Dam break flood inundation modelling for Klang gate dam

Dams play a very vital role in the economy of a country by providing essential benefits like irrigation, hydropower, flood control and mitigation, drinking water and recreation. However in the unlikely and rare event of their failure, these may cause catastrophic flooding in the downstream area whic...

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Main Author:	Zainal Abidin, Nurashikin
Format:	Thesis
Language:	English
Published:	2015
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/53835/1/NurashikinZainalAbidinMFKA2015.pdf
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id	my-utm-ep.53835
record_format	uketd_dc
spelling	my-utm-ep.538352020-09-07T02:13:54Z Dam break flood inundation modelling for Klang gate dam 2015-06 Zainal Abidin, Nurashikin TA Engineering (General). Civil engineering (General) Dams play a very vital role in the economy of a country by providing essential benefits like irrigation, hydropower, flood control and mitigation, drinking water and recreation. However in the unlikely and rare event of their failure, these may cause catastrophic flooding in the downstream area which may result in huge loss and damage to human life and property. In Malaysia, we have not had the experience of any such dam failures. However as the dams in the country get older, we cannot avoid but to face the reality that we have to take notice of the conditions of these dams from the safety point of view. This project report presents flood inundation mapping due to dam break of Klang Gate Dam. The Klang Gate Dam were modelled using a HEC-RAS one-dimensional hydraulic model to capture the hydraulic response of the river and its floodplains in extreme flooding condition due to dam break. Klang Gate Dam has been chosen as the study area where the dam has been classified as a significant high hazard. The purpose of this study is to determine maximum inundation depth of the flood waves, peak discharge and flood wave arrival time at various locations of the downstream valley and to develop flood inundation map depending on the severity of the flood in event of the failure of the Klang Gate Dam by using HEC-RAS. A steady flow HEC-RAS Model is developed for a probable maximum flood (PMF) failure for overtopping mode and the breach parameter of possible worst case scenario were considered in the study. The result showed that the peak discharge due to overtopping failure is 21,272 m3/s with possible maximum velocity of 12 m/s. The result indicated that impact of breach outflow to the downstream area is significant. The finding, could benefit authorities or dam owner in an emergency response plans to prevent catastrophic damage at downstream in case of a dam break occurs. 2015-06 Thesis http://eprints.utm.my/id/eprint/53835/ http://eprints.utm.my/id/eprint/53835/1/NurashikinZainalAbidinMFKA2015.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:86199 masters Universiti Teknologi Malaysia, Faculty of Civil Engineering Faculty of Civil Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) Zainal Abidin, Nurashikin Dam break flood inundation modelling for Klang gate dam
description	Dams play a very vital role in the economy of a country by providing essential benefits like irrigation, hydropower, flood control and mitigation, drinking water and recreation. However in the unlikely and rare event of their failure, these may cause catastrophic flooding in the downstream area which may result in huge loss and damage to human life and property. In Malaysia, we have not had the experience of any such dam failures. However as the dams in the country get older, we cannot avoid but to face the reality that we have to take notice of the conditions of these dams from the safety point of view. This project report presents flood inundation mapping due to dam break of Klang Gate Dam. The Klang Gate Dam were modelled using a HEC-RAS one-dimensional hydraulic model to capture the hydraulic response of the river and its floodplains in extreme flooding condition due to dam break. Klang Gate Dam has been chosen as the study area where the dam has been classified as a significant high hazard. The purpose of this study is to determine maximum inundation depth of the flood waves, peak discharge and flood wave arrival time at various locations of the downstream valley and to develop flood inundation map depending on the severity of the flood in event of the failure of the Klang Gate Dam by using HEC-RAS. A steady flow HEC-RAS Model is developed for a probable maximum flood (PMF) failure for overtopping mode and the breach parameter of possible worst case scenario were considered in the study. The result showed that the peak discharge due to overtopping failure is 21,272 m3/s with possible maximum velocity of 12 m/s. The result indicated that impact of breach outflow to the downstream area is significant. The finding, could benefit authorities or dam owner in an emergency response plans to prevent catastrophic damage at downstream in case of a dam break occurs.
format	Thesis
qualification_level	Master's degree
author	Zainal Abidin, Nurashikin
author_facet	Zainal Abidin, Nurashikin
author_sort	Zainal Abidin, Nurashikin
title	Dam break flood inundation modelling for Klang gate dam
title_short	Dam break flood inundation modelling for Klang gate dam
title_full	Dam break flood inundation modelling for Klang gate dam
title_fullStr	Dam break flood inundation modelling for Klang gate dam
title_full_unstemmed	Dam break flood inundation modelling for Klang gate dam
title_sort	dam break flood inundation modelling for klang gate dam
granting_institution	Universiti Teknologi Malaysia, Faculty of Civil Engineering
granting_department	Faculty of Civil Engineering
publishDate	2015
url	http://eprints.utm.my/id/eprint/53835/1/NurashikinZainalAbidinMFKA2015.pdf
_version_	1747817638284754944

Dam break flood inundation modelling for Klang gate dam

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