CN220620112U - Self-elevating booster station and scour prevention device thereof - Google Patents

Abstract

The utility model relates to the technical field of offshore wind power generation and discloses a self-elevating booster station and an anti-scouring device thereof, which comprise a main grouting pipe, an inner distribution ring pipe, a plurality of outer distribution pipes and a plurality of grouting pipes, wherein the outer distribution pipes are arranged at intervals along the periphery of the inner distribution ring pipe, one end of each outer distribution pipe is communicated with the corresponding inner distribution ring pipe, the other end of each outer distribution pipe extends to the side far away from the corresponding inner distribution ring pipe, the grouting pipes are arranged at intervals along the extending direction of the corresponding outer distribution pipe, the lower ends of the grouting pipes are communicated with the corresponding outer distribution pipes, the upper ends of the grouting pipes extend upwards, grouting holes are formed in the peripheral side surfaces of the grouting pipes, and the main grouting pipes are communicated with the corresponding inner distribution ring pipe. The self-elevating booster station and the scour prevention device thereof have the advantages of simple structure and convenient construction.

Description

Self-elevating booster station and scour prevention device thereof

Technical Field

The utility model relates to the technical field of offshore wind power generation, in particular to a self-elevating booster station and an anti-scouring device thereof.

Background

Wind energy is a clean renewable green energy source, has high development efficiency and good economy, has large-scale development conditions and commercialization prospects, is building wind power stations in countries around the world, and wind power generation technology is rapidly developed. For the self-elevating booster station structure, the large-scale floating crane is not required to hoist the upper assembly, and the piling ship is not required to pile, so that the self-elevating booster station structure has certain economic benefit in the future.

Disclosure of Invention

Aims at solving at least one of the technical problems existing in the prior art. The utility model provides a self-elevating booster station and an anti-scouring device thereof, which have simple structure and convenient construction.

In order to achieve the above object, the utility model provides an anti-scouring device of a self-elevating booster station, which comprises a main grouting pipe, an inner distribution ring pipe, a plurality of outer distribution pipes and a plurality of grouting pipes, wherein the outer distribution pipes are arranged at intervals along the periphery of the inner distribution ring pipe, one end of each outer distribution pipe is communicated with the corresponding inner distribution ring pipe, the other end of each outer distribution pipe extends to a side far away from the corresponding inner distribution ring pipe, the grouting pipes are arranged at intervals along the extending direction of the corresponding outer distribution pipe, the lower ends of the grouting pipes are communicated with the outer distribution pipes, the upper ends of the grouting pipes extend upwards, grouting holes are formed in the peripheral side surfaces of the grouting pipes, and the main grouting pipes are communicated with the corresponding inner distribution ring pipe.

Preferably, the grouting pipe is provided with a plurality of grouting holes at intervals along the height direction.

Preferably, the grouting pipe is provided with a plurality of grouting holes at intervals along the circumferential direction.

Preferably, the end of the outer distribution pipe remote from the inner distribution pipe extends downwards.

Preferably, one end of the main grouting pipe is connected to the inner distribution ring pipe, and the other end of the main grouting pipe extends upwards.

Preferably, the main grouting pipe is connected to the inner side of the inner distribution pipe, and the outer distribution pipe is connected to the outer side of the inner distribution pipe.

Preferably, the anti-scouring device further comprises first supporting tubes, the number of the first supporting tubes is corresponding to that of the outer distributing tubes, the first supporting tubes are corresponding to that of the outer distributing tubes in radial positions, and grouting tubes connected to the same outer distributing tubes are connected to the same first supporting tubes.

Preferably, the anti-scouring device further comprises a second supporting rod, and the grouting pipes connected to the same outer distribution pipe and adjacent to the outer distribution pipe are connected through the second supporting rod.

As a preferable scheme, one end of the grouting pipe connected with the outer distribution pipe is a first end, one end of the grouting pipe far away from the grouting pipe is a second end, one end of the second support rod is connected with the first end of the grouting pipe, the other end of the second support rod is connected with the second end of the other grouting pipe, and the grouting pipe is obliquely arranged.

The pile shoe is connected to the lower end of the pile leg, the main grouting pipe and the inner distribution pipe are connected to the inner side of the pile leg, the outer distribution pipe is connected to the outer side of the pile leg, the pile leg is provided with a connecting hole, and the inner distribution pipe is communicated with the outer distribution pipe through the connecting hole.

