多年冻土路基温度场的公路空间效应包括路基尺度效应与路面结构效应。
The dimensional effect of temperature field in permafrost embankment was a general term for size effect of embankment and structural effect of pavement.
考虑多年冻土中水的相变，采用有限元进行热管保护多年冻土路基效果的三维数值分析。
Phase change of water in permafrost is considered and 3d finite element method is employed to study the cooling effect on the soil of embankments due to using thermosyphon technology.
在多年冻土地区修建铁路，为确保冻土路基的稳定，应使路基长期处于冻结状态。
In permafrost regions, the construction of railway should keep the subgrade frozen permanently so as to maintain the stability of the frozen subgrade.
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