严寒地区地铁车站外包防水选型研究

Study on Outer Waterproofing Lay Selection of Subway Station in Cold Regions

根据呼和浩特市气候环境特点及地质条件,结合国内其他城市地铁车站防水设计施工经验,对比地铁车站主要外包防水选型,选择适用于严寒地区施工条件下的外包防水设计方案,车站+顶板表面采用2.0mm厚非固化橡胶沥青防水涂料+4mm厚SBS改性沥青防水卷材复合防水设防,车站侧墙及底板防水层采用1.5mm厚单面粘合非沥青基HPPE高分子自粘胶膜防水卷材。

According to the climatic and environmental characteristics and geological conditions of Hohhot city, combined with the waterproof design and construction experience of other metro stations in China, the outer waterproof design selection for metro stations is formulated by comparing the main types of outer waterproof for metro stations in other cities, which is suitable for construction in cold areas. Composite waterproofing system with 2.0 mm thick non-curable rubber modified asphalt coating and 4 mm thick SBS modified asphalt waterproofing membane is used on the roof surface of stations The waterproofing layer of the outside of wall and floor adopts 1.5 mm thick one-sided adhesive non-asphalt HDPE high polymer self-adhesive membrane waterproofing membrane.