Device and method for reducing the angle of inclination of a suction anchor chain

Abstract

The application relates to the field of marine engineering anchoring technology and discloses a device and method for reducing the inclination angle of a suction anchor chain. The device comprises a suction anchor, a soil cutting device, a counterforce device and a buoyancy device. The suction anchor comprises an anchor body, a first anchor eye, a second anchor eye and an anchor chain. The second anchor eye is arranged below the first anchor eye and is independent of the structure of the first anchor eye. The soil cutting device comprises a reciprocating rope, a plurality of soil cutting pieces, a circular ring and a connecting line. The reciprocating rope passes through the second anchor eye to form a reciprocating rope A section and a reciprocating rope B section. The reciprocating rope A section is provided with the plurality of soil cutting pieces. The reciprocating rope B section is connected with the anchor chain through the circular ring and the connecting line. The counterforce device comprises a counterforce anchor and a winch assembly, which is used for driving the reciprocating rope to reciprocate and applying a tension force to the anchor chain. The soil cutting pieces cut the seabed soil, the reciprocating rope gradually sinks, and the anchor chain is synchronously sunk through the circular ring and the connecting line, so that the inclination angle of the anchor chain at the anchor body is reduced, the horizontal bearing capacity of the suction anchor is improved, and the vertical pull-out risk is reduced.

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