Analysis of sediment movement at riverbank : erosion and deposition

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Main Author: Nor Shazida, Bakhari
Other Authors: Nur Liza Rahim
Format: Learning Object
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2015
Subjects:
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/40714
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spelling my.unimap-407142015-12-31T13:23:48Z Analysis of sediment movement at riverbank : erosion and deposition Nor Shazida, Bakhari Nur Liza Rahim Sediment movement Erosion Deposition Water quality Sediment rate Access is limited to UniMAP community. Understanding of river system that have experience various forcing mechanism such as deposition and erosion is a major concern. Deposition impinges directly on many aspects especially agricultural because the study areas are near to paddy field. Due to this problem, a study was carried out to determine the sediment shear stress, critical shear stress and characteristics of sediment load. Sediment shear stress, τo was calculated by Prandtl-Von Karman equation and critical shear stress, τc were figured by calculation depending on plasticity index (PI) and median particle size (D50). Results figured that sediment shear stress, τo at point one value is 5.985×10-3 N/m2, while critical shear stress, τc gave 3.112 N/m2, and 3.131 N/m2 respectively with calculation depending on plasticity index (PI) and median particle size (D50). At the second point, sediment shear stress, τo shows 8.385×10-3 N/m2. Meanwhile, critical shear stress, τc that depends on plasticity index (PI) is equal to 2.574 N/m2 and 3.029 N/m2 that is depend on median particle size (D50). Results for the third point figured that sediment shear stress, τo value is 0.0152 N/m2, while critical shear stress, τc gave 3.489 N/m2, and 3.151N/m2 respectively with calculation depending on plasticity index (PI) and median particle size (D50). Both method at all the three point showed critical shear stress, τc were greater than shear stress, τo (τc>τc). It shows that deposition happened at this study area. Besides of the regular maintenances, soft engineering techniques were suggested to control the deposition process from occur. 2015-12-31T13:23:47Z 2015-12-31T13:23:47Z 2011-04 Learning Object http://dspace.unimap.edu.my:80/xmlui/handle/123456789/40714 en Universiti Malaysia Perlis (UniMAP) School of Environmental Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Sediment movement
Erosion
Deposition
Water quality
Sediment rate
spellingShingle Sediment movement
Erosion
Deposition
Water quality
Sediment rate
Nor Shazida, Bakhari
Analysis of sediment movement at riverbank : erosion and deposition
description Access is limited to UniMAP community.
author2 Nur Liza Rahim
author_facet Nur Liza Rahim
Nor Shazida, Bakhari
format Learning Object
author Nor Shazida, Bakhari
author_sort Nor Shazida, Bakhari
title Analysis of sediment movement at riverbank : erosion and deposition
title_short Analysis of sediment movement at riverbank : erosion and deposition
title_full Analysis of sediment movement at riverbank : erosion and deposition
title_fullStr Analysis of sediment movement at riverbank : erosion and deposition
title_full_unstemmed Analysis of sediment movement at riverbank : erosion and deposition
title_sort analysis of sediment movement at riverbank : erosion and deposition
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2015
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/40714
_version_ 1643799446599761920
score 13.214268