科研之友
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摘要
Based on the field monitoring of ground temperatures along G214 Highway in permafrost regions, the ground temperatures in superficial layer, the annual average temperatures under concrete pavements and asphalt pavements were discussed, respectively. The influence depth of temperature field under the embankment for concrete pavements and asphalt pavements were also studied. The results analysis indicate that there were remarkable seasonal differences of the ground temperatures in superficial layer between asphalt pavement and concrete pavement. The influence depth of temperature field under the embankment for pavement material types was under 8m depth. The difference and the development process of the maximum thawed depths, the maximum thawed depths changed with the service time and height of embankment, and the differences of the formation time of melt soil nuclear were studied by numerical analysis. The effective measurements will be proposed to keep the thermal stabilities of highway embankment by the results. The results could also provide references for the future similar projects.
