工程地质学报2011，Vol.19Issue(6)：882-886,5.
孔压静力触探(CPTU)确定地基土压缩模量方法研究
DETERMINATION OF COMPRESSIVE MODULUS FOR FOUNDATION SOILS FROM THE PIEZOCONE PENETRATION TEST(CPTU)
摘要
Abstract
Based on the theory of solving over-determined equations with the least square method and parameters back analysis methods,this paper discusses the approach to quickly determine the compressive moduli of multi-layered soft ground. The approach contains CPTU tests data together with corresponding ground settlement data. It is aimed to establish the empirical relationship formula between compressive modulus and cone tip resistance according to kinds of soils. Finally,the CPTU tests results of soft ground in Chong-qi Bridge are present. The results of the compressive modulus are compared with data of laboratory oedometer tests and other situ tests. Comparisons of the results indicate that the compressive modulus determined with CPTU tests are twice as much as that measured in the laboratory consolidation tests and are in good agreement with that from CPT and SPT. When the compressive modulus from CPTU tests were used directly for design,it would be better in practice.关键词
压缩模量/多层地基/沉降/孔压静力触探/参数反分析Key words
Compressive modulus, Multi-layered ground, Settlement, Piezocone penetration test (CPTU) , Parameters back analysis分类
交通工程引用本文复制引用
姬付全,经绯,刘志彬,居俊..孔压静力触探(CPTU)确定地基土压缩模量方法研究[J].工程地质学报,2011,19(6):882-886,5.基金项目
江苏省交通厅资助项目(09Y33). （09Y33）
