1.Cutter-suction Vessel
A cutter-suction dredger’s (CSD), suction tube has a cutting mechanism at the suction inlet.
2.Trailing suction Vessel
A trailing suction hopper dredger (TSHD), trails its suction pipe when working. The pipe is fitted with a dredge drag head, loads the dredge spoil into one or more hoppers in the vessel.
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