深圳地铁5号线宝安立交桥桩基托换技术  

Piles Foundation Underpinning of Bao'an Bridge in Shenzhen Subway Line 5

作　　者：潘健[1] 何志虎[1] 周森[1] 

机构地区：[1]华南理工大学,广州副教授510640

出　　处：《城市轨道交通研究》2011年第9期94-97,共4页Urban Mass Transit

摘　　要：随着我国城市地铁的大量兴建,尽量减少地下建筑对既有建筑的影响已成为一个引人关注的新课题。对桩基托换技术进行了简要的介绍,并以深圳地铁5号线盾构区间宝安立交桥的桩基托换为例,对桩基托换设计、施工工艺、桩基托换关键工作等作了介绍,供复杂施工环境下的既有桥梁桩基托换施工作参考。With the growing scale of urban subway construction, how to minimize the impact of the underground construction to the existing buildings becomes a new concerned topic. This paper gives a brief description of the pile underpinning technology first, then takes the piles foundation underpinning of Bao＇an Bridge on Shenzhen subway Line 5 as example, illustrates in detail the design and construction technology, the key construction contents of pile underpinning, which has provided precious experiences for this technology in built-up bridge in complex construction and geological conditions.

关 键 词：地铁施工 既有桥梁 桩基托换 施工工艺 

分 类 号：U231.3[交通运输工程—道路与铁道工程]