永定新河特大桥钢板桩围堰设计与施工

Design and Construction of Steel Sheet Pile Cofferdam for Yongdingxin River Bridge

介绍津秦客专宁车沽永定新河特大桥深水基础钢板桩围堰的设计与施工。根据该桥实际情况,通过多种工况的受力分析与计算,从施工安全、成本、工期等多方面进行比较,得出合理的结构方案,并对关键施工工艺作具体叙述。

This paper introduces the design and construction of steel sheet pile cofferdam for deep water foundation in Ningchegu Yongdingxin River Bridge in the Tianjin-Qinhuangdao Railway Passenger Line.According to the actual situation of the bridge,through a variety of stress analysis and calculation of working conditions,this paper offers a reasonable structure program by comparison of construction safety,cost,construction period and so on,and describes the key construction technology.