【摘要】 孤岛工作面及其周围巷道附近应力集中程度高,顶板运动剧烈,再加上地质构造的影响,采深较大时,冲击危险程度就很高,很容易引发冲击矿压。文章就是在分析孤岛工作面覆岩运动和煤岩体支承压力的基础之上,对某矿23上07孤岛工作面进行冲击危险分析,划定可能存在冲击矿压的危险区域,提出早期预报;然后通过电磁辐射和钻屑法的监测进行及时预报,并根据预报结果采取相应的防治措施。更多还原

【Abstract】 There were high concentrated stresses at the island mining face and around the mining gateway.The roof movement in the mining face was serious.With the influences of the geological structures,the dangerous degree of the pressure bumping will be very high and the pressure bumping will be easy to be occurred when the mining depth is very deep.Base on the analysis of the roof rock movement and the coal/rock support pressure in the island mining face,the paper analyzed the pressure bumping risks for the No.23 and No.07 island mining faces.The paper classified the danger area of pressure bumping in potential and provided the initial prediction of the pressure bumping.Then the electric magnetic radiation and drilling cuttings were used to monitor and predict the pressure bumping.According to the prediction,the related prevention and control measures were made.更多还原