季节性冻土地区隧道冬季施工防寒保温措施

在黑龙江省、内蒙等季节性冻土区的公路、铁路建设中,隧道工程所占的比例越来越高.为了满足工期要求,隧道工程进行冬季施工尤为重要.以博牙隧道工程为例,提出了暖风炉隧洞洞内供热措施,有效地解决了季节性冻土区隧道冬季施工防寒保温问题,延长了施工时间,加快了施工进度,节约了成本,取得了明显的经济和社会效益,为今后同类隧道的冬季施工提供借鉴与参考.

Thermal Insulation Measures of Tunnel Construction in Winter in Seasonally Frozen Areas

The tunnel engineering takes an increasingly larger part in the road and railway construction in the seasonal freezing areas such as Heilongjiang Province and Inner Mongolia.In order to meet the time demand,the tunnel construction in winter comes to be very important.The paper takes the Boketu-Yakeshi tunnel project as an example to suggest the tunnel heating measures with the warm air furnace,which is able to solve the problem of cold insulation in the tunnel construction in winter in the seasonally frozen area.The measures can extend the working time,speed up the construction progress and decrease the cost,thus it can benefit the economy and society,which could provide a providing a reference for the similar projects.