首页 > 最新文献

Archives of Mining Sciences最新文献

英文 中文
Analysis of Mercury Content Inside Mining Waste Dump – Case Study in the Upper Silesia in Poland 矿山排土场汞含量分析——以波兰上西里西亚为例
IF 1.2 4区 工程技术 Q3 MINING & MINERAL PROCESSING Pub Date : 2023-07-20 DOI: 10.24425/ams.2022.140704
{"title":"Analysis of Mercury Content Inside Mining Waste Dump – Case Study in the Upper Silesia in Poland","authors":"","doi":"10.24425/ams.2022.140704","DOIUrl":"https://doi.org/10.24425/ams.2022.140704","url":null,"abstract":"","PeriodicalId":55468,"journal":{"name":"Archives of Mining Sciences","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48921419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of the Possibility of Using Granulated Carbonated Volatile Fly Ash from Fluidized Beds (G-CVFA) in Underground Mining Techniques 流化床颗粒化碳酸化挥发性粉煤灰(G-CVFA)在地下采矿技术中应用的可能性评价
IF 1.2 4区 工程技术 Q3 MINING & MINERAL PROCESSING Pub Date : 2023-07-20 DOI: 10.24425/ams.2020.134144
Jadwiga Proksa, M. Łączny, Z. Bzowski
The application of fluidized fly ash in underground mining excavations is limited due to its significant content of free calcium and calcium sulfate. In order to increase the amount of utilized fly ash from fluidized beds, it should be converted to a product with properties that meet the requirements for mining applications. This research presents the results of an attempt to adapt fluidized fly ashes for use in underground mining techniques, by means of carbonation and granulation. Carbonation was performed with the use of technical carbon dioxide and resulted in the reduction of free calcium content to a value below 1%. Granulation on the other hand, resulted in obtaining a product with good physical and mechanical parameters. The performed mineralogical and chemical studies indicate that trace amounts of “binding” phases, such as basanite and/or gypsum are present in the carbonized ash. The addition of water, during the granulation of carbonized fluidized fly ash, resulted in changes in the mineral phases leading to the formation of ettringite and gypsum as well as the recrystallization of the amorphous substance. It was confirmed that the carbonization and granulation of flying fluidized ashes positively affects the possibility of using these ashes in underground mining excavations.
流态化粉煤灰中游离钙和硫酸钙含量高,限制了其在地下矿山开挖中的应用。为了提高流化床飞灰的利用率,应将其转化为具有满足采矿应用要求的性能的产品。本研究提出了一项尝试的结果,以适应流态化粉煤灰用于地下采矿技术,通过碳酸化和造粒。使用技术二氧化碳进行碳化,使游离钙含量降低到1%以下。另一方面,造粒可以获得具有良好物理和机械参数的产品。所进行的矿物学和化学研究表明,在碳化灰中存在微量的“结合”相,如玄武岩和/或石膏。在碳化流化粉煤灰造粒过程中,水的加入使矿物相发生变化,形成钙矾石和石膏,并使无定形物质重结晶。研究结果表明,飞流化灰的炭化和造粒对飞流化灰在地下开采中应用的可能性有积极的影响。
{"title":"Evaluation of the Possibility of Using Granulated Carbonated Volatile Fly Ash from Fluidized Beds (G-CVFA) in Underground Mining Techniques","authors":"Jadwiga Proksa, M. Łączny, Z. Bzowski","doi":"10.24425/ams.2020.134144","DOIUrl":"https://doi.org/10.24425/ams.2020.134144","url":null,"abstract":"The application of fluidized fly ash in underground mining excavations is limited due to its significant content of free calcium and calcium sulfate. In order to increase the amount of utilized fly ash from fluidized beds, it should be converted to a product with properties that meet the requirements for mining applications. This research presents the results of an attempt to adapt fluidized fly ashes for use in underground mining techniques, by means of carbonation and granulation. Carbonation was performed with the use of technical carbon dioxide and resulted in the reduction of free calcium content to a value below 1%. Granulation on the other hand, resulted in obtaining a product with good physical and mechanical parameters. The performed mineralogical and chemical studies indicate that trace amounts of “binding” phases, such as basanite and/or gypsum are present in the carbonized ash. The addition of water, during the granulation of carbonized fluidized fly ash, resulted in changes in the mineral phases leading to the formation of ettringite and gypsum as well as the recrystallization of the amorphous substance. It was confirmed that the carbonization and granulation of flying fluidized ashes positively affects the possibility of using these ashes in underground mining excavations.","PeriodicalId":55468,"journal":{"name":"Archives of Mining Sciences","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49032039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Strain and Force Measurement in Wire Guide 钢丝导轨中的应变和力测量
IF 1.2 4区 工程技术 Q3 MINING & MINERAL PROCESSING Pub Date : 2023-07-20 DOI: 10.24425/122450
J. Juraszek
