Showing 741 - 760 results of 954 for search '"Coal mining"', query time: 0.06s Refine Results
  1. 741

    Experimental Investigation into the Influences of Weathering on the Mechanical Properties of Sedimentary Rocks by Xiaoshuang Li, Yingchun Li, Saisai Wu

    Published 2020-01-01
    “…The time-dependent behaviors of the sedimentary rocks which refer to the altering of the mechanical and deformable properties of rock elements in the long-term period are of increasing importance in the investigation of the failure mechanism of the rock strata in underground coal mines. In order to obtain the accurate and reliable mechanical parameters of the sedimentary rocks at different weathering grades, the extensive experimental programs including the Brazilian splitting test, uniaxial compression tests, and direct shear tests have been carried out on the specimens that exposed to the nature environments at different durations. …”
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    Article
  2. 742

    Review of an Improved Longwall Panel Layout for Ground Control in Longwall Mining by Z. M. Cui, P. F. Wang, Z. Li, Y. Yang

    Published 2022-01-01
    “…Conventional longwall layout (CLL) for mining coal, trona, etc. is still fraught with problems including low resource recovery, wavy ground surface subsidence, bumps or rockbursts, gateroad support and maintenance, poisonous air hazard, spontaneous combustion in coal mines, instability of equipment at inclined, or steeply inclined working face, etc. …”
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  3. 743

    A New Closed-Form Solution of the Side Abutment Pressure Distribution of Roadway by Liang Cheng, Yidong Zhang

    Published 2018-01-01
    “…Instability of coal wall is one of the hot-button and difficult issues in the study of coal mine ground control. The shallow side coal of roadway in the coal measures is usually weak and consequently easy to bring about failure. …”
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    Article
  4. 744

    Understanding the influence of stratification for mine water management: a comparative study by Elke Mugova, Christian Wolkersdorfer

    Published 2025-01-01
    “…The investigation of 29 ore and coal mine shafts and their corresponding physico-chemical depth profile measurements was aimed to compare the profiles with each other, while also taking into account the shaft geometry and the layout of the mine. …”
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    Article
  5. 745

    A Preliminary Study on the Design Method for Large-Diameter Deep-Hole Presplit Blasting and Its Vibration-Isolation Effect by Shuangshuang Xiao, Hongsheng Wang, Guowei Dong

    Published 2019-01-01
    “…Finally, the reasonable hole spacing for presplit blasting, distance from presplit blast hole to the cushion hole, and the charge mass in blast holes in the Heidaigou open-pit coal mine were determined, respectively.…”
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  6. 746

    Analysis of Failure Characteristics and Strength Criterion of Coal-Rock Combined Body with Different Height Ratios by Tuo Wang, Zhanguo Ma, Peng Gong, Ning Li, Shixing Cheng

    Published 2020-01-01
    “…In underground mining and roadway support engineering of coal mine, the coal and rock layers bear loads together; therefore, the deformation and mechanical characteristics of the coal-rock combined bodies are not the same as those of the pure coal or rock bodies. …”
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  7. 747

    Rational Boreholes Arrangement of Gas Extraction from Unloaded Coal Seam by Chaojun Fan, Sheng Li, Haohao Zhang, Zhenhua Yang

    Published 2018-01-01
    “…Based on the multiphysics field theory, the hydraulic-mechanical coupling model of gas extraction in the unloading coal seam was established, and the gas extraction process by drilling borehole in the floor roadway in the overburden of Panyi Coal Mine 1551 (1) panel was simulated. The influence of different drilling arrangements on the gas extraction effect was analyzed. …”
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    Article
  8. 748

    Research and Application of a Multi-Agent-Based Intelligent Mine Gas State Decision-Making System by Yi Sun, Xinke Liu

    Published 2025-01-01
    “…Experimental results indicate that the system effectively improves the efficiency of gas alarm processing and the quality of judgment reports in coal mines, providing solid technical support for accident prevention and management in mining operations.…”
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    Article
  9. 749

