【摘要】 本文根据观测实例论述了声发射活动与冲击地压的关系,井论述了用声发射技术来确定应力集中区.确认声发射观测钻屑法和顶板下沉观测的综合评判是预测冲击危险性的重要方法.更多还原

【Abstract】 By means of some observational examples, this paper discusses the relation of acoustic emission activity to the coal burst and the use of the acoustic emission technique to determine the region of stress concentration. It is believed to be an important method of predicting the hazard of coal burst carrying out synthetical judgement by means of acoustic emission observations, the drilling method and roof descent observations.更多还原