中文摘要：

为研究顶板、底板和煤层相对较硬的“三硬”煤层工作面微震活动规律,以忻州窑煤矿微震监测系统为工程背景,针对震源分布特征、微震能量及频次与采动的关系、典型冲击矿压微震信号特性分析等方面进行研究,揭示工作面微震活动总体规律,特别是冲击矿压前兆的微震效应,为建立“三硬”冲击矿压微震预测技术、评价矿井冲击矿压提供依据,具有一定理论意义与实用价值.

英文摘要：

The micro-seismic activity law of the working face in the hard celling, hard floor and hard seam (known as“three hard”) coal mine was studied. The micro-seismic monitoring system of Xinzhou coal mine was taken as the engineering example. The relation among distribution features of the seismic source intensity, seismic energy, frequency and mining was studied. And the characteristics of the micro-seismic signal of typical rock-burst were analyzed. The general law of the micro-seismic activity in the working face, especially the micro-seismic effect prior to the rock-burst was revealed. The study may provide a basis for setting up the micro-seismic prediction and evaluation methods for the“three hard”coal seam rock-burst. It has theoretical significance and practical value.