地震工程学报Issue(z2)：191-196,6.DOI:10.3969/j.issn.1000-0844.2015.增刊2.0191
饱和粉土复合地基数值模拟
Numerical Simulation of the Saturated Silt Composite Foundation
摘要
Abstract
Using numerical analysis and comparison of three types of composite foundations used to treat liquefied saturated silt ,a summary of the anti‐liquefaction performance of the three types of composite foundation was determined .The experimental results showed that :(1) the develop‐ment trend of excess pore pressure of natural saturated silt was the same at different depths ,but the pore pressure of the shallow layer is lower .The distribution of the pore pressure ratio is small in the shallow layer and high in the middle and deep layers .(2) In terms of reducing the pore pressure ,the multi‐pile (gravel pile + cement ,fly‐ash gravel (CFG) pile) composite foundation and the gravel pile ,both have little effect on the pore pressure of the shallow and middle layers , but the gravel pile has better effects on the deep layer .(3) In terms of reducing vertical deforma‐tion ,multi‐pile (gravel pile + CFG pile) and CFG pile are more effective than the gravel pile , but the multi‐pile foundation offers the most pronounced effect .关键词
数值分析/复合地基/碎石桩/CFG 桩/孔压比Key words
numerical analysis/composite foundation/gravel pile/CFG pile/pore pressure ratio分类
建筑与水利引用本文复制引用
王震,张艳美,程志良,马维力..饱和粉土复合地基数值模拟[J].地震工程学报,2015,(z2):191-196,6.基金项目
国家自然科学基金项目 （）