Compared with the prior art, the self-elevating booster station and the scour prevention device thereof have the beneficial effects that: the top of self-elevating booster station spud leg and self-elevating booster station superstructure fixed connection, the spud shoe is connected with self-elevating booster station stake, there is main grout pipe in the spud leg is inside, wherein, consolidate thick liquid and get into outer distributing pipe through interior distributing groove, in the grout pipe of vertical setting, get into the soil that the spud shoe ballasts in-process backward flow through the grouting hole in the grout pipe, play the reinforcement soil, prevent the effect of erodeing.

Drawings

Fig. 1 is a structural floor plan view of a pile shoe anti-scour scheme in accordance with an embodiment of the present utility model.

Fig. 2 is a plan view of a pile shoe scour protection in accordance with an embodiment of the present utility model.

Fig. 3 is a partial layout of a distribution chute according to an embodiment of the present utility model.

Fig. 4 is a schematic diagram of the opening of a vertical grouting steel pipe according to an embodiment of the present utility model.

In the figure:

1. a pile leg; 2. a main grouting pipe; 3. distributing a ring pipe; 4. pile shoe; 5. grouting pipe; 6. grouting holes; 7. an outer distribution pipe; 8. a first support tube; 9. and a second support tube.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. in the present utility model are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be understood that the terms "connected," "fixed," and the like are used in the present utility model in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; the mechanical connection can be realized, and the welding connection can be realized; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1 to 4, an anti-scouring device of a self-elevating booster station according to a preferred embodiment of the present utility model includes a main grouting pipe 2, an inner distribution pipe 3, a plurality of outer distribution pipes 7 and a plurality of grouting pipes 5, wherein the plurality of outer distribution pipes 7 are arranged at intervals along the outer circumference of the inner distribution pipe 3, one end of the outer distribution pipe 7 is communicated with the inner distribution pipe 3, the other end of the outer distribution pipe 7 extends to a side far away from the inner distribution pipe 3, the plurality of grouting pipes 5 are arranged at intervals along the extending direction of the outer distribution pipe 7, the lower end of the grouting pipe 5 is communicated with the outer distribution pipe 7, the upper end of the grouting pipe 5 extends upwards, grouting holes 6 are formed in the circumferential side surface of the grouting pipe 5, and the main grouting pipe 2 is communicated with the inner distribution pipe 3.

The utility model provides a self-elevating booster station, as shown in fig. 1, includes spud leg 1, shoe 4 and scour protection, and shoe 4 is connected in the lower extreme of spud leg 1, and main grout pipe 2 and interior distribution ring pipe 3 are connected in the inboard of spud leg 1, and outer distribution pipe 7 is connected in the outside of spud leg 1, and spud leg 1 is equipped with the connecting hole, and interior distribution ring pipe 3 communicates with outer distribution pipe 7 through the connecting hole.

According to the scour prevention device of the self-elevating booster station and the self-elevating booster station, the top of the pile leg 1 of the self-elevating booster station is fixedly connected with the upper structure of the self-elevating booster station, the pile shoe 4 is connected with the pile leg 1 of the self-elevating booster station, the main grouting pipe 2 is arranged in the pile leg 1, wherein reinforcing slurry enters the outer distribution pipe 7 through the inner distribution groove, and the outer distribution pipe 7 enters the grouting pipe 5 which is vertically arranged under grouting pressure through the grouting holes 6 in the grouting pipe 5 into the soil which flows back in the ballasting process of the pile shoe 4, so that the soil is reinforced and the scour prevention effect is achieved.

The grouting pipes 5 are arranged on the pile shoe 4 body of the self-elevating booster station, dozens of grouting pipes 5 are densely distributed on one pile shoe 4, the grouting pipes 5 are connected with the grouting pipes 5 by adopting connecting members and are connected with the pile legs 1, so that an integral radioactive structure is formed, and the grouting pipes 5 are prevented from being damaged in the ballasting process. The radioactive structure can improve the rigidity of the structure at the position of the pile shoe 4, reduce the fatigue influence of the joint of the pile leg 1 and the pile shoe 4, ensure the grouting effect, strengthen the soil body at the upper part and the periphery of the pile shoe 4 and achieve the anti-scouring effect. The lower part is fixed on the pile shoe 4, and the top part is at a certain position from the bottom of the ship body.

