Pub Date : 2023-08-28DOI: 10.26418/jts.v23i3.66798
Tansa Ihwanul Amal, Vivi Bachtiar, Muhammad Yusuf
In general, Pontianak and the surrounding area have soft soil characteristics with a low carrying capacity compared to other soil types. This condition is the leading cause of several construction failures, especially in constructing transportation or road facilities and infrastructure. One form of construction failure is the state of the road, which has experienced cracks and bumps in a relatively short time after the construction of the road. Innovations in road pavement construction are needed to overcome these conditions. This research aims to obtain the carrying capacity of reinforced concrete road pavement construction with fins by being given a layer of sand on cohesive and non-cohesive soils. This research was carried out by testing numerically through plate modelling with the PLAXIS 3D application and unique software in reviewing the modelling structure. In this study, the effect of fin length at a slope of 30° on increasing the ultimate load of slabs on cohesive and non-cohesive soils was investigated using the Elastic-Plastic method and with a computer program, which was then plotted into a graph of the relationship between load versus settlement and a diagram of the relationship between ultimate load vs. fin length. Based on the computer program output results, the five models' most significant soil maximum load (Pu) is 22.5 kN in the 40 cm fin length modelling. Even though they have different parameters, the two soils show the same results and behaviour. These results show that the most optimal modelling in this study is on a 40 cm long finned concrete slab because the soil carrying capacity is higher than other models.
{"title":"REVIEW OF BEARING CAPACITY OF FINNED CONCRETE SLABS BASED ON THE NUMERICAL VARIATION OF LENGTH","authors":"Tansa Ihwanul Amal, Vivi Bachtiar, Muhammad Yusuf","doi":"10.26418/jts.v23i3.66798","DOIUrl":"https://doi.org/10.26418/jts.v23i3.66798","url":null,"abstract":"In general, Pontianak and the surrounding area have soft soil characteristics with a low carrying capacity compared to other soil types. This condition is the leading cause of several construction failures, especially in constructing transportation or road facilities and infrastructure. One form of construction failure is the state of the road, which has experienced cracks and bumps in a relatively short time after the construction of the road. Innovations in road pavement construction are needed to overcome these conditions. This research aims to obtain the carrying capacity of reinforced concrete road pavement construction with fins by being given a layer of sand on cohesive and non-cohesive soils. This research was carried out by testing numerically through plate modelling with the PLAXIS 3D application and unique software in reviewing the modelling structure. In this study, the effect of fin length at a slope of 30° on increasing the ultimate load of slabs on cohesive and non-cohesive soils was investigated using the Elastic-Plastic method and with a computer program, which was then plotted into a graph of the relationship between load versus settlement and a diagram of the relationship between ultimate load vs. fin length. Based on the computer program output results, the five models' most significant soil maximum load (Pu) is 22.5 kN in the 40 cm fin length modelling. Even though they have different parameters, the two soils show the same results and behaviour. These results show that the most optimal modelling in this study is on a 40 cm long finned concrete slab because the soil carrying capacity is higher than other models.","PeriodicalId":52838,"journal":{"name":"Jurnal Teknik Sipil","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135135582","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 : 2023-08-28DOI: 10.26418/jts.v23i3.63983
Mustakim Mustakim, Asrul Asrul, Asnita Virlayani
The problem of plastic waste that needs to be handled and managed optimally can cause environmental damage. This study aims to test the compressive strength and water absorption value of paving blocks made of plastic which are designed using a mixed variation of V50-50 (50% sand, 50% plastic), V25-75 (25% sand, 75% plastic) and V0-100 (0% sand, 100% plastic) of the total proportion of the paving blocks mix. The method is carried out by melting PP (Polypropylene) mineral glass plastic, mixing with sand based on variations, printing according to the size of the paving block, and using as a test sample in the form of a dice. The average compressive strength test results show that the model with code V25-75 has a relatively higher compressive strength value than V50-50 and V0-100. The average compressive strength value of the sample with code V25-75 is 11.53 MPa, followed by code V50-50 of 9.63 MPa, and the lowest is coded V0-100 of 3.70 MPa. The compressive strength value is influenced by the optimal percentage between sand and plastic; plastic serves as a binder for sand in a mixture of paving blocks. The rate of water absorption value will continue to decrease along with the addition of plastic waste in the paving block mixture; V50-50 is 1.44, V25-75 is 0.88, and V0-100 is 0.16. This research is expected to be applied by the community to make paving block products to reduce the amount of plastic waste globally.
