深水高潮位临江区域大型水利泵站排放口围堰快速施工及止水技术研究  

Rapid Construction & Sealing Technology for Outlet Cofferdam of Large-Scale Water Pumping Station In Deep Water High Tide Riverside Area

作　　者：于光喜 YU Guang-xi(Shanghai Pudong Engineering Construction Administration Co.,Ltd.,Shanghai 201210,China)

机构地区：[1]上海浦东工程建设管理有限公司,上海201210

出　　处：《中国市政工程》2018年第2期103-106,136,共5页China Municipal Engineering

摘　　要：水利工程排放口通常设置在临江、临海区域,为确保施工安全,采用围堰施工。临江、临海区域水位高、潮汐变化大、水上作业施工风险大、地质条件复杂、施工场地受限、排放口施工总体难度大。结合张家浜雨水泵站新建工程排放口及防汛墙围堰施工,通过围堰的设计优化,现场施工难点攻关,采用一种自驾式水上双排钢板桩围堰施工方法。针对围堰接缝接口易渗漏及流土等问题,提出相应接缝止水办法,确保排放口围堰施工期间的止水及安全,缩短工期和节约成本。The outfall of water conservancy project is usually located in riverside&coastal areas.In order to ensure the safety of construction,cofferdam construction is adopted.The water level in riverside&coastal areas is high,the tidal changes are large,the construction risk of water work is large,the geological conditions are complex,the construction site is limited,and the overall difficulty of the construction of the discharge port is great.Combined with the construction of the new project of Zhangjiabang River water pump station and the construction of the flood prevention wall cofferdam,through the optimization of the cofferdam design and the difficulties in the field construction,a selfdriving water double row steel sheet pile cofferdam construction method is adopted.In view of the leakage of cofferdam joint interface and the flow of soil and other problems,the corresponding seaming method is put forward to ensure the water stop and safety during the construction of the cofferdam,shorten the time period and save the cost.

关 键 词：排放口 防汛墙 围堰 快速施工 监测 

分 类 号：TV5[水利工程—水利水电工程]