摘要
基于大型通用软件Abaqus的平台,对饱和土中的打桩效应进行有限元分析。通过圆柱孔扩张的位移边界条件法对桩周土的应力状态和位移状态进行了详细的分析,并讨论了数值模拟过程中土的参数对隆起的影响。数值模拟过程中考虑了大变形、土自重应力和动摩阻力等因素,能够较为真实的反映打桩过程中桩周土体的应力状态。
The finite element analysis is performed to pile-drivirrg effect in saturated soil by use of the large-scale software abaqus. The compacting stress and displacement are analyzed in detail though the displacement boundary condition method of the cylindrical cavity expansion. The ground heave caused by different soil parmneters is given. The large deformation, stress field of soil＇ s dead weight and frictional resistance are taken into account in the process of numerical analysis, so it can give a more real stress state of the proeess of pile-driving.
出处
《低温建筑技术》
2010年第2期101-103,共3页
Low Temperature Architecture Technology
关键词
打桩挤土
柱孔扩张
挤压应力
数值模拟
地面隆起
pile-driving
cavity expansion
compacting stress
numerical analysis
ground heave
