库区深水裸岩高桩承台施工浮式平台设计研究

摘要

Through design research on floating platform, which is used for the construction of high pile cap with exposed rock in deep water in reservoir region, in Qujiang Bridge of new Lanzhou-Chongqing Railway, the construction platform adapted to this project condition was developed. The development was based on the research result of ensuring overall stability of the floating platform, drawing lessons from large barge keel design theory, adopting the construction method of small float boxes assembling the floating platform. As a result, it solves the construction puzzle of foundation construction with exposed rock in deep water in reservoir region where the large marine equipment can't enter into, and enhances construction safety and economical efficiency.%通过对新建兰渝铁路渠江特大桥库区深水裸岩高桩承台施工浮式平台进行设计研究,研发出适合该工程施工条件的施工平台.在确保浮式平台的整体稳定性研究上,借鉴大型驳船龙骨设计理论,采用小浮箱组拼浮式平台的施工方法,解决了库区、大型水上设备无法进场的库区深水裸岩基础的施工难题,增强了施工安全性和经济性.