Large-strain nonlinear consolidation model for soil layer with impeded drainage boundaries

被引：0

作者：

Pu H. ^{[1
]}

Li Z. ^{[1
]}

Song D. ^{[1
]}

Li L. ^{[1
]}

机构：

[1] School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan

来源：

Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition) | 2019年 / 47卷 / 09期

关键词：

Impeded drainage boundaries; Large-strain; Numerical analysis; One dimensional nonlinear consolidation; Parametric analysis;

D O I：

10.13245/j.hust.190919

中图分类号：

学科分类号：

摘要：

IBC model was developed for the large-strain nonlinear consolidation of saturated soil layer with impeded drainage boundaries.The IBC model was verified by comparing against existing small-strain linear and nonlinear consolidation models with impeded drainage boundaries, and excellent agreement was obtained.Then parametric studies were conducted on several important parameters, including magnitude of strain, impeded boundary parameter and specific gravity of soil solids.The results show that large strains will decrease the length of the drainage path and, thus, accelerate the consolidation process, relative to small strain.The impeded boundary parameter of 0.01 is the threshold value between impervious and impeded boundary condition, whereas the impeded boundary parameter of 100 is the threshold value between impeded and permeable boundary condition.Specific gravity of soil solids has an important influence on the consolidation process, especially for soil with nonlinear constitutive relationships. © 2019, Editorial Board of Journal of Huazhong University of Science and Technology. All right reserved.

引用

页码：107 / 112

页数：5

共 6 条

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