Evaluation of toppling rock slopes using a composite cloud model with DEMATEL–CRITIC method  

作　　者：Huan-ling Wang Xu-fei Zhao Hong-jie Chen Kui Yi Wei-chau Xie Wei-ya Xu 

机构地区：[1]Research Institute of Geotechnical Engineering,Hohai University,Nanjing 210098,China [2]Huaneng Lancang River Hydropower Ltd.,Technology R&D Center,Kunming 650214,China [3]Department of Civil and Environmental Engineering,University of Waterloo,Waterloo,Ontario N2L 3G1,Canada

出　　处：《Water Science and Engineering》2023年第3期280-288,共9页水科学与水工程（英文版）

基　　金：supported by the Natural Science Foundation of China(Grant No.51939004);the Fundamental Research Funds for the Central Universities(Grant No.B210204009);the China Huaneng Group Science and Technology Project(Grant No.HNKJ18-H24).

摘　　要：Safety evaluation of toppling rock slopes developing in reservoir areas is crucial. To reduce the uncertainty of safety evaluation, this study developed a composite cloud model, which improved the combination weights of the decision-making trial and evaluation laboratory (DEMATEL) and criteria importance through intercriteria correlation (CRITIC) methods. A safety evaluation system was developed according to in situ monitoring data. The backward cloud generator was used to calculate the numerical characteristics of a cloud model of quantitative indices, and different virtual clouds were used to synthesize some clouds into a generalized one. The synthesized numerical characteristics were calculated to comprehensively evaluate the safety of toppling rock slopes. A case study of a toppling rock slope near the Huangdeng Hydropower Station in China was conducted using monitoring data collected since operation of the hydropower project began. The results indicated that the toppling rock slope was moderately safe with a low safety margin. The composite cloud model considers the fuzziness and randomness of safety evaluation and enables interchange between qualitative and quantitative knowledge. This study provides a new theoretical method for evaluating the safety of toppling rock slopes. It can aid in the predication, control, and even prevention of disasters.

关 键 词：Toppling rock slope Safety evaluation Composite cloud model DEMATEL CRITIC Huangdeng Hydropower Project 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]