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该文通过2000~2005年对吉林省几条高速公路所进行的野外观测、钻探调查及多种不同粗细土料的室内冻胀模拟试验研究,从水、土质、气温、路基特征四个方面对影响公路路基冻害的因素进行了分析和探讨,提出了各种土的冻胀率与含水量的关系、融沉系数与含水量的关系、道路冻深与冻结指数的关系及路基特征与冻胀的关系,分析了地下水分的迁移规律,并提出了有关路基冻害防治方面的建议。
Through the field observation and drilling investigation on several expressways in Jilin Province during 2000-2005 and the indoor frost heaving simulation experiment of many kinds of coarse and fine soil materials, this paper analyzes the characteristics of water, soil, temperature and subgrade from four aspects The factors influencing the frost damage of highway subgrade are analyzed and discussed. The relationship between frost heaving ratio and water content of various soil, the relationship between thaw sink coefficient and water content, the relationship between freezing frost heave and freezing index and subgrade characteristics and frost heave The relationship between groundwater movement and groundwater movement was analyzed. Suggestions on prevention and treatment of roadbed frost damage were put forward.