Power anchor increasing penetration depth and improving anti-pullout performance

A technology of penetration depth and dynamic anchor, which is applied in the direction of anchor point, anchor arrangement, transportation and packaging, etc. It can solve the problems affecting the pull-out bearing performance and the bearing capacity of dynamic anchor, so as to improve the falling kinetic energy and increase the penetration depth , the effect of increasing the force surface

Active Publication Date: 2019-06-25
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 an

Method used

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  • Power anchor increasing penetration depth and improving anti-pullout performance
  • Power anchor increasing penetration depth and improving anti-pullout performance
  • Power anchor increasing penetration depth and improving anti-pullout performance

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Embodiment Construction

[0023] The present invention is further illustrated below in conjunction with the accompanying drawings and specific examples, and these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0024] A dynamic anchor with increased penetration depth and pullout resistance, as attached figure 1 , 2 As shown, it includes an anchor body 1, a pull-out wing 2, a hinge mechanism 3, a relaxation mechanism 4, a force receiving body 5, a limit plate 6, a grouting mechanism 7, a propulsion mechanism 8, and an anchor tail protection cover 9.

[0025] The anchor body 1 has a tapered anchor head 11 at the front end and a balance wing 12 at the tail. In this embodiment, the anchor body 1 adopts a hollow cylindrical structure, and concrete is poured inside to increase its own weight; the balance wing plate 12 adopts a similar rectangular structure, which is four vertically arranged, and is evenly welded on the anchor bod...

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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....

Claims

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Application Information

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IPC IPC(8): B63B21/26B63B21/50
Inventor 黄挺赵旭张璟泓侯利军李聪山
Owner HOHAI UNIV
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