王万铁路松花江特大桥基础施工技术

Foundation Construction Technology of Songhua River Super Major Bridge of Wanggang-Wanle Railway

通过松花江特大桥深基础的施工,总结了在不同水文、地质条件下,随基础埋置深度的变化,各种施工方案的分析比选,介绍了利用钻孔平台拼装、下沉双壁钢围堰的施工工艺、钢筋混凝土沉井围堰及大口径管井降水明挖基础施工方法,对类似深基础施工方案的选定有一定参考作用。

Based on the construction of deep foundation of Songhua River Super Major Bridge,the analysis and selection of different construction schemes at different foundation deep level are presented under different hydrological,geological condi-tions.The construction technology of drilling platform assembling,double-wall steel cofferdam sinking and the construction method of reinforced concrete caisson cofferdam and large diameter tube well precipitation are introduced.It has a certain reference function for the similar deep foundation construction situation.