水文地质工程地质2011,Vol.38Issue(2):39-45,51,8.
改进的水电边坡岩体稳定性分级法
Modified hydropower slope rock mass stability rating system
摘要
Abstract
In order to overcome the defects in the existing modified mass rating system originated from slope rock mass rating (SMR) system, a more rational correction model was adopted to establish a modified Chinese hydropower slope rock mass rating (M-CSMR) system based on thirty six hydropower slopes.The coefficients of slope types were used to take the place of excavation factor to comprehensively take into account the influences of excavation, water erosion and scour on rock mass stability; the influence of slope height on rock mass stability was introduced into this system, and its grading and rating principle were given; the weights of factors in the SMR system were re-adjusted.Compared with rock mass rating (RMR) system, slope rock mass rating (SMR) system and Chinese slope rock mass rating (CSMR) system, the M-CSMR system's evaluation results are closer to the empirical rating based on safety of factor, the prediction results are better, the maximum absolute error, the mean absolute error and the residual standard deviation are all smaller, thus MCSMR is a better hydropower slope rock mass rating system.关键词
边坡岩体分级/边坡类型/坡高分级/M-CSMR法分类
建筑与水利引用本文复制引用
张菊连,沈明荣..改进的水电边坡岩体稳定性分级法[J].水文地质工程地质,2011,38(2):39-45,51,8.基金项目
上海市重点学科建设资助项目(B308) (B308)