寒区特长公路隧道的抗防冻技术

Anti-freeze Measure of the Extra-Long Highway Tunnel in High Attitude and Cold Zones

论文在对世界范围内所应用的各种抗防冻措施进行调研分析的基础上,针对高寒地区特长公路隧道的特点,提出适合中国高寒地区特长公路隧道的抗防冻综合措施:在抗冻方面可采用抗冻混凝土、钢筋混凝土以及增大衬砌厚度的措施;在防冻方面可采用供热法、防寒门法以及隔热材料法等措施,其中在衬砌表面铺设隔热材料法更加安全可靠。

Based on research and analysis of a great many types of worldwide-used anti-freeze and frost-proof measurements, taking into consideration the characteristics of extra long highway tunnel in high-cold areas, this thesis puts forward anti-freeze and frost-proof measurement suitable for extra long highway tunnel in China＇s high-cold area. In view of anti-freeze measurement, frost-resistance concrete, steel concrete can be used and the lining thickness can be increased. As to frost-proof measurement, methods like heat supply, cold proof, heat insulating materials are feasible and also heat insulating materials can be laid to the surface to guarantee the quality.