An anti-pull suction bucket foundation and its installation method

Abstract

The invention discloses an uplift suction bucket foundation and an installation method thereof. The suction bucket foundation comprises a suction bucket; and a dead weight sinking system, a water flush sinking system, a reinforcing system and a plurality of layers of annular inclined grooves are further arranged on the periphery of the suction bucket. The method comprises the following steps that1, the dead weight of the suction bucket is increased; 2, the suction bucket sinks due to the dead weight; 3, the suction bucket sinks due to a water flush; 4, the suction bucket is reinforced; and 5,the dead weight of the suction bucket is increased again. According to the uplift suction bucket foundation and the installation method thereof, the annular inclined grooves are additionally formed,water conveying pipes penetrating through the annular inclined grooves are additionally arranged, gravel is placed in the annular inclined grooves so that the dead weight can be increased, the dead weight sinking depth can be increased, the water conveying pipes penetrating through the annular inclined grooves output high-pressure water flow so that the suction penetration resistance can be greatly reduced, rapid sinking can be realized, self-drilling anchor rods are arranged on the annular inclined groove at the uppermost layer so that the effect of the suction bucket can be further stabilized, and the uplift bearing capacity of the suction bucket foundation can be greatly improved.

Description

technical field [0001] The invention relates to an anti-pull suction bucket foundation and an installation method thereof, belonging to the technical field of marine suction bucket foundations. Background technique [0002] The suction barrel foundation is a kind of marine foundation, which is often used as the foundation of offshore platforms and offshore wind power. For offshore platform foundations and multi-legged (three-barrel or four-barrel) offshore wind power foundations, under the action of horizontal loads such as sea wind, waves, and ocean currents, the failure mode of the suction bucket foundation on the windward side is pulling failure, and the failure mode of the suction bucket foundation on the leeward side is The mode is vertical compression deformation. Moreover, the uplift bearing capacity of the suction bucket foundation is much smaller than its compressive bearing capacity, so improving the uplift bearing capacity of the suction bucket foundation is a co...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the improvement of the uplift bearing capacity of the traditional suction bucket foundation is limited by the distance between buckets and the maximum negative pressure sinking depth, as well as the defects of large penetration resistance and difficult sinking of the pullout suction bucket foundation, the invention discloses an anti-lift The specific technical scheme of pulling out the suction bucket foundation and its installation method is as follows:

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