Thin-wall steel suction bucket base with reinforcing tubes and mounting method for thin-wall steel suction bucket base

Abstract

The invention discloses a thin-wall steel suction bucket base with reinforcing tubes and a mounting method for the thin-wall steel suction bucket base. The suction bucket base comprises a bucket bodyjet-flow system, wherein the jet-flow system comprises the plurality of reinforcing tubes which are axially arranged at the periphery of the bucket body; water conveying valves are arranged on the tops of the reinforcing tubes for communicating with an external high-pressure water conveying system; and water outlets are formed in the bottoms of the reinforcing tubes. The mounting method comprisesthe following steps: step 1, sinking the suction bucket base under action of dead load; step 2, conveying water into the reinforcing tubes; step 3, correcting errors of the suction bucket base; step 4, sinking under high pressure; step 5, sinking to a specified depth; and step 6, correcting the errors again. The mounting method can be used for directly scattering a bottom soil body, is suitable for the thin-wall steel suction bucket base, increases bucket-end resistance with relatively small extent, and improves strength and buckling resistance of the bucket body through the reinforcing tubes.

Description

technical field [0001] The invention relates to a thin-walled steel suction barrel foundation with a reinforced pipe and an installation method thereof, belonging to the technical field of marine foundation bearing devices. Background technique [0002] Suction barrel foundation is a kind of marine foundation, which has the advantages of fast installation speed and relatively low cost, and is widely used as the foundation of offshore wind power and offshore oil platforms. The foundation of the suction barrel sinks to the specified depth through its own weight and negative pressure. Effectively reducing the sinking resistance during the sinking process is the key factor for the success of the installation. The method for reducing the sinking resistance of the existing suction barrel foundation is mainly to spray high-pressure water flow inside the barrel, the barrel wall, and outside the barrel to disperse the bottom soil, thereby reducing the sinking resistance. However, th...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the existing problems of low resistance reduction efficiency, only applicable to foundations with large wall thickness, and increased resistance at the bucket end by the load-bearing ring, the present invention provides a thin-walled steel suction bucket with a reinforced tube. The foundation and its installation method, adding reinforcement pipes around the wall of the suction barrel foundation, injecting high-pressure water through the reinforcement pipes to disperse the lower soil during the sinking process of the suction barrel foundation, thereby reducing the sinking resistance and achieving the purpose of rapid sinking

Images