无砟轨道薄涂型防水层箱梁施工技术研究

Research on Construction Technology of Thin-coated Waterproof Box Girder for Ballastless Track

随着高速铁路的快速发展,传统的高聚物改性沥青卷材铺装防水层逐步被薄涂型聚氨酯防水涂料所代替。本文以连徐铁路邳州特大桥变更前后箱梁结构及钢筋变化为例,从设计及施工角度来阐述变更前后箱梁施工工艺的变化与调整,为以后类似箱梁施工提供了参考依据。

With the rapid development of high-speed railways,the traditional polymer-modified bitumen membrane paving waterproof layer has been gradually replaced by thin-coated polyurethane waterproof coatings.This paper takes the box girder structure and steel bar changes before and after the change of the Lianyungang-Xuzhou High-speed Railway Pizhou Bridge as an example,explains the changes and adjustments of the box girder construction process before and after the change from the perspective of design and construction,which provides a reference for similar box girder construction in the future.