Simplified 3D Finite-element Analysis on Soft Foundation Improved by Vacuum Preloading
According to the deformation characteristics of large area soft foundation improved by vacuum preloading, the simplified method considering the smear effects of sand drains was adopted, and the influence induced by the size of element on the calculational consolidation degree was discussed, then the appropriate meshing-element method was introduced. A finite-element program (ADINA v.8.3) coupled with Biot consolidation theory was employed to simulate 3D multidrain analysis, which considered the coupling between seepage and deformation and the soil as the porous media, then the numerical predictions were compared with the field data. It is found that the predictions obtained with the simplified method agree well with the field observations, and much caiculational workload is saved, which can also provides an acceptable accuracy for multidrain system analysis
vacuum preloading 3D finite-element smear effects simplified method consolidation
CHEN Pingshan DONG Zhiliang
Engineering Research Institute Co., Ltd. of CCCC Fourth Harbour Engineering Co., Ltd., China, 510240 Engineering Research Institute Co., Ltd. of CCCC Fourth Harbour Engineering Co., Ltd., China, 510240
国际会议
成都
英文
830-837
2010-10-10（万方平台首次上网日期，不代表论文的发表时间）