振动沉管法CFG桩加固含硬夹层软弱地基及其检测评价  

Treatment of weak ground intercalated rigid layer by vibrating tubular CFG pile and its monitoring test

作　　者：刘志杰 王后裕 刘启川 

机构地区：[1]空军工程设计研究局,北京100068

出　　处：《建筑结构》2009年第3期79-81,102,共4页Building Structure

摘　　要：针对某一工程特殊的地质条件和对地基的具体要求,采用CFG桩复合地基,并对施工方面可能出现的问题进行了分析,提出了具体的解决措施。现场载荷试验及反射波法低应变动力检测试验表明,CFG桩桩身完整性很好,复合地基的承载力提高显著,证明该工程的CFG桩复合地基设计及施工是成功的。CFG pile composite foundation is applied in a project according to its special demand and characteristic geological condition. The problems that might be met in construction are analyzed and the corresponding detail measures are presented. The resuhs of plate loading test and low strain dynamic testing show that the quality of CFG pile composite foundation is good and subgrade bearing capacity has been improved successfully.

关 键 词：CFG桩复合地基 振动沉管法 现场载荷试验 低应变动力检测 

分 类 号：TU472[建筑科学—结构工程] TU471.8[建筑科学—土工工程]