基于云模型的三维土工网防护边坡侵蚀稳定性综合评价  

Comprehensive Evaluation of Slope Erosion Stability Based on Cloud Model of 3D Geomat Protection

作　　者：王广月[1] 李炯[1] 

机构地区：[1]山东大学土建与水利学院,山东济南250061

出　　处：《数学的实践与认识》2016年第12期88-94,共7页Mathematics in Practice and Theory

基　　金：国家自然科学基金(11372165)

摘　　要：在分析各项影响因素分级标准的基础上,建立了三维土工网护坡侵蚀稳定性的综合评价体系.针对三维土工网边坡侵蚀稳定性分析中不确定性问题,将云模型理论引入到综合评判中,实现了定性与定量的不确定性转换.通过构建前件云发生器和后件云发生器,利用不确定推理,确定各项评价指标的具体分值.借助层次分析法与敏感度分析确定各项评价指标的权重,进而得出综合评价体系的整体得分.工程实例计算结果证实了模型的实用性和有效性,为三维土工网防护边坡侵蚀稳定性的评价提供了一条新的途径.By analyzing of the classification criteria of factors of the erosion stability of slope protection with 3D geomat, the comprehensive evaluation system is established. Considering the problem of uncertainty such as the feature of random and fuzziness in the erosion stability analysis of 3D geomat engineering, the theory of cloud model is introduced into comprehensive evaluation to realize the uncertainty conversion of the qualitative and the quantitative. Through constructing the forward cloud generator and the backward cloud generator, the specific score of the evaluation index is determined by using the uncertain reasoning. The weights of the evaluation indexes are determined with the help of the analytic hierarchy process and sensitivity analysis. Finally, the result of the comprehensive evaluation is obtained by multiplying score with the weight coefficient. The results of engineering examples demonstrate the practicability and effectiveness of the model which provides a new way for the evaluation of the erosion stability of the protection slope of the 3D geomat.

关 键 词：云模型 定性规则发生器 层次分析法 综合评价 

分 类 号：TU43[建筑科学—岩土工程]