Archives of Mining Sciences最新文献_第2页

Delineation of Groundwater Potential Zones for Sustainable Development and Planning using AHP and GIS Techniques in the Coal Mining Province of Mahan River Catchment Area 利用 AHP 和 GIS 技术为马汉河流域煤矿省的可持续发展和规划划定地下水潜力区

IF 1.2 4区工程技术

Archives of Mining Sciences Pub Date : 2024-04-04 DOI: 10.24425/ams.2024.149828

Rukaiya Kausher, Anand Kumar Sinha, Rambabu Singh

{"title":"Delineation of Groundwater Potential Zones for Sustainable Development and Planning using AHP and GIS Techniques in the Coal Mining Province of Mahan River Catchment Area","authors":"Rukaiya Kausher, Anand Kumar Sinha, Rambabu Singh","doi":"10.24425/ams.2024.149828","DOIUrl":"https://doi.org/10.24425/ams.2024.149828","url":null,"abstract":"The present research aims to address the drinking water crisis in the Mahan River catchment area resulting from the disruption of groundwater availability due to extensive coal mining. The study uses GIS-based Multi-Criteria Decision Analysis (MCDA) to map the groundwater potential of the area by analysing several factors that affect groundwater availability, including rainfall, water depth, geomorphology, geology, soil, land-cover/land-use, and topographic characteristics derived from DEM. The groundwater potential map created using the MCDA technique classified the area into low, moderate, and high groundwater potential zones. The map was validated and verified using water table depth and electrical conductivity values available in the region, indicating that it can be used to identify groundwater recharging sites. The study’s results show that about 30% of the area has high groundwater potential, and more than 45% of the area has moderate groundwater potential. The information derived from the study can be used for sustainable management and proper planning of groundwater resources in the Mahan River catchment area. Overall, the study presents a useful approach to address the groundwater depletion problem resulting from coal mining activities in the Mahan River catchment area.","PeriodicalId":55468,"journal":{"name":"Archives of Mining Sciences","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140741597","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

Methane Emission Measurements Along Underground Galleries of Coal Mine 煤矿井下巷道甲烷排放测量

IF 1.2 4区工程技术

Archives of Mining Sciences Pub Date : 2024-04-04 DOI: 10.24425/ams.2024.149830

Piotr Ostrogórski, P. Skotniczny

引用次数: 0

An Analysis of the Methane Explosion in the Area of the Return Shaft Bottom at Mine 煤矿回风井底区域甲烷爆炸分析

IF 1.2 4区工程技术

Archives of Mining Sciences Pub Date : 2024-04-04 DOI: 10.24425/ams.2024.149829

Stanisław Wasilewski, N. Szlązak, Paweł Jamróz

引用次数: 0

Study on Mechanical Response Characteristics of Anchor under Dynamic Disturbance 动态扰动下锚的机械响应特性研究

IF 1.2 4区工程技术

Archives of Mining Sciences Pub Date : 2024-04-04 DOI: 10.24425/ams.2024.149833

Zhiqiang Yin, Chao Wang, Zhiyu Chen, Youxun Cao, Tao Yang, Deren Chen, Dengke Wang

