Dredging Engineering, Trenching & Deepsea Mining

achinery for the treatment of soil and/or bulk goods are constituting an interface between Mechanical Engineering and Civil Engineering. Within this framework one must think of dredging machinery, tunnel drilling machines and equipment for the treatment of bulk goods. This field comprises excavation, transport and sedimentation processes of soil, rock and bulk goods that are brought about by human intervention and controlled by means of the appropriate machinery. The purpose in this is to realize or maintain "constructions" and to mine, transfer or treat building materials or ores. Examples of the constructions mentioned above are: ports, channels, land reclamation, cores of dykes and (drilling) tunnels. Examples of the treatment of materials are: soil treatment, mixed heap systems and the separation of materials when mining minerals. Examples of transference are: the transshipment of bulk materials, conveyor belts in the mining industry and hydraulic transport of solids. An important development in this is the drilling of tunnels in "feeble" ground.

The designing of and working with the equipment mentioned above is primarily determined by physical processes, such as loosening up rock, soil or bulk materials, vertical and horizontal transport, positioning in the means of transport, treatment and positioning of the material in a desired geometry.

The fundamental research focusses on the cutting processes in sand, clay and rock, stationary and non-stationary flow of mixtures through pipelines, the sedimentation in hoppers, mixture forming in cutterheads, the behavior of cutter dredgers under offshore conditions, while more applied research has been carried out on many different subjects usually in cooperation with the dredging industry.

When designing machinery, a large number of restrictions play an important part. They all relate to local circumstances, such as the availability of facilities, the condition of the soil or bulk goods, the availability of resource-rich areas for the purpose of elevation, dumping sites for the removal of materials from digged-in constructions, wind and weather conditions, environmental requirements, available energy and a large number of other technical, administrative and economic restrictions. Furthermore, it is required to possess a profound insight into the availability of highly sophisticated mechanical constructions that often have to operate under heavy and dynamic load conditions due to the aggressive environment.

The courses of this specialisation are:

For research on Dredging goto: Dredging Engineering