CSDs are always stationary when they are working – even if they are self-propelled. To lock the vessel into a stationary position, a CSD generally has two spud poles. One spud pole (the auxiliary spud) passes straight through the vessel, whilst the other, the working spud, is mounted on a movable spud carriage, which can […]
WHAT IS A SPUD POLE? Read More »
The desired production rate of a CSD will determine the design, size and type of soil the vessel can dredge. CSDs have a high accuracy and a continuous rate of production whether they are standard vessels or custom-made, whether they are being used for dredging rock or sand and gravel, or for construction and reclamation
WHAT INFLUENCES A CSD’S PRODUCTION RATE? Read More »
The cutter head, with a half dozen ‘toothed blades’, is one of the most crucial parts of this unique type of equipment. These teeth come in a variety of types, like wide or narrow chisels which are used for cutting sand, peat and soft clay or teeth with pick points which are used for cutting
HOW DOES THE CUTTER HEAD WORK? Read More »
CSDs can be used for land reclamation, for deepening harbors and for the construction and expansion of ports and navigational channels or for pipeline trenching in the seabed. When the dredged material is being used for land reclamation, the distance between the dredging and disposal areas is usually shorter than the distances covered by trailing
WHEN ARE CSDS USED? Read More »
All CSDs are equipped with a rotating cutter head, which is able to cut hard soil or rock into fragments. The cutter head is a rotating mechanical device, mounted in front of the suction head and rotating along the axis of the suction pipe. The cut soil is then sucked in by dredge pumps. CSDs
HOW DOES THE CSD WORK? ARE CSDS FLEXIBLE? Read More »
