Utilization (EU) 92.61%, and Production rate index (PRI) 35.10%. Furthermore, in the secondary crusher stage, the results obtained are Mechanical Availability (MA) 97.64%, Physical Availability (PA) 97.75%, Use of Availability (UA) 95.15%, Effective of Utilization (EU) 93.01%, and Production rate index (PRI) 93.56%. In the last stage of tertiary crushing, the results obtained are Mechanical Availability (MA) 98.64%, Physical Availability (PA) 98.66%, Use of Availability (UA) 98.55%, Effective of Utilization (EU) 97.23% and Production rate index (PRI) 33.35%, and the resulting OEE 49.29%. Based on the calculation results of the overall equipment effectiveness (OEE) value, which is 49.29%, it can be diagnosed that the overall equipment working on the crushing plant unit is not effective because it is far from an acceptable benchmark value of 85%, there are three components (availability, performance, rate of quality product) which is the biggest problem, one of which is the rate of quality product which is less than 85% so that the resulting production rate index (PRI) is small because the mechanical equipment to produce production does not work in accordance with its capacity, which at least works up to 85%, meanwhile the availability parameter is not a problem because the resulting value is more than 95% as well as the performance parameter. Abstrak. PT Gunung Lagadar Abadi memiliki permasalahan alat yang kurang efektif dalam mencapai produksi, guna untuk dapat mengefektifkan kinerja alat tersebut, perlu dilakukannya pengkajian terhadap permasalahan – permasalahan yang salah satunya berada pada area pengolahan tambang dimana pada suatu unit crushing plant terdapat alat peremuk yang terdiri dari 3 bagian jaw primary crusher, jaw secondary crusher dan tertiary cone crusher. Alat tersebut memiliki kesinambungan dalam suatu sistem kerja. Pada tahap primary crusher diperoleh hasil Mechanical Availability (MA) 96,64%, Phyisical Availability (PA) 96,78%, Use of Availability (UA) 95,69%, Effective of Utilization (EU) 92,61%, dan Production rate index (PRI) 35,10%. Selanjutnya pada tahap secoundary crusher diperolah hasil Mechanical Availability(MA) 97,64%, Phyisical Availability (PA) 97,75%, Use of Availability (UA) 95,15%, Effective of Utilization (EU) 93,01%, dan Production rate index (PRI) 93,56%. Pada tahap terakhir tertiary crushi
摘要。PT Gunung Lagadar Abadi在实现生产方面存在工具效率较低的问题，为了能够简化这些工具的性能，有必要对问题进行评估，其中一个问题是在采矿加工区，在破碎厂单元中有一个由3颚初级破碎机，二级颚破碎机和三级圆锥破碎机组成的破碎机。该工具在工作系统中具有连续性。在初级破碎阶段，得到的结果是机械有效度(MA) 96.64%，物理有效度(PA) 96.78%，利用率(UA) 95.69%，利用率(EU) 92.61%，生产率指数(PRI) 35.10%。在二级破碎阶段，得到的结果分别是机械有效度(MA) 97.64%、物理有效度(PA) 97.75%、利用率(UA) 95.15%、有效利用率(EU) 93.01%和生产率指数(PRI) 93.56%。在三次破碎的最后阶段，得到的结果分别是机械利用率(MA) 98.64%、物理利用率(PA) 98.66%、利用率(UA) 98.55%、有效利用率(EU) 97.23%、生产率指数(PRI) 33.35%，得到的综合利用效率(OEE) 49.29%。根据整体设备效率(OEE)值为49.29%的计算结果，可以诊断出破碎厂机组的整体设备工作效率不高，因为它与可接受的基准值85%相去甚远，其中有三个组成部分(可用性、性能、成品率)是最大的问题。其中一种是成品率低于85%，因此产生的生产率指数(PRI)很小，因为生产产品的机械设备没有按照其容量工作，至少工作到85%，同时可用性参数不是问题，因为结果值大于95%以及性能参数。Abstrak。PT Gunung Lagadar Abadi memiliki permasalahan alat yang kurang efektif dalam menapai产品，guna untuk dapat mengefektifkan kinerja alattersebut, perludilakukannya pengkajian terhadap permasalahan - permasalahan yang salah satunya berada pada地区pengolahan tambang dimana pada suatu单位破碎厂terdapat peremuk yang terdiri dari 3 bagian颚式初级破碎机，颚式二级破碎机和三级圆锥破碎机。阿拉伯文:阿拉伯文:阿拉伯文:阿拉伯文帕达塔哈普初级破碎机的机械利用率(MA)为96,64%，物理利用率(PA)为96,78%，利用率(UA)为95,69%，利用率(EU)为92,61%，产量指数(PRI)为35,10%。Selanjutnya pada tahap二级破碎机的机械利用率(MA)为97,64%，物理利用率(PA)为97,75%，利用率(UA)为95,15%，利用率(EU)为93,01%，产量指数(PRI)为93,56%。帕达塔哈特拉克尔三级破碎双石料机械利用率(MA) 98.64%，物理利用率(PA) 98.66%，利用率(UA) 98.55%，有效利用率(EU) 97.23%，产量指数(PRI) 33.35%，丹OEE阳地哈斯尔干49.29%。Berdasarkan hasil perhitungan nilai整体设备效率(OEE)为49.29%，sehinga dapat诊断为49.29%，sehinga dapat诊断为48.29%，bahawa keseluhan alatang bekerja patada单元破碎厂tetekkarenakan jahuh dasniai标准杨dapat diterima yaitu sebasar 85%， terdapat titima komponen(可用性、性能、率ofe质量产品)杨menjadi permasalahan tersebesar salah satunya篇率ofe优质产品杨kurang达里语85% sehinga汝生产率指数(PRI)杨dihasilkan kecil林嘉欣alat mekanis为她menghasilkan produksi有些bekerja sesuai dengan kapasitasnya杨setidaknya alat bekerja mencapai 85%, sementara itu参数可用性有些menjadi permasalahan dikarenakan汝杨dihasilkan lebih达里语95% begitu普拉dengan参数性能。
