Introducing Sand Bypass System and feasibility study of its application to Iran's Makran ports

Due to coastal areaschr(chr('39')39chr('39')) dynamic nature, sediment transport frequently changes the shape and morphology of coastal profiles. During the time, coastal areas adjust their sedimentation regimes to such changes. Although constructing structures such as breakwaters and jetties in coastal areas results in disorder in their natural sedimentation regime. To restore the natural regime, Sand Bypassing Systems (SBS) has been introduced and employed for near a century in countries such as Australia and USA. This study aims to assess the possibility of implementing SBS around ports of Iranchr(chr('39')39chr('39'))s Makran coasts. In this regard, first, components of SBS are described. Then, the successful worldwide examples of the established systems and the sediment transport pattern around the ports of Iranchr(chr('39')39chr('39'))s Makran coasts were studied. Finally, by providing general guidelines for using this system in the studied area, results of numerical modeling were also used for two ports of Beris and Ramin to propose SBS in detail.