沉井技术在口岸闸站下游水位自记台设计与施工中的应用  

Application of open caisson technology in the design and construction of downstream water level stage recorder of port gate station

作　　者：曾斯亮[1] 陈宗桥 杨飞[1] 

机构地区：[1]淮安市水利勘测设计研究院有限公司,江苏淮安223005

出　　处：《水利建设与管理》2018年第1期78-80,共3页Water Conservancy Construction and Management

摘　　要：钢筋混凝土沉井具有承载力高、抗渗性能好、施工速度快、成本相对较低等优势,广泛用于各种工程的无水作业施工,特别对于围堰施工难度大、不能进行基坑大开挖的工程,更适宜采用沉井。口岸闸站下游水位自记台位于长江河口,河面较宽,有船只来往,常规土石围堰施工非常困难,采用沉井技术能很好地解决施工问题。本文从工程技术可行性和工程成本可行性两方面对比分析了两种施工方案,就沉井设计和施工要点,以及沉井技术的施工优势进行了总结,该技术可在同类工程中推广使用。Reinforced concrete open caisson has the advantages of high bearing capac ity , good permeability fast construction speed, relatively low cost , etc. It is widely used in anhydrous operation constructions of various projects. Open caisson should be adopted especially for the projects with high cofferdam construction difficulty and the projects incapable of foundation pit excavation. The downstream water level stage recorder of port gate station is locaRiver estuary. The river is wide, ships float on the river, it is very difficult to construct conventional rock cofferdams.Construction problems can be well solved by open caisson technology. In the paper, two construction plans and analyzed from two aspects of engineering technical feasibility and engineering cost feasibility. Design and construction keys of open caisson as well as open caisson construction advantages are summarized, and the technology can be used and promoted in similar projects.

关 键 词：围堰 沉井 设计 施工 水位自记台 

分 类 号：TV522[水利工程—水利水电工程]