Evaluation of Empirical Equations to Estimate the Mechanical Properties of Sedimentary Rocks Using Ultrasonic Pulse Velocity (UPV)

Authors: Diyari Abdulalrahman Mohammed1 & Younis Mustafa Alshkane1 & Zozk Kawa Abdalqadir1
1&2Department of Civil Engineering, University of Sulaimani, Iraq
3Civil Engineering Department, College of Engineering, University of Sulaimani, Iraq

Abstract:The Uniaxial Compressive Strength (UCS) and Young’s modulus (E) of sedimentary rocks are the most significant geotechnical parameters for rock classifications and the stability analysis of the foundation of building and underground structures. The UCS and E can be predicted using a non-destructive method such as the Ultrasonic Pulse Velocity (UPV) test. Many empirical equations have been proposed by the researchers to predict the mechanical properties of rock materials using UPV; however, the evaluation of these equations has not been studied yet according to authors’ knowledge. This study aims to find out the most reliable empirical equation to predict the UCS and E using UPV test for sedimentary rocks. The reliability of empirical equation was studied using statistical analysis of data from this study and data of literature. The most reliable empirical equations to predict the UCS and E from UPV for sedimentary rocks have been selected based on R2 and RMSE.

Keywords: Sedimentation, Ultrasonic Pulse Velocity, Empirical Equations, Sedimentary Rocks

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doi: 10.23918/eajse.v4i4p135


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