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:	http://ir.uitm.edu.my/id/eprint/17911/ http://ir.uitm.edu.my/id/eprint/17911/2/TM_MOHD%20FAIS%20MOHD%20NOOR%20EC%2016_5.pdf

id	uitm-17911
recordtype	eprints
spelling	uitm-179112018-10-11T03:23:24Z http://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 Thesis NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/17911/2/TM_MOHD%20FAIS%20MOHD%20NOOR%20EC%2016_5.pdf Mohd Noor, Mohd Fais (2016) Effects of flow and sediment discharge on local scour around cylindrical pier at channel bend / Mohd Fais Mohd Noor. Masters thesis, Universiti Teknologi MARA.
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
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	http://ir.uitm.edu.my/id/eprint/17911/ http://ir.uitm.edu.my/id/eprint/17911/2/TM_MOHD%20FAIS%20MOHD%20NOOR%20EC%2016_5.pdf
first_indexed	2023-09-18T22:59:19Z
last_indexed	2023-09-18T22:59:19Z
_version_	1777418066903171072

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

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