千米深井高应力破碎围岩控制技术 |
王成龙,侯成录,杨尚欢,赵兴东 |
Control Technology of High Stress Broken Surrounding Rock in Kilometer Deep Shaft |
Chenglong WANG,Chenglu HOU,Shanghuan YANG,Xingdong ZHAO |
图6 巷道围岩应力状态(未支护) |
Fig.6 Stress state of surrounding rock in roadway(unsupported) |