乌鞘岭高海拔地区隧道冻胀机理及防冻措施研究  

Study on Frost Heaving Mechanism and Anti-freezing Measures of Tunnels in High Altitude Area of Wushao Mountain

作　　者：王增运 WANG Zengyun

机构地区：[1]甘肃省交通规划勘察设计院股份有限公司,甘肃兰州730030

出　　处：《城市道桥与防洪》2020年第7期240-243,M0022,M0023,共6页Urban Roads Bridges & Flood Control

摘　　要：研究了围岩、混凝土的冻胀特性以及地下水对寒冷地区隧道的危害程度,揭示了隧道冻害发生的机理;以G30连霍高速公路永登至古浪段乌鞘岭隧道为依托,提出了防止隧道冻害的措施,并介绍了隧道加热新技术。The frost heaving characteristics of surrounding rock and concrete, and the damage of underground water to the tunnels in the cold regions are studied. The mechanism of frost damage in tunnel is revealed. Based on Wushao Mountain Tunnel from Yongdeng to Gulang in G30 Lianyungang-Korgas Expressway, the measures to prevent the frost damage in tunnel are proposed. The new technology of tunnel heating is introduced.

关 键 词：乌鞘岭 高寒隧道 冻胀 保温防冻措施 

分 类 号：U457[建筑科学—桥梁与隧道工程]