铁路桥梁水下墩台基础检测技术研究

针对目前铁路桥梁水下墩台基础存在的常见病害,在总结水下检测实践经验的基础上,将铁路桥梁水下检测的内容归纳为外观检查、结构测量、地形地貌、水文检测、无损检测和振动测试6个方面,并阐述了相应的检测方法.根据检测内容的必要性和检测设备的发展水平,将检测内容又划分为一般检测项目和专项检测项目,并通过一般检测项目的典型案例验证了检测方法的可行性.铁路桥梁水下墩台基础检测技术为水下墩台基础的安全评估奠定了基础,补充并完善了铁路桥梁检测体系.

Detection Technology on Underwater Piers Foundation of Railway Bridge

In view of the common diseases existing in the underwater pier foundation of the railway bridge at present,based on the summary of the practical experience of the underwater detection,the contents of the underwater detection of the railway bridge are summarized into six aspects,namely,appearance detection,structure measurement,topography and geomorphology detection,hydrological detection,non-destructive detection and vibration test,and the corresponding detection methods are described.According to the necessity of detection content and the development level of detection equipment,the detection content is divided into general detection items and special detection items,and the feasibility of detection method is verified by typical cases of general detection items.The detection technology of underwater pier foundation of railway bridge lays a foundation for the safety assessment of underwater pier foundation,complements and improves the detection system of railway bridge.