As shown in fig. 2, a plurality of grouting pipes 5 are arranged at the outer circumference of the inner distribution loop 3 and are arranged at intervals along the extending direction of the outer distribution pipe 7, and the outer distribution pipe 7 is arranged at intervals along the circumference of the inner distribution loop 3, thereby making the plurality of grouting pipes 5 annularly arranged. Wherein, the lower extreme and the outer distribution pipe 7 intercommunication of slip casting pipe 5, outer distribution pipe 7 pass through the connecting hole on spud leg 1 and distribute ring canal 3 intercommunication, distribute ring canal 3 and main grouting pipe 2 intercommunication, and then form a complete slip casting passageway, the reinforcement thick liquid of pouring into from main grouting pipe 2, loop 3, outer distribution pipe 7 and slip casting pipe 5 are distributed in proper order to main grouting pipe 2, distribute, the final slip casting hole 6 of follow slip casting pipe 5 of reinforcement thick liquid.

As one example, the distribution loop 3 is communicated with a plurality of main grouting pipes 2, so that grouting efficiency is higher.

As an embodiment, as shown in fig. 1, each outer distribution pipe 7 is connected with at least two grouting pipes 5 at intervals to form at least two grouting pipe 5 rings, so as to ensure more uniform grouting and better reinforcement effect.

Further, as shown in fig. 1, the grouting pipe 5 is provided with a plurality of grouting holes 6 at intervals along the height direction, so as to ensure grouting uniformity of the grouting pipe 5 in the height direction. Of course, the smaller the interval between adjacent grouting pipes 5 in the height direction, the larger the overall span of the grouting holes 6 in the height direction, the better the grouting uniformity in the height direction. The number of the grouting holes 6 in the height direction is determined according to the actual requirements. The shape of the grouting holes 6 is not limited, as long as the reinforcing slurry can flow out from the inside of the grouting pipe 5 through the grouting holes 6.

Further, as shown in fig. 4, an open-pore schematic diagram of the grouting pipe 5 vertically arranged in the present utility model is shown. The grouting pipe 5 is provided with a plurality of grouting holes 6 at intervals along the circumferential direction so as to ensure the grouting uniformity of the grouting pipe 5 in the circumferential direction. Of course, the smaller the interval between adjacent grouting pipes 5 in the circumferential direction, the larger the overall span of the grouting holes 6 in the circumferential direction, the better the grouting uniformity in the circumferential direction. The number of the grouting holes 6 arranged in the circumferential direction is determined according to actual requirements. The lower part of the vertical grouting pipe 5 is fixed on the pile shoe 4, and the top of the vertical grouting pipe is at a certain position from the bottom of the ship body.

The reinforcement slurry sprayed by the grouting pipe 5 at the bottom is used for solidifying soil, so that the soil is prevented from scouring to form a scouring pit. Each vertical grouting pipe 5 is connected with a large main grouting pipe 2 in the pile leg 1, the top of the main grouting pipe 2 in the pile leg 1 is arranged at the deck position of the ship body, a leading-out port is formed, the grouting pipe can be connected with a grouting device on the marine ship body through a hose, and after grouting injection of the slurry is completed, the hose and the main grouting pipe 2 can be disconnected.

As an example, as shown in fig. 4, 4 grouting holes 6 are uniformly distributed on the ring of one grouting pipe 5, and reinforcing slurry is sprayed from the inside of the grouting holes 6. The reinforcing slurry has the function of solidifying soil and ensures the anti-scouring effect.

Further, as shown in fig. 1, the end of the outer distribution pipe 7 far away from the inner distribution pipe loop 3 extends downwards, so that the grouting depth of the grouting pipe 5 connected to the end of the outer distribution pipe 7 far away from the inner distribution pipe loop 3 is larger, soil is reinforced, and the scouring prevention effect is stronger.

As an example, as shown in fig. 1, the lower end of the outer distribution pipe 7 is connected to the top of the shoe 4, and the connection strength of the outer distribution pipe 7 is improved.

Further, as shown in fig. 1 and 3, one end of the main grouting pipe 2 is connected to the inner distribution loop 3, and the other end of the main grouting pipe 2 extends upward. The main grouting pipe 2 extends to the top of the pile leg 1 all the time, so that the main grouting pipe 2 is conveniently connected with a hose of a grouting device, the main grouting pipe 2 and the grouting device are more conveniently assembled, and the operation efficiency is improved.

Further, as shown in fig. 3, the main grout pipe 2 is connected to the inside of the inner distribution pipe 3, and the outer distribution pipe 7 is connected to the outside of the inner distribution pipe 3. The pile leg 1 of the self-elevating booster station is connected with the main grouting pipe 2, the bottom of the pile leg 1 enters the inner distribution ring pipe 3, and the pile leg 1 is provided with a connecting hole which is communicated with the outer distribution pipe 7. The main grouting pipe 2 and the distribution ring pipe 3 are positioned inside the pile leg 1 and are connected in a welding mode.