{"title":"THE UTILIZING OF RECYCLED PLASTIC WASTE AS AN ALTERNATIVE FOR ZERO CEMENT PAVING BLOCKS","authors":"Mustakim Mustakim, Asrul Asrul, Asnita Virlayani","doi":"10.26418/jts.v23i3.63983","DOIUrl":"https://doi.org/10.26418/jts.v23i3.63983","url":null,"abstract":"The problem of plastic waste that needs to be handled and managed optimally can cause environmental damage. This study aims to test the compressive strength and water absorption value of paving blocks made of plastic which are designed using a mixed variation of V50-50 (50% sand, 50% plastic), V25-75 (25% sand, 75% plastic) and V0-100 (0% sand, 100% plastic) of the total proportion of the paving blocks mix. The method is carried out by melting PP (Polypropylene) mineral glass plastic, mixing with sand based on variations, printing according to the size of the paving block, and using as a test sample in the form of a dice. The average compressive strength test results show that the model with code V25-75 has a relatively higher compressive strength value than V50-50 and V0-100. The average compressive strength value of the sample with code V25-75 is 11.53 MPa, followed by code V50-50 of 9.63 MPa, and the lowest is coded V0-100 of 3.70 MPa. The compressive strength value is influenced by the optimal percentage between sand and plastic; plastic serves as a binder for sand in a mixture of paving blocks. The rate of water absorption value will continue to decrease along with the addition of plastic waste in the paving block mixture; V50-50 is 1.44, V25-75 is 0.88, and V0-100 is 0.16. This research is expected to be applied by the community to make paving block products to reduce the amount of plastic waste globally.","PeriodicalId":52838,"journal":{"name":"Jurnal Teknik Sipil","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135134137","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 : 2023-08-27DOI: 10.26418/jts.v23i3.66513
Charles Gonzaga Tangkadas, S. Soeryamassoeka, Azwa Nirmala
Rainfall is a critical element in the hydrological cycle. Therefore, accurate rainfall inputs are essential for reliable hydrological predictions in various water resource analyses. Many areas in the tropics depend on rainfall for multiple needs because rainfall has an essential influence on numerous aspects of human life, especially in water resources planning and management. However, not all areas have rainfall recording stations using manual rain and gauges or automatic rainfall recorders, so rainfall records are rarely complete; this is also the case in Kapuas Hulu District, West Kalimantan Province.This research article presents the results of TRMM satellite rainfall data research in Kapuas Hulu District, with validated rainfall data, 1-day maximum rainfall data, and rainfall amount data. Validation stages are carried out by calibrating, verifying, and correcting rainfall data. As a comparison station (dependent variable) is the BMKG Pangsuma observation station, KPH-06 Nanga Kantuk, KPH-08 Ng. Silat, KPH-09 Jongkong, KPH-13 Tepuai in 1998-2019.The results of the analysis show that the best correlation value on the amount of rainfall data and 1-day maximum rainfall data obtained from Grid 30 TRMM of 0.83 and 0.82 with the observation station is BMKG Pangsuma Station, and then the equation obtained from the analysis results on the grid is used as an equation for correction. The data correction equation for the amount of rainfall is Y = 1.1578 X - 98.5547, and the 1-day maximum rainfall data correction equation is Y = 1.2036 X - 28.4197.
