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Effects of flow and sediment discharge on local scour around cylindrical pier at channel bend / Mohd Fais Mohd Noor

Local scour around bridge piers has been explored extensively in the laboratory. There are many parameters that affect the magnitude of local scour depth at piers such as velocity of the approach flow, depth of flow, width of pier, size and gradation of bed material and others. Therefore, this study...

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Main Author: Mohd Noor, Mohd Fais
Format: Thesis
Language:English
Published: 2016
Online Access:https://ir.uitm.edu.my/id/eprint/17911/2/TM_MOHD%20FAIS%20MOHD%20NOOR%20EC%2016_5.pdf
https://ir.uitm.edu.my/id/eprint/17911/
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spelling my.uitm.ir.179112022-04-14T07:30:45Z https://ir.uitm.edu.my/id/eprint/17911/ Effects of flow and sediment discharge on local scour around cylindrical pier at channel bend / Mohd Fais Mohd Noor Mohd Noor, Mohd Fais Local scour around bridge piers has been explored extensively in the laboratory. There are many parameters that affect the magnitude of local scour depth at piers such as velocity of the approach flow, depth of flow, width of pier, size and gradation of bed material and others. Therefore, this study aims to establish the relationship between the effects of flow and sediment discharge on local scour around cylindrical pier at channel bend. Large physical scale of channel bend was constructed with total area of 6 m width x 7 m length with a 2.25 m radius of curvature (R), 0.9 m channel width (W), radius over width (R/W) ration of 2.5 and 180 degree of bend angle together with relocatable radial measuring equipment to measure local scour depth. The model was filled with 200 mm thick layer of sand with D50 = 0.84 mm. A total of 12 sets of experiments using different flow and sediment matrix and flow without sediment released were carried out. Four scour estimation equations has been selected for evaluation. They are Shen et al (1969), Coleman (1971), Hancu (1971) and Ab. Ghani and Nalluri (b) (1996). From analysis Hancu (1971) yields the best results with 98 percent accuracy followed by the new modified Ab. Ghani and Nalluri (b) equation with 77 percent accuracy… 2016-01 Thesis NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/17911/2/TM_MOHD%20FAIS%20MOHD%20NOOR%20EC%2016_5.pdf (2016) Effects of flow and sediment discharge on local scour around cylindrical pier at channel bend / Mohd Fais Mohd Noor. Masters thesis, thesis, Universiti Teknologi MARA.
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
description Local scour around bridge piers has been explored extensively in the laboratory. There are many parameters that affect the magnitude of local scour depth at piers such as velocity of the approach flow, depth of flow, width of pier, size and gradation of bed material and others. Therefore, this study aims to establish the relationship between the effects of flow and sediment discharge on local scour around cylindrical pier at channel bend. Large physical scale of channel bend was constructed with total area of 6 m width x 7 m length with a 2.25 m radius of curvature (R), 0.9 m channel width (W), radius over width (R/W) ration of 2.5 and 180 degree of bend angle together with relocatable radial measuring equipment to measure local scour depth. The model was filled with 200 mm thick layer of sand with D50 = 0.84 mm. A total of 12 sets of experiments using different flow and sediment matrix and flow without sediment released were carried out. Four scour estimation equations has been selected for evaluation. They are Shen et al (1969), Coleman (1971), Hancu (1971) and Ab. Ghani and Nalluri (b) (1996). From analysis Hancu (1971) yields the best results with 98 percent accuracy followed by the new modified Ab. Ghani and Nalluri (b) equation with 77 percent accuracy…
format Thesis
author Mohd Noor, Mohd Fais
spellingShingle Mohd Noor, Mohd Fais
Effects of flow and sediment discharge on local scour around cylindrical pier at channel bend / Mohd Fais Mohd Noor
author_facet Mohd Noor, Mohd Fais
author_sort Mohd Noor, Mohd Fais
title Effects of flow and sediment discharge on local scour around cylindrical pier at channel bend / Mohd Fais Mohd Noor
title_short Effects of flow and sediment discharge on local scour around cylindrical pier at channel bend / Mohd Fais Mohd Noor
title_full Effects of flow and sediment discharge on local scour around cylindrical pier at channel bend / Mohd Fais Mohd Noor
title_fullStr Effects of flow and sediment discharge on local scour around cylindrical pier at channel bend / Mohd Fais Mohd Noor
title_full_unstemmed Effects of flow and sediment discharge on local scour around cylindrical pier at channel bend / Mohd Fais Mohd Noor
title_sort effects of flow and sediment discharge on local scour around cylindrical pier at channel bend / mohd fais mohd noor
publishDate 2016
url https://ir.uitm.edu.my/id/eprint/17911/2/TM_MOHD%20FAIS%20MOHD%20NOOR%20EC%2016_5.pdf
https://ir.uitm.edu.my/id/eprint/17911/
_version_ 1731229060085841920
score 13.211869

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