As one example, the distribution loop 3 is U-shaped.

Further, as shown in fig. 1, the anti-scouring device further comprises a number of first support tubes 8 arranged corresponding to the number of the outer distribution tubes 7, the first support tubes 8 are arranged corresponding to the outer distribution tubes 7 in radial positions, and grouting tubes 5 connected to the same outer distribution tubes 7 are connected to the same first support tubes 8. The plurality of grouting pipes 5 connected to the same outer distribution pipe 7 are fixed through the first support pipe 8, so that the plurality of grouting pipes 5 are connected to form a whole, the outer distribution pipe 7 is fixed at least in the radial direction, and the erosion preventing device is prevented from being damaged under the soil pressure.

As an embodiment, as shown in fig. 1, the first support tube 8 is connected to the end of the grouting pipe 5 away from the outer distribution tube 7, so that the fixing effect is better.

Further, as shown in fig. 1, the anti-scouring device further comprises a second support bar, through which the grouting pipes 5 adjacent to the same outer distribution pipe 7 are connected. The second support rods are used for fixing the adjacent grouting pipes 5 connected to the same outer distribution pipe 7, so that the connection strength between the adjacent grouting pipes 5 is improved.

Further, as shown in fig. 1, one end of the grouting pipe 5 connected to the outer distribution pipe 7 is a first end, one end of the grouting pipe 5 away from the grouting pipe 5 is a second end, one end of the second support rod is connected to the first end of one grouting pipe 5, the other end of the second support rod is connected to the second end of the other grouting pipe 5, and the grouting pipes 5 are obliquely arranged. The grouting pipe 5 is obliquely arranged, so that the connection strength of the adjacent grouting pipes 5 is improved.

As shown in fig. 1, the first support pipe 8 and the second support pipe 9 are connected with each vertical grouting pipe 5, and play a role in reinforcing the grouting pipe 5 to prevent damage under soil pressure. The grouting pipe 5, the outer distribution pipe 7, the first support pipe 8 and the second support pipe 9 are connected by welding to form a single integral member. The grouting pipe comprises a grouting pipe body and is characterized in that a first supporting pipe 8 and a second supporting pipe 9 are arranged between the circumferential direction and the radial direction of the grouting pipe 5 in vertical arrangement, and the first supporting pipe 8 and the second supporting pipe 9 are welded with the pile leg 1 to form a stable lateral movement resisting system. The connection can improve the rigidity of the connection position of the pile leg 1 and the pile shoe 4, and the influence of fatigue at the connection position is reduced.

As an example, as shown in fig. 1, the inclination directions of the adjacent second support bars are the same or opposite. The second support rod and the grouting pipe 5 form a triangular structure, so that the support strength is better.

It should be noted that, the scour prevention scheme of the pile shoe 4 is that the scour prevention device is an integral component, is installed on the pile shoe 4, and the pile shoe 4 moves up and down along with the lifting of the pile leg 1 of the self-elevating booster station, and can start grouting operation after the pile shoe 4 sinks to enter the designed elevation, and the slurry enters the soil body through the vertical grouting pipe 5, so as to achieve the effect of solidifying the soil.

The anti-scouring device is mainly used when the first pile is inserted into place, and is positioned in soil under long-term stress action, and belongs to a soil-under area, so that the anti-corrosion and other related measures can be relatively reduced compared with a main structure.

The following further technical scheme is described:

the self-elevating booster station is similar to a common self-elevating ship, but needs to stand in place for a long period of time exceeding 25 years, and the pile shoe 4 is a stressed member on a bearing layer at the bottom of the booster station and bears the load of the self-elevating booster station.

Tens of vertical grouting pipes 5 are arranged on the upper portion of the pile shoe 4, the grouting pipes 5 are connected with the grouting pipes 5 through a first supporting pipe 8 and a second supporting pipe 9 to form a truss system, the truss system is connected with the top of the pile shoe 4 and the pile leg 1, a stable integral structure is formed, fatigue effect on the connection position between the pile leg 1 and the pile shoe 4 is avoided, and an outer distributing pipe 7 is arranged on the top plate of the pile shoe 4 and is used for reinforcing a channel for slurry to enter each vertical grouting pipe 5.

