Pass-Resistance Coupling Road Structure Research in Permafrost Region

DOI

10.2991/icache-15.2015.82How to use a DOI?

Keywords

Permafrost region, Pass-resistance coupling road structure, Heat-resistant surface, Heat dissipation roadbed, Prevention countermeasures

Abstract

In order to reduce the permafrost thaw disease of asphalt pavement caused by heat absorbing and conduction in permafrost regions, pass-resistance coupling structure is designed and its working principle is introduced. On the basis, heat resistance effect of pass-resistance coupling structure is analyzed by numerical analysis method. Thermal analysis results show that pavement structure of heat resistance coordinates with appropriate thickness of gravel road embankment can well prevent heat from incoming to permafrost soil in summer and can fully release heat in winter for the reason of thermal semiconductor effect of level gravel layer and chimney effect of incline gravel layer. Thus the total heat input can be significantly reduced. The melting depth and temperature field asymmetry are greatly reduced. So the occurrence probability of longitudinal cracks and other pavement diseases can be greatly reduced. It also has important theoretical and practical significance to the construction and maintenance of road construction in permafrost area in the future.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yongqiang Zhong
PY  - 2015/11
DA  - 2015/11
TI  - Pass-Resistance Coupling Road Structure Research in Permafrost Region
BT  - Proceedings of the 2015 International Conference on Architectural, Civil and Hydraulics Engineering
PB  - Atlantis Press
SP  - 425
EP  - 431
SN  - 2352-5401
UR  - https://doi.org/10.2991/icache-15.2015.82
DO  - 10.2991/icache-15.2015.82
ID  - Zhong2015/11
ER  -