{"title":"VALIDATION OF TROPICAL RAINFALL MEASURING MISSION (TRMM) RAINFALL DATA FOR THE KAPUAS HULU DISTRICT AREA","authors":"Charles Gonzaga Tangkadas, S. Soeryamassoeka, Azwa Nirmala","doi":"10.26418/jts.v23i3.66513","DOIUrl":"https://doi.org/10.26418/jts.v23i3.66513","url":null,"abstract":"Rainfall is a critical element in the hydrological cycle. Therefore, accurate rainfall inputs are essential for reliable hydrological predictions in various water resource analyses. Many areas in the tropics depend on rainfall for multiple needs because rainfall has an essential influence on numerous aspects of human life, especially in water resources planning and management. However, not all areas have rainfall recording stations using manual rain and gauges or automatic rainfall recorders, so rainfall records are rarely complete; this is also the case in Kapuas Hulu District, West Kalimantan Province.This research article presents the results of TRMM satellite rainfall data research in Kapuas Hulu District, with validated rainfall data, 1-day maximum rainfall data, and rainfall amount data. Validation stages are carried out by calibrating, verifying, and correcting rainfall data. As a comparison station (dependent variable) is the BMKG Pangsuma observation station, KPH-06 Nanga Kantuk, KPH-08 Ng. Silat, KPH-09 Jongkong, KPH-13 Tepuai in 1998-2019.The results of the analysis show that the best correlation value on the amount of rainfall data and 1-day maximum rainfall data obtained from Grid 30 TRMM of 0.83 and 0.82 with the observation station is BMKG Pangsuma Station, and then the equation obtained from the analysis results on the grid is used as an equation for correction. The data correction equation for the amount of rainfall is Y = 1.1578 X - 98.5547, and the 1-day maximum rainfall data correction equation is Y = 1.2036 X - 28.4197.","PeriodicalId":52838,"journal":{"name":"Jurnal Teknik Sipil","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75845562","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 : 2023-08-27DOI: 10.26418/jts.v23i3.64855
Qolby Istiqomah, R. Irsan, Agum Satria
Air pollution can come from natural activities and human activities. One type of pollutant that needs attention is air pollution caused by exhaust fumes from engine combustion and air pollution due to machines such as steam power plants. PT. X is a company engaged in the industrial sector that processes bauxite into alumina. PT. X is an example of an industry that uses coal and diesel-fired steam power plants for its factory operations. As a result of the fuel combustion process produces several exhaust gases, one of which is nitrogen dioxide, into the surrounding air. If the flue gas from the chimney exceeds the quality standard, it can pose a risk to workers and the surrounding community. Therefore, research was conducted on analyzing the distribution of NO2 pollutants from chimneys at PT. X. The data used are primary and secondary. The primary data is in the form of NO2 concentration in ambient air, while the secondary data is in wind direction and speed in one year. The known secondary data is then processed using the wrplot application so that the results are obtained in the form of the distribution of NO2 pollutants in the air. Based on the results of wind speed and direction data processing in Figure 1, it can be seen that the dominant wind direction blows from east to west with 699 occurrences, with wind speeds mostly occurring between 3.00 – 4.00 MS. Based on the wind rose above, there is no wind with a speed of less than 0.5 m/s or a calm wind. The minimum speed occurs in the range 1.00 – 2.00 m/s and the maximum speed occurs in the range ≥ 7.00 m/s.
{"title":"ANALYSIS OF DISTRIBUTION OF NO2 POLLUTANTS IN PT. X SANGGAU REGENCY, WEST KALIMANTAN","authors":"Qolby Istiqomah, R. Irsan, Agum Satria","doi":"10.26418/jts.v23i3.64855","DOIUrl":"https://doi.org/10.26418/jts.v23i3.64855","url":null,"abstract":"Air pollution can come from natural activities and human activities. One type of pollutant that needs attention is air pollution caused by exhaust fumes from engine combustion and air pollution due to machines such as steam power plants. PT. X is a company engaged in the industrial sector that processes bauxite into alumina. PT. X is an example of an industry that uses coal and diesel-fired steam power plants for its factory operations. As a result of the fuel combustion process produces several exhaust gases, one of which is nitrogen dioxide, into the surrounding air. If the flue gas from the chimney exceeds the quality standard, it can pose a risk to workers and the surrounding community. Therefore, research was conducted on analyzing the distribution of NO2 pollutants from chimneys at PT. X. The data used are primary and secondary. The primary data is in the form of NO2 concentration in ambient air, while the secondary data is in wind direction and speed in one year. The known secondary data is then processed using the wrplot application so that the results are obtained in the form of the distribution of NO2 pollutants in the air. Based on the results of wind speed and direction data processing in Figure 1, it can be seen that the dominant wind direction blows from east to west with 699 occurrences, with wind speeds mostly occurring between 3.00 – 4.00 MS. Based on the wind rose above, there is no wind with a speed of less than 0.5 m/s or a calm wind. The minimum speed occurs in the range 1.00 – 2.00 m/s and the maximum speed occurs in the range ≥ 7.00 m/s.","PeriodicalId":52838,"journal":{"name":"Jurnal Teknik Sipil","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79749339","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}
Hospitals are essential in providing health services and must withstand the forces that may occur, even due to an earthquake. RSUD Soedarso is a hospital in Pontianak City that has been around for a long time. However, because it is already quite old, various problems must be addressed. The step taken by the government is to build a new building, namely the Medical Centre and Inpatient Building.The purpose of writing this final project is to evaluate the performance of the earthquake-resistant structure of the Soedarso Hospital Medical Centre building using the pushover analysis method. This method analyses the inelastic behaviour of the system due to the earthquake, where the result is a curve of the relationship between the shear force and the displacement of the roof that occurs. The guidelines for pushover rules used are based on the provisions of ATC-40 and FEMA 356. Further research was carried out on the dilation between the Medical Centre Building and the IRNA Building.The results are that both buildings are still in elastic condition when the performance point is reached. Based on ATC-40 and FEMA 356, the building is classified as in the Immediate Occupancy (IO) performance level, regarding drift ratio and from plastic hinges that occur in column and beam elements. Then the dilatation that arises due to pushover is smaller than the design dilation of 150 mm. Both buildings are protected from potential collisions, which is a relief.
