由于常年冻土，我国高原地区路基的热平衡状态失调，路基变形情况十分严重。根据冻土地区的施工特点，从其冻胀性、融沉性和冻融过程出发，对常年冻土地区的路基情况进行实地分析和考察，并研究出相应的控制对策。%Due to permafrost, the plateau region of thermal equilibrium disorders roadbed subgrade deformation is very serious. According to the construction characteristics of permafrost regions from frost heaving, thaw and freeze-thaw process starting on the embankment in permafrost regions of the situation analysis and field trips, and come up with appropriate control strategies.
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