CFG桩复合地基承载力不足时的短桩补救方法及多桩复合地基检测  

Remedial Method of Short Pile and Detection of Multi Pile Composite Foundation for Insufficient Bearing Capacity of CFG Pile Composite Foundation

作　　者：李广旺 

机构地区：[1]中材地质工程勘查研究院有限公司,北京100102

出　　处：《中国非金属矿工业导刊》2014年第5期56-58,共3页China Non-Metallic Minerals industry

摘　　要：本建筑原设计CFG桩复合地基承载力为330k Pa,施工完成一半多时发现不能满足390k Pa承载力要求,于是采用了在原长桩间隙布设CFG短桩形成长短桩复合地基,从而解决了原设计承载力不足的缺陷;施工结束后复合地基承载力采用了多桩复合地基检测方法,检测数据证明该处理措施经济合理可行。The original design of CFG pile composite foundation bearing capacity is 330kPa. It can not meet the requirements of bearing capacity of 390kPa when construction is completed more than half of that. CFG short piles are inserted in the original long pile space. So, the defects of insufficient bearing force of the original design is solved. Detection method of bearing capacity of composite foundation for multi pile composite foundation after construction is used. Test results show that the measures are reasonable in economy and feasible.

关 键 词：CFG桩复合地基 长短桩复合地基 CFG短桩 多桩复合地基检测 

分 类 号：TU472[建筑科学—结构工程] TU473.1[建筑科学—土工工程]