{"title":"CALCULATION OF EARTHQUAKE RESISTANT STRUCTURE OF MEDICAL CENTER BUILDING RUMAH SAKIT UMUM DAERAH (RSUD) SOEDARSO PONTIANAK USING PUSHOVER ANALYSIS","authors":"Tansetiadi Sutiono, Gatot Setya Budi, Herwani Herwani","doi":"10.26418/jts.v23i3.67754","DOIUrl":"https://doi.org/10.26418/jts.v23i3.67754","url":null,"abstract":"Hospitals are essential in providing health services and must withstand the forces that may occur, even due to an earthquake. RSUD Soedarso is a hospital in Pontianak City that has been around for a long time. However, because it is already quite old, various problems must be addressed. The step taken by the government is to build a new building, namely the Medical Centre and Inpatient Building.The purpose of writing this final project is to evaluate the performance of the earthquake-resistant structure of the Soedarso Hospital Medical Centre building using the pushover analysis method. This method analyses the inelastic behaviour of the system due to the earthquake, where the result is a curve of the relationship between the shear force and the displacement of the roof that occurs. The guidelines for pushover rules used are based on the provisions of ATC-40 and FEMA 356. Further research was carried out on the dilation between the Medical Centre Building and the IRNA Building.The results are that both buildings are still in elastic condition when the performance point is reached. Based on ATC-40 and FEMA 356, the building is classified as in the Immediate Occupancy (IO) performance level, regarding drift ratio and from plastic hinges that occur in column and beam elements. Then the dilatation that arises due to pushover is smaller than the design dilation of 150 mm. Both buildings are protected from potential collisions, which is a relief.","PeriodicalId":52838,"journal":{"name":"Jurnal Teknik Sipil","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86731073","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 : 2023-08-27DOI: 10.26418/jts.v23i3.65918
Idham Hafiz, Vivi Bachtiar, R. Rustamaji, Eka Priadi, R. Rustamaji
In road construction planning, soil plays a primary role that will be examined. In geotechnical engineering, soil stabilization is one of the engineering sciences and efforts to enhance soil characteristics. Unbeknownst to many, ideas and concepts are generated to create new innovative materials that can replace or supplement existing materials. Based on this, the concept of utilizing spent bleaching earth (SBE) waste material emerged. With the advancement of engineering knowledge, particularly in the field of geotechnical engineering, soil stabilization is employed as an effort to improve soil characteristics. By utilizing SBE and cement as materials for soil stabilization in dams, the changes in the physical properties of the embankment soil before and after stabilization are examined. The physical property results are obtained through testing. Each obtained result is compared against the lower road foundation layer specifications based on the General Specifications for Road and Bridge Construction Works 2018 (Revision 2). Based on the testing and analysis, the plasticity index value with an optimum content of 10% and a curing time of 14 days, which is 7.576%, has met the requirements for constructing Class B roads' lower road foundation layer.
