Compared Analysis of Embankment Thermal Stabilities in High Temperature Permafrost Regions with and without Climatic Warming

Abstract:

The heat stabilities of embankment on the high temperature permafrost regions in the eastern Tibetan Plateau without climate warming and with air temperature rising speed of 0.04°C/a were modeled, and the heights of embankment were discussed and figured out, comparatively and respectively for asphalt-paved, concrete and gravel road surface, according to the natural geographic and geologic conditions in the high temperature permafrost regions in the district. The different confined conditions about embankment critical heights with climate warming and without climate warming were discussed in the paper. Finally, the result had been obtained by numerical calculation: in the high temperature area, for the two types of laying of cement concrete and gravel surface road, the two critical heights of the thermal stable conditions were (road operation for 30 years), respectively, do not consider climate change as 2.5 m and 2.0 m, consideration of climate change were 3.5 m and 3.0 m.

• Periodical: Applied Mechanics and Materials (Volumes 204-208)
• Pages: 1822-1829
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.204-208.1822
• Online since: October 2012
• Authors: Dong Qing Li, Xing Huang, Jian Hong Fang
• Keywords: Climate Warming, Heat Stability of Embankment, High Temperature Permafrost, Natural Permafrost Table, Upper Thawed Course

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