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冬季气温和冻结深度资料是寒冷及严寒地区铁路隧道(简称寒区隧道)设计的基础资料之一。隧道衬砌形式、水沟及盲沟埋置深度、保温水沟设置长度、衬砌伸缩缝间距等,均与隧道内的气温或冻深有关。若能通过若干座隧道气温与冻深的观测资料,分析出寒区隧道气温和冻深变化的一般规律,供设计参考是有实用价值的。近几年来,我们搜集了三十多座寒区隧道的冬季气温和一些冻深资料,对隧道内冬季气温变化规律、洞内气温与冻深关系作了一点分
Information on winter temperatures and freezing depths is one of the basic materials for the design of railway tunnels in cold and frigid regions. Tunnel lining form, buried depth of ditches and blind ditch, length of insulated ditch and distance between lining expansion joints are all related to the temperature or freezing depth inside the tunnel. If we can pass some of the tunnel temperature and frozen deep observation data to analyze the general rules of the cold zone tunnel temperature and the change of the freezing depth, for the design of reference is of practical value. In recent years, we have collected data on the winter temperatures and some freezing depths of more than 30 cold regions tunnels, and made a point about the change of winter temperature in the tunnels and the relationship between air temperature and deep freezing in the tunnel