{"title":"STUDY ON THE EFFECTS OF SOIL-CEMENT STABILIZATION IN THE LOWER ROAD FOUNDATION LAYER USING SPENT BLEACHING EARTH STABILIZER IN TERMS OF SOIL PHYSICAL PROPERTIES","authors":"Idham Hafiz, Vivi Bachtiar, R. Rustamaji, Eka Priadi, R. Rustamaji","doi":"10.26418/jts.v23i3.65918","DOIUrl":"https://doi.org/10.26418/jts.v23i3.65918","url":null,"abstract":"In road construction planning, soil plays a primary role that will be examined. In geotechnical engineering, soil stabilization is one of the engineering sciences and efforts to enhance soil characteristics. Unbeknownst to many, ideas and concepts are generated to create new innovative materials that can replace or supplement existing materials. Based on this, the concept of utilizing spent bleaching earth (SBE) waste material emerged. With the advancement of engineering knowledge, particularly in the field of geotechnical engineering, soil stabilization is employed as an effort to improve soil characteristics. By utilizing SBE and cement as materials for soil stabilization in dams, the changes in the physical properties of the embankment soil before and after stabilization are examined. The physical property results are obtained through testing. Each obtained result is compared against the lower road foundation layer specifications based on the General Specifications for Road and Bridge Construction Works 2018 (Revision 2). Based on the testing and analysis, the plasticity index value with an optimum content of 10% and a curing time of 14 days, which is 7.576%, has met the requirements for constructing Class B roads' lower road foundation layer.","PeriodicalId":52838,"journal":{"name":"Jurnal Teknik Sipil","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85552710","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 : 2023-08-27DOI: 10.26418/jts.v23i3.64107
Ponsianus Kameistu, Eka Priadi, S. Widodo
Several testing methods can be carried out in testing the bearing capacity of the soil, such as soil test testing, hand penetrometer, dynamic cone penetrometer, plate bearing test, and others. In addition to direct testing in the field, testing can also be carried out in the laboratory. The purpose of this study is to determine how much the correlation results of the 4 (four) test methods are to provide efficient results in data collection in the field. The location of research was carried out in Sekadau Regency, Sekadau Hilir District. The Sports Stadium Complex Development Plan has carried out as many as 20 (twenty) points for each test. Each test was carried out closely and reviewed at a depth of one meter, with soil characteristics at The test location being sandy soil with fine grain. The correlation test was carried out with 4 (four) test methods using the regression line method. This study shows a solid correlation between CBR Dynamic Cone and Hand Penetrometer (r = 0.893). The strong correlation between Hand Penetrometer and the qc Soil test (r = 0.669). Good modulus subgrade (Plate Bearing Test) correlation with CBR Dynamic Cone Penetrometer (r = 0.417). Very weak correlation of Soil test qc with subgrade modulus (Plate Bearing Test (r = 0.226).
{"title":"CORRELATION OF BASED SOIL CARRYING CAPACITY RESULTS OF CONE PENETRATION TEST, DYNAMIC CONE PENETROMETER (DCP), PLATE BEARING TEST, AND HAND PENETROMETER","authors":"Ponsianus Kameistu, Eka Priadi, S. Widodo","doi":"10.26418/jts.v23i3.64107","DOIUrl":"https://doi.org/10.26418/jts.v23i3.64107","url":null,"abstract":"Several testing methods can be carried out in testing the bearing capacity of the soil, such as soil test testing, hand penetrometer, dynamic cone penetrometer, plate bearing test, and others. In addition to direct testing in the field, testing can also be carried out in the laboratory. The purpose of this study is to determine how much the correlation results of the 4 (four) test methods are to provide efficient results in data collection in the field. The location of research was carried out in Sekadau Regency, Sekadau Hilir District. The Sports Stadium Complex Development Plan has carried out as many as 20 (twenty) points for each test. Each test was carried out closely and reviewed at a depth of one meter, with soil characteristics at The test location being sandy soil with fine grain. The correlation test was carried out with 4 (four) test methods using the regression line method. This study shows a solid correlation between CBR Dynamic Cone and Hand Penetrometer (r = 0.893). The strong correlation between Hand Penetrometer and the qc Soil test (r = 0.669). Good modulus subgrade (Plate Bearing Test) correlation with CBR Dynamic Cone Penetrometer (r = 0.417). Very weak correlation of Soil test qc with subgrade modulus (Plate Bearing Test (r = 0.226).","PeriodicalId":52838,"journal":{"name":"Jurnal Teknik Sipil","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83682154","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 : 2023-08-27DOI: 10.26418/jts.v23i3.67309
Eka Eka, Septami Setiawati, Berlian Sitorus
PT Indonesia Chemical Alumina (ICA) is the first Chemical Grade Alumina (CGA) producer company in Indonesia which produces tailings, namely red mud, with ± 30% water content and stored in class III landfill facilities according to PP 101 of 2014 article 146. The stockpile has been mixed with tailing from thermal power station (PLTU) of PT ICA which are fly ash and bottom ash (FABA). This study aimed to determine the area and volume of the pile, analyze the characteristics of the tailings, and identify the potential elemental counts in PT ICA's tailings. The method used is mapping using the DJI Mavic 3 Pro, composite sampling, cone and quartering, and characterization using XRF. The results obtained from drone data were converted to determine the amount of potential in each element. The area and volume of tailing pile are 5.64 hectares and 1,400,459.96 tons. The results of the XRF analysis show that the highest elements and oxide compounds are Fe and Fe2O3 at 69.74% and 60.26%, respectively.
