Irrigation and Water Engineering

Irrigation and Water Engineering

Hydraulic Simulation of the Failure of the Embankment Dams: (Part 1: Model Development)

Document Type : Original Article

Authors
Amir Reza Kavosizadeh 1
Reza Barati 2
Hossein Saboorkazeran 3
Ali Foroudi 4
1 MSc of Civil Engineering, Ferdowsi University of Mashhad
2 Head of Applied Research Group, Regional Water Authority of Khorasan Razavi,
3 Expert at Water Resources Basic Studies, Regional Water Authority of Khorasan Razavi
4 Assistant Professor, Civil Engineering Department, Quchan University of Technology, Quchan, Iran.
10.22125/iwe.2024.333772.1613
Abstract
In the present study, the hydraulic failure of two embankment dams (the Tabarakabad and Cahcahe dams, the Khorasan Razavi province) has been studied. By modeling the failure phenomenon of the dams, failure parameters, flood routing for different scenarios such as overtopping, piping and sudden failures, zoning maps of velocity and depth of flood wave, arrival time of the flood peak and areas that will be submerged have been considered. In this study, a computer program is developed in the context of the Mathematica software, which with the help of the BREACH software results to analysis gradual failure of the dams through an iterative process. Minimum and maximum roughness conditions have been considered in the analysis of unsteady flow dam failure in the HEC-RAS software. The results of flood zoning due to different failure scenarios have also been evaluated. It is worth mentioning that in the second part of this article, risk analysis and identification of vulnerabilities will provide.
Keywords
Dam-break
Flood Zoning
Hydraulic Analysis
Routing
Subjects