Showing 261 - 280 results of 750 for search '"coal mines"', query time: 0.09s Refine Results
  1. 261

    Performance Research of Materials and Engineering Application of Overburden Strata Separation-Zone Grouting Technology by Wanpeng Huang, Huanyu Li, Gang Sun, Donghai Jiang, Yanfa Gao

    Published 2022-01-01
    “…Simultaneously, this advancement improves the resource recovery rate of coal mines and provides greater benefits for mining enterprises.…”
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    Article
  2. 262

    Mechanical Constitutive and Seepage Theoretical Model of Water Storage Media Based on Fractional Derivative by Lujun Wang, Yang Wu, Xiaoqian Zhu, Peng Li, Zhiguo Cao, Huan Yang

    Published 2022-01-01
    “…Using an abandoned underground goaf in coal mines as water reservoirs has been successfully applied for protecting mine water resources in western China. …”
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    Article
  3. 263
  4. 264

    Dynamic Influence of Near-Source Seismic Ground Motion on Underground Mine Working Stability Using Time-Frequency Analysis by Adam Lurka, Grzegorz Mutke, Piotr Małkowski

    Published 2021-01-01
    “…The properties of recorded strong ground motion velocity seismograms for two high energy seismic events and two blasts from two underground coal mines in Poland have been extracted with the use of continuous wavelet transform spectrograms showing the duration time of each frequency group. …”
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    Article
  5. 265

    Prospect Analysis of Paleocene Coalbed Methane: A Case Study of Hangu Formation, Trans-Indus Ranges, Pakistan by Hamza Azam Qadri, Ali Wahid, Numair Ahmed Siddiqui, Syed Haroon Ali, Ahmed Abd El Aal, Amirul Qhalis Bin Abu Rashid, Mohd Najib Bin Temizi

    Published 2022-01-01
    “…A number of samples were tested from the different coal mines in terms of these debatable components. The results indicate that the rank of studied coal is bituminous to subbituminous in which the carbon ratio, volatile matter, and sulfur contents are increasing with depth towards the south. …”
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    Article
  6. 266
  7. 267

    Mechanism of microscopic behind the influence of stress loading on gas adsorption by coal by Zhihui Wen, Shuqian Guo, Yanxia Zhao, Yanping Wang, Ran Jia, Jiangang Ren

    Published 2025-01-01
    “…The research findings are anticipated to offer theoretical and practical guidance for the prevention and control of gas disasters in deep coal mines and the extraction of coalbed methane.…”
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    Article
  8. 268

    Layout of the First-Mining Working Face in the Protected Seam for Pressure Relief by Peak Stress Shift by Xiao-Xu Gao, Guo-Jin Chai, Guang-An Zhu

    Published 2021-01-01
    “…The results can provide a reference for the layout of the working faces in protected seams in adjacent coal mines.…”
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    Article
  9. 269

    A New Method to Improve the Fracturing Effect of Coal Seams by Using Preset Slots and Induced Stress Shadows by Li Li, Lei Zhou, Honglian Li, Binwei Xia, Junping Zhou

    Published 2021-01-01
    “…Efficient extraction of coal bed methane before coal mining is essential to eliminate the risk of coal-gas outbursts. …”
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    Article
  10. 270

    Influencing Factors of Disturbance Effects of Blasting and Driving of Deep Mine Roadway Groups by Jiaguang Kan, Peng Wang, Peng Wang

    Published 2021-01-01
    “…The development and application of roadway group layout methods in coal mines have become more common and the mutual disturbance of blasting and driving of roadway groups has also become more prominent at depth. …”
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    Article
  11. 271

    Effect of Bedding Structure on the Energy Dissipation Characteristics of Dynamic Tensile Fracture for Water-Saturated Coal by Shuang Gong, Lei Zhou, Zhen Wang, Wen Wang

    Published 2021-01-01
    “…The conclusions provide a theoretical basis for understanding the deterioration mechanism of coal after water saturation and the implementation of water injection dust prevention technology in coal mines.…”
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    Article
  12. 272

    Optimization Technology of Frequency Conversion Constant Pressure Control System of Mine Emulsion Pump Station in Electrical Engineering and Automation Specialty by Cong Tian, Xiwen Wei, Chao Yang, Chang Su

    Published 2021-01-01
    “…No matter in metal mines or coal mines, an emulsion pump station has a wide range of application market and can play an important role. …”
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    Article
  13. 273

    Mining Stress Distribution and Gas Drainage Application of Coal Seam Group under Fault Influence by Meng Tang, Xiangtao Kang, Jiachi Ren, Lin Gao, Zhenqian Ma, Dezhong Kong

    Published 2022-01-01
    “…The existence of fault structures often seriously endangers the safe production of coal mines. In order to ensure the safe and efficient production of close coal seam group mines under the influence of faults, it is of wide engineering significance to study the gas occurrence and extraction technology between coal seam groups under the influence of faults. …”
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    Article
  14. 274

    Anomaly Detection for Time Series with Difference Rate Sample Entropy and Generative Adversarial Networks by Keke Gao, Wenbin Feng, Xia Zhao, Chongchong Yu, Weijun Su, Yuqing Niu, Lu Han

    Published 2021-01-01
    “…The prediction and early warning of coal mine thermodynamic disasters are mainly determined by the changes of the index gas concentration pattern in coal mine mined-out areas collected continuously. …”
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    Article
  15. 275

    Effect of Indenter Angle on Bearing Performance of Coal and Accompanying Rocks Under Point Load and Characterization of Mechanical Parameters by Qian Wang, Yujiang Zhang, Delong Cui, Guorui Feng, Yunlou Du, Shuai Zhang, Haojie Cheng, Zhengjun Zhang

    Published 2025-01-01
    “…ABSTRACT Coal, mudstone, sandstone, and limestone, which are common in coal mines, were selected as research objects, and 60°, 90°, and 120° indenters were used to conduct point load tests to study the deformation and failure laws of rocks under point loads. …”
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    Article
  16. 276

    Stability Control and Quick Retaining Technology of Gob-Side Entry: A Case Study by Hengjie Luan, Yujing Jiang, Lujie Zhou, Huili Lin

    Published 2018-01-01
    “…In Chinese coal mines, gob-side entry retaining, an efficient technique for coal mining, has been widely used. …”
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    Article
  17. 277

    A Storm Frame Optimization Method for Predicting and Warning the Safety Status of a Shearer by Pei Zhang, Yanpeng He, Li Ma, Changkui Cong

    Published 2025-01-01
    “…This model realizes real‐time prediction and early warning of the shearer's operating status, providing technical support for intelligent mining in coal mines.…”
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    Article
  18. 278
  19. 279

    Roof-Breaking Characteristics and Ground Pressure Behavior in Deep Jurassic Coal Seams: A Thick-Plate Model and Field Measurements by Wei Zhang, Yandong Zhang, Weisheng Zhang, Liang Chen, Fanjia Li, Kaidi Xie

    Published 2022-01-01
    “…A thick-plate mechanical model (TPMM) of the main roof was developed and applied to the case study of 21102 first-mined coalface (FMC) of the Hulusu Coal Mine (HCM) in the Hujirt Mining Area (HMA), China. …”
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    Article
  20. 280

    Roof Fracture Characteristics and Strata Behavior Law of Super Large Mining Working Faces by Guozhen Zhao, Baisheng Zhang, Lihong Zhang, Chao Liu, Shuai Wang

    Published 2021-01-01
    “…Exploiting the working face in coal mines using a super long mining length and large mining height has become important for intensive production with high yield and high efficiency. …”
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    Article