边坡岩体质量分级的模糊层次分析

FUZZY ANALYTIC HIERARCHY PROCESS FOR ROCK MASS QUALITY CLASSIFICATION IN SLOPES

边坡岩体质量分级是一个涉及到水文地质、工程地质、开挖条件、岩石力学等诸多因素的复杂地质问题。本文把模糊层次分析法综合应用于边坡岩体质量分级,利用层次分析法划分影响边坡岩体质量各因素的层次结构,用模糊分析法来确定各因素的权重。同时建立了与之相适应的各因素评分准则与边坡岩体质量评分准则。按照研究的成果,对一个具体实例进行了分析并与其他方法进行对比,验证的成果有效性,拓展了岩体质量分级理论的研究思路。

The rock mass quality classification in slopes is a complicated geology problem. It includes many factors including hydrological geology, engineering geology, rock mechanics, and excavation condition. This paper uses the fuzzy analytic hierarchy process （AHP） method for rock mass quality classification in slopes. It uses the AHP method to divided the hierarchy structure of the relevant factors, and uses the fuzzy method to compute the weight of each factor. The evaluation standards for each factor and for slope rock mass quality classification are established simultaneously. At last, the proposed method is illustrated with an example and compared with other methods. The usefulness of the proposed is verified. The proposed method can be considered as an extension of the existing method of rock mass quality classification.