挤扩支盘桩的应用与施工  

Application and Construction of Concrete Poured Pile Formed by Supporting Trays Extruding and Expanding the Hole

作　　者：徐至钧[1] 

机构地区：[1]北京恒富房地产开发有限公司,100055

出　　处：《住宅科技》2002年第7期17-19,共3页Housing Science

摘　　要：挤扩支盘桩通过在合适的土层挤扩,形成带支的灌注桩,大大提高单桩的承载力,减小桩径与桩长,节约成本,缩短工期,已在许多城市广泛使用。介绍了挤扩支盘桩的作用机理、桩基承载力、施工程序与质量控制等情况。The concrete poured pile with supporting trays formed by extruding and expandin g the soil in the hole can increase pile bearing capacity,decrease pile di ameter and length,cut down costs and shorten con struction period.It has been widely used in many cities.The author intro duces its mechanism,bearing capacity of pile foundation,con struction procedure and quality control.

关 键 词：挤扩支盘桩 施工 分支 承力盘 承载力 

分 类 号：TU473.1[建筑科学—结构工程]