The reinforcing slurry enters the top of the pile shoe 4 from the sea through the main grouting pipe 2, then enters each outer distribution pipe 7 through the inner distribution ring pipe 3, finally is respectively connected with the bottom of each vertical grouting pipe 5 through the outer distribution pipe 7, holes are respectively formed in four sides of each grouting pipe 5, a group of reinforcing slurry is arranged on a certain height, and under the action of certain pressure, the reinforcing slurry is sprayed to reinforce the soil body, so that the scouring effect is avoided.

In summary, the embodiment of the utility model provides a self-elevating booster station and an anti-scouring device thereof, which solve the problem that the self-elevating booster station stands in the sea for a long time and is scoured, the foundation of the self-elevating booster station is used as a shallow foundation, and the position of a pile shoe 4 is easy to scour. The main grouting pipe 2 is in place along with the falling of the pile leg 1, so that the anti-scouring device is in place, and the anti-scouring measures are constructed by using other ships after the whole grouting pipe is in place. The grouting pipes 5 are connected with each other by adopting the first supporting pipe 8 and the second supporting pipe 9, so that the connection rigidity between the bottom pile shoe 4 and the pile leg 1 can be increased, and meanwhile, the grouting pipes 5 are prevented from being damaged by return soil in the sinking process of the pile shoe 4. The pile shoe 4 scour prevention scheme is suitable for various offshore jack-up booster platforms and has good application prospect.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.

Claims (10)

1. An anti-scour device of self-elevating booster station, its characterized in that: including main grout pipe, interior distribution ring pipe, a plurality of outer distribution pipe and a plurality of slip casting pipe, a plurality of outer distribution pipe is followed the periphery interval setting of interior distribution ring pipe, the one end of outer distribution pipe with interior distribution ring pipe intercommunication, the other end of outer distribution pipe is to keeping away from one side of interior distribution ring pipe extends, a plurality of the slip casting pipe is followed the extending direction interval setting of outer distribution pipe, the lower extreme of slip casting pipe with outer distribution pipe intercommunication, the upper end of slip casting pipe upwards extends, the slip casting hole has been seted up to slip casting pipe week side, main grout pipe with interior distribution ring pipe intercommunication.

2. The scour protection apparatus for a jack-up booster station of claim 1, wherein: the grouting pipes are provided with a plurality of grouting holes at intervals along the height direction.

3. The scour protection apparatus for a jack-up booster station of claim 2, wherein: the grouting pipes are provided with a plurality of grouting holes at intervals along the circumferential direction.

4. The scour protection apparatus for a jack-up booster station of claim 1, wherein: the end of the outer distribution pipe remote from the inner distribution collar extends downwards.

5. The scour protection apparatus for a jack-up booster station of claim 1, wherein: one end of the main grouting pipe is connected with the distribution ring pipe, and the other end of the main grouting pipe extends upwards.

6. The scour protection apparatus for a jack-up booster station of claim 1, wherein: the main grouting pipe is connected to the inner side of the inner distribution pipe, and the outer distribution pipe is connected to the outer side of the inner distribution pipe.

7. The scour protection apparatus for a jack-up booster station of claim 1, wherein: the anti-scouring device further comprises first supporting pipes, the number of the first supporting pipes is corresponding to that of the outer distributing pipes, the first supporting pipes are arranged at radial positions corresponding to the outer distributing pipes, and grouting pipes connected to the same outer distributing pipes are connected to the same first supporting pipes.

8. The scour protection apparatus for a jack-up booster station of claim 2, wherein: the anti-scouring device further comprises a second supporting rod, and the grouting pipes adjacent to the outer distribution pipe are connected through the second supporting rod.

9. The scour protection apparatus for a jack-up booster station of claim 8, wherein: the grouting pipe is connected to one end of the outer distribution pipe to form a first end, one end, far away from the grouting pipe, of the grouting pipe is a second end, one end of the second support rod is connected to the first end of the grouting pipe, the other end of the second support rod is connected to the second end of the other grouting pipe, and the grouting pipe is obliquely arranged.

10. A self-elevating booster station, characterized in that: the anti-scouring device comprises a pile leg, a pile shoe and any one of claims 1-9, wherein the pile shoe is connected to the lower end of the pile leg, the main grouting pipe and the inner distribution pipe are connected to the inner side of the pile leg, the outer distribution pipe is connected to the outer side of the pile leg, the pile leg is provided with a connecting hole, and the inner distribution pipe is communicated with the outer distribution pipe through the connecting hole.