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
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id	my-uitm-ir.17911
record_format	uketd_dc
spelling	my-uitm-ir.179112022-04-14T07:30:45Z Effects of flow and sediment discharge on local scour around cylindrical pier at channel bend / Mohd Fais Mohd Noor 2016-01 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 https://ir.uitm.edu.my/id/eprint/17911/ https://ir.uitm.edu.my/id/eprint/17911/2/TM_MOHD%20FAIS%20MOHD%20NOOR%20EC%2016_5.pdf text en public mphil masters Universiti Teknologi MARA Faculty of Civil Engineering
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
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
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
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
granting_institution	Universiti Teknologi MARA
granting_department	Faculty of Civil Engineering
publishDate	2016
url	https://ir.uitm.edu.my/id/eprint/17911/2/TM_MOHD%20FAIS%20MOHD%20NOOR%20EC%2016_5.pdf
_version_	1783733623040507904

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

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