摘要
近年来,随着我国“一带一路”的建设与交通网的西移,越来越多的寒区隧道在西部地区修建,但是由于寒区隧道冻害频繁发生,因此防寒保温是寒区隧道工程建设中亟待解决的难题。通过回顾典型寒区隧道工程案例,总结了寒区隧道冻害特点与成因,归纳了已有寒区隧道防排水措施和洞周、洞口保温措施,并对其合理性与适用性进行了评价,以期为未来寒区隧道的冻胀效应、防寒保温设计提供参考。
In recent years,with the construction of“One Belt,One Road”and the westward shift of the transportation network in China,more and more tunnels in cold regions have been built in the western region.However,due to the frequent occurrence of freezing damage to tunnels in cold regions,cold prevention and thermal insulation is a difficult problem to be solved during the construction of tunnels in cold regions.By reviewing typical cases of tunnel engineering in cold regions,the characteristics and causes of frost damage are summarized,the existing measures for waterproofing and drainage are summarized,as well as insulation measures around and at the openings.The rationality and applicability of these measures are evaluated in order to provide reference for the frost heave effect and cold insulation design of cold region tunnels in future.
作者
李长伟
郭倬宇
支彬
许晓静
宋战平
Li Changwei;Guo Zhuoyu;Zhi Bin;Xu Xiaojing;Song Zhanping(China Road&Bridge Corporation,Beijing 100011,China;School of Civil Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China;Shaanxi Key Laboratory of Geotechnical and Underground Space Engineering,Xi’an 710055,China)
出处
《市政技术》
2024年第7期44-53,共10页
Journal of Municipal Technology
基金
陕西省创新能力支撑计划项目(2020TD-005)
中国路桥工程有限责任公司2023年度科技攻关项目(2023-zlkj-03)。
关键词
寒区
隧道工程
防寒设计
排水措施
保温措施
cold region
tunnel engineering
cold-proof design
drainage measures
insulation measures