The paper presents a new method for measuring the strain and load of wire ropes guide using fiber optic sensors with Bragg gratings. Its principle consists in simultaneous fiber optic measurement of longitudinal strain of the rope and transverse strain of the bolt fixing the rope. The tensometric force transducers which have been used so far were only able to determine the load in the head securing the rope through an indirect measurement using a special strain insert. They required calibration, compensation of temperature changes, as well as periodic checking and calibration. The head fastening the rope required significant design changes. Measurement based on fiber optic sensors does not have these drawbacks and is characterized by a much higher accuracy and safety of measurements, because the working medium is light. The fastening head does not change. The measurement of the rope load may be based on the change of strain value or indirectly by means of measuring the deflection of the bolt fixing the rope holder. The proposed solution consists in placing the optical fiber with Bragg grating inside the bolt. It enables continuous measurements with a frequency of 2 kHz. A special test bench was built at the Research and Supervisory Centre of Underground Mining. Testing on guide ropes was carried out in a mining hoist in the Piast mine.
本文提出了一种利用布拉格光栅光纤传感器测量钢丝绳导轨应变和载荷的新方法。其原理是用光纤同时测量绳索的纵向应变和固定绳索的螺栓的横向应变。到目前为止,使用的张力传感器只能通过使用特殊应变插入件的间接测量来确定固定绳索的头部的载荷。它们需要校准、温度变化补偿以及定期检查和校准。固定绳索的头部需要进行重大的设计更改。基于光纤传感器的测量没有这些缺点,并且由于工作介质是光,因此测量的精度和安全性高得多。紧固头不变。绳索载荷的测量可以基于应变值的变化,也可以通过测量固定绳索支架的螺栓的挠度来间接测量。所提出的解决方案包括在螺栓内放置带有布拉格光栅的光纤。它能够以2kHz的频率进行连续测量。在地下采矿研究与监督中心建造了一个特殊的试验台。在Piast矿的一台采矿提升机中对导绳进行了测试。
{"title":"Strain and Force Measurement in Wire Guide","authors":"J. Juraszek","doi":"10.24425/122450","DOIUrl":"https://doi.org/10.24425/122450","url":null,"abstract":"The paper presents a new method for measuring the strain and load of wire ropes guide using fiber optic sensors with Bragg gratings. Its principle consists in simultaneous fiber optic measurement of longitudinal strain of the rope and transverse strain of the bolt fixing the rope. The tensometric force transducers which have been used so far were only able to determine the load in the head securing the rope through an indirect measurement using a special strain insert. They required calibration, compensation of temperature changes, as well as periodic checking and calibration. The head fastening the rope required significant design changes. Measurement based on fiber optic sensors does not have these drawbacks and is characterized by a much higher accuracy and safety of measurements, because the working medium is light. The fastening head does not change. The measurement of the rope load may be based on the change of strain value or indirectly by means of measuring the deflection of the bolt fixing the rope holder. The proposed solution consists in placing the optical fiber with Bragg grating inside the bolt. It enables continuous measurements with a frequency of 2 kHz. A special test bench was built at the Research and Supervisory Centre of Underground Mining. Testing on guide ropes was carried out in a mining hoist in the Piast mine.","PeriodicalId":55468,"journal":{"name":"Archives of Mining Sciences","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48544553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Studies of Masonry Structure Technical Wear in Mining Areas 矿区砌体结构技术磨损研究
IF 1.2 4区 工程技术 Q3 MINING & MINERAL PROCESSING Pub Date : 2023-07-20 DOI: 10.24425/ams.2019.128680
I. BRYT-NITARSKA, Badania Zużycia Technicznego, Konstrukcji Murowanych, NA Terenach
The paper presents the results of assessment studies of the time course for technical wear in masonry buildings located in the area of mining-induced ground deformations. By using fuzzy inference system (FIS) and the “if-then” rule, corresponding language labels describing actual damage recorded in structure components were translated into scalar outputs describing the degree of damage to the building. Adopting this approach made it possible to separate damage resulting from additional effects coming from mining-induced ground deformations and the natural wear and tear of masonry structure. By using statistical analysis an exponential function for the condition of building damage and the function of natural wear and tear were developed. Both phenomena were subject to studies as a function of time regarding the technical age of building structure. The results obtained were used to develop a model for the course of technical wear of traditionally constructed buildings used within mining areas. In the course of natural wear and tear buildings located in mining areas are additionally exposed to forced ground deformations. The increase of internal forces in structure components induced by those effects results in creating an additional stress factor and damage. The hairline cracks and cracks of building structure components take place when the intensity value of mining effects becomes higher than the component stress resistance and repeated effects result in the decrease of structure rigidity. The observations of building behaviour in mining areas show that the intensity of mining activity and the multiplicity of its effect play a substantial role in the course of technical wear of buildings. The studies show that the level of damage resulting from mining effects adds up to natural wear and tear of the building and impairs the global technical condition as compared to similar buildings used outside mining areas.
