Showing 301 - 320 results of 750 for search '"Coal mining"', query time: 0.07s Refine Results
  1. 301

    Dynamic Analysis of the Scraper Conveyor under Abnormal Operating Conditions Based on the Vibration and Speed Characteristics by Shoubo Jiang, Weijian Ren, Qinghua Mao, Qingliang Zeng, Pengfei Yu, Kuidong Gao, Liang Wang

    Published 2021-01-01
    “…The scraper conveyor is the key coal transportation equipment on the coal mining face. The conveyor often encounters the influence of abnormal working conditions, such as stuck chains, broken chains, and impact loads, which have a great effect on the smooth operation of the scraper chain and seriously affect the safety of coal production. …”
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    Article
  2. 302
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    Experimental Study on Water Reduction Modification and Efficient Utilization of Coal-Based Solid Waste Slurry by Chengwei Ma, Dayang Xuan, Jialin Xu, Jian Li

    Published 2024-01-01
    “…Unreasonable treatment of coal-based solid waste and coal mining damage are important factors that cause negative environmental effects. …”
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    Article
  4. 304

    Numerical Investigation of Influences of Drilling Arrangements on the Mechanical Behavior and Energy Evolution of Coal Models by Tong-bin Zhao, Wei-yao Guo, Feng-hai Yu, Yun-liang Tan, Bin Huang, Shan-chao Hu

    Published 2018-01-01
    “…Destress drilling method is one of the commonly used methods for mitigating rock bursts, especially in coal mining. To better understand the influences of drilling arrangements on the destress effect is beneficial for rock burst mitigation. …”
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    Article
  5. 305
  6. 306

    Experimental study and field application of hydraulic flushing technology in soft coal seam by Xun Zhao, Bei Hu, Baisheng Nie, Xianfeng Liu, Dan Zhao, Hongsheng Li, Chuan Deng, Zhengpeng Duan

    Published 2025-01-01
    “…Abstract To enhance the safety of coal mining operations and improve the efficiency of gas extraction, hydraulic flushing technology has been widely used in low permeability coal seams. …”
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    Article
  7. 307

    Critical Conditions and Energy Transfer Characteristics of the Failure Process of Coal-Rock Combination Systems in Deep Mines by Haitao Sun, Linchao Dai, Yanbao Liu, Hongwei Jin

    Published 2021-01-01
    “…With the steady increase in the size, intensification, and modernization of coal production enterprises, the deep coal resources in large coal bases are gradually entering the mining stage. When the coal mining reaches the deep zone, the interactions between various underground dynamic hazards begin to occur. …”
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  8. 308

    Experimental Study on Physical Similar Model of Fault Activation Law Based on Distributed Optical Fiber Monitoring by Dingding Zhang, Yanyan Duan, Wengang Du, Jing Chai

    Published 2021-01-01
    “…The impact ground pressure in coal mining is closely related to the fault structure, and the fault activation pattern is different when the working face advances along the upper and lower plates of the fault, respectively. …”
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    Article
  9. 309

    Exploration and Practice of Pressure Relief by Slotting Coal Seams with a Diamond Wire Saw by Zhu Tang, Shuqing Li, Fei Huang, Shouqing Huang, Kangxu Cai

    Published 2021-01-01
    “…To safely and economically eliminate the threat of high geostress in the coal mining process, based on the engineering case study of pressure relief by slotting residual coal pillars at a mine in the Kailuan mining area, a method of pressure relief by slotting coal seams with a wire saw was explored, and numerical simulation was carried out. …”
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    Article
  10. 310

    Voz territorial, despojo y resistencia a la expansión del extractivismo carbonífero en el sur de La Guajira by María Cecilia Roa-García, Alejandro Quecedo del Val, Nils Lagrève, Ana Manuela Amaya Morales

    Published 2025-01-01
    “…This study is based on participant observation and in-depth interviews conducted between 2023 and 2024 with members of communities affected by coal mining in La Guajira. These include the displaced peoples of Roche, Chancleta, Patilla, and Tabaco, as well as the community of Cañaverales, which inhabits land designated for a new coal mine. …”
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    Article
  11. 311

    A Multiscale Structural Analysis of Soft and Hard Coal Deposits in Deep High-Gas Coal Seams by Anying Yuan, Guangsheng Fu, Junling Hou

    Published 2021-01-01
    “…In recent years, with the increases in coal mining depths, the risk of coal seam outburst occurrences has increased. …”
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  14. 314

    Preliminary Study on High-Energy and Low-Energy Microfracture Event Evolution Characteristics in the Development Process of Rock Failure by Guofeng Yu, Guanwen Cheng, Lianchong Li, Chunan Tang, Bo Ren, Yunchun Han

    Published 2020-01-01
    “…MS monitoring results from the No. 22517 working face of the Dongjiahe Coal Mine are studied, and AE monitoring results of a biaxial compression experiment of a granite specimen are analyzed. …”
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  15. 315
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    Using roof borehole electrical resistivity tomography to monitor roof water infiltration in a mine work face by Liang Du, Wenjin Zhu, Lei Wang, Hao Li, Xiaoyu Jiao, Teng Qin

    Published 2025-01-01
    “…Abstract Roof water inrush in coal mining is a significant type of water-related disaster that usually results from the interconnection of water-bearing geological formations formed by cracks during and after work face mining. …”
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  17. 317

    Analysis on Influence Factors of Roadway Instability in High-Stress, Steeply Inclined Extra-Thick Coal Seam by Hai Rong, Liting Pan, Xiaoyan Li, Ming Wang, Zeliang Qu, Mengsheng Lu, Kaipeng Guo

    Published 2021-01-01
    “…In order to solve the problem of roadway support safety in coal mining under high stress conditions and to improve safe and efficient production in coal mines, the control countermeasures of the surrounding rock stability and the optimization scheme of support are put forward and the model and numerical simulation of roadway bolt support system are established. …”
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    Uniaxial Compression Creep Relaxation and Grading of Coal Samples via Tests on the Progressive Failure Characteristics by Zuqiang Xiong, Changsheng Song, Chengdong Su, Xiaolei Wang, Cheng Wang, Yu Hao

    Published 2019-01-01
    “…The entire coal samples were divided into many thin-sheet debris via gradual collapse and shedding, and the number of cracks increased significantly, showing evident lateral expansion characteristics that are similar to the rib spalling characteristics in high coal mining working faces.…”
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    Article