动压掘进巷道围岩应力分布及支护技术研究

Study on Stress Distribution and Support Technology of Surrounding Rock in Dynamic Pressure Tunneling Roadways

拟在动压巷道切顶卸压技术的基础上,将巷道周围受高应力释放或转移至其他区域,使其不对巷道围岩产生变形、破坏,可以有效压裂巷道煤柱深部围岩,从而将支承压力消除或转移,使巷道处于低地应力区,降低巷道支护难度,保证矿井安全生产。

The stress on the surrounding rock was released or transferred to other areas on the basis of top cutting and pressure relief technology in dynamic pressure tunneling roadways, making it impossible to bring about deformation and destruction and effectively fracturing the deep surrounding rock of coal pillar in roadways. In this way, the abutment pressure was eliminated or transferred, locating the roadway in the low crustal stress areas, so as to decrease the difficulty in roadway support and ensure the safe production of mines.