{"title":"Study on Mechanical Response Characteristics of Anchor under Dynamic Disturbance","authors":"Zhiqiang Yin, Chao Wang, Zhiyu Chen, Youxun Cao, Tao Yang, Deren Chen, Dengke Wang","doi":"10.24425/ams.2024.149833","DOIUrl":"https://doi.org/10.24425/ams.2024.149833","url":null,"abstract":"The roadway surrounding rock is often subjected to severe damage under dynamic loading at greater mining depths. To study the dynamic response of prestressed anchors, the damage characteristics of anchor solids with different prestresses and number of impacts under dynamic and static loads were investigated by improving the Hopkinson bar equipment. The effect of prestress on stress wave transmission was obtained, and the laws and reasons for axial force loss under static and dynamic loads were analyzed. The damage characteristics of anchor solids were determined experimentally. The results show that with an increase in prestress from 15 to 30 MPa, the peak value of the stress wave gradually increases and the decay rate gradually decreases. Shear damage occurred at the impact end of the specimen, combined tension and shear damage occurred at the free end, and fracture occurred in the middle. With an increase in the number of impacts, the damage to the anchor solid specimens gradually increased, and the prestressing force gradually decreased. After impact, the axial force of the various prestressed anchor solid specimens gradually increased; however, the anchor bar with a 17 MPa prestressing force had the slowest rate of axial force loss during impact, withstanding a greater number of impacts. In on-site applications, after three explosions, the displacement on both sides of the tunnel supported by 17 MPa prestressed anchor rods could be controlled within 0.3 m, with an average displacement of 206, 240, and 283 mm, respectively, increasing by 16.5% and 17.9%. This study, based on theoretical analysis and laboratory research combined with field application provides guidance for the anchor support of a dynamic loading tunnel.","PeriodicalId":55468,"journal":{"name":"Archives of Mining Sciences","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140741704","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

Rock Breaking Mechanism and Process Optimisation of Jet Cutting Basic Roof Rock under Submerged Jet Condition 浸没式喷射条件下喷射切割碱性屋顶岩的破岩机理与工艺优化

IF 1.2 4区工程技术

Archives of Mining Sciences Pub Date : 2024-04-04 DOI: 10.24425/ams.2024.149831

Lei Shi, Weiyong Lu, Dong Lv

{"title":"Rock Breaking Mechanism and Process Optimisation of Jet Cutting Basic Roof Rock under Submerged Jet Condition","authors":"Lei Shi, Weiyong Lu, Dong Lv","doi":"10.24425/ams.2024.149831","DOIUrl":"https://doi.org/10.24425/ams.2024.149831","url":null,"abstract":"The destruction of rock under the condition of a close submerged jet has become a hot topic of scientific research and engineering application in the past decade. With the unremitting efforts of a large number of experts and scholars around the world, gratifying progress has been made in the research of computational fluid dynamics (CFD) on the internal and external flow fields of the jet nozzle, the theoretical derivation of rock mechanics on the fracture initiation and propagation criteria of hydraulic fracturing, and the numerical simulation of jet erosion mechanism under the coupling of fluid and solid fields, however, for the rock mechanics hydraulic fracturing cutting engineering scale of non-oil drilling fracturing technology, the research on the fluid-solid coupling boundary conditions of fracturing fluid and hard dense rock under the flow state conditions of the submerged field inside and outside the borehole is not sufficient. In the calculation of the fluid-solid coupling boundary flow field under the non-submerged jet state, the control equation with Reynolds number between 2300-4000 shall be selected, while it belongs to the laminar flow state in the stage of hole sealing and pressurised fracturing. Therefore, Von-Mises equivalent plastic stress is selected in the mechanical model to calibrate the failure state of the rock-solid boundary, and the control equations of laminar flow and turbulent flow are selected to calibrate the fluid boundary. The mechanism of different stages of rock breaking by hydraulic fracturing jet can be further analysed in detail, and Comsol 6.0 multi-physical field simulation software is selected for verification. The research results will help deepen the understanding of rock breaking mechanism by jet and optimise the selection of parameters for field construction.","PeriodicalId":55468,"journal":{"name":"Archives of Mining Sciences","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140745994","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

Study of the Flow Field and Permeability Characteristics in the Goaf using the OpenPNM Package 使用 OpenPNM 软件包研究沼泽地的流场和渗透特性

