Showing 401 - 420 results of 750 for search '"coal mines"', query time: 0.06s Refine Results
  1. 401
  2. 402

    Stability and Control of Retracement Channels in Thin Seam Working Faces with Soft Roof by Binbin Qin, Fulian He, Xiaobing Zhang, Xuhui Xu, Wei Wang, Liang Li, Chen Dou

    Published 2021-01-01
    “…The safe and efficient mining of the coal mine is ensured, and the research results can provide guidance for similar working faces.…”
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    Article
  3. 403

    Single Pick Cutting Rock Load Identification Based on Improved Regularization Method by Lei Dong, Siyu Zhai, Bukang Wang, Liang Dong, Junyuan Wang, Ruimin Shi

    Published 2021-01-01
    “…The research could benefit the design of the cutting system and the arrangement of the pick on the coal mine or tunneling machinery.…”
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    Article
  4. 404
  5. 405

    Roadway Deformation and Control under Multidisturbed Secondary High Stress by Xiaoguang Sun, Haibin Wang, Xiaofang Wo, Zhimeng Sun, Wenliang Sun, Chunge Li

    Published 2022-01-01
    “…Aiming at the serious deformation and failure of mining roadway under the condition of high secondary stress in Xuchang Coal Mine, Shandong Province, the deformation law of surrounding rock under the influence of high secondary stress in the original support belt transport roadway was analyzed by the method of field measurement and numerical simulation, and the control scheme of surrounding rock was put forward. …”
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    Article
  6. 406
  7. 407

    Study on Stress Relief of Hard Roof Based on Presplitting and Deep Hole Blasting by Peng Gong, Yongheng Chen, Zhanguo Ma, Shixing Cheng

    Published 2020-01-01
    “…With the combination of the two blasting methods, the end-mining coal pillar size of Luning Coal Mine can be reduced to 60 m. The method combining presplitting and deep hole blasting can effectively reduce the end-mining coal pillar size and reduce the impact of mining on the deformation of the dip roadway.…”
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    Article
  8. 408

    Modelling of P-wave velocity changes in coal seams with increased depth: a case study by Maciej Łapczyński, Zenon Pilecki, Krzysztof Krawiec, Artur Słomian, Elżbieta Pilecka, Tomasz Łątka

    Published 2025-01-01
    “…The research was performed at the Zofiówka Coal Mine in the geological and mining conditions of the Upper Silesian Coal Basin in Poland. …”
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    Article
  9. 409

    Evaluation of a 38 L Explosive Chamber for Testing Coal Dust Explosibility by Robert Eades, Kyle Perry

    Published 2019-01-01
    “…Coal dust explosions are the deadliest disasters facing the coal mining industry. Research has been conducted globally on this topic for decades. …”
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    Article
  10. 410

    Numerical Simulation of Mining-Induced Damage in Adjacent Tunnels Based on FLAC3D by Guorui Wang, Peixian Li, Qiang Wu, Ximin Cui, Zhixiang Tan

    Published 2021-01-01
    “…The tunnels were established crossing over the old goafs of a coal mine. The tunnels have been damaged three times between 2014 and 2016. …”
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    Article
  11. 411

    A Study of Safety Coefficient Determination and Support Parameter Optimization Based on Vulnerability Preevaluation by Minglei Zhang, Linsheng Gao, Yue Yang, Yidong Zhang, Ming Ji

    Published 2021-01-01
    “…This method provides a reliable basis for the optimization design of bolt support parameters in coal mine gateway.…”
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    Article
  12. 412

    Characterization and Identification of Coal and Carbonaceous Shale Using Visible and Near-Infrared Reflectance Spectroscopy by En Yang, Shirong Ge, Shibo Wang

    Published 2018-01-01
    “…Because of the high organic carbon concentration in carbonaceous shale, a large proportion of carbonaceous shales are often misclassified into coals using visible and near-infrared (VIS-NIR) reflectance spectroscopy in the field of coal-gangue identification of hyperspectral remote sensing of coal mine. In order to study spectral characterization of coal and carbonaceous shale, three bituminite samples and three carbonaceous shales were collected from a coal mine of China, and their spectral reflectance curves were obtained by a field spectrometer in the wavelength range of 350–2500 nm. …”
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    Article
  13. 413
  14. 414

    Exploring the economic occupational health, safety, and fatal accidents in high-risk industries by Zhonghong Cao, Tao Zhou, Siyu Miao, Lingfeng Wang, Zhenzhen Wang

    Published 2025-02-01
    “…Conversely, each safety accident resulted in 1.052 coal mine fatalities and 0.153 cases of occupational disease. …”
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    Article
  15. 415

    Study on Surrounding Rock Stability Mechanism of Gob-Side Entry Retaining with Prefabricated Fracture by Hao Wu, Chuanqu Zhu, Qingfeng Li

    Published 2021-01-01
    “…The stability of the surrounding rock of the roadway is more stable than that of other angles, which is conducive to the safe mining of 5249 working faces in Beipingdong Coal Mine.…”
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    Article
  16. 416

    Research on Coal Mechanical Properties Based on True Triaxial Loading and Unloading Experiment by Yanyan Peng, Haoxiang Deng, Minghong Xing, Pengfei Guo, Chun Zhu

    Published 2021-01-01
    “…To study the safety issues caused by coal mine excavation, self-developed simulation of earth interior atmosphere and sound test system was used to perform true triaxial loading and unloading tests of coal. …”
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    Article
  17. 417

    Lugares amados, lugares sombra: éticas y estéticas en tiempos de transición by María Cecilia Roa García, Alejandro Quecedo del Val, Nils Lagrève, Ana Manuela Amaya Morales

    Published 2025-01-01
    “…The disappearance of these traditional energy practices is a profound paradox: at a moment when the urgency to cease burning fossil fuels is clearer than ever, coal mining erases age-old energy practices that have thrived in simplicity, small scale, and ethical harmony with the land. …”
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    Article
  18. 418

    Mining-Induced Damage Characteristics of Floors during Fully Mechanized Caving Mining: A Case Study by Yulong Jiang, Dongfeng Zhang, Kai Wang, Xiaoqiang Zhang

    Published 2018-01-01
    “…To study the mining-induced damage characteristics of floors during fully mechanized mining, in situ measurements were performed using the hollow inclusion strain sensors in the No. 100502 (80 m, 180 m) mining face of the Yitang Coal Mine in the Huoxi coal field in the Shanxi Province of China. …”
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    Article
  19. 419

    The Migration of Coalbed Methane under Mining Pressure and Air Injection: A Case Study in China by Liqiang Zhang, Yu Wu, Hai Pu, Xiaoping He, Pan Li

    Published 2018-01-01
    “…Gas outburst has always affected the safety of coal mining. To eliminate this risk by high-efficiency extraction of coalbed methane (CBM) in 4102 working face of number 3 coal seam in Hebi Number 3 coal mine, a model of CBM extraction in working face was established which was considering the mining impact of adjacent 4101 working face. …”
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    Article
  20. 420

    Research on Control of Rib Spalling Disaster in the Three-Soft Coal Seam by Feng Cui, Tinghui Zhang, Xiaoqiang Cheng

    Published 2021-01-01
    “…Rib spalling disaster at the coal mining faces severely restricted the safe and efficient output of coal resources. …”
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    Article