{"title":"Evaluasi Kinerja Crushing Plant Menggunakan Metode OEE dan Hubungannya dengan Production Rate Index (PRI) di PT Gunung Lagadar Abadi, Kecamatan Margaasih, Kabupaten Bandung, Provinsi Jawa Barat","authors":"Firman Firdaus Has, Solihin, Rully Nurhasan Ramadani","doi":"10.29313/bcsme.v2i2.3594","DOIUrl":"https://doi.org/10.29313/bcsme.v2i2.3594","url":null,"abstract":"Abstract. PT Gunung Lagadar Abadi has a problem with tools that are less effective in achieving production, in order to be able to streamline the performance of these tools, it is necessary to do an assessment of the problems, one of which is in the mining processing area where in a crushing plant unit there is a crusher consisting of 3 jaw primary crusher, secondary jaw crusher and tertiary cone crusher parts. The tool has continuity in a work system. At the primary crusher stage, the results obtained are Mechanical Availability (MA) 96.64%, Physical Availability (PA) 96.78%, Use of Availability (UA) 95.69%, Effective of Utilization (EU) 92.61%, and Production rate index (PRI) 35.10%. Furthermore, in the secondary crusher stage, the results obtained are Mechanical Availability (MA) 97.64%, Physical Availability (PA) 97.75%, Use of Availability (UA) 95.15%, Effective of Utilization (EU) 93.01%, and Production rate index (PRI) 93.56%. In the last stage of tertiary crushing, the results obtained are Mechanical Availability (MA) 98.64%, Physical Availability (PA) 98.66%, Use of Availability (UA) 98.55%, Effective of Utilization (EU) 97.23% and Production rate index (PRI) 33.35%, and the resulting OEE 49.29%. Based on the calculation results of the overall equipment effectiveness (OEE) value, which is 49.29%, it can be diagnosed that the overall equipment working on the crushing plant unit is not effective because it is far from an acceptable benchmark value of 85%, there are three components (availability, performance, rate of quality product) which is the biggest problem, one of which is the rate of quality product which is less than 85% so that the resulting production rate index (PRI) is small because the mechanical equipment to produce production does not work in accordance with its capacity, which at least works up to 85%, meanwhile the availability parameter is not a problem because the resulting value is more than 95% as well as the performance parameter. \u0000Abstrak. PT Gunung Lagadar Abadi memiliki permasalahan alat yang kurang efektif dalam mencapai produksi, guna untuk dapat mengefektifkan kinerja alat tersebut, perlu dilakukannya pengkajian terhadap permasalahan – permasalahan yang salah satunya berada pada area pengolahan tambang dimana pada suatu unit crushing plant terdapat alat peremuk yang terdiri dari 3 bagian jaw primary crusher, jaw secondary crusher dan tertiary cone crusher. Alat tersebut memiliki kesinambungan dalam suatu sistem kerja. Pada tahap primary crusher diperoleh hasil Mechanical Availability (MA) 96,64%, Phyisical Availability (PA) 96,78%, Use of Availability (UA) 95,69%, Effective of Utilization (EU) 92,61%, dan Production rate index (PRI) 35,10%. Selanjutnya pada tahap secoundary crusher diperolah hasil Mechanical Availability(MA) 97,64%, Phyisical Availability (PA) 97,75%, Use of Availability (UA) 95,15%, Effective of Utilization (EU) 93,01%, dan Production rate index (PRI) 93,56%. Pada tahap terakhir tertiary crushi","PeriodicalId":187584,"journal":{"name":"Bandung Conference Series: Mining Engineering","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124766300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-28DOI: 10.29313/bcsme.v2i2.3567
