基于综合决策云模型的围岩稳定性分级方法研究

周科平,侯霄峰,林允

Research on Classification Method of Surrounding Rock Stability Based on Comprehensive Decision Cloud Model

Keping ZHOU,Xiaofeng HOU,Yun LIN

表1 围岩稳定性指标分级标准

Table 1 Classification standard for evaluation of indexes for stability of surrounding rock

类别 Rc/MPa Kv RQD/% K1 K2 Ⅰ >200 1.00~0.75 90~100 0~0.2 0~0.1 Ⅱ 100~200 0.50~0.75 75~90 0.2~0.4 0.1~0.2 Ⅲ 50~100 0.30~0.50 50~75 0.4~0.6 0.2~0.4 Ⅳ 25~50 0.15~0.30 25~50 0.6~0.8 0.4~0.5 Ⅴ 0~25 0~0.15 0~25 0.8~1.0 >0.5