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Deepwater grouting anchor and construction method

A grouting, deep water technology, applied in anchor points, anchoring arrangements, infrastructure engineering and other directions, can solve the problems of unstable bearing capacity, difficult to control the shape of grouting anchor body, etc., to ensure stability and reduce the risk of debonding , safe and good effect

Pending Publication Date: 2021-12-31
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a deep-water grouting anchor and its construction method to solve the problems of difficulty in controlling the shape of the existing grouting anchor body and unstable bearing capacity in view of the above deficiencies

Method used

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  • Deepwater grouting anchor and construction method
  • Deepwater grouting anchor and construction method

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0031] like Figure 1-5 As shown, a deep-water grouting anchor includes an anchor body 1, an anchor cable and a grouting pipe 2, and an elastic-plastic restraint sleeve 14;

[0032] The upper end of the anchor body is connected with the anchor cable, the upper end of the anchor body is provided with a grout inlet 111 for connecting with the grouting pipe, and several grout outlets 113 are arranged on the anchor body, and the grout outlet and the grout inlet are arranged in the anchor body The pulp passing channel 112 is connected;

[0033] The elastic-plastic constraining sleeve includes an elastic-plastic constraining membrane and a terminal fixing assembly. The elastic-plastic constraining membrane is cylindrical, wrapped around the outer periphery of the anchor body and co...

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Abstract

The invention relates to a deepwater grouting anchor and a construction method. The deepwater grouting anchor comprises an anchor body, an anchor cable, a grouting pipe and an elastic-plastic constraint sleeve body. The upper end of the anchor body is connected with the anchor cable, a slurry inlet is formed in the upper end of the anchor body, a slurry outlet is formed in the anchor body, and the slurry outlet is communicated with the slurry inlet through a slurry passing channel in the anchor body; the elastic-plastic constraint sleeve body comprises an elastic-plastic constraint film and an end fixing assembly, wraps the periphery of the anchor body, covers the grout outlet and seals the grout outlet. End fixing assemblies are arranged at the two ends of the elastic-plastic constraint film and fix the two ends of the elastic-plastic constraint film to the anchor body by extrusion, so that a gap between the elastic-plastic constraint film and the anchor body is sealed, and slurry is prevented from overflowing. During grouting, under the action of grout pressure, the elastic-plastic constraint sleeve body elastically expands firstly, grout is filled to enable the grout to surround the anchor body, and the grout at the elastic-plastic constraint sleeve body forms a grouting coagulated block along with gradual increase of the injected grout.

Description

technical field [0001] The invention relates to the field of deep underwater permanent anchoring, in particular to a deep water grouting anchor and a construction method. Background technique [0002] Due to the shortage of land resources, marine energy development is becoming more and more important. During the service period of deep sea floating platform, it needs to be fixed in a certain position by mooring device. Four types of mooring devices commonly used in deep water areas include: barrel suction anchor, normal bearing anchor, suction penetration plate anchor and torpedo anchor. The construction process of cylindrical suction anchor, normal bearing anchor and suction penetration plate anchor is relatively complicated. [0003] The principle of the torpedo anchor is: release it at a predetermined height above the seabed, relying on its own weight and kinetic energy acquired during free fall to penetrate into the seabed sediment. The construction of torpedo anchors ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B21/26B63B21/20B63B21/50E02D5/74E02D15/04E02D15/06
CPCB63B21/26B63B21/20B63B21/50E02D5/74E02D15/04E02D15/06
Inventor 吴学震李大勇韦建刚蒋宇静姜杰
Owner FUZHOU UNIV
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