2016年8月下 施工技术 第45卷第16期 CONSTRUCTION TECHNOLOGY 57 D0I:10.7672/8js2016160057 钢管桩托换技术在既有建筑地下室改造中的应用 王海涛，张渊源，安禹蔚，李齐林，张巨振，杨森 (中建一局集团公司承包公司，北京100161) [摘要]某建翼险造施工中，在不拆除原有上部结构前提下，将原有无地下室部位扩建为地下室.地基基础施工期 间，采用钢管对原有验立基础进行支撑并增加新混凝土承台与原独立基础紧密结含浇筑成为一个整体，从替 换原有独立基础承我，达到钢管托换承台的的.总结了本工程钢管托换承台成功的施工经验，对托换承台 在既有建地下室加团改造中施工方法及施工艺进行了较为梨统的介. [关键询]加固；增层；段造；钢管柱；托病承台；基础；监测 [中图分类号]TU746.3[文献标识码]A[文章编号]1002-8498(2016)16-0057-04 Application of Steel Pipe Pile Underpinning Technique in an Existing Building Basement Renovation Wang Haitao Zhang Yuanyuan An Yushi Li Qilin Zhang Juzhen Yang Sen General Contracting Company China Construction First Engineering Division Co.Lid.Beijing 100161 China) Abstract:In the construction of a building renovation the original site without basement needs to be expanded as basement under the premise of no removal of the existing upper structure.During foundation construction steel pipe pile foundation was used to support the existing independent foundation and adding new conerete pile caps were poured into a whole with the original independent foundation closely to replace the original independent foundation bearing which reaches steel pipe pile underpinning the caps.This paper summarized successful experience of the steel pipe pile underpinning caps introduced systematically construction method of underpinning cap used in retrofitting construction of the existing buildings basement. Key words:strengthening;adding layers;retrofitting;steel pipe piles;underpinning cap; found...
钢管桩托换技术在既有建筑地下室改造中的应用.pdf