{"title":"ELEMENTS RESOURCE POTENTIAL IN TAILINGS AT THE TAILING STORAGE FACILITY OF PT. INDONESIA CHEMICAL ALUMINA (PT. ICA), TAYAN DISTRICT, SANGGAU REGENCY, WEST KALIMANTAN","authors":"Eka Eka, Septami Setiawati, Berlian Sitorus","doi":"10.26418/jts.v23i3.67309","DOIUrl":"https://doi.org/10.26418/jts.v23i3.67309","url":null,"abstract":"PT Indonesia Chemical Alumina (ICA) is the first Chemical Grade Alumina (CGA) producer company in Indonesia which produces tailings, namely red mud, with ± 30% water content and stored in class III landfill facilities according to PP 101 of 2014 article 146. The stockpile has been mixed with tailing from thermal power station (PLTU) of PT ICA which are fly ash and bottom ash (FABA). This study aimed to determine the area and volume of the pile, analyze the characteristics of the tailings, and identify the potential elemental counts in PT ICA's tailings. The method used is mapping using the DJI Mavic 3 Pro, composite sampling, cone and quartering, and characterization using XRF. The results obtained from drone data were converted to determine the amount of potential in each element. The area and volume of tailing pile are 5.64 hectares and 1,400,459.96 tons. The results of the XRF analysis show that the highest elements and oxide compounds are Fe and Fe2O3 at 69.74% and 60.26%, respectively.","PeriodicalId":52838,"journal":{"name":"Jurnal Teknik Sipil","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83771413","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 : 2023-08-27DOI: 10.26418/jts.v23i3.65506
Naimatul Fikriyah, H. Azwansyah, E. Mukti
There are various reasons and considerations underlying travellers in choosing a mode of transportation. The diversity of transportation mode is an essential factor for transportation business actors in competing to provide a choice of transportation modes that are very popular or no longer in demand for use by travellers traveling from one city to another. Currently, the most frequently used mode of transportation on the Pontianak - Ketapang city route or vice versa is airplane transportation or travel, and this is because both modes of vehicle arrive in the city of Ketapang without transiting in other towns or regions. This study aims to determine the factors that influence the choice of transportation mode and obtain the probability of airplane and travel passengers.This research is conducted with a stated preference method by distributing questionnaires to people traveling from the Pontianak - Ketapang city route using airplanes and travel modes. For the survey, data is collected using a questionnaire distributed to 420 respondents through Google form using four attributes, namely cost, time, headway, and service. Based on the analysis results for calculating transportation mode choice with the stated preference method, a utility model is obtained as follows: U(PT-TR) = 0.291 + -2.883E-6.∆x1 + -0.226.∆x2 + 0.218.∆x3 + 0.023.∆x4 with an airplane probability of 55.92%, while the travel probability is 44.08%. The most sensitive attribute affecting the choice of transportation mode is the time attribute. It is because changes in travel time will result in a relatively greater probability of mode choice when compared to changes in cost, headway, and service attributes.
