Risk Analysis of Foundation Pit with Small Sample Datum Based on Bootstrap Method
The computation cost and the limitedgeotechnical drill information are two difficulties often encountered during a probability based analysis of foundation pit. A new response surface (RS) method and the bootstrap simulation (BS) method are introduced to overcome these problems. The input parameters for constructing the RS are firstly prepared through uniform design (UD) and after obtaining the outputs through finite element method (FEM), the inputs and outputs are regressed through a iton-parameter regression (NPR) to achieve RS, Then, based on the RS, the BS is carried out directly basing on the samples provided by drill datum. A practical engineering is analyzed. The results show that RS together with BS provide a useful analysis tool for risk analysis of foundation pit directly using field drill information instead of using hypthetical probability distributions.
instead of using hypothetical probability distributions. bootstrap response surface small sample foundation pit
Hongwei Zheng Zhigang Song Jing Cao
Faculty of Civil Engineering Kunming University of Science and Technology Kunming, China
国际会议
三峡
英文
2649-2652
2012-05-18（万方平台首次上网日期，不代表论文的发表时间）