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Coal Engineering ›› 2023, Vol. 55 ›› Issue (10): 85-91.doi: 10.11799/ce202310015

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Study on Prevention Technology of Rock Burst under Influence of Spatial Coal Pillar

  

  • Received:2023-03-20 Revised:2023-07-16 Online:2023-10-20 Published:2025-04-08
  • Contact: Bin Xu E-mail:china0704xubin@163.com

Abstract:

In order to explore the prevention and control technology of rock burst under the influence of spatial coal pillar, taking the Y396 and Y394 working faces of Tangshan Mine as the background, the research methods of theoretical analysis, numerical simulation, field application and test are combined to systematically analyze the main control factors of rock burst induced by working face, determine the prevention and control technology of rock burst under the influence of spatial coal pillar, and test the effect after field implementation. The results show that the main controlling factors of rock burst induced by Y396 and Y394 working face during mining are the irregular coal pillars left by the upper 5 coal seam and the irregular coal pillars of the coal seam. Through Flac3 D software, three abnormal stress rising areas of Y394 working face during mining are obtained. The main prevention and control areas are determined, and the corresponding prevention and control technologies are implemented. Through the drilling cuttings method, it is determined that the risk of rock burst in the area has been eliminated.

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