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Coal Engineering ›› 2023, Vol. 55 ›› Issue (6): 60-66.doi: 10.11799/ce202306011

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Classification of Coal Bump Types and Prevention Measures in Inner Mongolia and Shaanxi Mining Area

  

  • Received:2022-08-22 Revised:2023-02-10 Online:2023-06-20 Published:2023-06-30
  • Contact: LI Haitao E-mail:catchyou@qq.com

Abstract:

The difference of coal mine geological occurrence and mining conditions makes it difficult to find a unified occurrence mechanism and prevention strategy for coal bump, and a reasonable classification of coal bump mines will be a feasible path to support the effective development of anti-coal bump work in the engineering site. Based on a large number of field investigations, this paper analyzes the structural characteristics of each coal field in Inner Mongolia and Shaanxi mining area and its influence on coal bumps. It is concluded that the Zhungeer coal field, Dongsheng coal field, Zuozishan coal field, Shanghaimiao coal field and Shanbei jurassic period coal field Inner Mongolia and Shaanxi mining area face a different degree of risk of rock burst. Considering the occurrence mechanism of coal bump, disaster location, load (force source), mining environment and other factors, typical coal bump mines are divided into gravity type, structural type, roof type and coal pillar type. The classification method of coal bump mine types in Inner Mongolia Shaanxi deep mining area is put forward. Combined with the formation mechanism of each type of rock burst, the corresponding prevention and control key points are clarified. clear the corresponding prevention and control points. This provides a reliable means to support the design of specific measures for the mine's anti-scour work, and the engineering practice of coal bump prevention based on it has achieved good results.

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