Numerical Analysis of Temperature Field Distribution of Road-bridge Transition Section in Permafrost Region

DOI

10.2991/978-94-6463-728-1_25How to use a DOI?

Keywords

Permafrost regions; road-bridge transition section; temperature field; numerical simulation

Abstract

The COMSOL Multiphysics software is utilized to establish a comprehensive two-dimensional model for analyzing heat transfer and phase change in the transition section of road and bridge located in permafrost region. The temperature distribution of the transition section and subgrade in permafrost region is analyzed considering the global warming. The temperature changes in the transition section and subgrade at different distances from the abutment, with respect to freezing depth, are analyzed. It is observed that: (1) The variation in soil properties and temperature boundary conditions significantly impact the temperature field equilibrium process of the road-bridge transition section. In general, natural foundation achieves thermal equilibrium faster than soil behind the abutment; shallow soil reaches equilibrium quicker than deep soil. Moreover, near-abutment oil exhibits better thermal equilibrium compared to distant regions. (2) The thermal properties of different materials and the temperature boundary at the bridge transition section vary, resulting in a gradual decrease in the temperature field distribution with increasing distance from the abutment. At a farther distance, this influence can be ignored, leading to a gradually uniform temperature field distribution along the longitudinal bridge transition section.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Qian Luo
AU  - Xiyin Zhang
AU  - Xuhao Lv
AU  - Senhu Zuo
AU  - Wanping Wang
PY  - 2025
DA  - 2025/05/19
TI  - Numerical Analysis of Temperature Field Distribution of Road-bridge Transition Section in Permafrost Region
BT  - Proceedings of the 3rd International Conference on Green Building, Civil Engineering and Smart City (GBCESC 2024)
PB  - Atlantis Press
SP  - 242
EP  - 249
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-728-1_25
DO  - 10.2991/978-94-6463-728-1_25
ID  - Luo2025
ER  -