Back analysis of Duncan-Chang nonlinear foundation model

HE Chunbao; SHEN Jianhua; CAI Jian; CHEN Cunen

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Volume 31 Issue 4

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Chinese Journal of Geotechnical Engineering > 2009 > 31(4): 634-638.

HE Chunbao, SHEN Jianhua, CAI Jian, CHEN Cunen. Back analysis of Duncan-Chang nonlinear foundation model[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(4): 634-638.

Citation:

HE Chunbao, SHEN Jianhua, CAI Jian, CHEN Cunen. Back analysis of Duncan-Chang nonlinear foundation model[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(4): 634-638.

Citation:

HE Chunbao, SHEN Jianhua, CAI Jian, CHEN Cunen. Back analysis of Duncan-Chang nonlinear foundation model[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(4): 634-638.

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Back analysis of Duncan-Chang nonlinear foundation model

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

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Published Date: April 14, 2009

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Abstract

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