摘要
湿陷性黄土地基的处理一直是工程难题,通过分析CFG桩复合地基的受力变形特点,论述了CFG桩加固湿陷性黄土地基的机理,并按照挤密桩法进行了复合地基的试设计.结合工程实例,在分析工程地质特点及经济性的基础上,推荐CFG桩复合地基方案.处理后对地基的检测结果表明,CFG复合地基承载力和沉降变形均满足设计要求,证明CFG桩可以较低的代价消除黄土湿陷性影响、提高地基承载力.
The disposal of collapsed loess foundatioin has always been a problem in constrution engineering. In this paper the mechanism of consolidating collapsed loess with CFG pile is disscussed by analysing the charicteristic of mechanical behavior of CFG pile composite foundation. Composite foundation is disigned according to measure of compacted pile. So the program which is CFG pile composite foundation is proposed on the basis of analysing engineering geological feature and economical problem combined with engineering instances. The detection of foundation after the disposal shows that both of capacity and subsidence formation of CFG composite foundation can meet the requirements. It is proved that CFG pile composite foundation can iliminate of the collaposed loess and enhance the foundation capacity.
出处
《西安建筑科技大学学报（自然科学版）》
CSCD
北大核心
2008年第2期218-223,共6页
Journal of Xi'an University of Architecture & Technology(Natural Science Edition)
关键词
CFG桩
复合地基
湿陷性黄土
基础
CFG pile composite foundation collapsed loess foundation
