岩土力学2012，Vol.33Issue(4)：1117-1122,6.
土体强度各向异性基坑的抗隆起稳定性分析
Analysis of stability against upheaval for foundation pit with anisotropic soil strength
蔡袁强 1王佳琦 2孙宏磊1
作者信息
- 1. 浙江大学软弱土与环境土工教育部重点实验室,杭州310058
- 2. 温州大学建筑工程学院,浙江温州325035
- 折叠
摘要
Abstract
Natural soil is usually nonhomogeneity and anisotropy. However, the calculation methods of stability against upheaval which are commonly used are applicable to isotropic and homogeneous soils. Considering the failure criterion of nonhomogeneous nonlinear anisotropic rocks and the primary anisotropy of soil, assuming Prandtl failure mode, analysis of stability against upheaval is given using the model of foundation pit bearing capacity. According to capacity calculated by the slip line method and using finite difference method combined with boundary conditions, the related calculation program is compiled; then stability coefficient against upheaval is defined. The results show that the larger the anisotropy ratio of soil strength is, the smaller the safety factor is. And with the increasing of internal frictional angle and the retaining wall insertion ratio, the safety factor will be enhanced significantly.关键词
原生各向异性/抗隆起/承载力/滑移线法Key words
primary anisotropy/ against upheaval/ bearing capacity/ slip line method分类
建筑与水利引用本文复制引用
蔡袁强,王佳琦,孙宏磊..土体强度各向异性基坑的抗隆起稳定性分析[J].岩土力学,2012,33(4):1117-1122,6.
