Protection device with movable protection plate for semi-submersible barge bottom-sitting construction and construction method

Abstract

The invention relates to the technical field of hull protection, in particular to a protection device with a movable protection plate for semi-submersible barge bottom-sitting construction and a construction method. The protection device comprises a plurality of scour prevention plates, each scour prevention plate comprises a steel rib frame, each steel rib frame is formed by connecting a plurality of steel rib frame units, each mooring rope is connected with the corresponding steel rib frame unit, and a movable protection plate is hinged to the front edge of each scour prevention plate. A baffle used for limiting the rotating angle of the movable protection plate is further arranged on the anti-scouring plate, and the multiple mooring ropes are connected to a winch; the semi-submersible ship anti-scour protection device can conduct effective anti-scour protection on the periphery of a ship body, is simple in structure, convenient to obtain materials and low in manufacturing cost, canbe prefabricated and assembled in advance on land, can be rapidly assembled with the ship body, improves efficiency, has good anti-scour capacity, conducts re-protection on the front edge position ofan anti-scour plate, and further scouring of the foundation is effectively protected.

Description

technical field [0001] The invention relates to the technical field of hull protection, in particular to a protection device and a construction method for a semi-submersible barge with a movable protection plate for construction on the bottom. Background technique [0002] When the semi-submersible ship is carrying out construction operations on the bottom, due to the influence of waves and currents in the ocean environment, it is easy to scour the bottom foundation of the semi-submersible ship. The bottom stability of submersible ships has been seriously affected. Therefore, the bottom foundation of semi-submersible ships has been scoured and hollowed out, and how to protect them has always been concerned and valued by the engineering community. Because the anti-scour structures in some current bottom protection devices cannot The height is automatically adjusted according to the geological conditions, so the adaptability to different geological conditions is poor; at the s...

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Problems solved by technology

[0003] The present invention aims at the above-mentioned shortcomings existing in the construction of the existing semi-submerged barge while sitting on the bottom, and provides a protective device with a movable protective plate for the construction of the semi-submersible barge. During operation, due to the influence of waves and currents in the marine environment, it is easy to scour the bottom foundation of the semi-submersible barge. When the bottom foundation is severely scoured, scour pits will be formed, which will lead to a decrease in the bearing capacity of the foundation, thus affecting the semi-submersible barge. The technical problem that the bottom stability of the submersible barge is seriously affected, and at the same time solves some technical problems that the anti-scouring structure in the current ship bottom protection device cannot automatically adjust the height according to the geological conditions, so this invention has better adaptability to different geology At the same time, it further solves the technical problem that the front position of the anti-scour plate is easy to be scoured during long-term operation, and the technical problem of poor adaptability to the geological conditions of the operating sea area exists in the prior art

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