Stable cross-sectional dimensions for navigation channel in the estuary of Sangatta River, Indonesia

The objectives of this study are: 1) to capture the existing condition of the river channel in Sangatta River estuary, including the bathymetry of the river bed, and the cross-sectional dimensions of the river, 2) to design a stable navigation channel in Sangatta River estuary that allows less maint...

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Autor principal:	Sutarto Tommy
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/38f898472ec34656ba8b9cfeddd1df4c
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spelling	oai:doaj.org-article:38f898472ec34656ba8b9cfeddd1df4c2021-12-02T17:11:57ZStable cross-sectional dimensions for navigation channel in the estuary of Sangatta River, Indonesia2267-124210.1051/e3sconf/202132505003https://doaj.org/article/38f898472ec34656ba8b9cfeddd1df4c2021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/101/e3sconf_icst2021_05003.pdfhttps://doaj.org/toc/2267-1242The objectives of this study are: 1) to capture the existing condition of the river channel in Sangatta River estuary, including the bathymetry of the river bed, and the cross-sectional dimensions of the river, 2) to design a stable navigation channel in Sangatta River estuary that allows less maintenance dredging and improves navigability of the channel during a critical condition when the water level is at the lowest, and 3) to test the effectiveness of the stable cross section in term of the availability of navigable depth. This research is divided into five stages, namely: 1) preparatory stage and preliminary survey, 2) main surveys, 3) hydrological and hydraulic analysis, 4) waterway design, and 5) dredging plan. The hydraulic analysis also includes determining the water level and depth profiles before and after dredging. HEC-RAS software is used to simulate, for each month, the water level and depth profiles in the channel at a critical condition when the sea water level is at low water spring (LWS) coincides with the river flow of 50% probability of occurrence, Q50. A stable channel for Sangatta River estuary is characterized with a bed slope, S = 0.00015, a flow depth, D = 3.6 m, a bed width, b = 76.3 m and a sidewall slope, m = 1.5. The simulation results show that the stable cross sections of the river provide sufficient water depth for navigation, even during the critical condition.Sutarto TommyEDP SciencesarticleEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 325, p 05003 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Environmental sciences GE1-350
spellingShingle	Environmental sciences GE1-350 Sutarto Tommy Stable cross-sectional dimensions for navigation channel in the estuary of Sangatta River, Indonesia
description	The objectives of this study are: 1) to capture the existing condition of the river channel in Sangatta River estuary, including the bathymetry of the river bed, and the cross-sectional dimensions of the river, 2) to design a stable navigation channel in Sangatta River estuary that allows less maintenance dredging and improves navigability of the channel during a critical condition when the water level is at the lowest, and 3) to test the effectiveness of the stable cross section in term of the availability of navigable depth. This research is divided into five stages, namely: 1) preparatory stage and preliminary survey, 2) main surveys, 3) hydrological and hydraulic analysis, 4) waterway design, and 5) dredging plan. The hydraulic analysis also includes determining the water level and depth profiles before and after dredging. HEC-RAS software is used to simulate, for each month, the water level and depth profiles in the channel at a critical condition when the sea water level is at low water spring (LWS) coincides with the river flow of 50% probability of occurrence, Q50. A stable channel for Sangatta River estuary is characterized with a bed slope, S = 0.00015, a flow depth, D = 3.6 m, a bed width, b = 76.3 m and a sidewall slope, m = 1.5. The simulation results show that the stable cross sections of the river provide sufficient water depth for navigation, even during the critical condition.
format	article
author	Sutarto Tommy
author_facet	Sutarto Tommy
author_sort	Sutarto Tommy
title	Stable cross-sectional dimensions for navigation channel in the estuary of Sangatta River, Indonesia
title_short	Stable cross-sectional dimensions for navigation channel in the estuary of Sangatta River, Indonesia
title_full	Stable cross-sectional dimensions for navigation channel in the estuary of Sangatta River, Indonesia
title_fullStr	Stable cross-sectional dimensions for navigation channel in the estuary of Sangatta River, Indonesia
title_full_unstemmed	Stable cross-sectional dimensions for navigation channel in the estuary of Sangatta River, Indonesia
title_sort	stable cross-sectional dimensions for navigation channel in the estuary of sangatta river, indonesia
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/38f898472ec34656ba8b9cfeddd1df4c
work_keys_str_mv	AT sutartotommy stablecrosssectionaldimensionsfornavigationchannelintheestuaryofsangattariverindonesia
_version_	1718381427053035520

Stable cross-sectional dimensions for navigation channel in the estuary of Sangatta River, Indonesia

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