真空联合堆载预压法加固软基的稳定性分析  

Stability analysis of preloading method combining vacuum with stack-load

作　　者：向臻锋[1] 莫文杰[1] 卫文[1] 

机构地区：[1]广东省建筑设计研究院

出　　处：《山西建筑》2008年第18期124-127,共4页Shanxi Architecture

摘　　要：进行了真空联合堆载加固地基的稳定性分析,提出采用总应力法时,需考虑土体等向固结产生的土体强度增长和整体向心吸力的影响,用摩尔应力圆阐述了土体受等向固结应力和K0固结应力的不同特点,从而导出二者土体抗剪强度增长偏差的解析解,指出向心吸力的影响可建立模型用积分运算求得。It is necessary to consider the influence of the two factors when we use total stress method to analyze stability of preloading method combining vacuum with stack-load, The different between consolidation pressure Ko and he isotropic consolidation pressure will be expounded by Mohr＇s stress circle in the paper and we can get the fomula from it, The influence of stress toward center will be calculated by putting forword the calculating model,

关 键 词：真空预压 稳定性 总应力分析 等向固结压力 抗剪强度 

分 类 号：TU443[建筑科学—岩土工程]