Showing 301 - 320 results of 750 for search '"coal mines"', query time: 0.05s Refine Results
  1. 301

    Strength Investigation of the Silt-Based Cemented Paste Backfill Using Lab Experiments and Deep Neural Network by Chongchun Xiao, Xinmin Wang, Qiusong Chen, Feng Bin, Yihan Wang, Wei Wei

    Published 2020-01-01
    “…However, its application in coal mines is limited due to the lack of mine tailings that can work as aggregates. …”
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    Article
  2. 302

    Numerical Investigation of Relationship between Bursting Proneness and Mechanical Parameters of Coal by Hongwei Wang, Jiaqi Song, Zeliang Wang, Yue Zhang, Shaozhen Zhang, Yaodong Jiang

    Published 2021-01-01
    “…As one of the most catastrophic dynamic hazards in underground coal mines, coal bursts have been a major safety concern around the world for many years. …”
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    Article
  3. 303
  4. 304

    Numerical Analysis of the Width Design of a Protective Pillar in High-Stress Roadway: A Case Study by FuZhou Qi, ZhanGuo Ma, Ning Li, Bin Li, Zhiliu Wang, WeiXia Ma

    Published 2021-01-01
    “…The novel numerical modeling approach and design principle of protective pillars presented in this paper can provide useful references for application in similar coal mines.…”
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    Article
  5. 305

    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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    Article
  6. 306

    Sealing Behavior and Flow Mechanism of Expandable Material Slurry with High Water Content for Sealing Gas Drainage Boreholes by Guozhong Hu, Wenrui He, Changjin Lan

    Published 2018-01-01
    “…Predrainage of coalbed gas by underground drilling is one of the main approaches for eliminating gas disasters in coal mines. Owing to the unsatisfactory sealing effect of conventional sealing materials, coalbed gas drainage boreholes face serious air leakage, resulting in a relatively low concentration of the drained gas. …”
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    Article
  7. 307

    Parametric Study on the Ground Control Effects of Rock Bolt Parameters under Dynamic and Static Coupling Loads by Zequan Sun, Lishuai Jiang, Jinquan Jiang, Xingyu Wu, Naser Golsanami, Wanpeng Huang, Peipeng Zhang, Zhongtao Niu, Xiaoyi He

    Published 2020-01-01
    “…The results contribute to the design of supports in the field of underground coal mines and provide a basis for determining the reasonable support scheme for roadways.…”
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    Article
  8. 308

    Study on Microseismic Monitoring, Early Warning, and Comprehensive Prevention of a Rock Burst under Complex Conditions by Ke Ding, Lianguo Wang, Mei Yu, Wenmiao Wang, Bo Ren

    Published 2020-01-01
    “…Rock bursts in coal mines are usually unpredictable. In view of this problem, the energy–frequency relationship and spatial distribution characteristics of microseismic events during the mining of 5305 working face in Xinhe Coal Mine under complex geological conditions were analyzed in this study. …”
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    Article
  9. 309

    Experimental Study on Flow Characteristics of Aeolian Sand in Fractures by Jiarui Chen, Wenhu Gu, Jihua Zhang, Jitao Tang, Zhengzheng Cao, Jingke Wu, Jianxiong Liu, Weizhong He, Fang Shi

    Published 2021-01-01
    “…This study can provide a theoretical basis and scientific guidance for the prevention and control of coal mine sand inrush disasters caused by roof cracking in western coal mines.…”
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    Article
  10. 310

    Experimental Study of the Influence of Moisture Content on the Mechanical Properties and Energy Storage Characteristics of Coal by Nan Liu, Chuanming Li, Ruimin Feng, Xin Xia, Xiang Gao

    Published 2021-01-01
    “…Rock burst occurs frequently as coal mining depth goes deeper, which seriously impacts the safety production of underground coal mines. …”
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    Article
  11. 311
  12. 312