本文介绍了采动变形区砌体建筑技术磨损时间过程的评价研究结果。利用模糊推理系统(FIS)和“if-then”规则,将描述结构构件实际损伤的相应语言标签转换为描述建筑物损伤程度的标量输出。采用这种方法可以将开采引起的地面变形和砌体结构的自然磨损造成的额外影响分开。通过统计分析,建立了建筑物损伤状态的指数函数和自然磨损函数。这两种现象都是关于建筑结构技术时代的时间函数的研究对象。所得结果用于开发矿区传统建筑技术磨损过程的模型。在自然磨损过程中,矿区建筑物还面临着地面的强迫变形。这些作用引起结构构件内力的增加,产生了额外的应力因子和损伤。当采动效应强度值高于构件的抗应力强度值时,建筑结构构件就会出现发际裂缝和裂缝,反复作用导致结构刚度降低。对矿区建筑物行为的观察表明,采矿活动的强度及其影响的多样性在建筑物的技术磨损过程中起着重要作用。研究表明,与矿区外使用的类似建筑物相比,采矿效应造成的破坏程度加起来相当于建筑物的自然磨损,损害了整体技术状况。
{"title":"Studies of Masonry Structure Technical Wear in Mining Areas","authors":"I. BRYT-NITARSKA, Badania Zużycia Technicznego, Konstrukcji Murowanych, NA Terenach","doi":"10.24425/ams.2019.128680","DOIUrl":"https://doi.org/10.24425/ams.2019.128680","url":null,"abstract":"The paper presents the results of assessment studies of the time course for technical wear in masonry buildings located in the area of mining-induced ground deformations. By using fuzzy inference system (FIS) and the “if-then” rule, corresponding language labels describing actual damage recorded in structure components were translated into scalar outputs describing the degree of damage to the building. Adopting this approach made it possible to separate damage resulting from additional effects coming from mining-induced ground deformations and the natural wear and tear of masonry structure. By using statistical analysis an exponential function for the condition of building damage and the function of natural wear and tear were developed. Both phenomena were subject to studies as a function of time regarding the technical age of building structure. The results obtained were used to develop a model for the course of technical wear of traditionally constructed buildings used within mining areas. In the course of natural wear and tear buildings located in mining areas are additionally exposed to forced ground deformations. The increase of internal forces in structure components induced by those effects results in creating an additional stress factor and damage. The hairline cracks and cracks of building structure components take place when the intensity value of mining effects becomes higher than the component stress resistance and repeated effects result in the decrease of structure rigidity. The observations of building behaviour in mining areas show that the intensity of mining activity and the multiplicity of its effect play a substantial role in the course of technical wear of buildings. The studies show that the level of damage resulting from mining effects adds up to natural wear and tear of the building and impairs the global technical condition as compared to similar buildings used outside mining areas.","PeriodicalId":55468,"journal":{"name":"Archives of Mining Sciences","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43062416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of Rockburst Potential in Kimberlite Using Fruit Fly Optimization Algorithm and Generalized Regression Neural Networks 利用果蝇优化算法和广义回归神经网络评价金伯利岩岩爆潜力
IF 1.2 4区 工程技术 Q3 MINING & MINERAL PROCESSING Pub Date : 2023-07-20 DOI: 10.24425/AMS.2019.128683
Yuanyuan Pu, D. Apel, Y. Pourrahimian, Jie-Chao Chen
Rockburst is a common engineering geological hazard. In order to evaluate rockburst liability in kimberlite at an underground diamond mine, a method combining generalized regression neural networks (GRNN) and fruit fly optimization algorithm (FOA) is employed. Based on two fundamental premises of rockburst occurrence, depth, σθ, σc, σt, B1, B2, SCF, Wet are determined as indicators of rockburst, which are also input vectors of GRNN model. 132 groups of data obtained from rockburst cases from all over the world are chosen as training samples to train the GRNN model; FOA is used to seek the optimal parameter σ that generates the most accurate GRNN model. The trained GRNN model is adopted to evaluate burst liability in kimberlite pipes. The same eight rockburst indicators are acquired from lab tests, mine site and FEM model as test sample features. Evaluation results made by GRNN can be confirmed by a rockburst case at this mine. GRNN do not require any prior knowledge about the nature of the relationship between the input and output variables and avoid analyzing the mechanism of rockburst, which has a bright prospect for engineering rockburst potential evaluation.
