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在季节性冻土区的路基工程中 ,冻胀是冻害的主要形式之一 ,冬季较强烈的冻胀也预示着春季可能要产生较严重的融沉和翻浆。根据 2 0 0 0～ 2 0 0 2年间对吉林省长余高速公路路基冻胀观测所获得的资料 ,描述了冻胀引起的路面变形破坏特征 ,对影响冻胀的因素进行了分析 ,并阐明了路基冻胀量沿冻深的分布状况。
In the subgrade project of seasonal permafrost zone, frost heave is one of the main forms of frost damage. The severe frost heaving in winter also indicates that more severe thawing and boiling may occur in spring. According to the data obtained from the observation of subgrade frost heave expansion of Changyu Expressway in Jilin Province from 2000 to 2002, the deformation and failure characteristics of road surface caused by frost heave are described, and the factors that affect the frost heave are analyzed. The subgrade frost heave distribution along the deep freezing conditions.