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原文传递 Fortescue Inlet: Offshore Deposition Basins for Navigation Channel Management in Small Craft Inlets

题名：	Fortescue Inlet: Offshore Deposition Basins for Navigation Channel Management in Small Craft Inlets
正文语种：	eng
作者：	Matthew S. Janssen;Laura Lemke;Jon K. Miller;W. Scott Douglas
作者单位：	Davidson Laboratory Stevens Institute of Technology Castle Point on Hudson Hoboken NJ 07030;Davidson Laboratory Stevens Institute of Technology Castle Point on Hudson Hoboken NJ 07030;Davidson Laboratory College of Civil Environmental and Ocean Engineering Stevens Institute of Technology Castle Point on Hudson Hoboken NJ 07030;Office of Maritime Resources New Jersey Dept. of Transportation Trenton NJ 08625
摘要：	A comprehensive case study of the coastal processes for Fortescue Inlet (New Jersey, USA) is presented with the objective of minimizing maintenance dredging of the navigational channel. This study compares the effectiveness of both traditional sedimentation control structures and modified dredging templates, including construction of a new jetty, modification of the length and orientation of an existing jetty, and the use of upland and offshore deposition basins. The alternatives were analyzed using Deflt3D Flexible Mesh. The results indicate that sediment transport near Fortescue Inlet is dominated by wave action with pronounced seasonal variations in wave direction. The site exhibits relatively shallow depths above the depth of closure and pronounced offshore bars. Consequently, much of the sediment transport occurs well offshore (approximately 300 m offshore) and beyond the existing jetty. The results indicate that structural modifications (i.e., relocation or lengthening) of the existing jetty do not improve the sedimentation rate within the channel. Instead, use of offshore deposition basins delivers the most promising improvement, with potential cost savings over 10% over existing strategies.
出版年：	2022
期刊名称：	Journal of Waterway, Port, Coastal and Ocean Engineering
卷：	148
期：	2
页码：	05021019.1-05021019.17