Finite Element Modeling to Predicting Rutting in Flexible Pavements under Overloading
DOI:
https://doi.org/10.56294/sctconf2024822Keywords:
Axle Load, Finite Element Method, Rut Depth; Core Extraction, Overloading, Abaqus Software ProgramAbstract
Road infrastructure is seriously threatened by heavy vehicle overloading, causing substantial damage, particularly rutting. This study uses advanced finite element analysis (FEA) techniques to improve pavement performance prediction. Six models were created using the ABAQUS/CAE program to evaluate the rutting performance of flexible pavement under overloaded conditions. These models simulated the existing pavement design and a proposed design, each subjected to three axle load configurations: single axle-single tire, tandem axle-dual tire, and tridem axle-dual tire. The research includes conducting surveys on traffic volume and axle load, to precisely evaluate the current traffic situation and identify problems associated with overloading. Core extractions enabled a thorough comparison of the existing pavement's thickness, density, and material characteristics with the proposed design. Based on these findings, a new design for a flexible pavement was developed, focusing on enhancing its ability to withstand rutting. The analysis determines that the existing pavement cannot withstand overloading vehicles, necessitating a 6,67 % increase in the thickness of the surface, a 37,5 % increase in the thickness of the binder, a 50 % increase in the thickness of the base, and a 32 % increase in the thickness of the subbase layers. Significantly, these modifications and improvements to material qualities were discovered to effectively decrease rut depth, an important factor in the durability and performance of pavement
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Copyright (c) 2024 Zainab M. Aljaleel, Nahla Y. Ahmed, Yahya K. Atemimi (Author)
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