岩爆是一种常见的工程地质灾害。采用广义回归神经网络(GRNN)和果蝇优化算法(FOA)相结合的方法,对某地下钻石矿金伯利岩岩的岩爆危险性进行了评价。基于岩爆发生的两个基本前提,确定深度σθ、σc、σt、B1、B2、SCF和Wet作为岩爆指标,这也是GRNN模型的输入向量。选取来自世界各地的132组岩爆案例数据作为训练样本,对GRNN模型进行训练;FOA用于寻找生成最准确GRNN模型的最优参数σ。采用经过训练的GRNN模型来评估金伯利岩管道的爆裂倾向。从室内试验、矿场和有限元模型中获得了相同的8个岩爆指标作为试样特征。GRNN的评价结果可以通过该矿的岩爆实例得到证实。GRNN不需要任何关于输入和输出变量之间关系性质的先验知识,也避免了对岩爆机理的分析,这在工程岩爆潜力评估方面具有广阔的前景。
{"title":"Evaluation of Rockburst Potential in Kimberlite Using Fruit Fly Optimization Algorithm and Generalized Regression Neural Networks","authors":"Yuanyuan Pu, D. Apel, Y. Pourrahimian, Jie-Chao Chen","doi":"10.24425/AMS.2019.128683","DOIUrl":"https://doi.org/10.24425/AMS.2019.128683","url":null,"abstract":"Rockburst is a common engineering geological hazard. In order to evaluate rockburst liability in kimberlite at an underground diamond mine, a method combining generalized regression neural networks (GRNN) and fruit fly optimization algorithm (FOA) is employed. Based on two fundamental premises of rockburst occurrence, depth, σθ, σc, σt, B1, B2, SCF, Wet are determined as indicators of rockburst, which are also input vectors of GRNN model. 132 groups of data obtained from rockburst cases from all over the world are chosen as training samples to train the GRNN model; FOA is used to seek the optimal parameter σ that generates the most accurate GRNN model. The trained GRNN model is adopted to evaluate burst liability in kimberlite pipes. The same eight rockburst indicators are acquired from lab tests, mine site and FEM model as test sample features. Evaluation results made by GRNN can be confirmed by a rockburst case at this mine. GRNN do not require any prior knowledge about the nature of the relationship between the input and output variables and avoid analyzing the mechanism of rockburst, which has a bright prospect for engineering rockburst potential evaluation.","PeriodicalId":55468,"journal":{"name":"Archives of Mining Sciences","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46698005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Impact of Geotechnical Barrier Modelled in the Vicinity of a Building Structures Located in Mining Area 矿区建筑构筑物附近岩土屏障的影响模拟
IF 1.2 4区 工程技术 Q3 MINING & MINERAL PROCESSING Pub Date : 2023-07-20 DOI: 10.24425/AMS.2018.124984
Rafał Misa, K. Tajduś, A. Sroka
The paper presents a new geotechnical solution indicating a possibility of effective building structures protection. The presented solutions enable minimization of negative effects of underground mining operations. Results of numerical modelling have been presented for an example of design of preventive ditches reducing the influence of mining operations on the ground surface. To minimize the mining damage or to reduce its reach it is reasonable to look for technical solutions, which would enable effective protection of building structures. So far authors concentrated primarily on the development of building structure protection methods to minimize the damage caused by the underground mining. The application of geotechnical methods, which could protect building structures against the mining damage, was not considered so far in scientific papers. It should be noticed that relatively few publications are directly related to those issues and there are no practical examples of effective geotechnical protection. This paper presents a geotechnical solution indicating a possibility of effective protection of building structures. The presented solutions enable minimization of negative effects of underground mining operations. Results of numerical modelling have been presented for an example of design of preventive ditches reducing the influence of mining operations on the ground surface. The calculations were carried out in the Abaqus software, based on the finite element method.
