CN219428322U - Suction anchor for ocean engineering construction - Google Patents

Abstract

The utility model discloses a suction anchor for ocean engineering construction, which is characterized in that a circle of vertical rib plates are arranged outside a cylinder body, so that the buckling strength of the integral suction anchor penetrating into a soil layer with a softer surface layer meets the requirement, and the penetrating reliability of a structure is effectively improved. Simultaneously, water pipe assembly that arranges on the inside top can annotate the drainage from 4 directions, can eliminate the interior soil plug arch of injection soil body through interior spraying when the injection, causes the pipeline tip to block up when placing the muddy water discharge, and the suction anchor can be realized to the final penetration of bucket top close to mud face to the drainage of annotating simultaneously in turn, improves the scour protection ability of whole anchor point. This patent simple structure, simple to operate has better comprehensive economic benefits.

Description

Suction anchor for ocean engineering construction

Technical Field

The utility model relates to the technical field of ocean engineering construction, in particular to a suction anchor for ocean engineering construction.

Background

With the continuous acceleration of human use on ocean resources, the deep water area is not suitable for the traditional fixed structure due to the fact that the water depth exceeds 500m, the traditional fixed structure adopts a floating structure, if a large-grabbing anchor is adopted, stable grabbing force cannot be ensured, and a very long mooring anchor chain is required. At present, a suction anchor is used as a mooring device in deep water mooring, the suction anchor is also called a suction barrel, the suction anchor is of a barrel structure with an open bottom and a closed top, a water pumping hole is formed in the top of the barrel, sinking and penetration are carried out by self weight and negative pressure formed after water pumping, and load of an upper structure is born after the suction anchor reaches a designated position. The installation of the suction anchor does not need special piling equipment, and the pump prying block with light weight is simple in construction and can be suitable for deep water and ultra-deep water areas. However, the use of suction anchors in areas where the surface layer is softer requires penetration to a greater depth, and if the diameter of the tub is increased, the material consumption increases, resulting in poor economy. Meanwhile, the surface soil body is soft, and buckling deformation is easy to cause when the suction cylinder is initially penetrated.

In order to solve the problems, we propose a suction anchor for ocean engineering construction.

Disclosure of Invention

In order to overcome the defects of the prior art, the suction anchor for ocean engineering construction provided by the utility model has the advantages that compared with the prior art, the suction anchor can be penetrated into a soft soil layer on the surface layer to meet the requirement on buckling strength, the penetrating reliability of the structure is effectively improved, the arching of an inner soil plug penetrating into a soil body is eliminated through inner spraying during penetrating, the blocking of muddy water is prevented, and the suction anchor can be finally penetrated into a barrel top close to a mud surface.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the suction anchor for ocean engineering construction comprises a barrel cover component, an anchor barrel component and a submerged pipe system component, wherein the barrel cover component is a structure formed by a round steel plate and reinforcing ribs, the barrel cover component is formed by a top cover, rib plates, guide sleeves and reinforcing rings, the top cover is a raw plate made of steel plates with certain thickness, holes for the penetration of the submerged pipe system component are formed in the center of the top cover, the rib plates which are radially arranged and transversely arranged are uniformly and vertically welded at the upper end of the top cover, the reinforcing rings are arranged in the center of the top cover, and the guide sleeves are arranged at four corners of the center of the top cover; the anchor cylinder assembly consists of a cylinder body and a vertical rib plate, the upper end of the cylinder body and the lower part of the top cover are concentrically arranged and welded into a whole, the vertical rib plate is annularly distributed on the outer wall of the cylinder body, the vertical rib plate is made of steel plates, and the lower part of the vertical rib plate has a certain taper, so that resistance is reduced during penetration; the submerged pipe system component consists of a base plate and a water pipe component, wherein the lower part of the base plate is connected with the water pipe component in a welded mode, and the water pipe component penetrates into the top cover to form 4 radial branches which are welded and fixed with the inside of the cylinder body.

Preferably, the reinforcing ring is a rolled steel pipe nipple.

Preferably, the radially arranged rib plates are provided with hanging points meeting shackle connection at the positions close to the edges of the suction anchors.

Preferably, the guide sleeve adopts a steel structure in the form of an upper horn mouth, so that the insertion and installation of the equipment support legs are realized, and the pump prying block can be tightly attached to the base plate after alignment, thereby meeting the construction requirements.

Preferably, the cylinder is an elongated cylinder made of a steel plate, the lower end of the outer part of the cylinder is welded with a lifting lug, the lifting lug is made of a steel plate through cutting and assembling welding, and the dragging force of the lifting lug is embedded into the cylinder along the plate.