Rizky Ade Pradana, Elfida Moralista, Zaenal
Abstract. Conveyor structure is a means of transportation used in the coal mining industry to assist the transfer of minerals. The conveyor structure is made of carbon steel which is subject to corrosion. Corrosion will cause the conveyor structure to decrease in thickness. Therefore, it is necessary to control and monitor corrosion on the conveyor structure. The purpose of this study is to determine the type of corrosion, the corrosion control applied to the conveyor structure. The methodology used in this study is the thickness of the conveyor structure. Measurements were made using the Ultrasonic Thickness Gauge TT 130 on a 90 meter long conveyor structure with 3 segments and 25 test points. Environmental conditions in the 2015-2019 period have an average rainfall of 197.98 mm/year, an average air temperature of 26.91oC and an air humidity of 83.62%. The type of corrosion that occurs in the conveyor structure is uniform corrosion. In the identification of corrosion, the use of a 3-layer coating method, namely the primer coating using Seaguard 5000, Intermediate coating Sherglass FF, and Top coating using aliphatic acrylic modified polyurethane. Abstrak. Struktur conveyor adalah alat angkut yang digunakan pada industri pertambangan batubara untuk menunjang pemindahan material bahan galian. Struktur conveyor terbuat dari baja karbon yang dapat mengalami korosi. Korosi akan menyebabkan struktur conveyor mengalami pengurangan ketebalan. Oleh karena itu, maka diperlukana pengendalian dan monitoring korosi pada struktur conveyor. Tujuan dilakukannya penelitian ini yaitu mengetahui jenis korosi, metode pengendalian korosi yang diaplikasikan pada stuktur conveyor. Metodologi yang digunakan dalam penelitian ini yaitu pengukuran ketebalan struktur conveyor. Pengukuran dilakukan menggunakan alat Ultrasonic Thickness Gauge TT 130 pada struktur conveyor sepanjang 90 meter dengan 3 segmen dan 25 test point. Kondisi lingkungan dalam rentang waktu 2015-2019 memiliki curah hujan rata-rata 197,98 mm/tahun, temperature udara rata-rata 26,91oC dan kelembapan udara 83,62%. Jenis korosi ytang terjadi pada struktur conveyor yaitu korosi merata. Dalam pengenalian korosi digunakan metode coating 3 lapis yaitu primer coating menggunakan Seaguard 5000, Intermediate coating Sherglass FF, dan Top coating menggunakan aliphatic acrylic modified polyurethane.
摘要。输送机结构是一种用于煤矿工业中辅助矿物转移的运输工具。输送机结构由碳钢制成，易受腐蚀。腐蚀会导致输送机结构厚度下降。因此，有必要对输送机结构的腐蚀进行控制和监测。本研究的目的是确定腐蚀类型，将腐蚀控制应用于输送机结构。本研究中使用的方法是输送机结构的厚度。使用超声波测厚仪TT 130对一个90米长的输送机结构进行了测量，该结构有3段和25个测试点。2015-2019年环境条件平均降雨量197.98 mm/年，平均气温26.91℃，空气湿度83.62%。输送机结构中发生的腐蚀类型为均匀腐蚀。在进行腐蚀鉴定时，采用3层涂布方法，即底漆采用Seaguard 5000，中间层采用Sherglass FF，面漆采用脂肪族丙烯酸改性聚氨酯。Abstrak。结构输送机adalah alat angkut yang digunakan pada industry pertambangan batubara untuk menunjang pemindahan物料bahan galian。strukturr输送带terbuterdari baja karbon yang dapat mengalami korosi。Korosi akan menyebabkan罢工输送机mengalami pengurangan ketebalan。Oleh karena itu, maka diperlukana pengendalian dan监测korosi pada结构输送机。土娟dilakukannya penelitian ini yitu mengetahui jenis korosi，方法pengendalian korosi yang diaplikasikan padakutur输送机。方法学杨地古那坎，dalam, penelitian, yyitu，企鹅，ketebalan，结构输送机。企鹅dilakukan menggunakan alat超声波测厚仪TT 130 padadstruturturconveyor sepanjang 90米登岸3段段段段25测试点。Kondisi lingkungan dalam rentang waktu 2015-2019 memiliki curah hujan rata-rata 197,98 mm/tahun，温度udara rata-rata 26,91 oc dan kelembapan udara 83,62%。Jenis korosi ytang terjadi pada结构输送机yitu korosi merata。3 .青金石崖图底漆蒙古那坎海防5000，中间漆sh玻璃FF，丹面漆蒙古那坎脂肪族丙烯酸改性聚氨酯。
