高寒地区地铁车站主体结构施工保温技术

Thermal insulation technology on main structure of metro station construction in alpine cold region

提出了地铁车站顶板混凝土养护采用综合蓄热法和侧墙采用电加热法,建立了高寒地区地铁明挖车站主体结构冬季施工保温技术,经哈尔滨地铁2号线龙川路站现场应用,在14d养护时间内温度监测结果基本保持在10°C以上,该技术应用效果良好,为今后类似工程提供参考。

A comprehensive heat storage method to the maintenance of the top slab concrete andan electric heating method to the maintenance oftheside wallare adopted for the metro station. The thermal insulation technology on the main structure of metro station constructed with cut and cover method is established to the winter construction in the alpine cold region. The temperature monitoring results are basically kept above 10℃ within the 14 day of maintenance time through the field application of the Longchuan Road Station in Harbin Metro Line 2. The application effect of the thermal insulation technologyis good, which provides thereference for similar projects in the future.