On HSS model parameters for Shanghai soils with engineering verification

GU Xiao-qiang; WU Rui-tuo; LIANG Fa-yun; GAO Guang-yun

doi:10.16285/j.rsm.2020.0741

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On HSS model parameters for Shanghai soils with engineering verification

更新时间：2026-06-25

- On HSS model parameters for Shanghai soils with engineering verification
- Vol. 42, Issue 3, Pages: 833-845(2021)
- 作者机构：
  
  1. 同济大学地下建筑与工程系,上海,200092
  2. 同济大学岩土与地下工程教育部重点实验室,上海,200092
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2020.0741
  CLC： TU433
- Online First：17 March 2021，
  
  Published：2021
- 稿件说明：
移动端阅览
GU Xiao-qiang, WU Rui-tuo, LIANG Fa-yun, et al. On HSS model parameters for Shanghai soils with engineering verification[J]. 2021, 42(3): 833-845.
DOI：

GU Xiao-qiang, WU Rui-tuo, LIANG Fa-yun, et al. On HSS model parameters for Shanghai soils with engineering verification[J]. 2021, 42(3): 833-845. DOI： 10.16285/j.rsm.2020.0741.

摘要

小应变硬化（HSS）模型能较合理考虑土体小应变阶段的非线性、应力相关等特性，在隧道和基坑开挖等变形数值计算中得到了广泛的应用，但目前对模型整套参数的合理取值尚缺乏系统地研究。剖析了HSS模型各参数的意义和对应的试验方法，并基于大量室内和现场试验数据建立了上海土体HSS模型主要参数与土体孔隙比的经验关系，为实际工程利用勘察报告方便且较准确地确定HSS模型参数提供了合理途径。通过多个深基坑工程的数值分析表明，采用现场试验确定的小应变初始剪切模量时，围护墙水平位移计算值和实测值基本吻合，表明提出的上海土体HSS模型整套参数取值方法有很好的普适性和工程实用价值，也为其他地区建立类似的HSS模型参数取值方法提供了借鉴。

Abstract

The hardening strain model with small strain (HSS) can appropriately consider the nonlinear and stress-dependent behavior of soils at small strain range. Thus

it is widely used for deformation predictions during pit and tunnel excavations. However

currently there is a lack of systematic study on how to reasonably and conveniently determine all the model parameters. This paper firstly introduces the definitions of all the HSS model parameters and their measurements. Based on the statistics of laboratory and field test data

the relationships between the model parameters and the void ratio of Shanghai soils are proposed

which can be conveniently used in engineering practice. Finally

the HSS model with parameters determined by the proposed method is used to analyze the deformation in four excavation cases. The results show that with the field measured small strain shear stiffness

the calculated lateral deformations of the retaining wall agree well with the measurements. It indicates that the proposed method for determining the HSS model parameters is appropriate and it can provide references for similar projects in Shanghai and similar regions.

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