(2014), “Critical Review of Flexible Pavement Performance Models”, Korean Society of Civil Engineers (KSCE), Journal of Civil Engineering, Springer, Vol. The Baltic Journal of Road and Bridge Engineering. Influence of compaction temperature on the properties of Marshall Specimens. Effect of anisotropic base/interlayer on the mechanistic responses of layered pavements, Computers and Geotechnics, 65, pp. A Detailed Study of Cbr Method for Flexible Pavement Design, International Journal of Engineering Research and Applications, 4 (6), pp. In Transportation Research Record 1388, TRB, Washington D. Use of a Three Dimensional, Dynamic Finite Element Program for Analysis of Flexible Pavement. 4th International Conference on Structural Design of Asphalt Pavements. Asphalt Pavement Design – The Shell Method, Proceedings. African Journal of Environmental Science and Technology, Vol. Fatigue and rutting strain analysis of flexible pavements designed using CBR methods. The general theory of stresses and displacements in layered soil system. Department of Road and Railway Engineering, Norwegian University of Science and Technology.Įthiopian Roads Authority Standard Manuals. A Thesis on Permanent Deformation properties of Asphalt Concrete mixtures. Journal of Society for Transportation and Traffic Studies, Vol. analysis of stress, strain and deflection of pavements using finite element. Taneerananon, Somchainuek, Thongchim, & Yandell. The International Journal of Pavement Engineering and Asphalt Technology, Volume: 15, pp. comparative structural analysis of flexible pavements using finite element method. Therefore, the relative deflection of pavement layer decreases as the pavement depth increases. Large values of deflections indicates an over stressed condition which results in the pavement surface to crack and distortion as a results of fatigue or accumulated plastic deformation. The expected outputs have shown that the displacement or deflection (u z) was as high as 0.38mm in the asphalt surface and gradually decreased as the pavement thickness increased. The analytical method used was the elastic modulus and Poisson’s ratio of the pavement materials as design parameters after CBR results of each layers was obtained. The methodology of this research was finding the sensitivity of the road parameters (dimension, layers thickness, elastic modulus, Poisson’s ratio, loads and pressures) in reducing the major causes of failure in asphalt pavement fatigue cracking and rutting due to vertical surface deflections, the critical tensile strains at the bottom of the asphalt layer and the critical compressive strains on the top of subgrade. Ever Stress Software (ESS) is a numerical analysis technique to obtain the deflection of pavement layers. The objective of this research study is to evaluate the flexible pavement deflections with respect to pavement depth using Software along Jimma to Seka road segment and compare the laboratory results with the Ethiopian Road Authority (ERA) standards. Roads are constructed radiating from the capital city of the country in all direction. Road building in Ethiopia is increasingly in demand to meet medium and long terms development programs.
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