{"title":"Remaining Service Life Struktur Conveyor B pada Tambang Batubara PT XYZ di Kabupaten Kotabaru, Provinsi Kalimantan Selatan","authors":"Rizky Ade Pradana, Elfida Moralista, Zaenal","doi":"10.29313/bcsme.v2i2.3567","DOIUrl":"https://doi.org/10.29313/bcsme.v2i2.3567","url":null,"abstract":"Abstract. Conveyor structure is a means of transportation used in the coal mining industry to assist the transfer of minerals. The conveyor structure is made of carbon steel which is subject to corrosion. Corrosion will cause the conveyor structure to decrease in thickness. Therefore, it is necessary to control and monitor corrosion on the conveyor structure. The purpose of this study is to determine the type of corrosion, the corrosion control applied to the conveyor structure. The methodology used in this study is the thickness of the conveyor structure. Measurements were made using the Ultrasonic Thickness Gauge TT 130 on a 90 meter long conveyor structure with 3 segments and 25 test points. Environmental conditions in the 2015-2019 period have an average rainfall of 197.98 mm/year, an average air temperature of 26.91oC and an air humidity of 83.62%. The type of corrosion that occurs in the conveyor structure is uniform corrosion. In the identification of corrosion, the use of a 3-layer coating method, namely the primer coating using Seaguard 5000, Intermediate coating Sherglass FF, and Top coating using aliphatic acrylic modified polyurethane. \u0000Abstrak. Struktur conveyor adalah alat angkut yang digunakan pada industri pertambangan batubara untuk menunjang pemindahan material bahan galian. Struktur conveyor terbuat dari baja karbon yang dapat mengalami korosi. Korosi akan menyebabkan struktur conveyor mengalami pengurangan ketebalan. Oleh karena itu, maka diperlukana pengendalian dan monitoring korosi pada struktur conveyor. Tujuan dilakukannya penelitian ini yaitu mengetahui jenis korosi, metode pengendalian korosi yang diaplikasikan pada stuktur conveyor. Metodologi yang digunakan dalam penelitian ini yaitu pengukuran ketebalan struktur conveyor. Pengukuran dilakukan menggunakan alat Ultrasonic Thickness Gauge TT 130 pada struktur conveyor sepanjang 90 meter dengan 3 segmen dan 25 test point. Kondisi lingkungan dalam rentang waktu 2015-2019 memiliki curah hujan rata-rata 197,98 mm/tahun, temperature udara rata-rata 26,91oC dan kelembapan udara 83,62%. Jenis korosi ytang terjadi pada struktur conveyor yaitu korosi merata. Dalam pengenalian korosi digunakan metode coating 3 lapis yaitu primer coating menggunakan Seaguard 5000, Intermediate coating Sherglass FF, dan Top coating menggunakan aliphatic acrylic modified polyurethane.","PeriodicalId":187584,"journal":{"name":"Bandung Conference Series: Mining Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130051288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-28DOI: 10.29313/bcsme.v2i2.3644
Rijal Aditya Prasetya, Zaenal, N. F. Isniarno
Abstract. This mining road evaluation activity is carried out with the aim of knowing the condition of the road geometry used as well as efforts to improve road geometry and production before repairing and after repairing the mining road including straight road width, bend road width, road slope, bend radius, superelevation, transverse slope, and the actual rimpull. This research was conducted using primary and secondary data collection methods, data processing techniques and data analysis techniques, which were compared with the standards in Decree No. 1827/K/30/MEM/2018 and AASHTO in an effort to increase mining production. Based on the results of the research, the actual width of the straight road is between 3,95 – 12,90 meters and the width of the bend road is 5,13 – 9,77 meters. For the road slope, the grade varies from 1,596% - 37,35% with a maximum standard grade of 12% so that there are 4 road segments that are repaired. The actual superelevation condition starts from 13,55% - 38,56% based on the calculation of the minimum superelevation is 6% so that repair simulations are carried out on each superelevation segment. Based on the results of calculations regarding