“强卸压、强支护”在防治冲击地压中的应用

Application of "Strong Unloading Pressure,Strong Supporting" in Preventing and Controlling Rock Burst

为了解决在冲击地压区域巷道掘进的安全问题,本着"强卸压、强支护"的原则,杨村煤矿在13190工作面回风巷的掘进过程中分别实施了大直径钻孔卸压、煤层注水、加强支护等措施。施工过程中通过确定合理的参数设置、优化支护参数等,使围岩高应力向煤岩体深部转移,采动高应力得到逐步释放,取得了良好的控制效果。

To solve the safety problem in tunnel excavation in the rock burst area,in the principle of ＂ strong unloading pressure, strong supporting＂ , several measures were respectively applied during the tunneling of 13190 working face in Yangcun Coal Mine,including large diameter borehole pressure relief,coal seam water injection,strengthen supporting,and other measures. In the construction process,reason- able parameters were determined, relevant parameters were also optimized. The application of these method has achieved good effects, high stress of the surrounding rock has migrated to the deep parts of coal rock mass, high mining-induced stress is gradually released.