用ADINA计算饱和黄土地区CFG桩的中性点位置  

Calculation of CFG pile's neutral point in saturated loess district with ADINA

作　　者：雪峰[1] 王旭[1] 

机构地区：[1]兰州交通大学土木工程学院

出　　处：《山西建筑》2007年第6期101-102,共2页Shanxi Architecture

摘　　要：探讨了CFG桩复合地基负摩阻力的产生及其影响因素,概括了中性点的计算方法,采用ADINA有限元软件模拟饱和黄土地区CFG桩的固结沉降过程,并计算其中性点的位置,可以发现在饱和黄土地区桩基负摩阻力中性点位置较一般地区深,建议施工中应考虑其影响。This paper discusses the occurring of negative friction in CFG pile composite foundation and its influential factors,summarizes the methods to calculate neutral point,simulates consolidation settlement process of CFG pile in saturated loess district with ADINA finite element software,calculates the place of its neutral point which is deeper than that in common district,and suggests that man should considering its influences in construction.

关 键 词：饱和黄土 CFG桩复合地基 负摩阻力 中性点 

分 类 号：TU473.12[建筑科学—结构工程]