CFG桩复合地基承载力模糊能度可靠性分析方法

在分析CFG桩复合地基承载力计算方法的基础上，根据其影响因素的区间性与模糊性特点，提出了采用三角模糊数表示计算参数取值，建立出CFG桩复合地基承载力模糊分析模型.通过探讨三角模糊数构造方法，建立出CFG桩复合地基承载力计算参数三角模糊确定方法，然后，基于给定安全系数与承载力设计构建功能函数，引入截集理论与区间运算规则，建立CFG桩复合地基承载力模糊能度可靠性分析方法.工程实例分析表明了该方法对CFG桩复合地基承载力进行分析计算的合理性与易操作性.在勘察数据与设计资料有限，不能直接采用概率可靠性分析方法的情况下，该方法为CFG桩复合地基承载能力可靠性分析与评价提供了一种精度较高的方法.

Fuzzy Possibilistic Reliability Analysis Method for Stability of Bearing Capacity of the CFG-piles Composite Foundation

Based on the analysis of bearing capacity calculation method of the CFG-piles composite foundation, according to the interval and fuzzy characteristics of its influence factors, triangular fuzzy numbers were used to express the calculating parameters, and then the fuzzy analysis model of bearing capacity calculation of CFG-piles composite foundation was presented. Triangular fuzzy parameters of bearing capacity of CFG-piles composite foundation were proposed by discussing the method to determine triangular fuzzy numbers. And then, based on the given safety factors and the bearing capacity design method to get performance functions, the level-sets technique and interval number algorithm were introduced to establish the fuzzy possibilistic reliability analysis method for bearing capacity of CFG-piles composite foundation.