长短桩复合地基施工技术

 王鹤桥

(西安公路研究院,陕西 西安710065

 

  要:本文结合湿陷性黄土路基设计工程实例,对采用的水泥土挤密桩+CFG桩复合地基处理黄土湿陷性和提高承载力措施进行了研究,并在施工前通过反复的工艺性试验,总结出了一套挤密桩+CFG桩施工工艺,确保了各项参数指标满足设计要求,同时可供同类工程参考。

关键词:复合地基;施工工艺;湿陷性

中图分类号:U419        文献标识码A

 

Study on the Construction Technology of Long Short Piles Composite Foundation

WANG He-qiao

Xi’an Highway Research InstituteXi’an 710065, China

Abstract: Combining with collapsible loess roadbed, the cementsoil compaction pile + CFG pile composite foundation treatment measures were adopted by the design, technology experiments were repeated done before the construction A set of compaction pile + CFG pile construction technology was summarized and ensure that all the parameters meet the design requirements

Keywords: composite foundationconstruction technologycollapsibility