高速铁路大跨度桥梁水中墩变形监测技术研究

Technical Research on Deformation Monitoring and Measuring of Large-span Bridge Piers in Waters along High-speed Railway

分析目前高速铁路大跨度桥梁水中墩变形监测方法存在的问题,创造性地将CRTSⅡ型板轨道基准网测量中的元器件与精密光电测距三角高程相结合,设计出了具有普遍适用性、满足规范要求的大跨度桥梁水中墩变形监测方案,解决了目前水中墩变形监测中存在的诸多弊端,阐明了方案的可行性和优势所在。

This paper analyzes the current problems in deformation monitoring and measuring methods for large-span bridge pier in waters along high-speed railway.And then the components and instruments used for track reference net surveying of CRTS-Ⅱ slab are combined creatively with the trigonometric leveling of precise electro-optical distance measurement.Further,this paper provides a new method of deformation monitoring and measuring for large-span bridge pier in waters,which can have the general applicability and can meet the requirements of standards.So many disadvantages in traditional deformation monitoring methods for bridge pier in waters are eliminated.The feasibility and advantages of this new method are expounds also in this paper.