production before repair of loading equipment of 81,61 BCM/hour and transportation equipment of 81,58 BCM/hour, with the company's production target of 100 BCM/hour. After simulating the improvement of road geometry, the production after repair of loading equipment was 105,91 BCM/hour and transportation equipment of 105,74 BCM/hour. The increase in production occurs because the circulation time of the conveyance is getting faster, where before the repair the cycle time is 13.03 minutes, while after the simulation the repair is 8.01 minutes. Abstrak. Kajian jalan tambang ini dilakukan dengan tujuan mengetahui produksi sebelum perbaikan geometri jalan tambang. Kemudian mengetahui upaya perbaikan geometri jalan tambang berdasarkan kesesuaian pada Kepmen No. 1827/K/30/MEM/2018 dan AASHTO dalam upaya mencapai target produksi. Tujuan selanjutnya mengetahui produksi dari alat muat dan alat angkut yang didapatkan setelah perbaikan geometri jalan tambang. Adapun geometri jalan tambang meliputi lebar jalan lurus, lebar jalan tikungan, kemiringan jalan, jari-jari tikungan, superelevasi, kemiringan melintang. Berdasarkan hasil penelitian kondisi lebar jalan lurus aktual berkisar antara 3,95 – 12,90 meter dan lebar jalan tikungan sebesar 5,13 – 9,77 meter. Kemiringan jalan memiliki grade bervariasi dimulai dari 1,596% - 37,35% dengan standar grade maksimal sebesar 12%. Kondisi superelevasi aktual dimulai dari 13,55% - 38,56% berdasarkan perhitungan superelevasi minimum adalah 6%, sehingga dilakukan simulasi perbaikan pada setiap segmen superelevasi. Berdasarkan hasil perhitungan mengenai produksi sebelum perbaikan alat muat sebesar 81,61 BCM/jam dan alat angkut sebesar 81,58 BCM/jam, dengan target produksi perusahaan sebesar 100 BCM/jam. Setelah dilakukan simulasi perbaikan geometri jalan di
摘要。本次采矿道路评价活动的目的是了解所使用的道路几何形状的状况，以及在修复前和修复后改善道路几何形状和生产的努力，包括直线道路宽度、弯道宽度、道路坡度、弯道半径、超高标高、横向坡度和实际边缘拉力。本研究采用一手和二手数据收集方法、数据处理技术和数据分析技术，并与1827/K/30/MEM/2018号法令和AASHTO的标准进行比较，以提高采矿产量。根据研究结果，直道的实际宽度为3.95 ~ 12.90 m，弯道的实际宽度为5.13 ~ 9.77 m。对于道路坡度，坡度从1596 - 3735%不等，最高标准坡度为12%，因此有4段道路需要修复。在计算最小超标高为6%的基础上，实际超标高从13.55% ~ 38.56%开始，对每个超标高段进行修复模拟。根据装货设备维修前产量81,61 BCM/小时、运输设备维修前产量81,58 BCM/小时的计算结果，公司生产目标为100 BCM/小时。模拟改善道路几何形状后，装车设备修复后的产量为105,91 BCM/小时，运输设备修复后的产量为105,74 BCM/小时。产量的增加是由于输送系统的循环时间越来越快，其中修复前的周期时间为13.03分钟，而模拟后的修复时间为8.01分钟。Abstrak。吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安吉安Kemudian mengetahui upaya perbaikan geometri jalan tambang berdasarkan kesesaian padkepmen No. 1827/K/30/MEM/2018 dan AASHTO dalam upaya menapai目标产品。土语selanjutnya mengetahui produksi dari alat muat danalat angkut yang didapatkan setelah perbaikan geometri jalan tambang。Adapun geometri jalan tambang meliputi lebar jalan lurus, lebar jalan tikungan, kemiringan jalan, jari-jari tikungan, superelevasi, kemiringan melintang。Berdasarkan hasil penelitian kondisi lebar jalan lurus aktual berkisar antara 3,95 - 12,90米，但lebar jalan tikungan sebesar 5,13 - 9,77米。凯密林安贾兰姆米里基等级bervariasdimulai达1,596% - 37,35%登甘标准等级maksimal sebesar 12%。Kondisi superelevasi实际高度135,55 % - 38,56%，berdasarkan perhitungan superelevasi最小高度6%，sehinga dilakukan simulasi perbaikan padseap分段超级高度。Berdasarkan hasil perhitungan mengenai产品perbaikan alat muat sebesar 81,61 BCM/jam, alat angkut sebesar 81,58 BCM/jam, dengan目标产品perusahaan sebesar 100 BCM/jam。Setelah dilakukan simulasi perbaikan geometri jalan didapatkan producksi alat muat sebesar 105,91 BCM/jam和alat angkut sebesar 105,74 BCM/jam。Peningkatan produksi terjadi karena waktu edar dari alat angkut yang semakin cepat, dimana saat sebelum perbaikan waktu edarnya 13,03, sedangkan setelah dilakukan simulasi perbaikan menjadi 8,01。
