深部复合顶板煤层巷道围岩控制技术及应用研究

Pointing to the typical surrounding rock of coal roadway with complex roof in deep mine, this paper studied on surrounding rockcontrol technology of large fracture coal roadway in deep mine under compound roof. Through numerical simulation and theory analysis, high pretensioned stress anchor bolt and anchor rope combinedsupporting program was used, and then industryexperiment and mine pressure observation have been done. Mineral pressure observation result shows fracture ofsurrounding rock was controlled within 100mm, the deformation control results of the gateway surrounding rockwere ex-cellent and the surrounding rock structure was stable.