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界浦河大桥是昆山市元丰路与苏州工业园区苏胜路道路对接工程的重要组成部分,是昆山市高新区与苏州工业园区路网连接的工程之一。界浦河大桥跨越界浦河,主桥采用50m+80m+50m变截面预应力混凝土连续箱梁,采用悬浇施工。主桥主墩采用低承台群桩基础,为水中墩。桥墩处河道水深,流速较大,航道繁忙,因而无法采用筑坝围堰断航施工,计划采用钢板桩围堰施工。本文主要介绍该桥主墩施工钢板桩围堰的施工方案。
Boundary Pu River Bridge is Kunshan City, Yuen Fung Road and Suzhou Industrial Park, Su-sheng Road docking project is an important part of high-tech zones in Kunshan City, Suzhou Industrial Park, one of the road network connection. Boundary Pu River Bridge across the border Puhe, the main bridge with 50m +80 m +50 m variable cross-section of prestressed concrete continuous box girder, the use of cantilever construction. The main bridge pier using low cap group pile foundation for the water pier. River pier pier depth, high velocity, busy waterway, which can not be used dam break cofferdam construction, plans to use steel sheet cofferdam construction. This article mainly introduces the construction plan of steel sheet pile cofferdam for the construction of the main pier of the bridge.