{"title":"Kajian Geometri Jalan Tambang untuk Meningkatkan Produksi Penambangan Andesit PT Gunung Kulalet Kecamatan Baleendah, Kabupaten Bandung, Provinsi Jawa Barat","authors":"Rijal Aditya Prasetya, Zaenal, N. F. Isniarno","doi":"10.29313/bcsme.v2i2.3644","DOIUrl":"https://doi.org/10.29313/bcsme.v2i2.3644","url":null,"abstract":"Abstract. This mining road evaluation activity is carried out with the aim of knowing the condition of the road geometry used as well as efforts to improve road geometry and production before repairing and after repairing the mining road including straight road width, bend road width, road slope, bend radius, superelevation, transverse slope, and the actual rimpull. This research was conducted using primary and secondary data collection methods, data processing techniques and data analysis techniques, which were compared with the standards in Decree No. 1827/K/30/MEM/2018 and AASHTO in an effort to increase mining production. Based on the results of the research, the actual width of the straight road is between 3,95 – 12,90 meters and the width of the bend road is 5,13 – 9,77 meters. For the road slope, the grade varies from 1,596% - 37,35% with a maximum standard grade of 12% so that there are 4 road segments that are repaired. The actual superelevation condition starts from 13,55% - 38,56% based on the calculation of the minimum superelevation is 6% so that repair simulations are carried out on each superelevation segment. Based on the results of calculations regarding production before repair of loading equipment of 81,61 BCM/hour and transportation equipment of 81,58 BCM/hour, with the company's production target of 100 BCM/hour. After simulating the improvement of road geometry, the production after repair of loading equipment was 105,91 BCM/hour and transportation equipment of 105,74 BCM/hour. The increase in production occurs because the circulation time of the conveyance is getting faster, where before the repair the cycle time is 13.03 minutes, while after the simulation the repair is 8.01 minutes. \u0000Abstrak. Kajian jalan tambang ini dilakukan dengan tujuan mengetahui produksi sebelum perbaikan geometri jalan tambang. Kemudian mengetahui upaya perbaikan geometri jalan tambang berdasarkan kesesuaian pada Kepmen No. 1827/K/30/MEM/2018 dan AASHTO dalam upaya mencapai target produksi. Tujuan selanjutnya mengetahui produksi dari alat muat dan alat angkut yang didapatkan setelah perbaikan geometri jalan tambang. Adapun geometri jalan tambang meliputi lebar jalan lurus, lebar jalan tikungan, kemiringan jalan, jari-jari tikungan, superelevasi, kemiringan melintang. Berdasarkan hasil penelitian kondisi lebar jalan lurus aktual berkisar antara 3,95 – 12,90 meter dan lebar jalan tikungan sebesar 5,13 – 9,77 meter. Kemiringan jalan memiliki grade bervariasi dimulai dari 1,596% - 37,35% dengan standar grade maksimal sebesar 12%. Kondisi superelevasi aktual dimulai dari 13,55% - 38,56% berdasarkan perhitungan superelevasi minimum adalah 6%, sehingga dilakukan simulasi perbaikan pada setiap segmen superelevasi. Berdasarkan hasil perhitungan mengenai produksi sebelum perbaikan alat muat sebesar 81,61 BCM/jam dan alat angkut sebesar 81,58 BCM/jam, dengan target produksi perusahaan sebesar 100 BCM/jam. Setelah dilakukan simulasi perbaikan geometri jalan di","PeriodicalId":187584,"journal":{"name":"Bandung Conference Series: Mining Engineering","volume":"434 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115462670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-28DOI: 10.29313/bcsme.v2i2.3645
A. S. Dwi Wahyullah, Zaenal, N. F. Isniarno
