摘要
本文以龙滩煤矿3112南工作面为工程背景,设计沿空留巷护巷方案,并用数值模拟和现场试验相结合的方法进行研究。基于数值模拟结果可知:锚索(杆)网加钢带和槽钢支护能有效地维护巷道的稳定,控制巷道围岩的变形;采用混凝土砌墙切顶的巷旁支护方式进行留巷时,围岩稳定性比较好。结合现场试验,最终验证了该技术现实可行且效果良好。
Based on the 3112 working face of Longtan mine, designing the supporting schemes of gob-side entry retaining, using combined method of the numerical analysis and the field measurement to research.Through the numerical simulation analysis,wo can know that the an- chor mesh combine with beam-rope can effectively maintain the stability of the roadway, and control the deformation of surrounding rock. When using the roadside supporting with concrete brick wall cutting roof to retain roadway, the stability of surrounding rock is good. Combin- ing the field test, it is finally proved that this technology is feasible and effective.
出处
《煤矿现代化》
2015年第6期72-75,共4页
Coal Mine Modernization
关键词
沿空留巷
混凝土砌碹墙
锚网索加槽钢
巷旁切顶
数值模拟
gob-side entry retaining
concrete brick wall
anchor mesh and beam-rope supporting
roadway roof cutting
numerical analysis
