Analysis of one-dimensional consolidation of double-layered viscoelastic ground

被引：0

作者：

Liu Jia-cai ^{[1
]}

Zhao Wei-bing ^{[2
]}

Zai Jin-min ^{[1
]}

Wang Xu-dong ^{[1
]}

机构：

[1] Nanjing Univ Technol, Coll Civil Engn, Nanjing 210009, Jiangsu, Peoples R China

[2] Nanjing Hydraul Res Inst, Nanjing 210024, Jiangsu, Peoples R China

来源：

ROCK AND SOIL MECHANICS | 2007年 / 28卷 / 04期

关键词：

double-layered ground; one-dimensional consolidation; rheological model; soft clay; viscoelasticity;

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Soft clay has viscoelastic characteristics, which affects the consolidation and deformation of the soil. Based on the existing one-dimensional consolidation theory of saturated clays with generalized Voigt model, the generalized solution expressions of the two layers are obtained. According to the pore pressure and water flow continuity conditions at the conjunction plane of two layers and the boundary conditions at the top and bottom surfaces, the orthogonal relation of the system is presented. The unknown value in the generalized solution expressions can be determined by using continuity conditions, boundary conditions and the orthogonal relation. Generalized Voigt model can reflect the stress-strain relation of the soil at different phases; so the solutions can be applied extensively. A case of double-layered viscoelastic ground is analyzed where Merchant rheological model is applied. It is shown that the viscoelastity decreases the consolidation velocity of the soil. The more deep the soil element locate, the more its consolidation velocity is affected.

引用

页码：743 / 746

页数：4