{"title":"MODEL OF MODE SELECTION ANALYSIS AT PONTIANAK – KETAPANG ROUTE WITH STATED PREFERENCE METHOD","authors":"Naimatul Fikriyah, H. Azwansyah, E. Mukti","doi":"10.26418/jts.v23i3.65506","DOIUrl":"https://doi.org/10.26418/jts.v23i3.65506","url":null,"abstract":"There are various reasons and considerations underlying travellers in choosing a mode of transportation. The diversity of transportation mode is an essential factor for transportation business actors in competing to provide a choice of transportation modes that are very popular or no longer in demand for use by travellers traveling from one city to another. Currently, the most frequently used mode of transportation on the Pontianak - Ketapang city route or vice versa is airplane transportation or travel, and this is because both modes of vehicle arrive in the city of Ketapang without transiting in other towns or regions. This study aims to determine the factors that influence the choice of transportation mode and obtain the probability of airplane and travel passengers.This research is conducted with a stated preference method by distributing questionnaires to people traveling from the Pontianak - Ketapang city route using airplanes and travel modes. For the survey, data is collected using a questionnaire distributed to 420 respondents through Google form using four attributes, namely cost, time, headway, and service. Based on the analysis results for calculating transportation mode choice with the stated preference method, a utility model is obtained as follows: U(PT-TR) = 0.291 + -2.883E-6.∆x1 + -0.226.∆x2 + 0.218.∆x3 + 0.023.∆x4 with an airplane probability of 55.92%, while the travel probability is 44.08%. The most sensitive attribute affecting the choice of transportation mode is the time attribute. It is because changes in travel time will result in a relatively greater probability of mode choice when compared to changes in cost, headway, and service attributes. ","PeriodicalId":52838,"journal":{"name":"Jurnal Teknik Sipil","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80041202","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 : 2023-08-27DOI: 10.26418/jts.v23i3.64474
Ishak Hasan, Elvira Elvira, Eka Priadi, N. Nurhayati, S. Widodo
The implementation of infrastructure activities, whether in the form of building construction or road construction, always requires and involves a large number of workers, construction activity organizers, especially service providers or contractors who have a workforce of various levels directly related to the field, especially workers in the area are very vulnerable to occupational safety and Health, especially in road paving work in cities, where asphalted roads are roads with high and dense vehicle traffic. For this reason, the authors conducted an Analysis of the Effect of Occupational Safety and Health on Road Paving Workers in Pontianak City.All data must first be tested for data validity and reliability using the statistical program SPSS Version 26 to find out the analysis results. The data processing method uses quantitative methods. Then the Author will carry out a regression analysis so that it can be seen to what extent the influence of hazard and risk identification safety at work on occupational risk control, occupational safety, and health programs on road paving work in the city of Pontianak, as well as to find out the dominant factors that determine the value of occupational risk control.
基础设施活动的实施，无论是以建筑施工还是道路施工的形式，总是需要和涉及大量工人，建筑活动的组织者，特别是拥有与该领域直接相关的各级劳动力的服务提供者或承包商，特别是该地区的工人非常容易受到职业安全与健康的影响，特别是在城市的道路铺设工作中。沥青路面是指车辆流量大、密度大的道路。为此，作者对Pontianak市道路铺设工人的职业安全与健康影响进行了分析。所有数据必须首先使用统计程序SPSS Version 26进行数据有效性和可靠性测试，以找出分析结果。数据处理方法采用定量方法。然后，作者将进行回归分析，以了解危害和风险识别安全对Pontianak市铺路工作的职业风险控制，职业安全与健康计划的影响程度，并找出决定职业风险控制价值的主导因素。
{"title":"ANALYSIS OF THE EFFECT OF OCCUPATIONAL SAFETY AND HEALTH (OSH) ON ROAD ASPHALT WORKERS IN PONTIANAK CITY","authors":"Ishak Hasan, Elvira Elvira, Eka Priadi, N. Nurhayati, S. Widodo","doi":"10.26418/jts.v23i3.64474","DOIUrl":"https://doi.org/10.26418/jts.v23i3.64474","url":null,"abstract":"The implementation of infrastructure activities, whether in the form of building construction or road construction, always requires and involves a large number of workers, construction activity organizers, especially service providers or contractors who have a workforce of various levels directly related to the field, especially workers in the area are very vulnerable to occupational safety and Health, especially in road paving work in cities, where asphalted roads are roads with high and dense vehicle traffic. For this reason, the authors conducted an Analysis of the Effect of Occupational Safety and Health on Road Paving Workers in Pontianak City.All data must first be tested for data validity and reliability using the statistical program SPSS Version 26 to find out the analysis results. The data processing method uses quantitative methods. Then the Author will carry out a regression analysis so that it can be seen to what extent the influence of hazard and risk identification safety at work on occupational risk control, occupational safety, and health programs on road paving work in the city of Pontianak, as well as to find out the dominant factors that determine the value of occupational risk control. ","PeriodicalId":52838,"journal":{"name":"Jurnal Teknik Sipil","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86383625","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：