隧道保温层设计在河北季节性冻土地区的应用研究  

Research on Application of Thermal Insulation Layer Design for Tunnel in Seasonally Frozen Soil Area of Hebei Province

作　　者：崔柔柔 Cui Rourou(Hebei Provincial Communication Planning,Design and Research Institute Co.,Ltd.,Shijiazhuang 050011,China)

机构地区：[1]河北省交通规划设计研究院有限公司,石家庄市050011

出　　处：《北方交通》2023年第5期69-73,共5页Northern Communications

摘　　要：寒区隧道防冻保温设计是影响隧道运营安全的关键。设置保温层是寒区隧道防冻保温的重要措施,保温层设计要点包括保温材料的选择、保温层设置方式、保温层长度等。结合河北地区隧道保温层设计应用情况,对保温层设计方法进行详细介绍,分析隧道冻害主要原因,明确了保温层设置位置、材料选择和设计理念,可为寒区隧道保温层设计提供参考。The antifreezing and thermal insulation design of tunnels in cold regions is the key to affect the safety of tunnel operation.Setting thethermal insulation layer is an important measure for the antifreezing and thermal insulation of tunnels in cold regions.In combination with the design and application of thermal insulation layer for tunnels in Hebei area,the design methods of the thermal insulation layer are introduced in detail,the main reasons for the freezing damage of tunnel are analyzed,and the set position,material selection and design concept of the thermal insulation layer are clarified,so as to provide reference for the design of the thermal insulation layer for tunnels in cold regions.

关 键 词：公路隧道 季节性冻土 防冻设计 保温层 

分 类 号：U452.2[建筑科学—桥梁与隧道工程]