A Random Finite Element Model for Simulation of the Ruttings of Cold Region Pavements

DOI

10.2991/978-94-6463-556-0_13How to use a DOI?

Keywords

Random finite element model; Frozen soil; Frost heave; Cold region pavement

Abstract

This research introduces an advanced Random Finite Element Model (RFEM) designed to comprehensively simulate the complex behaviors of frozen soil, focusing on the dynamics of phase transitions and their effects on internal stress and vertical displacements. The model uniquely blends the capabilities of Discrete Element Models (DEM) for microstructural analysis and Finite Element Models (FEM) for computational efficiency, enabling a detailed exploration of individual soil phases and their interfacial interactions. The primary application of this RFEM is to investigate the influence of frost action on pavement rutting, emphasizing the coupled thermal-hydro-mechanical responses of subgrade soils under freezing conditions and their impact on pavement structures. Laboratory experiments validate the model’s performance, confirming its ability to replicate the intricate changes in interaction patterns among pavement layers due to frost action and ice lens expansion. This results in increased stress and deformation within these layers. Moreover, the model offers insights into mitigating frost heave effects, such as enhancing base layer thickness, incorporating thermal insulation, or improving subgrade drainage. Overall, this research provides a holistic understanding of the transformative effects of frost action on pavement, guiding more effective design and maintenance strategies.

Copyright

© 2024 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.

Download article (PDF)

TY  - CONF
AU  - Zimeng Lu
AU  - Shaoyang Dong
PY  - 2024
DA  - 2024/10/29
TI  - A Random Finite Element Model for Simulation of the Ruttings of Cold Region Pavements
BT  - Proceedings of the 2024 6th International Conference on Structural Seismic and Civil Engineering Research (ICSSCER 2024)
PB  - Atlantis Press
SP  - 109
EP  - 114
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-556-0_13
DO  - 10.2991/978-94-6463-556-0_13
ID  - Lu2024
ER  -