摘要
为解决煤矿开采中巷道顶板受多次采动影响产生的严重变形和破坏问题,文章研究了顶板预裂爆破切顶卸压技术。通过理论分析、数值模拟和现场试验,得出切顶角度选择对巷道稳定性而言至关重要。在工程应用中,顶板预裂爆破切顶卸压技术显著减小了巷道围岩变形,有效控制了超前支承压力传递,提高了巷道的稳定性和安全性。
In order to solve the problem of serious deformation and damage of roadway roof under the infl uence of multiple mining in coal mining,this paper studies the roof cutting and pressure relief technology for roof pre-splitting blasting.Through theoretical analysis,numerical simulation and fi eld test,it is concluded that the selection of roof cutting angle is very important for the stability of the roadway.In engineering application,the roof cutting and pressure relief technology for roof pre-splitting blasting significantly reduces the deformation of roadway surrounding rock,effectively controls the advanced bearing pressure transfer,and improves the stability and safety of the roadway.
作者
郭伟
GUO Wei(Shanxi Coking Coal Xishan Coal Electricity Dongqu Coal Mine Safety Management Department,Taiyuan 030200,Shanxi,China)
出处
《凿岩机械气动工具》
2025年第2期130-132,共3页
Rock Drilling Machinery & Pneumatic Tools
关键词
切顶卸压
顶板预裂
切顶角度
roof cutting and pressure relief
roof pre-splitting
roof cutting angle
