Reliability Analysis of Foundation Pit by Improved Response Surface Method

Jiang Zhou; Jing Cao; Yu He; Jie Song

doi:10.4028/www.scientific.net/AMM.147.197

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 147Reliability Analysis of Foundation Pit by Improved...

Reliability Analysis of Foundation Pit by Improved Response Surface Method

Abstract:

Lacking of explicit limit state function (LSF) will result large quantities of computational efforts for a FEAM based structural reliability analysis. An improved response surface (RS) method is proposed to analyze the failure probability of foundation pit through combining uniform design (UD) and non-parametric regression (NPR). Deferent levels of design parameters are first delicately selected according to UD and then FEAM is used to analysis corresponding pit response parameters including maximum lateral displacement of wall, settlement of ground, safety factor of overall stability, safety factors of against overturning, heave and piping. The RS relationship is then established through NPR based on inputs and responses. At last, a direct Mont Carlo Simulation is carried out to obtain the probability density function of response parameters.

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Periodical:

Applied Mechanics and Materials (Volume 147)

Pages:

197-202

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.147.197

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Online since:

December 2011

Authors:

Jiang Zhou, Jing Cao, Yu He, Jie Song

Keywords:

Non-Parametric Regression, Probability, Response Surface, Uniform Design Uniform Design

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