人民长江Issue(12)：63-67,5.DOI:10.16232/j.cnki.1001-4179.2015.12.016
岩溶地区CFG桩复合地基现场试验研究
In-situ test on CFG composite foundation in karst area
摘要
Abstract
CFG piles are widely used in foundation treatment engineering. Aiming to the complexity of foundation treatment of a large-scale refinery in karst area, the compacting effect of CFG piles on soils among piles was analyzed on the basis of the re-sults of standard penetration test and heavy dynamic penetration test, and the bearing capacity of single pile and composite foun-dation was verified by static load test. Moreover, the bearing capacity of CFG composite foundation was checked by theoretical calculation and compared with in-situ test. The study results showed that the compaction effect on soil among piles by CFG pile was not obvious;and the bearing capacity of composite foundation in karst area can reach the standards. Based on the static load test results, an empirical formula between bearing capacity and pile-length is built by scatter fitting.关键词
岩溶地区/复合地基/地基处理/CFG桩/现场试验Key words
karst area/composition foundation/foundation treatment/CFG pile/in-situ test分类
建筑与水利引用本文复制引用
马永峰,张志豪,刘元钊,张彪..岩溶地区CFG桩复合地基现场试验研究[J].人民长江,2015,(12):63-67,5.基金项目
中国石油工程建设公司科学研究与技术开发项目(CPECC2011KJ22) （CPECC2011KJ22）
