Unified analytical solutions for cylindrical cavity expansion in saturated soil under large deformation and undrained conditions

被引：0

作者：

Qi, Chunming ^{[1
]}

Mo, Bin ^{[2
]}

Nie, Chunlong ^{[1
]}

Zou, Jinfeng ^{[3
]}

机构：

[1] School of Urban Construction, University of South China, Hengyang 421001, China

[2] China Construction Fifth Engineering Division Co. Ltd., Changsha 410004, China

[3] Central South University, Changsha 410004, China

来源：

Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering | 2009年 / 28卷 / 04期

关键词：

Expansion - Pressure distribution - Soils - Water - Soil mechanics - Pore pressure;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The strain distribution around the cylindrical cavity is classified into plastic zone and elastic zone. The theories of small deformation and large deformation are adopted in the elastic zone and plastic zone respectively. According to the stress equilibrium equation and conditions of stress and strain, the stress distribution in two zones, radius of the plastic, limited cavity expansion pressure and excess pore pressure are obtained considering large deformation and undrained conditions. The results agree well with those of the in-situ test, which proves that the proposed theory has certain reference value. The calculations show that with the increase of parameter b, the limited cavity expansion pressure increases nonlinearly while the excess pore water pressure is on the contrary.

引用

页码：827 / 833