Assessment of sediment accumulation inside the harbour basin in the development plan due to longshore sediment transport (LST) rate. A case study of Genaveh port

Abstract

ABSTRACT In this paper, the hydrographic data, empirical formulas and numerical modelling were used to investigate the longshore sediment transport (LST) rate in the Genaveh port to calculate the sediment accumulation in the harbour basin under the development plan. The Genaveh port is located on the northern coast of the Persian Gulf. Based on the field sediment collection, the type of sediment in this area is fine sand and silty sand. The empirical formulas, LITPACK, and MIKE21-FM were utilised to calculate the LST rate in the region, bathymetric changes in front of the port, and the sediment accumulation in the harbour basin, respectively. The results indicated that the main direction of non-cohesive sediment is from the northwest to the southeast in the region. Moreover, due to the existence of Dareh Gap River, the location of the harbour basin’s mouth is important in reducing sediment accumulation in the harbour basin.