Fuzzy Comprehensive Evaluation on Landslides Risk Assessment Induced by Extreme Rainfall
LIU Dong yan,XUE Kai xi ,LI Dong sheng,ZHO bao yun and HU Yan xiang
DOI:10.11835/j.issn.1674-4764.2011.04.015
Received December 26, 2010,Revised , Accepted , Available online July 01, 2015
Volume ,2011,Pages 93-99
- Abstract
The hazard assessment of the highway landslide induced by the extreme rainfall is a complicated systemetic issue.By combining the modified analytic hierarchy process and the fuzzy comprehensive evaluation,all the factors that influence the highway landslide are analyzed.And the comprehensive evaluation index system as well as the danger rating is established.In the process of evaluation,different rainfall's dynamic weighting system is fixed,and then the membership of continuous and discrete index are calculated respectively by using the trapezoid membership function formula and expertise assignment,and finally case study is carried out.It is shown that this method is suitable and rational to evaluate the highway landslide induced by extreme rainfall.