Reliability of Foundation Pile Based on Settlement and a Parameter Sensitivity Analysis

被引：4
|
作者：
Zhang, Shujun [1 ,2 ]
Zhong, Luo [1 ]
Xu, Zhijun [3 ]
机构：
[1] Wuhan Univ Technol, Sch Civil Engn & Architecture, Wuhan 430070, Peoples R China
[2] Nanyang Inst Technol, Sch Civil Engn, Nanyang 473004, Peoples R China
[3] Henan Univ Technol, Sch Civil Engn & Architecture, Zhengzhou 450001, Peoples R China
来源：
MATHEMATICAL PROBLEMS IN ENGINEERING | 2016年 / 2016卷
基金：
中国国家自然科学基金;
关键词：
SERVICEABILITY LIMIT STATE; BEARING CAPACITY;
D O I：
10.1155/2016/1659549
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Based on the uncertainty analysis to calculation model of settlement, the formula of reliability index of foundation pile is derived. Based on this formula, the influence of coefficient of variation of the calculated settlement at pile head, coefficient of variation of the permissible limit of the settlement, coefficient of variation of the measured settlement, safety coefficient, and the mean value of calculation model coefficient on reliability is analyzed. The results indicate that (1) high reliability index can be obtained by increasing safety coefficient; (2) reliability index will be reduced with increasing of the mean value of calculation model coefficient and coefficient of variation of the permissible limit of settlement; (3) reliability index will not always monotonically increase or decrease with increasing of coefficient of variation of the calculated settlement and coefficient of variation of calculation model coefficient. To get a high reliability index, coefficient of variation of calculation model coefficient or value range of coefficient of variation of calculation model coefficient should be determined through the derived formula when values of other independent variables are determined.
引用
收藏
页数：7
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