A MODIFIED METHOD FOR 3D FINITE ELEMENT ANALYSIS OF SAND GROUND IMPROVED BY VACUUM PRELOADING
SHI Hongyan1，BAI Lin1，LI Wei2
(1. School of Civil and Transportation Engineering，Guangdong University of Technology，Guangzhou，Guangdong 510006，China；
2. Guangdong Province Nanyue Traffic Investment and Construction Co.，Ltd.，Guangzhou，Guangdong 510101，China)
Abstract：Based on the characteristics of sand ground improved by vacuum preloading，a modified method for three-dimensional(3D) finite element(FE) analysis of the ground is presented. The method uses the superposed elements in replace of the different nodes of displacements and pore pressures associated with homogenized ground surface，and thus the element numbers of nodal displacements and pore pressures can be reduced and effectively determined. As a result，computer memory resources can be significantly saved，and ill-conditioned stiffness matrix can be properly addressed.
史宏彦1，白 琳1，李 伟2. 真空预压砂井地基三维有限元分析的一种改进算法[J]. 岩石力学与工程学报, 2014, 33(sl): 2936-2941.
SHI Hongyan1，BAI Lin1，LI Wei2. A MODIFIED METHOD FOR 3D FINITE ELEMENT ANALYSIS OF SAND GROUND IMPROVED BY VACUUM PRELOADING. , 2014, 33(sl): 2936-2941.
2014, Vol. 33 
