摘要
公路边坡支护方案的评价和选择是一个由造价、工期、技术可靠性、支护效果以及环境协调性等因素组成的复杂系统的综合决策问题。本文在构建边坡支护方案评价指标体系的基础上,采用集值统计法进行指标量化;然后根据信息熵和模糊物元理论构建了评价模型,模糊物元解决了指标信息不相容问题,用信息熵推求指标权重,使得权重的分配更客观、准确,消除了人为人因素的干扰,在确定熵权的过程对已有的信息熵计算进行了修正,增加了模型的适用性和准确性;最后通过某高速公路边坡支护方案的评价算例验证了模型的可行性。
The evaluation and selection of highway side slope supporting schemes is a comprehensive decision problem of complex system that consist of cost,time limit for a project,technology reliability,supporting effect,environmental coordination and so on.First,this paper uses set-valued statistics method to quantify the indexes on the basis of constructing evaluation index system of slope supporting scheme.Then evaluation model is constructed based on the theory of information entropy and fuzzy matterelement.Fuzzy matter-element can solve the problem of information incompatible.Calculating weight with information entropy makes the distribution of the weight more objective and accurate,and eliminates the interference of people factor.In the process of determining entropy,using the modified information entropy increases the applicability and accuracy of the model.Finally verify the feasibility of the model with a evaluation examples of the highway slope supporting scheme.
作者
李志强
王亚平
LI Zhi-qiang;WANG Ya-ping(Weifang University,Weifang 261061,China;Weifang Highway Bureau,Weifang 261041,China)
出处
《潍坊学院学报》
2019年第6期47-50,共4页
Journal of Weifang University
基金
潍坊市科技发展计划项目(2017GX003)。
关键词
集值统计
信息熵
模糊物元
公路边坡
方案评价
set-valued statistics
information entropy
fuzzy matter-element
highway slope
scheme evaluation