IF 1.2 4区工程技术

Archives of Mining Sciences Pub Date : 2024-04-04 DOI: 10.24425/ams.2024.149826

Ke Gao, Qiwen Li, Lianzeng Shi, Aobo Yang, Zhipeng Qi

{"title":"Study of the Flow Field and Permeability Characteristics in the Goaf using the OpenPNM Package","authors":"Ke Gao, Qiwen Li, Lianzeng Shi, Aobo Yang, Zhipeng Qi","doi":"10.24425/ams.2024.149826","DOIUrl":"https://doi.org/10.24425/ams.2024.149826","url":null,"abstract":"The roof-caving step scale goaf behind the working face is sensitive to the region’s spontaneous combustion and gas concentration distribution, including many rock block cracks and holes. A severe deviation from the dynamics of fluids in porous media by representative element volume (REV), leading to the results of Computational Fluid Dynamics (CFD) simulation, has a significant error. A heterogeneous two-dimensional pore network model was established to simulate the goaf flow accurately. The network was first created using the simple cubic lattice in the OpenPNM package, and the spatial distribution of the “O-ring” bulking factor was mapped to the network. The bulking factor and Weibull distribution were combined to produce the size distribution of the pore and throat in the network. The constructed pore network model was performed with single-phase flow simulations. The study determined the pore structure parameters of the pore network through the goaf’s risked falling characteristics and described the flow field’s distribution characteristics in the goaf. The permeability coefficient increases as pore diameter, throat diameter, pore volume and throat volume increase and increases as throat length decreases. The correlation between throat volume and permeability coefficient is the highest, which indicates that the whole throat is the main control factor governing the air transport capacity in the goaf. These results may provide some guidelines for controlling thermodynamic disasters in the goaf.","PeriodicalId":55468,"journal":{"name":"Archives of Mining Sciences","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140742995","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

A Case Study of Gas-Condensate Reservoir Performance with Gas Cycling 天然气-凝析油储层性能与天然气循环案例研究

IF 1.2 4区工程技术

Archives of Mining Sciences Pub Date : 2024-04-04 DOI: 10.24425/ams.2024.149825

Oleksii Udovchenko, Jacek Blicharski, L. Matiishyn

{"title":"A Case Study of Gas-Condensate Reservoir Performance with Gas Cycling","authors":"Oleksii Udovchenko, Jacek Blicharski, L. Matiishyn","doi":"10.24425/ams.2024.149825","DOIUrl":"https://doi.org/10.24425/ams.2024.149825","url":null,"abstract":"The study examines the application of dry gas injection technology (cycling process) in different depletion stages (25%, 50%, 75%, 100% of the initial reservoir pressure, and the dew point pressure) at a gas condensate field. The injection took place with varying numbers of injection wells relative to production wells (4:1, 3:1, 2:1, 1:1, and 1:2). The study assessed the impact of dry gas injection periods, ranging from 1 to 3 years, on increasing the condensate recovery factor in a real gas condensate reservoir named X. A hydrodynamic model was used and calibrated with historical data, resulting in a comprehensive approach. Compared to the traditional depletion development method, this approach led to a significant 9% rise in the condensate recovery factor. The results indicate that injection has a positive effect on enhancing the recovery factor of condensate and gas when compared to primary development methods based on depletion. As a result, these findings facilitate a rapid evaluation of the possibility of introducing similar measures in gas-condensate reservoirs in the future for reservoir systems that have a low and moderate potential for liquid hydrocarbons C5+. The optimised multidimensional hydrodynamic calculations, utilising geological and technological models, are crucial in determining the parameters for the technological production and injection wells.","PeriodicalId":55468,"journal":{"name":"Archives of Mining Sciences","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140745110","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

Hard Coal as a Necessary Energy Resource in Poland 硬煤作为波兰的必要能源资源

IF 1.2 4区工程技术

Archives of Mining Sciences Pub Date : 2024-04-04 DOI: 10.24425/ams.2024.149827

P. Strzałkowski, Marek Maruszczyk

引用次数: 0

Challenges Facing the Polish Energy Sector in 2024 and Upcoming Years 2024 年及未来几年波兰能源行业面临的挑战

IF 1.2 4区工程技术

Archives of Mining Sciences Pub Date : 2024-04-04 DOI: 10.24425/ams.2024.149832

S. Tokarski, Antoni Tajduś

引用次数: 0

149824 149824

IF 1.2 4区工程技术

Archives of Mining Sciences Pub Date : 2024-03-04 DOI: 10.24425/ams.2024.149824

引用次数: 0