    Research on Hydraulic Fracturing Pressure Relief Technology in the Deep High-Stress Roadway for Surrounding Rock Control by Wen Zhai, Yachao Guo, Xiaochuan Ma, Nailv Li, Peng Zhang, Kun Ma, Yuanxin Jing, Hong Yu, Xiaotong Li

    Published 2021-01-01
    “…With the increase of mining depth in underground engineering, deep ground pressure has an extremely unfavorable impact on safety production and the economic benefits of coal mines and the control of the roadway stability in deep mines are gradually highlighted. …”
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    Article
  13. 313

    Impacts of coal fracture roughness and aperture on the seepage of injected water: An experimental study by Gang WANG, Xuechang CHEN, Hao CHEN, Qingming LONG, Yixin LIU

    Published 2025-01-01
    “…ObjectiveWater injection into coal seams is recognized as a critical technical measure for dust removal and the prevention and control of coal and gas outbursts and rock bursts in coal mines. The effectiveness of this measure is significantly influenced by the morphological characteristics of fractures, such as their roughness and aperture. …”
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    Article
  14. 314

    Influence of Mine Earthquake Disturbance on the Principal Stress of the Main Roadway near the Goaf and Its Prevention and Control Measures by Penghui Guo, Jiazhuo Li, Xiqing Hao, Heng Cui, Lihua Tian, Wenhao Xie, Jiaqi Chu

    Published 2021-01-01
    “…The research results can provide a certain reference basis for coal mine roadway pressure relief and reducing disaster conditions.…”
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    Article
  15. 315
  16. 316

    An Experimental Investigation on the Relationship between MS Frequency Response and Coal and Gas Outburst by Quanjie Zhu, Qingsong Li, Yu Feng, Xianwei Heng, Shaoquan Li, Tao Yang

    Published 2018-01-01
    “…This approach can be useful for rockburst anticipation and control during mining in gas and highly stressed coal mines.…”
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    Article
  17. 317
  18. 318

    Nanoscale Pore Structure Characterization and Permeability of Mudrocks and Fine-Grained Sandstones in Coal Reservoirs by Scanning Electron Microscopy, Mercury Intrusion Porosimetry... by Na Zhang, Fangfang Zhao, Pingye Guo, Jiabin Li, Weili Gong, Zhibiao Guo, Xiaoming Sun

    Published 2018-01-01
    “…Porosity and permeability of two typical sedimentary rocks in coal bearing strata of underground coal mines in China, i.e., mudrocks and fine-grained sandstones, were comprehensively investigated by multiple experimental methods. …”
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    Article
  19. 319

    Construction and application of optimized model for mine water inflow prediction based on neural network and ARIMA model by Xiaoyu Gong, Bo Li, Yu Yang, MengHua Li, Tao Li, Beibei Zhang, Lulin Zheng, Hongfei Duan, Pu Liu, Xin Hu, Xin Xiang, Xinju Zhou

    Published 2025-01-01
    “…This phenomenon is characterized by non-linearity and high complexity, leading to frequent water accidents in coal mines. These accidents not only impact coal production quality but also jeopardize the safety of mine staff. …”
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    Article
  20. 320

    A key technology for synergistic backfilling of coal-based solid waste and high-salinity wastewater by Shuning DONG, Shujiang YU, Xingling DONG, Buqin ZHANG, Xiaoming GUO, Xiaodong WANG, Kai WANG, Shibin ZHU, Boqiang WU, Lei LIU

    Published 2025-01-01
    “…Specifically, high-salinity water, rather than ordinary water and additives such as early strength agent, and solid waste cementitious materials—used to replacing part of cement, were mixed while stirring to produce filling paste, which was then pumped to the underground goaves of coal mines. To analyze the feasibility of this technology, this study investigated the mechanical properties and potential environmental impacts of filling paste prepared using coal-based solid waste and high-salinity wastewater from a certain coal mine in the Ningdong coal base in Ningxia. …”
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    Article