Constitutive Model of Soft Soil After Considering Small Strain Stiffness Decay Characteristics

被引：0

作者：

Zhang S. ^{[1
]}

Ye G. ^{[1
]}

Zhen L. ^{[2
]}

Li M. ^{[1
]}

Chen C. ^{[1
]}

机构：

[1] Department of Civil Engineering, Shanghai Jiao Tong University, Shanghai

[2] Shanghai Road and Bridge (Group) Co., Ltd., Shanghai

来源：

Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University | 2019年 / 53卷 / 05期

关键词：

Constitutive model; Nonlinearity; Over consolidation; Small strain; Soft soil; Structure;

D O I：

10.16183/j.cnki.jsjtu.2019.05.004

中图分类号：

学科分类号：

摘要：

Although the Shanghai soil unified model can describe the influence of soil structure and over consolidation, it cannot simulate the highly nonlinear modulus in small strain range. In this paper, combined with the classical theory of small strain stiffness, a small strain constitutive model based on Shanghai soil unified model is developed. The small strain constitutive model can describe the change rule of soil stiffness in the small strain range. The capability of the model is checked by the triaxial compression test results on Shanghai shallow soil. The results show that small strain constitutive model can describe that soil stiffness in the small strain range has initial high modulus and the non-linear attenuation characteristics, and the influence of structure and over consolidation on soil can also be reproduce well by the model. © 2019, Shanghai Jiao Tong University Press. All right reserved.

引用

页码：535 / 539

页数：4

共 9 条

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