Jiangsu Coal Mine Rockburst Prevention Engineering Technology Research Center
Production Dispatch Command Center, Xuzhou Coal Mining Group Corp. , Ltd.
School of Resources and Geosciences, China University of Mining and Technology
Key Laboratory of Deep Coal Resource Mining of Ministry of Education, China University of Mining and Technology
Jiangsu Vocational Institute of Architectural Technology

以冲击地压矿井张双楼煤矿临近井田发生的天然地震(2.8级)为工程背景,通过矿井SOS微震监测、应力监测及震动波CT反演等多种技术手段,对该次地震对矿井冲击危险影响进行了研究。结果表明:矿井微震监测系统对于临近井田的天然弱震具有一定的响应能力,但震源位置在微震监测网范围外,解算的震源位置较多、位置误差较大;矿井微震监测、应力监测和震动波CT反演数据时间序列,表明弱地震发生前后冲击危险监测数据整体趋势平稳,没有发生显著突变,说明本次天然地震对矿井回采工作面冲击危险性未产生明显影响。分析结果对于深入研究临近井田天然地震对矿井采掘工作面冲击危险影响具有一定的指导意义,也为后续矿井冲击危险监测技术发展、地震与矿井冲击地压的关系的研究提供了借鉴。

Taking the weak earthquake near Zhangshuanglou Coal Mine as the engineering background, the rock burst risk affected by earthquake was analyzed 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 was outside the range of the microseismic monitoring network, there were many calculated source positions and the positioning error was large. The overall trend of the monitoring data of mine microseismic monitoring, stress monitoring and seismic wave CT inversion before and after the earthquakes were stable, which indicated that the weak earthquakes near the mine field had no significant impact on the mine rockburst risk. The results can provide guidance for the in-depth understanding of the impact of the natural earthquake near the mine field on the rockburst risk in coal mine, and references for the follow-up study of the development of the rockburst monitoring technology and the relationship between the earthquake and the mine rock burst.

国家自然科学基金项目(51974302);国家重点研发计划项目(2022YFC3004605)

何 岗, 贺 虎, 杨增强. 临近井田弱地震对矿井冲击危险性影响分析研究 [J]. 煤炭工程, 2023, 55(8):114-118.