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Volume 41 Issue 10
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YANG Guang-yu, JIANG Fu-xing, QU Xiao-cheng, LI Lin, WEI Quan-de, LI Nai-lu. Comprehensive monitoring and early warning technology for rock burst of tunneling face with thick coal seams[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(10): 1949-1958. DOI: 10.11779/CJGE201910021
Citation: YANG Guang-yu, JIANG Fu-xing, QU Xiao-cheng, LI Lin, WEI Quan-de, LI Nai-lu. Comprehensive monitoring and early warning technology for rock burst of tunneling face with thick coal seams[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(10): 1949-1958. DOI: 10.11779/CJGE201910021
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Comprehensive monitoring and early warning technology for rock burst of tunneling face with thick coal seams

  • 1. Coal Mining and Designing Department, Tiandi Science and Technology Co., Ltd., Beijing 100013, China;
    2. Civil & Resources Engineering School, University of Science and Technology Beijing, Beijing 100083, China;;
    3. Beijing Anke Xingye Science and Technology Co., Ltd., Beijing 102299, China;
    4. Binxian County Shuiliandong Coal Co., Ltd., Binxian 713500, China

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  • Received Date: July 22, 2018
  • Published Date: October 24, 2019
    Graphical Abstract
    • Abstract
  • Through site investigations on thick coal seam rock burst accidents in recent years and studies on their mechanisms, the division method for rock burst of tunneling face is proposed based on the dynamic structure evolution of surrounding rock, that is, head zone, dynamic evolution zone and stable zone. By studying the mechanism and monitoring characteristics of rock burst in those zones, an academic thought of four-in-one monitoring of “vibration of surrounding rock, stress dynamics of surrounding rock, supporting force of rock anchor bolts and amount of coal drillings” is put forward to give real time warning of rock burst risks in tunneling of extra-thick coal seams, and the revelant methods and indices are obtained. The research results are applied to the monitoring of rock burst in the extra-thick coal seams in the mines in Henan and Shaanxi provinces, and effective warnings are given during excavation, together with timely measures to release the pressure so as to ensure safe mining of working faces.
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    • References (17)
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