Toward a Better Understanding of Sediment Dynamics as a Basis for Maintenance Dredging in Nagan Raya Port, Indonesia

The Port of 2 × 110 MW Nagan Raya Coal Fired Steam Power Plant is one of the facilities constructed by the State Electricity Company in Aceh Province, Indonesia. During its operation, which began in 2013, the port has dealt with large amounts of sedimentation within the port and ship entrances. The...

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Main Authors: Muhammad Zikra, Shaskya Salsabila, Kriyo Sambodho
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Fluids
Subjects:
Online Access:https://www.mdpi.com/2311-5521/6/11/397
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author Muhammad Zikra
Shaskya Salsabila
Kriyo Sambodho
author_facet Muhammad Zikra
Shaskya Salsabila
Kriyo Sambodho
author_sort Muhammad Zikra
collection DOAJ
description The Port of 2 × 110 MW Nagan Raya Coal Fired Steam Power Plant is one of the facilities constructed by the State Electricity Company in Aceh Province, Indonesia. During its operation, which began in 2013, the port has dealt with large amounts of sedimentation within the port and ship entrances. The goal of this study is to mitigate the sedimentation problem in the Nagan Raya port by evaluating the effect of maintenance dredging. Field measurements, and hydrodynamic and sediment transport modeling analysis, were conducted during this study. Evaluation of the wind data showed that the dominant wind direction is from south to west. Based on the analysis of the wave data, the dominant wave direction is from the south to the west. Therefore, the wave-induced currents in the surf zone were from south to north. Based on the analysis of longshore sediment transport, the supply of sediments to Nagan Raya port was estimated to be around 40,000–60,000 m<sup>3</sup> per year. Results from the sediment model showed that sedimentation of up to 1 m was captured in areas of the inlet channel of Nagan Raya port. The use of a passing system for sand is one of the sedimentation management solutions proposed in this study. The dredged sediment material around the navigation channel was dumped in a dumping area in the middle of the sea at a depth of 11 m, with a distance of 1.5 km from the shoreline. To obtain a greater maximum result, the material disposal distance should be dumped further away, at least at a depth of 20 m or a distance of 20 miles from the coastline.
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spelling doaj.art-8182403c69c348d5a7a1a578cc20e5c52023-11-22T23:17:34ZengMDPI AGFluids2311-55212021-11-0161139710.3390/fluids6110397Toward a Better Understanding of Sediment Dynamics as a Basis for Maintenance Dredging in Nagan Raya Port, IndonesiaMuhammad Zikra0Shaskya Salsabila1Kriyo Sambodho2Ocean Engineering Department, Institut Teknologi Sepuluh Nopember, Surabaya 60111, IndonesiaOcean Engineering Department, Institut Teknologi Sepuluh Nopember, Surabaya 60111, IndonesiaOcean Engineering Department, Institut Teknologi Sepuluh Nopember, Surabaya 60111, IndonesiaThe Port of 2 × 110 MW Nagan Raya Coal Fired Steam Power Plant is one of the facilities constructed by the State Electricity Company in Aceh Province, Indonesia. During its operation, which began in 2013, the port has dealt with large amounts of sedimentation within the port and ship entrances. The goal of this study is to mitigate the sedimentation problem in the Nagan Raya port by evaluating the effect of maintenance dredging. Field measurements, and hydrodynamic and sediment transport modeling analysis, were conducted during this study. Evaluation of the wind data showed that the dominant wind direction is from south to west. Based on the analysis of the wave data, the dominant wave direction is from the south to the west. Therefore, the wave-induced currents in the surf zone were from south to north. Based on the analysis of longshore sediment transport, the supply of sediments to Nagan Raya port was estimated to be around 40,000–60,000 m<sup>3</sup> per year. Results from the sediment model showed that sedimentation of up to 1 m was captured in areas of the inlet channel of Nagan Raya port. The use of a passing system for sand is one of the sedimentation management solutions proposed in this study. The dredged sediment material around the navigation channel was dumped in a dumping area in the middle of the sea at a depth of 11 m, with a distance of 1.5 km from the shoreline. To obtain a greater maximum result, the material disposal distance should be dumped further away, at least at a depth of 20 m or a distance of 20 miles from the coastline.https://www.mdpi.com/2311-5521/6/11/397wavecurrentsedimentmaintenance dredgingNagan Raya
spellingShingle Muhammad Zikra
Shaskya Salsabila
Kriyo Sambodho
Toward a Better Understanding of Sediment Dynamics as a Basis for Maintenance Dredging in Nagan Raya Port, Indonesia
Fluids
wave
current
sediment
maintenance dredging
Nagan Raya
title Toward a Better Understanding of Sediment Dynamics as a Basis for Maintenance Dredging in Nagan Raya Port, Indonesia
title_full Toward a Better Understanding of Sediment Dynamics as a Basis for Maintenance Dredging in Nagan Raya Port, Indonesia
title_fullStr Toward a Better Understanding of Sediment Dynamics as a Basis for Maintenance Dredging in Nagan Raya Port, Indonesia
title_full_unstemmed Toward a Better Understanding of Sediment Dynamics as a Basis for Maintenance Dredging in Nagan Raya Port, Indonesia
title_short Toward a Better Understanding of Sediment Dynamics as a Basis for Maintenance Dredging in Nagan Raya Port, Indonesia
title_sort toward a better understanding of sediment dynamics as a basis for maintenance dredging in nagan raya port indonesia
topic wave
current
sediment
maintenance dredging
Nagan Raya
url https://www.mdpi.com/2311-5521/6/11/397
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AT kriyosambodho towardabetterunderstandingofsedimentdynamicsasabasisformaintenancedredginginnaganrayaportindonesia