高海拔高寒地区隧道拱墙保温板安装快速施工工法

摘要

As China's roads,railways continue to focus on building westward construction of road and rail tunnels increases every year,due to the high altitude special natural and geographical environment,the phenomenon of conventional freezing tunnel construction is extremely prominent.Spend long road long rule four fifth tunnel area has the typical plateau continental climate in tunnel secondary lining surface of the composite layer of insulation and fire,arch tunnel wall insulation board installation quick construction method,it is preferred to prevent tunnel winter frost and fire safety during operation.%随着我国的公路、铁路建设重点不断西移，公路铁路隧道的建设逐年增加，高海拔地区由于特殊的自然地理环境，常规建设的隧道冻害现象极为突出。花久公路久治四、五号隧道所在地区具有典型的高原大陆性气候特征，在隧道二衬表面设置了复合型的保温层和防火层，采用隧道拱墙保温板安装快速施工方法，较好防止了隧道冬季冻害及运营期间的消防安全。