中南大学学报（自然科学版）2012，Vol.43Issue(9)：3582-3588,7.
软土地区城市深基坑支护方案优选的模糊层次分析法
A fuzzy AHP approach to select supporting schemes for city foundation pit in soft soil
摘要
Abstract
To select the rational supporting schemes of city foundation pit in soft soil region, a fuzzy analytic hierarchy process (AHP) method for making decision was proposed. Based on the analysis and investigation on factors affecting the supporting schemes of city foundation pit in soft soil region, 4 first grade indexes and 14 second grade indexes were conducted to establish the index system for synthesis evaluating project. The AHP method was used to construct the hierarchy relationship with the influence factors and to set up their hierarchy structures, and then the weight of every influence factors was computed based on the judge matrix fuzzy sets method. After all grades were acquired by means of geological investigations, theoretical analysis and laboratory or field tests, the matrix of the membership comparative degree was calculated by iterative logical arithmetic. A synthetic assessment model was made to estimate the supporting schemes of foundation pit. The results show that the comparative synthetic superior degrees for the supporting scheme of a foundation pit in Shanghai are 0.596, 0.283 and 0.619 respectively according to this method, and the third location becomes the best. The results show distinctly that the fuzzy-AHP method is valid and feasible to select the supporting scheme for city foundation pit in soft soil region.关键词
软土地区/城市深基坑/支护方案优选/层次分析法/模糊数学Key words
soft soil region/city foundation pit/selection of supporting schemes/analytic hierarchy process (AHP)/fuzzy mathematics分类
建筑与水利引用本文复制引用
周罕,曹平..软土地区城市深基坑支护方案优选的模糊层次分析法[J].中南大学学报（自然科学版）,2012,43(9):3582-3588,7.基金项目
国家自然科学基金资助项目(4080206) （4080206）