本文提出了一种新的岩土工程解决方案,表明了有效保护建筑结构的可能性。所提出的解决方案能够最大限度地减少地下采矿作业的负面影响。以减少采矿作业对地表影响的防护沟设计为例,给出了数值模拟结果。为了最大限度地减少采矿破坏或减少其影响范围,寻找能够有效保护建筑结构的技术解决方案是合理的。到目前为止,作者主要集中于开发建筑结构保护方法,以最大限度地减少地下采矿造成的破坏。到目前为止,科学论文还没有考虑岩土工程方法的应用,这种方法可以保护建筑结构免受采矿破坏。应该注意的是,与这些问题直接相关的出版物相对较少,也没有有效的岩土工程保护的实际例子。本文提出了一种岩土工程解决方案,表明了对建筑结构进行有效保护的可能性。所提出的解决方案能够最大限度地减少地下采矿作业的负面影响。以减少采矿作业对地表影响的防护沟设计为例,给出了数值模拟结果。基于有限元法,在Abaqus软件中进行了计算。
{"title":"Impact of Geotechnical Barrier Modelled in the Vicinity of a Building Structures Located in Mining Area","authors":"Rafał Misa, K. Tajduś, A. Sroka","doi":"10.24425/AMS.2018.124984","DOIUrl":"https://doi.org/10.24425/AMS.2018.124984","url":null,"abstract":"The paper presents a new geotechnical solution indicating a possibility of effective building structures protection. The presented solutions enable minimization of negative effects of underground mining operations. Results of numerical modelling have been presented for an example of design of preventive ditches reducing the influence of mining operations on the ground surface. To minimize the mining damage or to reduce its reach it is reasonable to look for technical solutions, which would enable effective protection of building structures. So far authors concentrated primarily on the development of building structure protection methods to minimize the damage caused by the underground mining. The application of geotechnical methods, which could protect building structures against the mining damage, was not considered so far in scientific papers. It should be noticed that relatively few publications are directly related to those issues and there are no practical examples of effective geotechnical protection. This paper presents a geotechnical solution indicating a possibility of effective protection of building structures. The presented solutions enable minimization of negative effects of underground mining operations. Results of numerical modelling have been presented for an example of design of preventive ditches reducing the influence of mining operations on the ground surface. The calculations were carried out in the Abaqus software, based on the finite element method.","PeriodicalId":55468,"journal":{"name":"Archives of Mining Sciences","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45141935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Case Study: Mechanism and Effect Analysis of Presplitting Blasting in Shallow Extra-Thick Coal Seam 实例研究:浅埋特厚煤层预裂爆破机理及效果分析
IF 1.2 4区 工程技术 Q3 MINING & MINERAL PROCESSING Pub Date : 2023-07-20 DOI: 10.24425/ams.2022.142406
Q. Sun, Cheng Shan, Zhongya Wu, Yunbo Wang
The caving effect of the top coal caving is crucial for efficient mining. using the yushuling coal mine, Xinjiang province, China, as a case study, the coal and rock physical and mechanical parameters, such as the compressive, tensile, and shear strength values and hardness of the top coal and roof rock, were determined. The analysis of the effect of different factors on the blasting presplitting process was numerically simulated, and the optimal parameters of blast drilling were identified. Three presplit boreholes were implemented: in the workface, the workface’s advance area, and the two roadway roofs in the workface’s advance area. The optimal blasting drilling parameters and charge structure were designed. The field test results in the mine under study indicated that the top coal recovery rate of the 110501 fully mechanised top coal caving face was improved twice (from 40 to more than 80%), and an effective blasting presplitting was achieved. The proposed blasting presplitting method has an important guiding significance for fully mechanised top coal caving mining in Xinjiang and similar mining areas.
