摘要
余吾煤业北风井西翼采区沿东西方向布置有五条平行大巷,针对大巷群之间的应力叠加及受两侧工作面采动影响问题,通过边界元程序Examine2D模拟分析大巷群围岩应力演化规律,提出了注浆加固和注水压裂综合控制技术。经在西翼胶带运输大巷现场工业性应用试验,并对巷道表面位移和锚索受力的监测与对比,得出此技术能有效控制巷道围岩的稳定性。
Yuwu mine shaft North West Wing mining area an east - west direction. There are five parallel tunnels in between the road-way group stress superposition and by both sides of the face mining power disturbance problem, boundaiy element program Examine^2D based on Simulation Analysis of surrounding rock roadway group stress evolution, and puts fomard the Comprehensive Grouting Rein-forcement and control water fracturing method, field experiments were carried out in the West Wing belt transport roadway and by the mine pressure observation and surface displacement of cable force monitoring results, the integrated control method to control the stabil-ity of roadway effectively.
出处
《煤》
2017年第6期13-15,31,共4页
Coal
关键词
煤层大巷群
Examine^2D模拟
注浆加固
注水压裂
roadway group of coal seam
Examine^2D simulation
water injection fracturing
mine pressure observation
