渝万项目深水钢围堰吸泥下沉施工技术研究  

MUD-SINKING CONSTRUCTION TECHNOLOGY OF DEEP-WATER STEEL COFFERDAM FOR YUWAN PROJECT

作　　者：郑琦 ZHENG Qi(China Railway Construction Bridge Engineering Bureau Group 4th Engineerng Co.,Ltd.,Harbin 150008,China)

机构地区：[1]中铁建大桥工程局集团第四工程有限公司,哈尔滨150008

出　　处：《低温建筑技术》2025年第3期155-159,共5页Low Temperature Architecture Technology

摘　　要：文中以渝万项目6#墩与7#墩深水基础双壁钢围堰施工为工程背景,结合项目特征重点论述钢围堰拼装、钢围堰下放、刃脚混凝土浇筑、钢围堰吸泥下沉等施工关键技术。通过利用气举反循环吸泥器、隔舱加水下沉、下沉实时监测等方法,有效降低了施工安全风险、加快了工程施工进度。此深水钢围堰吸泥下沉施工方法可为类似工程提供一种新思路、新办法,具有一定的实际参考意义。The article takes the construction of the deep-water foundation double-wall steel cofferdam for Pier 6 and Pier 7 of the Yuwan project as the engineering background.It focuses on the key construction technologies involved in the assembly of the steel cofferdam,the lowering of the cofferdam,the pouring of concrete in the cutting edge,and the mud sinking of the cofferdam.By employing techniques such as airlifting reverse circulation mud pumps,compartmentalized water-sinking methods,and real-time monitoring of sinking,the safety risks of construction were effectively reduced,and the construction progress was accelerated.The deep-water steel cofferdam mud-sinking construction method may provide a new idea and approach for similar projects and has practical reference value.

关 键 词：深水钢围堰 吸泥下沉 气举反循环 

分 类 号：TU745[建筑科学—建筑技术科学]