针对现阶段广泛使用的寒区铁路隧道中心深埋水沟的施工难点和受力特性进行了研究，用有限元方法重点计算分析了浅埋偏压隧道中心深埋水沟的受力特性，结果表明，中心深埋水沟开挖后隧道结构水平和竖向变形有明显增大。%The mechanical characteristics and construction technology of center deep ditch in cold region railway tunnel was studied. Using finite element mode,the mechanics characteristic of shallow buried partial stressful tunnel was done. It shows that the center deep ditch increases hori-zontal and vertical deformation of the tunnel structure greatly.
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