    Research of Rock Burst Risk Induced by Mining and Field Case in Anticlinal Control Area by Shitan Gu, Zhimin Xiao, Bangyou Jiang, Ruifeng Huang, Peng Shan

    Published 2018-01-01
    “…Stress concentration caused by tectonic stress and mining disturbance in coal mines induces a unique type of rock burst. No. 3201 working face controlled by an anticline structure in the Shandong mining area is used as the research background. …”
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    Article
  10. 750

    Multifactor Evaluation of Multiple Service Support and Optimization of Working Resistance of New Support Based on Dynamic Pressure by Fulian He, Liang Li, Wenrui He, Xiaobin Li, Kai Lv, Binbin Qin, Xuhui Xu

    Published 2020-01-01
    “…The scientific and feasible method is extremely important for the evaluation of whether the support of coal mines needs to be scrapped, but it has not been formed. …”
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    Article
  11. 751

    Experimental study on adsorbing of flue gas and its application in preventing spontaneous combustion of coal by Fei Gao, Cun-Bao Deng, Xue-Feng Wang, Xue-Ming Li, Feng-Wei Dai

    Published 2018-12-01
    “…We propose an experimental adsorption device, imitating the environment of a coal-mine goaf and the composition of the flue gas in Tashan Mine Power Plant. …”
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  12. 752

    Rupture and Migration Law of Disturbed Overburden during Slicing Mining of Steeply Dipping Thick Coal Seam by Shuai Liu, Ke Yang, Chunan Tang, Xiaolou Chi

    Published 2020-01-01
    “…Steeply inclined and thick coal seams in Huainan Panbei Coal Mine in Anhui Province, China, were analyzed by physical analog modeling, acoustic emission (AE), and distributed fiber sensing (DBS). …”
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  13. 753

    Key Strata Inducing Dynamic Disasters Based on Energy Condition: Criterion and Application by Chao Xu, Gang Yang, Haoshi Sun, Liangliang Qin, Kai Wang, Bo Ren, Zhijie Wen

    Published 2021-01-01
    “…The disaster-inducing ability of the main THRS was analyzed, and the igneous sill was judged as KDIS, taking the Yangliu Coal Mine as project background. The breaking laws of the igneous sill were obtained by the methods of UDEC numerical simulation and microseismic monitoring, which verified the criterion of KDIS.…”
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  14. 754

    Stress Evolution Mechanism and Control Technology for Reversing Mining and Excavation under Mining-Induced Dynamic Pressure in Deep Mine by Jiyu Wang, Fangtian Wang, Xigui Zheng

    Published 2022-01-01
    “…In order to alleviate the relationship between mining and roadway, the 3204 working face and the 3206 roadway in Shanxi Taitou coal mine are taken as an example, and the width of mining and the support parameters of mining while reversing mining and excavation under dynamic pressure are optimized. …”
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  15. 755

    INFLUENCE OF PRESSURE ON COAL FREEZING ADHESIVE STRENGTH by WANG ChunHua, XU HanWen, WANG ZhongXian, QU Hui

    Published 2016-01-01
    “…Coal is the important basic energy in China,while the coal freezing adhesion seriously restricts with coal mine safe and efficient production in winter. …”
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  16. 756

    Numerical Simulation of Parameters Optimization for Goaf Gas Boreholes by Jiajia Liu, Jianliang Gao, Ming Yang, Dan Wang, Liang Wang

    Published 2019-01-01
    “…In view of the ground drilling of the N2206 working face in Shanxi Wangzhuang Coal Mine, the gas concentration is low and the extraction effect is not good. …”
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  17. 757

    Study on Reasonable Roadway Position of Working Face under Strip Coal Pillar in Rock Burst Mine by Hengze Yang, Zhongping Guo, Daozhi Chen, Chao Wang, Fuyu Zhang, Zhaowen Du

    Published 2020-01-01
    “…Based on the research background of the working face under the strip coal pillar in Jinqiao Coal Mine of Jining, Shandong Province, through theoretical analysis, similar material simulation experiment, and numerical simulation experiment, the stress distribution law, plastic failure range, and rationality of coal pillar setting in different width sections are systematically studied. …”
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