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路基内部温度和水分呈现动态变化,水分的迁移和温度的改变导致道路冻胀翻浆的产生。为了研究季冻区路基内部水分、温度的变化,以黑龙江省鸡讷公路的林口至大罗密段为依托工程,对典型路段天然位置和路基内部的温度和水分进行实时监测。通过分析黑龙江哈同二级公路的道路病害类型,项目监测了天然位置和路基内部的温度变化过程,分析了路基内部水分和温度在时间和空间上的变化规律,为数值模拟路基水分和温度变化规律提供具体的数据资料。最后从水热变化角度分析了路基内部冻胀翻浆病害产生的机理。
Subgrade temperature and moisture show a dynamic change, water migration and temperature changes lead to road frost heaving. In order to study the changes of water and temperature inside the roadbed in the quaternary area, the temperature and moisture inside the typical sections and in the embankment were monitored in real time on the basis of the project from Linkou to Daluomi of Ji’ne Highway in Heilongjiang Province. By analyzing the types of road diseases in Heilongjiang Harbin-Dalian Class-2 Highway, the project monitored the natural location and the temperature change process inside the roadbed, analyzed the temporal and spatial variation of water and temperature inside the roadbed for numerical simulation of water and temperature changes in the roadbed Law to provide specific data. Finally, from the perspective of hydrothermal changes, the mechanism of frost heaving disease in subgrade was analyzed.