从影响因素相互作用关系分析岩石边坡的稳定性

从区域上影响岩石边坡稳定性的地质和工程两方面因素相互作用出发建立关系矩阵，进一步得到它们各自权重，并求得岩体不稳定性指数（ＲＭＩＩ）；通过观察实际变形边坡影响料大的地质因素是同现及其作用程度计算出可预报性估值（ＰＲ）。结合实验对两者结果进行了比较。

Interaction of the Factors Affecting Rock Slope Stability

The author set up a relation matrix and its weights and instability index(RMII) of rock mass are obtained according to the interaction of regional factors of geology and engineering affecting rock slope stability. Through observation of the possibility of geology and engineering factors which actually emerged in deformed slope and are relatively of active function, the predictability rating (PR) can be calculated. The engineering examples in Wuqiangxi Hydropower Station show that correlation between regional affecting factors should be clear during the evaluation of slope stability, the combination of analysis of geological theory with field investigation is important for the determination of slope stability and the rock mass instability index(RMII) and the predictability rating(PR) are applicable in the evaluation of regional slope stability.