Journal of Advanced Informatics in Water, Soil, and Structure

Journal of Advanced Informatics in Water, Soil, and Structure

Effect of Inclination and Stiffness of Asphalt Concrete Core on Analysis of Rockfill Dams

Document Type : Research Article

Authors
Seyed Ali Asghari Pari
Seyed Amin Asghari Pari
Department of Civil Engineering, Faculty of Engineering, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran
10.22048/wss.2025.502074.1017
Abstract
Asphalt concrete cores were first used as an impervious element in rock-fill dams in 1948. Although clay soil is abundant and has low permeability, the low shear resistance, long construction time, high material volume requirement, led to an increasing tendency to use asphalt concrete cores. In recent years, with the advancement of computer applications, the use of numerical methods in solving geotechnical problems, has significantly developed. This study compares the performance of vertical and inclined asphalt cores in a rockfill dam under construction and in a steady state condition using the GeoStudio 2021 software. Furthermore, dynamic and static analysis has been conducted on the rockfill dam to investigate the core's stiffness effects. The results indicate that the inclined core experiences less settlement at the end of the construction compared to the vertical core. However, its horizontal displacement is greater due to its position in the upper part of the dam.
Keywords
Asphalt Concrete Core
Rockfill Dam
Static Analysis
Dynamic Analysis
Geostudio

Subjects

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  • Receive Date 01 February 2025
  • Revise Date 30 July 2025
  • Accept Date 13 August 2025
  • First Publish Date 13 August 2025
  • Publish Date 01 May 2025