Hydrodynamic Simulation of Flood Inundation Caused by Piping-Included Failure of The Kluet Dam
- DOI
- 10.2991/978-94-6463-952-0_20How to use a DOI?
- Keywords
- Dam break; piping failure; flood modelling; HEC-RAS; hydrodynamic
- Abstract
The planned construction of the Kluet Dam in South Aceh Regency is projected to provide strategic benefits for flood control, particularly given that the region recorded the highest flood frequency in Aceh Province in 2023. Although the dam is designed to serve critical functions such as water supply, irrigation, and hydropower generation, its structural failure may lead to catastrophic downstream impacts, including significant threats to human life, infrastructure, and economic stability. This study examines the potential impacts of dam failure due to piping mechanisms through two-dimensional hydrodynamic modeling using HEC-RAS. Six failure scenarios were simulated at three breach points under two discharge conditions—Q1000 and the Probable Maximum Flood (PMF). The analysis focuses on the extent of flood inundation and the dynamic behavior of flow in downstream areas. The results indicate that higher discharge volumes lead to broader inundation areas, deeper floodwaters, and increased flow velocities, particularly in the immediate downstream areas close to the breach point. The breach at the middle section under PMF conditions produced the most severe impacts, resulting in an inundation area of 70.76 km2, with a maximum water depth of 40.981 m in the upstream cross-section and 11.77 m in the downstream cross-section. Flow velocities reached up to 20.167 m/s upstream and 7.156 m/s downstream. These findings offer critical insights into flood propagation patterns and support the development of effective risk mitigation and emergency response strategies for vulnerable regions. The modeling approach can be replicated in other high-risk dam sites to support disaster risk reduction planning.
- Copyright
- © 2025 The Author(s)
- Open Access
- Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.
Cite this article
TY - CONF AU - Diyatura Syahna AU - Eldina Fatimah AU - Muhammad Fauzi AU - Marlina Marlina PY - 2025 DA - 2025/12/26 TI - Hydrodynamic Simulation of Flood Inundation Caused by Piping-Included Failure of The Kluet Dam BT - Proceedings of the 6th Aceh International Symposium on Civil Engineering (AISCE 2025) PB - Atlantis Press SP - 234 EP - 248 SN - 2352-5401 UR - https://doi.org/10.2991/978-94-6463-952-0_20 DO - 10.2991/978-94-6463-952-0_20 ID - Syahna2025 ER -