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Assessment On Flow Characteristics Of Tawau’s Spillway Hydraulic Physical Model

The spillway is among the most important structures of a dam project. It provides the project with the ability to release excess or flood water in a controlled or uncontrolled manner to ensure the safety of the project. It is of paramount importance for the spillway facilities to be designed with su...

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Main Author: Munusamy, Shanbagarani
Format: Monograph
Language:English
Published: Universiti Sains Malaysia 2019
Subjects:
T Technology
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.usm.my/58766/1/Assessment%20On%20Flow%20Characteristics%20Of%20Tawau%E2%80%99s%20Spillway%20Hydraulic%20Physical%20Model.pdf
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spelling my.usm.eprints.58766 http://eprints.usm.my/58766/ Assessment On Flow Characteristics Of Tawau’s Spillway Hydraulic Physical Model Munusamy, Shanbagarani T Technology TA Engineering (General). Civil engineering (General) The spillway is among the most important structures of a dam project. It provides the project with the ability to release excess or flood water in a controlled or uncontrolled manner to ensure the safety of the project. It is of paramount importance for the spillway facilities to be designed with sufficient capacity to avoid overtopping of the dam, especially when an earthfill or rockfill type of dam is selected for the project. High velocity results in low or negative pressure on the spillway slab, scouring and erosion at downstream area. Whereas, negative pressure leads to cavitation and may cause critical damage on spillway structure. This study aims to investigate the flow characteristics along spillway such as water depth, velocity, pressure and energy dissipation on the stilling basin. Tawau Dam’s Spillway is a 1:30 scaled spillway physical model was constructed and assembled in Hydraulic Laboratory of Universiti Sains Malaysia. This study has been conducted on two different flow rate (196 m3 /s, and 392 m3/s) with total of 109 measurement points for each case.To ensure the release flow is safe from causing severe damage on the downstream area, the study was focused on stilling basin as well. Based on the results, hydraulic jump length ,depth and velocity thecurrent Type II stiling basin suitable to used. Lastly, the Case 2 has been recommended to use Type III Stilling Basin for long period assessment. Thus, it can be concluded that the Type II Stilling Basin is suitable for both Case 1 and Case 2. Universiti Sains Malaysia 2019-06-01 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/58766/1/Assessment%20On%20Flow%20Characteristics%20Of%20Tawau%E2%80%99s%20Spillway%20Hydraulic%20Physical%20Model.pdf Munusamy, Shanbagarani (2019) Assessment On Flow Characteristics Of Tawau’s Spillway Hydraulic Physical Model. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Awam. (Submitted)
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
language English
topic T Technology
TA Engineering (General). Civil engineering (General)
spellingShingle T Technology
TA Engineering (General). Civil engineering (General)
Munusamy, Shanbagarani
Assessment On Flow Characteristics Of Tawau’s Spillway Hydraulic Physical Model
description The spillway is among the most important structures of a dam project. It provides the project with the ability to release excess or flood water in a controlled or uncontrolled manner to ensure the safety of the project. It is of paramount importance for the spillway facilities to be designed with sufficient capacity to avoid overtopping of the dam, especially when an earthfill or rockfill type of dam is selected for the project. High velocity results in low or negative pressure on the spillway slab, scouring and erosion at downstream area. Whereas, negative pressure leads to cavitation and may cause critical damage on spillway structure. This study aims to investigate the flow characteristics along spillway such as water depth, velocity, pressure and energy dissipation on the stilling basin. Tawau Dam’s Spillway is a 1:30 scaled spillway physical model was constructed and assembled in Hydraulic Laboratory of Universiti Sains Malaysia. This study has been conducted on two different flow rate (196 m3 /s, and 392 m3/s) with total of 109 measurement points for each case.To ensure the release flow is safe from causing severe damage on the downstream area, the study was focused on stilling basin as well. Based on the results, hydraulic jump length ,depth and velocity thecurrent Type II stiling basin suitable to used. Lastly, the Case 2 has been recommended to use Type III Stilling Basin for long period assessment. Thus, it can be concluded that the Type II Stilling Basin is suitable for both Case 1 and Case 2.
format Monograph
author Munusamy, Shanbagarani
author_facet Munusamy, Shanbagarani
author_sort Munusamy, Shanbagarani
title Assessment On Flow Characteristics Of Tawau’s Spillway Hydraulic Physical Model
title_short Assessment On Flow Characteristics Of Tawau’s Spillway Hydraulic Physical Model
title_full Assessment On Flow Characteristics Of Tawau’s Spillway Hydraulic Physical Model
title_fullStr Assessment On Flow Characteristics Of Tawau’s Spillway Hydraulic Physical Model
title_full_unstemmed Assessment On Flow Characteristics Of Tawau’s Spillway Hydraulic Physical Model
title_sort assessment on flow characteristics of tawau’s spillway hydraulic physical model
publisher Universiti Sains Malaysia
publishDate 2019
url http://eprints.usm.my/58766/1/Assessment%20On%20Flow%20Characteristics%20Of%20Tawau%E2%80%99s%20Spillway%20Hydraulic%20Physical%20Model.pdf
http://eprints.usm.my/58766/
_version_ 1769843286814490624
score 13.251813

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