Preferably, the base plate is a square base plate with holes, and the base plate is matched with an interface of a pump pry block for construction.

Preferably, the 4 branches of the water pipe assembly are provided with a plurality of water ports which can realize multi-point suction and spray.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the vertical rib plates are arranged outside the cylinder body, so that the buckling strength of the integral suction anchor penetrating into the soil layer with a softer surface layer meets the requirement, and the penetrating reliability of the structure is effectively improved; the water pipe assembly arranged on the top of the inside of the barrel body can be used for injecting and draining water from 4 directions, so that the arch of an inner soil plug penetrating into soil body can be eliminated through inner spraying during injection, the end part of a pipeline is prevented from being blocked when muddy water is drained, meanwhile, the alternate injection and drainage can realize that a suction anchor finally penetrates into the mud-tight surface of the barrel top, and the anti-scouring capability of the whole anchor point is improved; the device has simple structure, convenient installation and operation and better comprehensive economic benefit.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Like parts are designated with like reference numerals throughout the drawings. In the drawings:

FIG. 1 is a schematic overall construction of a preferred embodiment of the present utility model;

FIG. 2 is a schematic diagram of the top structure of a preferred embodiment of the present utility model;

FIG. 3 is a schematic diagram showing the internal structure composition of a preferred embodiment of the present utility model;

fig. 4 is a perspective schematic view of the overall structure of the preferred embodiment of the present utility model.

Wherein, the corresponding relation between the reference numerals and the components in the figures 1-4 is as follows:

1. a barrel cover assembly; 11. a top cover; 12. a hanging point; 13. rib plates; 14. guide sleeve; 15. a reinforcing ring; 2. an anchor cylinder assembly; 21. a cylinder; 22. vertical rib plates; 23. lifting lugs; 3. a submerged piping assembly; 31. a base plate; 32. a water pipe assembly.

Description of the embodiments

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the utility model, fall within the scope of protection of the utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

A suction anchor for ocean engineering construction according to an embodiment of the present utility model will be described in detail with reference to fig. 1 to 4.

As shown in fig. 1-4, the suction anchor for ocean engineering construction comprises a barrel cover assembly 1, an anchor barrel assembly 2 and a sinking tubular system assembly 3, wherein the barrel cover assembly 1 is a structure formed by a round steel plate and reinforcing ribs, the barrel cover assembly 1 consists of a top cover 11, a rib plate 13, a guide sleeve 14 and reinforcing rings 15, a hole for allowing the sinking tubular system assembly 3 to penetrate is formed in the center of the top cover 11, the rib plate 13 which is radially arranged and transversely arranged is uniformly and vertically welded at the upper end of the top cover 11, the reinforcing rings 15 are arranged in the center of the top cover 11, and the guide sleeves 14 are arranged at four corners of the center of the top cover 11; the anchor cylinder assembly 2 consists of a cylinder 21 and vertical rib plates 22, wherein the upper end of the cylinder 21 and the lower part of the top cover 11 are concentrically arranged and welded into a whole, and the vertical rib plates 22 are annularly arranged on the outer wall of the cylinder 21; the sinking pipe system assembly 3 consists of a base plate 31 and a water pipe assembly 32, wherein the lower part of the base plate 31 is welded with the water pipe assembly 32, and the water pipe assembly 32 penetrates into the top cover 11 to form 4 radial branches which are welded and fixed with the inside of the cylinder 21.

In this embodiment, the reinforcing ring 15 is a rolled steel pipe nipple.

In the embodiment, the radially arranged rib plates 13 are provided with hanging points 12 which meet the shackle connection at the positions close to the edges of the suction anchors.

In this embodiment, the guide sleeve 14 is of steel structure in the form of an upper bell mouth.

In this embodiment, the cylinder 21 is an elongated cylinder made of a rolled steel plate, the lower end of the outside of the cylinder 21 is welded with a lifting lug 23, and the pulling force of the lifting lug 23 is embedded into the cylinder 21 along the plate.

In this embodiment, the base plate 31 is a square base plate with holes, and the base plate 31 is matched with an interface of a pump pry block for construction.

The 4 branches of the water line assembly 32 of this embodiment are provided with a plurality of water ports that allow for multi-point pumping and flushing.

The implementation steps of the patent are as follows:

the first step: structural design is carried out according to mooring requirements, plate blanking, rolling and the like are carried out, the barrel cover assembly 1, the anchor barrel assembly 2 and the sinking tubular system assembly 3 are manufactured, then the final design form suction anchors are welded, and the integral hoisting ship is transported to a construction site.

