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
表2 岩体分级结果
Table 2 Rock mass classification results
位置QRMR稳定性GSI数值
数值级别描述数值级别描述
-1 005 m中段1.50很差—差40.25一般(5 m跨度)7 d35