深覆盖砂卵石层钢板桩围堰施工技术研究  

Research on construction technology of steel sheet pile cofferdam with deep covering sand and pebble layer

作　　者：单丽 彭学军 汤宇 凌涛 田仲初[2] SHAN Li;PENG Xuejun;TANG Yu;LING Tao;TIAN Zhongchu(China Railway No.5 Group,The First Engineering Co.,Ltd.,Changsha 410117,China;School of Civil Engineering,Changsha University of Science and Technology,Changsha 410114,China)

机构地区：[1]中铁五局集团第一工程有限责任公司,湖南长沙410117 [2]长沙理工大学土木学院,湖南长沙410114

出　　处：《中国高新科技》2022年第4期66-68,共3页

基　　金：宁夏回族自治区重点研发计划项目(项目编号:2021BEG02021)。

摘　　要：针对深覆盖砂卵石层下钢板桩围堰施工难题,文章结合镇罗黄河特大桥13#墩承台钢板桩围堰施工的现场情况及施工特点,围绕在砂卵石河床中运用钢板桩围堰施工技术进行阐述,同时为保障施工质量、提高施工效率,采用高压射水辅助沉桩技术,为类似工程提供参考。Aiming at the construction difficulties of steel sheet pile cofferdam under the deep covering sand and gravel layer,this paper combines the site conditions and construction characteristics of the steel sheet pile cofferdam construction of the 13#pier bearing platform of Zhenluo Huanghe Bridge,and uses the steel sheet pile cofferdam construction in the sand and gravel river bed.The technology is introduced.At the same time,in order to ensure the construction quality and improve the construction efficiency,the highpressure water jet auxiliary pile-sinking technology is used to provide reference for similar projects in the future.

关 键 词：基础施工 钢板桩围堰 卵石河床 高压射水 气泵吸泥 

分 类 号：U445[建筑科学—桥梁与隧道工程]