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Quasi-static and dynamic analysis of pore water pressure in Azadi earth dams using Abaqus software by Behrang Beiranvand; Mostafa zeinolebadi rozbahani; Ahmad Reza Mazaheri; Mehdi Komasi is a Earth and Planetary Sciences article available to read on EtoBox.

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Seismic analysis of earth and rockfill dams is generally done by two methods, quasi-static and dynamic. However, the quasi-static method provides dam safety with ease of use and simple assumptions. But sometimes it can lead to unsafe and uneconomical results. In the present study, the Rayleigh Damping rule has been used in calculating the pore water pressure of the Azadi earth dam and non-linear quasi-static and dynamic analyses have been used. Also, in numerical analysis, Abaqus software and simple elastoplastic behavior model based on the Mohr-Coulomb criterion have been used. To validate the data of Azadi Dam instrumentation, the pore water pressure of the core due to changes in reservoir water level after impounding was modeled by Abaqus software and compared with the instrumentation results in quasi-static mode. To match the observed and predicted data, multivariate regression and the criterion of the coefficient of explanation have been used. The value of R 2 = 0.9747 indicates a very good agreement between the observed and predicted data. A comparison of research results shows that the pore water pressure in the dynamic analysis is 39% higher than in quasi-static analysis. T

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Author

Behrang Beiranvand; Mostafa zeinolebadi rozbahani; Ahmad Reza Mazaheri; Mehdi Komasi

Publisher

Springer Science and Business Media LLC

Published

2021

Language

EN

Field

Earth and Planetary Sciences (Physical Sciences)