【摘要】 采用KS—1型应力计和钻屑法检测门头沟矿二槽壁式刀柱工作面的爆破卸载效果,获得了增压区和减压区,有效影响范围和时间。爆破工艺等时空参数。使爆破卸载这一防治冲击地压的常规而又有效的措施得到定量化研究。更多还原

【Abstract】 The parameters of time and space, such as the districts of increasing and decreasing pressure, the effective range and time of the influence and the blasting process etc. have gotten accordingly as the unloading effect by blasting in wall knife-pillars face in seam 2 in Men Tou Gou colliery is detected using Type KS-1 stressmeter and method of drilling slack. Therefore, the unloading by blasting which is a convention and effective measure of prevention and remedy rock-bursts can get quantitative research.更多还原