Showing 361 - 380 results of 750 for search '"Coal mining"', query time: 0.06s Refine Results
  1. 361

    Investigation of Pressure Relief Borehole Effects Using In Situ Testing Based on Distributed Optical Fibre Sensing Technology by Yunpeng Li, Dequan Sun, Shankun Zhao, Kaihua Liang, Kai Cui, Huaihong Wang

    Published 2021-01-01
    “…Borehole pressure relief method is one of the most effective ways of rock burst prevention in coal mines. The measured results of borehole pressure relief at no. 8939 longwall face in Xinzhouyao coal mine, China, are presented here. …”
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    Article
  2. 362

    Study on Roof-Coal Caving Characteristics with Complicated Structure by Fully Mechanized Caving Mining by Yunpei Liang, Lei Li, Xuelong Li, Kequan Wang, Jinhua Chen, Zhongguang Sun, Xuelin Yang

    Published 2019-01-01
    “…According to the mechanical characteristics of roof-coal in Qinyuan coal mine, deep-hole blasting technique has been used to reduce the fragments of roof-coal crushed. …”
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    Article
  3. 363

    The Stability of Gob-Side Entry Retaining in a High-Gas-Risk Mine by Junwen Zhang, Yulin Li

    Published 2019-01-01
    “…There are series of problems faced by most of the coal mines in China, ranging from low-coal recovery rate and strained replacement of working faces to gas accumulation in the upper corner of coalfaces. …”
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    Article
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    A GIS Based Unsteady Network Model and System Applications for Intelligent Mine Ventilation by Hui. Liu, Shanjun Mao, Mei. Li, Pingyang Lyu

    Published 2020-01-01
    “…The study is potential and is expected to guide the real-time coal mine safety production.…”
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    Article
  11. 371

    Variation Pattern of the Stress-Strain Curve of Concrete under Multifactor Coupling by Haijian Xie, Henglin Lv

    Published 2022-01-01
    “…The air shafts of coal mines contain solid, liquid, and gaseous substances that corrode concrete under conditions of relatively high temperature and humidity. …”
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    Article
  12. 372

    Experimental Study on Mechanical Properties and Acoustic Emission Characteristics of Water Bearing Sandstone under Stable Cyclic Loading and Unloading by Xinzhan Qin, Yu Zhou, Manchao He

    Published 2020-01-01
    “…Furthermore, considering the long-term effects of repeated pumping and drainage and hydrodynamic pressure on the surrounding rock in coal mines, a large amount of sandstone was collected from the Ruineng coal mine in Yan’an city to carry out a series of laboratory tests. …”
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    Article
  13. 373

    Mechanical Behavior and Impact Resistance Tendency of Coal Mass with Different Water Content by Fei Liu, Yongsheng Han

    Published 2022-01-01
    “…As a major hidden danger of mine safety production, the impact resistance tendency of rock seriously restricts the safety and high yield of coal mine. At the same time, as one of the puzzles of rock mechanics, it has been perplexing many domestic and foreign scholars since the recorded rock burst in South Stafford coal mine in 1738. …”
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    Article
  14. 374

    New Insights into the Drill Cutting Characteristics and Fault Distribution in Gas-Containing Coal Seams by Xinghua Zhang, Haifeng Wang, Dan Zhao, Zheng Shang, Tianwei Ren, Shuaikang Geng, Xiaorui Hao, Chang Liu, Jinzhou Li

    Published 2022-01-01
    “…With coal seams of different buried depths in Luling Coal Mine, Yuenan Coal Mine, and Sihe Coal Mine with obvious difference in hardness and outburst hazards selected as the research objects, the morphological characteristics of a sample particle size such as the Rosin-Rammler distribution function, average particle size, cumulative mass distribution, and mechanical parameters such as particle strength and F value were statistically analyzed through drill cuttings related to sampling points at different positions of faults already known. …”
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    Multistage identification method for real-time abnormal events of streaming data by Hao Luo, Kexin Sun, Junlu Wang, Chengfeng Liu, Linlin Ding, Baoyan Song

    Published 2019-12-01
    “…Coal mine micro-seismic signal is of great importance in the investigation of vibration characteristic, attenuation law, and disaster assessment of coal mine disasters. …”
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