An analytical method that was developed and applied to identify the optimal channel layout and dredging depth for safe navigation in the Mearim Port concept in Brazil.
A number of theories are used (Camp, Groot, Miedema and Vlasblom, Yagi, Braaksma, Ooijens and van Rhee) to determine the overflow losses when loading trailing suction hopper dredgers. The model derived here has several important improvements, including the speed of doing the calculations.
By studying the different mechanisms of sediment movement, solutions were developed to reduce sedimentation in harbours, and thus reduce the need for maintenance dredging.
There are two types of driving force that urge us to assess the effects of dredge-generated plumes, a genuine concern for the environment and the regulations that forbid us to dredge unless we can demonstrate that harm will not be caused to the environment.
For production, sand quality and environmental reasons predicting the amount of the so-called overflow losses when using a trailing suction hopper dredger is very important.
A newly developed procedure to determine the nautical horizon in a typical Fluid-Mud Region is compared with more conventional procedures.
Geochronology analyses are used to characterise sediments and sedimentation rates which can help in planning dredging operations.