Duncan-Chang非线性地基模型的反演分析

Duncan-Chang非线性地基模型的反演分析 English Version

基金项目: 广东省科技推广计划项目(2007A020300010-3)

1. College of Water Conservancy and Civil Engineering South China Agricultural University Guangzhou 510642 China 2. Dept. of Civil Engineering South China University of Technology Guangzhou 510640 China

摘要: 在弹性半空间Boussinesq理论解基础上,推导得到了地基中的应力解,并给出了用应力表示的地基沉降计算公式。对于给定的q–s曲线,按照最小二乘法,用解析方法对Duncan-Chang模型参数进行反演分析,工程算例显示了该方法的正确性和实用性。反演得到的地基参数能很好地反映现场沉降试验结果。
- Duncan-Chang模型 /
- 非线性 /
- 反演分析
Abstract: Based on the Boussinesq solution of elastic semi-infinite ground, the stress solution of ground is obtained, and the calculation formula of ground settlement is expressed by the stress solution. As for some given q-s curves, the back analysis is used to analyze parameters of Duncan-Chang model based on the least square method. It is proven that the present method is accurate and practicable, and the parameters obtained by back analysis agree well with the results of settlement experiment.
- Duncan-Chang model /
- nonlinearity /
- back analysis