土木工程与管理学报2017，Vol.34Issue(1)：49-54,6.
基于支持向量机和子集模拟法的地铁隧道可靠度
Reliability of Subway Tunnel by Subset Simulation Method Combining Support Vector Machine
杨庆年 1李森森1
作者信息
- 1. 南阳理工学院 土木工程学院,河南 南阳 473004
- 折叠
摘要
Abstract
To construct subway tunnels in urban areas brings a heavy demand of safety. Although the traditional safety factor method can reflect engineering safety to some extent, it can not consider the randomness of variables. A modified subset simulation method is introduced to improve the insufficient of the traditional subset simulation method and a solution is presented to solve the problem when there are a number of values equaling to threshold value of performance function. A reliability analysis method combining the subset simulation method with stochastic finite element method and support vector machine is presented, which takes full advantage of support vector machine, overcoming the inaccurate of traditional subset simulation method when the initial sample points is not enough. This paper calculates the failure probability of tunnel lining by the new method and the traditional methods respectively and compares the results. Comparing with the classical sample, this paper verifies the accuracy and the feasibility of the new method, so as to be used as a reliability analysis method for subway tunnel. In this example, the proposed method is more fitting for engineering contexts for a small size of samples.关键词
可靠度/随机有限元/支持向量机/子集模拟法Key words
reliability/stochastic finite element method/support vector machine/subset simulation method分类
交通工程引用本文复制引用
杨庆年,李森森..基于支持向量机和子集模拟法的地铁隧道可靠度[J].土木工程与管理学报,2017,34(1):49-54,6.
