兰新二线桥墩防风蚀措施及施工方法

Method and measure of wind-erosion prevention for bridge piers on Lanzhou-Xinjiang second railway

兰新铁路第二双线新疆段穿越新疆风力最强的五大风区,为了解决风蚀对兰新铁路桥墩混凝土结构的磨蚀问题,经过试验研究兰新铁路第二双线采取了刚柔结合的防风蚀措施。由柔性树脂胶加不锈钢丝网经过多道工序施工,在桥墩表面形成具有较高的压缩与拉伸强度、优良的耐风蚀和磨蚀性能、良好的耐紫外光老化性能及耐气候性的一种刚柔结合复合体,从而实现了桥墩抗风蚀的目标。

The second double-track rail line in Xinjiang of Lanzhou-Xinjiang railway crosses five strong wind areas.In order to solve the wind-erosion problem of bridge concrete piers,the measure of rigid-flexible combination of wind-erosion prevention was adopted by test. The technology is a multistep process,using flexible polyester resin and steel wire webs to make a rigid-flexible composite on the surface of piers. It has high compressive and tensile strength,corrosion and erosion resistance,satisfactory anti-ultraviolet aging and durability,then contribute to winderosion prevention of bridge piers.