Affirmation of elastic modulus derived from spectral analysis of surface waves method using artificial neural network

Abdul Ghani, Nur Aina Farahana and Ismail, Norfarah Nadia and Wan Azahar, Wan Nur Aifa and Abd Rahman, Faridah and Wong Azman, Amelia (2022) Affirmation of elastic modulus derived from spectral analysis of surface waves method using artificial neural network. Jurnal Kejuruteraan, 34 (5). pp. 905-913. ISSN 0128-0198 E-ISSN 2289-7526

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Abstract

Pavement modulus is believed as one of the important features to characterize the pavement condition, specifically the pavement stiffness. The value of pavement modulus may be calculated using the existing Witczak mathematical dynamic pavement modulus prediction formulae. However, the equation developed by Witczak is heavily impacted by temperature while underestimating the impact of other mixing factors thus, only offering an adequate approximation for the circumstances for which they were designed. In this study, the Spectral Analysis of Surface Wave (SASW) test data was used to develop an Artificial Neural Network (ANN) that accurately backcalculates pavement profiles in real-time. The pavement modulus calculated from the equation was validated by using ANN developed in Matlab software to avoid any mistakes during calculation based on the equation. Three parameters, shear wave velocity, depth and thickness from SASW test data were used as inputs and elastic modulus calculated using Witczak pavement modulus equation was used as an output to train the models developed in ANN. Five segments of pavement are presented in this paper where almost compromise that the greater the depth, the lesser the shear wave velocity as well as pavement modulus. Nine neural network models were developed in this study. The network architecture of 4-80-4 is the most optimized network with the highest correlation coefficient of 0.9992, 0.9994, 1.0, 0.9996 for validation, testing, training and all respectively. The created ANN models’ final outputs were reasonable and relatively similar to the real output.

Item Type:	Article (Journal)
Uncontrolled Keywords:	SASW; ANN; Pavement Modulus; Network Architecture
Subjects:	T Technology > TE Highway engineering. Roads and pavements T Technology > TE Highway engineering. Roads and pavements > TE210 Construction details. Including foundation, maintenance, equipment T Technology > TE Highway engineering. Roads and pavements > TE250 Pavement and paved roads
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Electrical and Computer Engineering Kulliyyah of Engineering > Department of Civil Engineering Kulliyyah of Engineering
Depositing User:	Dr. WAN NUR AIFA WAN AZAHAR
Date Deposited:	13 Oct 2022 10:24
Last Modified:	13 Oct 2022 10:24
URI:	http://irep.iium.edu.my/id/eprint/99581

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