跨河道水中桥墩施工方案优化与实施

摘要

There were 21 piers of Lohe River super large bridge of Xiamen - Shenzhen Railway＇s XS- GZQ 7th section located at river. Steel platform and steel testle Scheme was used in water pier con- struction during the tender period. After constuction strating and Reconnaissance, technical staff de- termined to use build island scheme by analyzing for project schedule, technical measures, flood risk, construction cost. Practice has proved that it was a convenient and benefit remarkable scheme.%厦深铁路XSGZQ-7标段螺河特大桥共21个桥墩位于螺河河道水域内，投标时拟采用钢栈桥、钢平台方案进行水中桥墩施工。工程开工后，技术人员进行了实地踏勘，并从工期安排、技术措施、度汛风险、施工成本等方面进行综合分析，确定采用分两期筑岛方案进行水中桥墩施工。实践证明，分期筑岛方案施工便捷、经济效益显著。