试论铁路特大桥水下钻孔桩施工控制技术

Discussion on Construction Control Technology of Underwater Bored Piles for Railway Super Large Bridges

铁路特大桥水下长钻孔灌注桩施工难度大,施工过程中根据地质情况采用了合理的施工工艺和方法,保证了每一根桩的施工质量,为水下长钻孔灌注桩程施工积累了可供借鉴的技术资料。在穗莞深项目东江北干流特大桥水上部分施工过程中,通过做实前期策划,优化施工技术方案,认真落实各项工作,实现了东江北水中桥梁施工有序推进,并取得了一定成绩,对铁路特大桥水下钻孔桩施工控制作出了技术分析。

It is difficult to construct long-distance bored piles for railway super-large bridges.During the construction process,reasonable construction techniques and methods are adopted according to the geological conditions to ensure the construction quality of each pile.The construction has accumulated technical materials for reference.During the construction of the water part of the Dongjiang North Main Bridge of the Suiguan-Shenzhen project,through the pre-planning,optimization of the construction technical plan,and conscientious implementation of various tasks,the bridge construction in Dongjiang North Water has been promoted in an orderly manner and has achieved certain results.A technical analysis was made on the construction control of underwater bored piles of railway super large bridges.