新型组合围堰施工技术  

Construction Technology of New Combined Cofferdam

作　　者：阮建中[1] 周霄[1] 

机构地区：[1]杭州天恒投资建设管理有限公司,浙江杭州310004

出　　处：《施工技术》2012年第9期31-34,共4页Construction Technology

摘　　要：结合某大桥边主墩承台施工实例,采用了一种双壁钢围堰和吹砂围堰相结合的新型组合围堰施工技术。详细介绍了在水位有明显季节性变化的河流中进行承台施工的实际情况,包括主要施工步骤,井点降水计算及验证,工程实施情况。该工程实例表明,采用该项施工技术,节约了施工投入,达到降本增效的目的,加快了施工进度,且便于质量控制。A new technology was adopted during the pile cap construction of the side main pier for a bridge,which combined double-wall steel cofferdam and blowing sand cofferdam to develop a new kind of cofferdam.The pile cap construction in rivers with seasonal changing water levels was introduced in detail,including the main construction procedures,calculation and verification of well point dewatering,engineering application performance.Engineering practice shows that the new construction technology can save construction investment,accelerate construction progress and ensure construction quality.

关 键 词：桥梁工程 承台 围堰 施工技术 

分 类 号：TU753.62[建筑科学—建筑技术科学] U445.55[建筑科学—桥梁与隧道工程]