The behaviour of fines released due to dredging

A literature review

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Abstract

In 2001 a DIOC-project was started at Delft University of Technology on the dispersion of fines during sand mining. In this project the behaviour and spreading of fines, which are released through the overflow of a dredging ship, is studied. Laboratory and field studies will be carried out to determine the behaviour and spreading of the fines. However, before any experiments are carried out, a literature study is done to determine the main focus of the subsequent research. This literature study is presented herein. It discusses the whole cycle of dredging, the release of sediment in the water, behaviour of sediment in the water column, sedimentation, erosion and impact on ecology. In the end it is decided that the subsequent research shall focus on two subjects, namely the hindered settling of sand/mud mixtures and the sea/bed interaction.