Abstract. The condition of mechanical which has almost reached the service life of the tool requent breakdowns, resulting in decreased machine performance and higher operating costs, of course, affects productivity and production which will decrease. Therefore it is necessary to replace the tool. In planning the replacement of mechanical equipment, it is necessary to conduct a technical and economical study. The technical study includes a study of equipment production, and an economic study includes operating costs, ownership costs, Present Worth Cost and Production Unit Cost values. The research method is taking primary data and also secondary data. Based on the results of technical and economic studies, the old excavating equipment with a production of 382.008.01 BCM/year and the new excavating equipment with a production of 443.071,00 BCM/year. While the old transporting production with production of 381,763.01 BCM/year and new transporting production of 441,953. 28 BCM/year. The cost of calculating the cost of Production Unit Cost for old excavating equipment is Rp. 4,657.94 BCM and New digging-loading equipment of Rp. 3.725,53 BCM. For the old transporting of the cost of Production Unit Cost Rp.2. 720.38 BCM and new transporting of Rp. 2.162,62 BCM. Based on technical and economic studies for excavating and transporting equipment needs to be replaced because the productivity of new tools is greater and operating costs are more efficient than old tools, from the results of Unit Cost Production for excavating and transporting new tools is more efficient than old tools, as well as long-term investment if buying new tools. Abstrak. Kondisi dari alat mekanis yang hampir mencapai batas umur pemakaian dan sering terjadi kerusakan, sehingga mengalami penurunan kinerja mesin dan biaya operasi alat semakin besar, tentunya mempengaruhi produktivitas dan produksi yang akan semakin menurun. Oleh karena itu maka perlu dilakukan penggantian alat. Dalam merencanakan penggantian alat mekanis maka perlu dilakukan kajian secara teknis dan ekonomis. Untuk kajian teknis meliputi kajian produksi alat, dan kajian ekonomis meliputi biaya operasi, biaya kepemilikan, nilai Present Worth Cost dan nilai Production Unit Cost. Metode penelitian dilakukannya pengambilan data primer dan data sekunder. Berdasarkan hasil kajian tekniks dan ekonomis, alat gali-muat lama dengan produksi sebesar 382.001,00 BCM/tahun dan alat gali-muat baru dengan produksi sebesar 443.071,25 BCM/tahun. Sedangkan alat angkut lama produksi dengan produksi sebesar 381.763,02 BCM/tahun dan alat angkut baru produksi sebesar 441.953,28 BCM/tahun. Biaya perhitungan biaya Production Unit Cost untuk alat gali-muat lama sebesar Rp. 4.657,94 BCM dan alat gali-muat baru yaitu sebesar Rp. 3.725,53 BCM. Untuk alat angkut lama biaya Production Unit Cost Rp.2.720,38 BCM dan alat angkut baru sebesar Rp.2.162,62 BCM. Berdasarkan kajian teknis dan ekonomis untuk alat gali-muat dan alat angkut perlu diganti karena
摘要。在机械几乎已达到使用寿命的情况下，刀具频繁发生故障，导致机床性能下降，运行成本上升，当然也会影响生产率和产量的下降。因此更换刀具是必要的。在规划机械设备的更换时，有必要进行技术经济研究。技术研究包括对设备生产的研究，经济研究包括运营成本、拥有成本、现值成本和生产单位成本值。研究方法采用一手资料和二次资料相结合的方法。根据技术经济研究结果，旧挖掘设备的产量为382.008.01 BCM/年，新挖掘设备的产量为443.071万BCM/年。旧运输产量为381,763.01 BCM/年，新运输产量为441,953 BCM/年。28 BCM /年。计算单位生产成本的成本，旧挖掘设备为4,657.94 BCM，新挖掘装载设备为3,725,53 BCM。对于旧的运输成本，生产单位成本Rp.2。720.38 BCM和Rp. 2.162,62 BCM的新运输。根据对挖掘运输设备需要更换的技术经济研究，因为新工具的生产率比旧工具更大，操作成本比旧工具更有效，从单位成本生产的结果来看，挖掘运输新工具比旧工具更有效，以及购买新工具的长期投资。Abstrak。Kondisi dari alat mekanis yang hampir menapapan dan sering terjadi kerusakan, sehinga mengalami penurunan kinerja mesin dan biaya peracin besar, tentenya menpengaruhi producktivitas dan producksi yang akan semakin menuran。Oleh kareni maka perlu dilakukan penggtianalat。大连，大连，大连，大连，大连，大连，大连，大连，大连，大连。本文介绍了生产成本、生产成本、生产成本、现值成本和生产单位成本。方法penelitian dilakukannya pengambilan数据入门和数据查找。Berdasarkan hasil kajian技术与经济，alat gali-muat lama dengan producksi sebesar 382.001万BCM/tahun, alat gali-muat baru dengan producksi sebesar 443.071,25 BCM/tahun。Sedangkan alat angkut lama producksi dengan producksi sebesar 381.763,02 BCM/tahun, alat angkut baru producksi sebesar 441.953,28 BCM/tahun。Biaya perhitungan Biaya生产单位成本untuk alat gali-muat lama sebesar 4.657,94 BCM和alat gali-muat baru yitu sebesar 3.725,53 BCM。Untuk alat angkut lama biaya生产单位成本为2.720,38亿美元，alat angkut baru sebesar生产单位成本为2.162,62亿美元。Berdasarkan kajian teknis丹ekonomi为她alat gali-muat丹alat angkut perlu diganti林嘉欣produktivitas alat巴鲁lebih大的丹biaya operasi lebih hemat dibandingkan alat喇嘛达里语hasil生产单位成本为她alat gali-muat丹angkut巴鲁lebih hemat dibandingkan alat喇嘛,舒达investasi jangka panjang吉卡membeli红十字会内唯一一名alat巴鲁。