And a second step of: the transport ship is moored to the floating crane ship, a mooring anchor chain connected with a suction anchor is arranged on the floating crane in a lifting manner and is connected with a lifting lug 23, a suction anchor installation pump pry block is arranged at the upper end of a base plate 31, and meanwhile, equipment is aligned with a guide sleeve 14, so that installation position matching is realized; after connection and installation, the floating crane hangs and buckles the suction anchor, the whole hoisting is used for launching, the anchor chain is released along with the lifting and the lowering, the underwater robot assists the suction anchor to take place underwater after entering water, the suction anchor automatically weight to enter mud after reaching the set position of the seabed, at the moment, half of the vertical rib plate 22 is positioned in the seabed soil, and at the moment, negative pressure penetration into the vertical rib plate 22 is performed to be beneficial to protecting the barrel 21 from buckling deformation.

And a third step of: starting the pump pry block to carry out negative pressure suction penetration on the suction anchor, and discharging water in the cylinder 21 through the water pipe assembly 32 to enable the suction anchor to penetrate; when the pipe penetrates into the top cover 11 to be separated from the mud surface by about half a meter, the inner soil plug bulges to prop against the center of the lower part of the top cover 11, and at the moment, the multi-branch water pipe assembly 32 can keep smooth of the submerged pipe system assembly 3, so that water cannot be drained due to blockage of individual openings; if the inner soil plug is propped against and cannot be continuously penetrated, water is injected into the cylinder 21 through the water pipe assembly 32, the middle arch soil plug is broken through multi-point spraying of the water pipe assembly 32, and a mud-water mixture is formed and discharged; stopping after continuing to penetrate to the designed depth, and recovering the pump pry block; the lifting device at the top of the suction anchor is detached by the underwater robot, and then the sealing cover is arranged on the base plate 31 at the top of the suction anchor, so that no influence of water flow exists in the suction anchor during long-term use, the soil body in the suction anchor flows, the whole installation is completed, the other end of the mooring anchor chain is connected with the floating device and preloaded according to the whole project requirement in subsequent construction, the installation is completed, and due to the characteristics of the suction anchor structure, the barrel body has good pulling resistance when being pulled by the single-side anchor chain.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Claims (7)

1. The suction anchor for ocean engineering construction comprises a barrel cover assembly (1), an anchor barrel assembly (2) and a sinking and penetrating pipe system assembly (3), and is characterized in that the barrel cover assembly (1) is a structure formed by a round steel plate and reinforcing ribs, the barrel cover assembly (1) is formed by a top cover (11), rib plates (13), guide sleeves (14) and reinforcing rings (15), holes which are formed in the center of the top cover (11) and meet penetration requirements of the sinking and penetrating pipe system assembly (3), the rib plates (13) which are radially arranged and transversely arranged are uniformly and vertically welded at the upper end of the top cover (11), the reinforcing rings (15) are arranged at the center of the top cover (11), and the guide sleeves (14) are arranged at four corners of the center of the top cover (11); the anchor cylinder assembly (2) consists of a cylinder body (21) and vertical rib plates (22), wherein the upper end of the cylinder body (21) and the lower part of the top cover (11) are concentrically arranged and welded into a whole, and the vertical rib plates (22) are annularly distributed on the outer wall of the cylinder body (21); the submerged pipe system assembly (3) consists of a base plate (31) and a water pipe assembly (32), wherein the lower part of the base plate (31) is connected with the water pipe assembly (32) in a welding mode, and the water pipe assembly (32) penetrates into the top cover (11) to form 4 radial branches and is welded and fixed inside the cylinder body (21).

2. Suction anchor for marine engineering construction according to claim 1, characterized in that the reinforcing ring (15) is a rolled steel pipe nipple.

3. Suction anchor for ocean engineering construction according to claim 1, characterized in that the radial rib plates (13) are provided with hanging points (12) meeting shackle connection close to the edge of the suction anchor.

4. Suction anchor for marine engineering construction according to claim 1, characterized in that the guide sleeve (14) is of steel construction in the form of an upper bell mouth.

5. The suction anchor for ocean engineering construction according to claim 1, wherein the cylinder (21) is an elongated cylinder rolled by a steel plate, a lifting lug (23) is welded at the lower end of the outside of the cylinder (21), and the pulling force of the lifting lug (23) is embedded into the cylinder (21) along the plate.

6. The suction anchor for ocean engineering construction according to claim 1, wherein the base plate (31) is a square base plate with holes, and the base plate (31) is matched with an interface of a pump pry block for construction.

7. Suction anchor for marine engineering construction according to claim 1, characterized in that the 4 branches of the water pipe assembly (32) are provided with a plurality of water openings enabling multipoint suction and flushing.