天津富民桥超长钻孔灌注桩群桩的施工控制  

Construction Control of Very Long Group Bored Piles of Fumin Bridge in Tianjin

作　　者：郭宇航[1] 罗生海 李华[2] 李飞[1] 

机构地区：[1]天津城建集团工程总承包公司,天津300211 [2]天津市路驰建设工程监理有限公司,天津300100

出　　处：《桥梁建设》2008年第5期21-23,共3页Bridge Construction

摘　　要：天津富民桥工程施工中,5号主塔及3号锚碇基础皆为桩长不少于60 m的钻孔灌注桩群桩基础,施工工艺复杂,质量较难控制。从其施工控制要点进行分析,根据施工工艺特点,提出该桥超长群桩的施工控制措施。In the construction project of Fumin Bridge in Tianjin, the foundations of Tower No. 5 and Anchorage No. 3 are all of group bored piles with the pile length not less than 60 m. The construction technology for the piles is complicated and the construction quality is accordingly rather difficult to control. In this paper, the key points of the construction control of the piles are analyzed and the construction control measures for the very long group bored piles of the Bridge are provided in the light of the characteristics of the construction technology.

关 键 词：桥梁基础 钻孔灌注桩 群桩基础 施工控制 

分 类 号：U445.551[建筑科学—桥梁与隧道工程]