顶煤冒落的冒落效果是保证高效开采的关键。以新疆榆树岭煤矿为例,测定了煤岩的物理力学参数,如顶煤和顶板的抗压、抗拉、抗剪强度值和硬度。对不同因素对爆破预裂过程的影响进行了数值模拟,确定了爆破钻孔的最佳参数。实施了三个预裂钻孔:在工作面、工作面推进区和工作面推进区域的两个巷道顶板。设计了最佳的爆破钻孔参数和装药结构。现场试验结果表明,110501综放工作面顶煤回采率提高了两倍(由40%提高到80%以上),实现了有效的爆破预裂。提出的爆破预裂方法对新疆及类似矿区的综放开采具有重要的指导意义。
{"title":"Case Study: Mechanism and Effect Analysis of Presplitting Blasting in Shallow Extra-Thick Coal Seam","authors":"Q. Sun, Cheng Shan, Zhongya Wu, Yunbo Wang","doi":"10.24425/ams.2022.142406","DOIUrl":"https://doi.org/10.24425/ams.2022.142406","url":null,"abstract":"The caving effect of the top coal caving is crucial for efficient mining. using the yushuling coal mine, Xinjiang province, China, as a case study, the coal and rock physical and mechanical parameters, such as the compressive, tensile, and shear strength values and hardness of the top coal and roof rock, were determined. The analysis of the effect of different factors on the blasting presplitting process was numerically simulated, and the optimal parameters of blast drilling were identified. Three presplit boreholes were implemented: in the workface, the workface’s advance area, and the two roadway roofs in the workface’s advance area. The optimal blasting drilling parameters and charge structure were designed. The field test results in the mine under study indicated that the top coal recovery rate of the 110501 fully mechanised top coal caving face was improved twice (from 40 to more than 80%), and an effective blasting presplitting was achieved. The proposed blasting presplitting method has an important guiding significance for fully mechanised top coal caving mining in Xinjiang and similar mining areas.","PeriodicalId":55468,"journal":{"name":"Archives of Mining Sciences","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45300928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Assessment of the Behaviour of Flysch Rock Mass During Tunnel Boring in the Primary Lining Using Indicators and Limit Values of Displacements and Deformations 用位移变形指标和极限值评价复理岩体在隧道掘进过程中的行为
IF 1.2 4区 工程技术 Q3 MINING & MINERAL PROCESSING Pub Date : 2023-07-20 DOI: 10.24425/ams.2022.141463
A. Tajduś, K. Tajduś
The article describes the behaviour of the flysch rock massif (Carpathian flysch) during the drilling of three tunnels in the preliminary lining. These tunnels were excavated in: “Naprawa”, “Laliki”, and “świnna Poręba”. the distance between these tunnels in a straight line was 50 km to 90 km. the results of the displacement of the contours of these tunnels and their convergence were analysed in detail. These values were compared with the indices used to assess the behaviour of the rock mass in the tunnel environment (zasławski index and Hoek index) and the adopted limit values of displacements and deformations. On this basis, a critical analysis of the selection of initial supports in the completed tunnels was made, showing errors at the design stage.
