基于汛期水位变化的双层高低钢板桩围堰施工技术研究  

Double Layer High and Low Steel Sheet Pile Cofferdam Based on Water Level Change in Flood Season Research on Construction Technology

作　　者：袁攀峰 YUAN Panfeng(The 11th Bureau Group Co.Ltd.of China Railway,Wuhan 430010,China)

机构地区：[1]中铁十一局集团有限公司,湖北武汉430010

出　　处：《国防交通工程与技术》2022年第1期37-41,共5页Traffic Engineering and Technology for National Defence

摘　　要：秋浦河常水位标高+7.5 m左右,汛期水位标高可达+14.5 m,为解决基础施工时汛期水位上涨而施工不能间断的难题,综合考虑水文地质、施工环境及工期,经多方案优选确定采用双层高低钢板桩围堰结构进行承台基础及墩柱的施工。依据双层高低钢板桩围堰设计参数进行结构分析,确保施工安全顺利进行。可为深水汛期施工条件下桥梁基础大型双层高低钢板桩围堰的应用提供参考与借鉴。The elevation of normal water level of Qiupu river is about+7.5 m,and the elevation of water level in flood season can reach+14.5 m,in order to solve the problem of rising water level in flood season and ensuring uninterrupted construction during foundation construction,hydrogeology,construction environment and construction period are comprehensively considered.Through the optimization of several schemes,it is determined that the double-layer high and low steel sheet pile cofferdam structure is used for the construction of bearing platform foundation and pier column.The structural analysis based on the design parameters of double-layer high-low steel sheet pile cofferdam can ensure the safe and smooth construction,which can provide reference for the application of large-scale double-layer high-low steel sheet pile cofferdam of bridge foundation under the construction condition of deep-water flood season.

关 键 词：双层高低钢板桩围堰 汛期施工 结构分析 

分 类 号：U443.162[建筑科学—桥梁与隧道工程]