Power anchor increasing penetration depth and improving anti-pullout performance

Abstract

The invention discloses a power anchor increasing the penetration depth and improving the anti-pullout performance. The power anchor comprises an anchor body, the front end of the anchor body is provided with a tapered anchor head, and the tail portion of the anchor body is provided with a balance wing plate; the power anchor further comprises an anti-pullout wing plate located between the anchorhead and the balance wing plate, the front end of the anti-pullout wing plate is hinged to the anchor body through a hinging mechanism, the inner side of the anti-pullout wing plate is fixed to the anchor body through an expansion mechanism, and a flared gap is formed between the anti-pullout wing plate and the anchor body. The power anchor has the advantages that by retracting the anti-pullout wing plate, arranging a propulsion mechanism and the like, in the penetration process, the dropping kinetic energy of the power anchor is effectively increased, and the penetration depth is increased; by opening the anti-pullout wing plate, arranging a grouting mechanism and the like, in the pulling-up process, the stress surface of the power anchor is effectively enlarged, and soil is effectively solidified, so that the anti-pullout performance is improved.

Description

technical field [0001] The invention relates to a dynamic anchor, in particular to a dynamic anchor with increased penetration depth and pull-out resistance, belonging to the technical field of marine engineering. Background technique [0002] In recent years, marine floating structures have been widely used in the field of marine engineering, such as offshore floating oil and gas platforms, new energy power generation devices, etc. Floating structures have the advantages of adapting to complex marine geological conditions, being able to be used in relatively large water depths, and being quick and easy to construct. The construction of a floating offshore platform involves many aspects, among which the mooring system is the key to fix the floating structure and give full play to its functions. The mooring system consists of an anchor foundation and an anchor chain. The commonly used anchor foundations include drag anchors, flat anchors, suction anchors and dynamic anchors....

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, the bearing capacity provided by the dynamic anchor mainly depends on the self-weight of the anchor body and the friction force between the anchor body and the soil, but combined with engineering practice, the hardness of the seabed and the kinetic energy obtained by the dynamic anchor falling will vary. Affecting its penetration depth, the external structural characteristics of the dynamic anchor will affect its uplift bearing performance, which will affect the bearing capacity of the dynamic anchor

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