An entropy-based multi-criterion group decision analysis method of selecting the optimum weak-subgrade treatment  

作　　者：罗君君 

机构地区：[1]School of Civil Engineering and Mechanics,Huazhong University of Science and Technology

出　　处：《Journal of Chongqing University》2008年第3期191-197,共7页重庆大学学报（英文版）

基　　金：the National Natural Science Foundation of China (No.50478090);the Key Plan of Science and Technology of Hubei Provincial Communication Department (No.2005jtkj361)

摘　　要：Proper treatment of weak subgrade soil is very important to building a highway of good quality. We proposed an entropy-based multi-criterion group decision analysis method for a group of experts to evaluate alternatives of weak subgrade treatment, with an aim to select the optimum technique which is technically, economically and socially viable. We used fuzzy theory to analyze multiple experts＇ evaluation on various factors of each alterative treatment. Different experts＇ evaluations are integrated by the group eigenvalue method. An entropy weight is introduced to minimize the negative influences of subjective human factors of experts. The optimum alternative is identified with ideal point diseriminant analysis to calculate the distance of each alternative to the ideal point and prioritize all alternatives according to their distances. A case study on a section of the Shiman Expressway verified that the proposed method can give a rational decision on the optimum method of weak subgrade treatment.Proper treatment of weak subgrade soil is very important to building a highway of good quality. We proposed an entropy-based multi-criterion group decision analysis method for a group of experts to evaluate alternatives of weak subgrade treatment,with an aim to select the optimum technique which is technically,economically and socially viable. We used fuzzy theory to analyze multiple experts' evaluation on various factors of each alterative treatment. Different experts' evaluations are integrated by the group eigenvalue method. An entropy weight is introduced to minimize the negative influences of subjective human factors of experts. The optimum alternative is identified with ideal point discriminant analysis to calculate the distance of each alternative to the ideal point and prioritize all alternatives according to their distances. A case study on a section of the Shiman Expressway verified that the proposed method can give a rational decision on the optimum method of weak subgrade treatment.

关 键 词：highway engineering weak subgrade treatment decision making entropy weight group eigenvalue method 

分 类 号：U416.1[交通运输工程—道路与铁道工程]