摘要
利用水泥粉喷桩技术处理某高等级公路软弱地基后 ,在形成的粉喷桩复合地基上铺设一定厚度的碎石垫层 ,随机抽取两根粉喷桩的复合地基进行静载荷试验 ,并在复合地基压板下放置钢弦式压力盒 ,根据作用在桩 土的应力测试结果 ,分析整个加荷过程中该类复合地基的桩土应力比的变化规律、垫层厚度与桩土应力比的关系及其对桩承担荷载占总荷载大小的影响。另外 。
The soft foundations of expressway are consolidated by dry?cement pile, then the composite ground is covered by one layer of maca Qam with in situ test, and the stress ratio of pile?soil is measured. Based on the data of in situ test, the varications of stress ratio of pile?soil are analysed during loading process, and the common mechanism of pile?soil load?transmission is discussed.
出处
《公路交通科技》
CAS
CSCD
北大核心
2002年第2期14-16,共3页
Journal of Highway and Transportation Research and Development
基金
湖南省教育科研基金资助项目 (99C1 60 )
