Application of the Hardening Soil model in deep excavation analysis

被引：38
作者：
Teo, P.L. [1 ]
Wong, K.S. [1 ]
机构：
[1] WKS Geotechnical Consultants, 349320, Singapore
来源：
IES Journal Part A: Civil and Structural Engineering | 2012年 / 5卷 / 03期
关键词：
back-analysis; constitutive model; excavation; Hardening Soil model; Mohr-Coulomb soil model; nonlinearity;
D O I：
10.1080/19373260.2012.696445
中图分类号：
学科分类号：
摘要：
The Mohr-Coulomb model (MC) is commonly used in deep excavation analysis for its simplicity. However, it has shortcomings that may produce unrealistic soil behaviour. The Hardening Soil model (HS) is an advanced soil model that is able to generate more realistic soil response in terms of non-linearity, stress dependency and inelasticity. This article highlights some of the shortcomings of the MC model and presents a simplified approach to determine the HS parameters for drained and undrained analysis of deep excavations. Three case studies were back-analysed to validate the application of the HS model for practical excavation analysis. The HS model suffers the same problems as the MC model in using effective stress parameters c′ and φ′ to determine the undrained shear strength. © 2012 Copyright Taylor and Francis Group, LLC.
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页码：152 / 165
页数：13
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