高速铁路桥墩耐久性因素分析与质量控制

Analysis on Factors Influencing the Durability of High-speed Railway Bridge Piers and Quality Control

高速铁路桥墩基本采用现场浇筑,其混凝土结构的耐久性影响因素较多。本文对组成桥墩的桩基、承台和墩身的耐久性影响因素进行了逐项分析,并针对桥墩各部位的耐久性特点和主要侵蚀介质的劣化机理,提出了相应的质量控制措施。其研究成果对高速铁路桥墩的耐久性设计和施工具有一定的指导意义。

Since high-speed railway bridge piers are generally poured in place,many factors will influence the durability of the concrete structure.In this paper,the factors influencing the durability of the pile foundation,pile cap and body of the bridge pier are analyzed one by one,and corresponding quality control measures are put forward according to the durability characteristics of each part of the bridge pier and the deterioration mechanism of the main erosion media.The research results have certain guiding significance for the durability design and construction of high-speed railway bridge piers.