合蚌客运专线桥梁桥面防水层设计与施工

Design and Construction of the Bridge Deck Waterproofing Layer of Hefei—Bengbu Passenger Railway

合蚌客运专线杜家岗特大桥采用无砟轨道,其防水层采用喷涂聚脲防水涂料,满足了高铁防水层不仅应具有防渗、抗裂的性能,还要能经受火车高速行驶带来的冲击的特殊要求。本文介绍了该无砟轨道桥面采用喷涂聚脲防水涂料和局部采用聚氨酯防水涂料的设计与施工技术。

Because of using ballastless track, Dujiagang Bridge of Hefei--Bengbu passenger railway applies SPUA waterproofing coating as waterproofing layer, which meets not only the requirements of impermeability and crack resistance, but also the demands of bearing the impact of fast-moving trains. The paper introduces the waterproofing design and construction of the bridge deck with ballastless track, focusing on SPUA waterproofing coating and pulyurethane waterproofing coating.