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Coal Engineering ›› 2023, Vol. 55 ›› Issue (8): 114-118.doi: 10.11799/ce202308021

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Study on the influence of weak earthquake for rock burst risk in adjacent mine field

  

  • Received:2022-10-19 Revised:2023-03-28 Online:2023-08-20 Published:2025-04-08
  • Contact: He He GengGeng E-mail:hegang1975@126.com

Abstract:

Taking the weak earthquake near Zhangshuanglou coal mine as the engineering background, the rock burst risk affected by earthquake is analyzed in detail through SOS microseismic monitoring, stress monitoring and seismic wave CT inversion and other technical means. The results show that the mine microseismic monitoring system has a certain response ability to weak earthquakes near the mine field, but the source position is outside the range of the microseismic monitoring network, and the calculated source positions are more and the positioning position error is larger. The overall trend of the monitoring data of mine microseismic monitoring, stress monitoring and seismic wave CT inversion before and after the earthquakes are stable, which indicate that the weak earthquakes near the mine field have no significant impact on the mine rockburst risk. The results of this paper have significant guidance for the in-depth understand of the impact of the natural earthquake near the mine field on the rockburst risk in coal mine, and also provide a reference for the follow-up study of the development of the rockburst monitoring technology and the relationship between the earthquake and the mine rock burst.

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