{"title":"Kajian Teknis dan Ekonomis dalam Merencanakan Penggantian Alat Gali-Muat dan Angkut pada Penambangan Nikel Laterit PT Tonia Mitra Sejahtera Kecamatan Kabaena Tengah Kabupaten Bombana Provinsi Sulawesi Tenggara","authors":"A. S. Dwi Wahyullah, Zaenal, N. F. Isniarno","doi":"10.29313/bcsme.v2i2.3645","DOIUrl":"https://doi.org/10.29313/bcsme.v2i2.3645","url":null,"abstract":"Abstract. The condition of mechanical which has almost reached the service life of the tool requent breakdowns, resulting in decreased machine performance and higher operating costs, of course, affects productivity and production which will decrease. Therefore it is necessary to replace the tool. In planning the replacement of mechanical equipment, it is necessary to conduct a technical and economical study. The technical study includes a study of equipment production, and an economic study includes operating costs, ownership costs, Present Worth Cost and Production Unit Cost values. The research method is taking primary data and also secondary data. Based on the results of technical and economic studies, the old excavating equipment with a production of 382.008.01 BCM/year and the new excavating equipment with a production of 443.071,00 BCM/year. While the old transporting production with production of 381,763.01 BCM/year and new transporting production of 441,953. 28 BCM/year. The cost of calculating the cost of Production Unit Cost for old excavating equipment is Rp. 4,657.94 BCM and New digging-loading equipment of Rp. 3.725,53 BCM. For the old transporting of the cost of Production Unit Cost Rp.2. 720.38 BCM and new transporting of Rp. 2.162,62 BCM. Based on technical and economic studies for excavating and transporting equipment needs to be replaced because the productivity of new tools is greater and operating costs are more efficient than old tools, from the results of Unit Cost Production for excavating and transporting new tools is more efficient than old tools, as well as long-term investment if buying new tools. \u0000Abstrak. Kondisi dari alat mekanis yang hampir mencapai batas umur pemakaian dan sering terjadi kerusakan, sehingga mengalami penurunan kinerja mesin dan biaya operasi alat semakin besar, tentunya mempengaruhi produktivitas dan produksi yang akan semakin menurun. Oleh karena itu maka perlu dilakukan penggantian alat. Dalam merencanakan penggantian alat mekanis maka perlu dilakukan kajian secara teknis dan ekonomis. Untuk kajian teknis meliputi kajian produksi alat, dan kajian ekonomis meliputi biaya operasi, biaya kepemilikan, nilai Present Worth Cost dan nilai Production Unit Cost. Metode penelitian dilakukannya pengambilan data primer dan data sekunder. Berdasarkan hasil kajian tekniks dan ekonomis, alat gali-muat lama dengan produksi sebesar 382.001,00 BCM/tahun dan alat gali-muat baru dengan produksi sebesar 443.071,25 BCM/tahun. Sedangkan alat angkut lama produksi dengan produksi sebesar 381.763,02 BCM/tahun dan alat angkut baru produksi sebesar 441.953,28 BCM/tahun. Biaya perhitungan biaya Production Unit Cost untuk alat gali-muat lama sebesar Rp. 4.657,94 BCM dan alat gali-muat baru yaitu sebesar Rp. 3.725,53 BCM. Untuk alat angkut lama biaya Production Unit Cost Rp.2.720,38 BCM dan alat angkut baru sebesar Rp.2.162,62 BCM. Berdasarkan kajian teknis dan ekonomis untuk alat gali-muat dan alat angkut perlu diganti karena","PeriodicalId":187584,"journal":{"name":"Bandung Conference Series: Mining Engineering","volume":"179 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116172788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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