Showing 21 - 40 results of 750 for search '"coal mines"', query time: 0.07s Refine Results
  1. 21

    Pattern Recognition of Signals for the Fault-Slip Type of Rock Burst in Coal Mines by X. S. Liu, J. Tan, Y. L. Tan, S. C. Hu

    Published 2015-01-01
    “…The fault-slip type of rock burst is a major threat to the safety of coal mining, and effectively recognizing its signals patterns is the foundation for the early warning and prevention. …”
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    Article
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    Experimental Study and Application of Inorganic Solidified Foam Filling Material for Coal Mines by Hu Wen, Duo Zhang, Zhijin Yu, Xuezhao Zheng, Shixing Fan, Bin Laiwang

    Published 2017-01-01
    “…The results can be used to determine the optimal material ratios of inorganic solidified foam-filled material for coal mines, and filling technology for an airtight wall was designed. …”
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    Article
  4. 24

    Discriminant Model of Coal Mining Microseismic and Blasting Signals Based on Waveform Characteristics by Baolin Li, Nan Li, Enyuan Wang, Xuelong Li, Zhibo Zhang, Xin Zhang, Yue Niu

    Published 2017-01-01
    “…The attenuation of the coal mining MS signals is slower and more fluctuant than that of the blasting signal. …”
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    Article
  5. 25

    Application and Development of an Environmentally Friendly Blast Hole Plug for Underground Coal Mines by Donghui Yang, Yixin Zhao, Zhangxuan Ning, Zhaoheng Lv, Huafeng Luo

    Published 2018-01-01
    “…The impact test on the plug was carried out using an improved split Hopkinson pressure bar test system, and the industrial test was carried out in underground tunnel of coal mine. The tests results showed that, compared with clay stemming, the new method proposed in this paper could prolong the action time of the detonation gas, prevent premature detonation gas emissions, reduce the unit consumption of explosives, improve the utilization ratio, reduce the labor intensity of workers, and improve the effect of rock blasting with low cost of rock breaking.…”
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    Article
  6. 26

    Coal Mine Gas Explosion Vulnerability Assessment Based on the “Glass Heart” Model by Shuicheng Tian, Pengfei Yang, Kai Tang

    Published 2021-01-01
    “…Gas explosion, which is the main type of accidents reported in coal mines, comes with serious economic and safety consequences. …”
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    Article
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    Multiparty Evolutionary Game Model in Coal Mine Safety Management and Its Application by Rongwu Lu, Xinhua Wang, Hao Yu, Dan Li

    Published 2018-01-01
    “…Coal mine safety management involves many interested parties and there are complex relationships between them. …”
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    Article
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    Study on Temporal and Spatial Characteristics of Overlying Strata in the Deep Coal Mining Process by Bang’an Zhang, Yushun Yang, Dongming Zhang

    Published 2021-01-01
    “…The three-dimensional displacement field distribution nephogram of overlying strata in the process of coal mining is obtained. With the continuous advance of the working face, the roof strata of coal seam undergo the continuous dynamic subsidence process, and the roof subsidence increases continuously, showing the shape of “bowl” with sharp bottom. …”
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    Article
  11. 31

    Gas drainage and utilization in coal mines in China: History, technological advances, and prospects by Guofu LI, Chao LI, Bichuan ZHANG, Yun XU, Zheng WANG, Xianjun ZHOU

    Published 2025-01-01
    “…Objective and Methods To promote the research and application of gas drainage and utilization technologies for coal mines, this study systematically summarizes the history of China’s coal mines transitioning from gas pumping to gas drainage, the accurate and effective gas drainage technologies for typical coal mining areas in China, and the latest applications of technologies related to safe gas gathering and transportation, as well as the utilization of gas with a full range of concentrations. …”
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    Article
  12. 32

    Research on the Characteristics of Coal Bump and Monitoring and Early Warning in Hujiahe Coal Mine by Fei Yu, Tong Zhang, Zhen Wei

    Published 2022-01-01
    “…Under the high intensity mining disturbance, coal bump is easily triggered by the sudden release of large amount of elastic energy contained in the coal body, which seriously affects coal mine safety production. Triaxial experiments were used to study the damage characteristics of coal samples subjected to loading at the 401103 working face of Hujiahe coal mine, and the critical value of peak strength of coal samples was investigated. …”
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    Article
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    Optimization and Hydration Mechanism of Composite Cementing Material for Paste Filling in Coal Mines by Jinxiao Liu, Wenxin Li, Feng Zhang, Xinguo Zhang, Lianjun Chen, Yongle Liu

    Published 2019-01-01
    “…This study can provide references for optimization of composite cementing material for paste filling in coal mines.…”
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    Article
  15. 35

    Study on Damage Constitutive Model of High-Concentration Cemented Backfill in Coal Mine by Baogui Yang, Haigang Yang

    Published 2021-01-01
    “…In order to construct the damage constitutive model (DCM) of high-concentration cemented backfill (HCCB) in coal mine, the generalized Hoek-Brown strength criterion was used as the failure criterion. …”
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    Article
  16. 36

    Application of Comprehensive Geophysical Prospecting Method in the Exploration of Coal Mined-Out Areas by Xiao Luo, Shuang Gong, Zhonggang Huo, Hongyan Li, Xinpin Ding

    Published 2019-01-01
    “…Due to the influence of mining technology, some coal mines will leave mined-out areas (or goafs) in the rock mass after mining. …”
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    Article
  17. 37

    Quantitative Evaluation for the Threat Degree of a Thermal Reservoir to Deep Coal Mining by Yun Chen, Xinyi Wang, Yanqi Zhao, Haolin Shi, Xiaoman Liu, Zhigang Niu

    Published 2020-01-01
    “…The area above the medium-threat zone accounts for 71.82% of the total study area, indicating that deep coal mining is affected by multiple factors and that roof water and heat disasters are more likely to occur.…”
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    Article
  18. 38

    Experimental Study on Dynamic Characteristics of Annular Coal Mine Sandstone after Different Temperatures by Qi Ping, Yulin Wu, Qi Gao, Shuo Wang, Kaifan Shen, Chen Wang, Xiangyang Li

    Published 2022-01-01
    “…The study on the dynamic mechanical properties of annular coal mine sandstone under different temperatures has important guiding significance for mine excavation and rock engineering design and construction. …”
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    Article
  19. 39

    Corrosion Behavior and Failure Mechanism of Prestressed Rock Bolts (Cables) in the Underground Coal Mine by Qiong Wang, Fengnian Wang, Aiwu Ren, Rui Peng, Jian Li

    Published 2021-01-01
    “…In this study, the corrosion behavior and failure mechanism of rock bolt (cable) samples obtained from the underground coal mine were examined and discussed. Macroscopic observation and weight loss tests were carried out for the bolts’ corrosion characteristics without failure. …”
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    Article
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