本文描述了喀尔巴阡复理岩体(喀尔巴阡复理岩体)在三条隧道初衬砌钻孔过程中的表现。这些隧道是在“Naprawa”,“Laliki”和“świnna Poręba”挖掘的。这些隧道之间的直线距离为50公里至90公里。详细分析了这些隧道的等值线位移和收敛的结果。将这些值与用于评估隧道环境中岩体行为的指标(zasławski指数和Hoek指数)以及采用的位移和变形极限值进行比较。在此基础上,对已完工隧道初始支护的选择进行了批判性分析,指出了设计阶段的错误。
{"title":"Assessment of the Behaviour of Flysch Rock Mass During Tunnel Boring in the Primary Lining Using Indicators and Limit Values of Displacements and Deformations","authors":"A. Tajduś, K. Tajduś","doi":"10.24425/ams.2022.141463","DOIUrl":"https://doi.org/10.24425/ams.2022.141463","url":null,"abstract":"The article describes the behaviour of the flysch rock massif (Carpathian flysch) during the drilling of three tunnels in the preliminary lining. These tunnels were excavated in: “Naprawa”, “Laliki”, and “świnna Poręba”. the distance between these tunnels in a straight line was 50 km to 90 km. the results of the displacement of the contours of these tunnels and their convergence were analysed in detail. These values were compared with the indices used to assess the behaviour of the rock mass in the tunnel environment (zasławski index and Hoek index) and the adopted limit values of displacements and deformations. On this basis, a critical analysis of the selection of initial supports in the completed tunnels was made, showing errors at the design stage.","PeriodicalId":55468,"journal":{"name":"Archives of Mining Sciences","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45767930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Classification and Decision-Making of Fully Mechanised Mining Technology Pattern for Thin Seam 薄煤层综采技术模式分类与决策
IF 1.2 4区 工程技术 Q3 MINING & MINERAL PROCESSING Pub Date : 2023-07-20 DOI: 10.24425/ams.2021.138592
Chen Wang, Yu Zhang, Yong Liu, Chen-shu Jiang, Mingqing Zhang
As one of the most important decision-making problems in fully mechanised mining, the corresponding mining technology pattern is the technical foundation of the working face. Characterised by complexity in a thin seam fully mechanised mining system, there are different kinds of patterns. in this paper, the classification strategy of the patterns in China is put forward. Moreover, the corresponding theoretical model using neural networks applied for patterns decision-making is designed. Based on the above, optimal selection of these patterns under given conditions is achieved. Lastly, the phased implementation plan for automatic mining pattern is designed. As a result of the industrial test, automatic mining for panel 22204 in guoerzhuang Coal Mine is realised.
作为综采开采中最重要的决策问题之一,相应的采矿技术模式是工作面的技术基础。薄煤层综采系统以其复杂性为特点,存在着多种多样的模式。在此基础上,提出了中国商业模式的分类策略。在此基础上,设计了应用神经网络进行模式决策的理论模型。在此基础上,实现了给定条件下这些模式的最优选择。最后,设计了自动挖掘模式的阶段性实施方案。通过工业试验,在果儿庄煤矿实现了22204盘板的自动化开采。
{"title":"Classification and Decision-Making of Fully Mechanised Mining Technology Pattern for Thin Seam","authors":"Chen Wang, Yu Zhang, Yong Liu, Chen-shu Jiang, Mingqing Zhang","doi":"10.24425/ams.2021.138592","DOIUrl":"https://doi.org/10.24425/ams.2021.138592","url":null,"abstract":"As one of the most important decision-making problems in fully mechanised mining, the corresponding mining technology pattern is the technical foundation of the working face. Characterised by complexity in a thin seam fully mechanised mining system, there are different kinds of patterns. in this paper, the classification strategy of the patterns in China is put forward. Moreover, the corresponding theoretical model using neural networks applied for patterns decision-making is designed. Based on the above, optimal selection of these patterns under given conditions is achieved. Lastly, the phased implementation plan for automatic mining pattern is designed. As a result of the industrial test, automatic mining for panel 22204 in guoerzhuang Coal Mine is realised.","PeriodicalId":55468,"journal":{"name":"Archives of Mining Sciences","volume":"1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68945708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Overburden Failure and Ground Pressure Behaviour of Longwall Top Coal Caving in Hard Multi-Layered Roof 坚硬多层顶板长壁综放工作面覆岩破坏与地压特性
IF 1.2 4区 工程技术 Q3 MINING & MINERAL PROCESSING Pub Date : 2023-07-20 DOI: 10.24425/AMS.2019.129370
Zhijie Zhu, Yunlong Wu, J. Han, Ying Chen
{"title":"Overburden Failure and Ground Pressure Behaviour of Longwall Top Coal Caving in Hard Multi-Layered Roof","authors":"Zhijie Zhu, Yunlong Wu, J. Han, Ying Chen","doi":"10.24425/AMS.2019.129370","DOIUrl":"https://doi.org/10.24425/AMS.2019.129370","url":null,"abstract":"","PeriodicalId":55468,"journal":{"name":"Archives of Mining Sciences","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41334886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
期刊
Archives of Mining Sciences
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1