严寒地区高速铁路桥面线间保护层混凝土应用研究

Research on the Application of Protective Layer Concrete betweenHigh-speed Railway Bridge Deck in Severe Cold Area

安全性和耐久性对高速铁路来说至关重要,假如桥梁防水系统没有满足规定的标准和要求会导致桥梁结构受损,高铁保护层混凝土的起皮、粉化、开裂、剥落等现象会损坏防水保护层结构,对列车的安全运行造成严重的影响。本文主要介绍严寒地区高速铁路结构大面积保护层混凝土施工过程中的施工方法及注意事项,根据其它严寒地区高速铁路结构大面积混凝土受到冻融影响容易粉化开裂的现象展开研究。

Safety and durability are very important for high-speed railways.If the bridge waterproofing system does not meet the specified standards and requirements,the bridge structure will be damaged,and the high-speed railway protective layer concrete will be peeled,chalked,cracked,and peeled off.It will damage the waterproof protective layer structure and cause serious impact on the safe operation of the train.This paper mainly introduces the construction methods and precautions in the construction of large-area protective layer concrete for high-speed railway structures in severe cold areas.According to the phenomenon that large-area concrete of high-speed railway structures in other severe cold areas is easily pulverized and cracked by freezing and thawing.