Spud for cutter suction dredger ship, has tensioned wires extending between ship and stud pole for absorbing forces from stud carriage

摘要

Two resilient elements held under tension in their length direction are secured between the ship and stud pole (3) in order to absorb forces from the stud carriage. These elements compensate each other when the pole is not subjected to a load. At least one of the elements has a means for limiting the tension in it once a given maximum force on the stud carriage has been reached. The resilient elements are preferably steel wires (40, 41) connected to the ship via hydraulic cylinders (32, 33) used to tension them. The tension limiter comprises a piston accumulator connected to the relevant hydraulic cylinder. The stud pole is a vertical one mounted in a carriage which can rotate a limited extent about a horizontal cross-direction axle.