CN115573317A

CN115573317A - Jacket with grout plugging device

Info

Publication number: CN115573317A
Application number: CN202211333825.6A
Authority: CN
Inventors: 孟勋; 钱旗; 郝寿军; 龚国林; 夏添; 葛继军; 徐琴; 李萼祥
Original assignee: Jiangsu Hantong Ship Heavy Industry Co Ltd
Current assignee: Jiangsu Hantong Ship Heavy Industry Co Ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-01-06

Abstract

The application discloses be applied to jacket field's jacket with grout plugging device, this scheme forms airtight space through grout shutoff subassembly and calibration end, the cooperation drain pump is walked its inside water, utilize the pressure of sea water to make grout shutoff subassembly and calibration end combine more stable, the solidification of dry space more is fit for the grout, utilize shrink sleeve closely to wrap up in grafting leg outer wall, through cementer and grout pipe to the inside water injection mud of pegging graft hole, grout is at first piled up in shrink sleeve top, pile up the back when the grout of pressure sensor perception shrink sleeve top is full, release the grout intensifier in the shrink sleeve to inside the liquid storage cavity, make the shrink sleeve reduce and peg graft the compactness of being connected between the leg, make the inside remaining grout of grout pipe fall into shrink sleeve below under the effect of gravity, the waste of grout has been reduced, the stability of jacket has been improved simultaneously.

Description

Jacket with grout plugging device

Technical Field

The application relates to the field of jackets, in particular to a jacket with a grouting plugging device.

Background

The jacket consists of hollow legs and longitudinal cross rods connecting the legs. The fixed platform is lapped on the upper surface of the floating platform, and can be used for offshore oil exploitation.

At present, in order to fully utilize the energy of the ocean, people try to build ocean power stations and mining stations at the sea, which all need stable working platforms, so that the jacket is concerned more, cement slurry needs to be poured into an annular gap between a pile and a guide pipe when the jacket is installed, but the jacket is higher, so that the use amount of the cement slurry is difficult to control when the cement slurry is poured, the waste of the cement slurry is caused, and the strength of a pile body is influenced.

In view of the above, we have proposed a jacket with a grouting plugging device to solve the above problems by filling the jacket with residual cement slurry inside the filling pipe in a step-by-step manner.

Disclosure of Invention

The application aims to reduce the waste of cement paste and improve the stability of a jacket, compared with the prior art, the jacket with the grouting plugging device comprises a jacket, a plurality of plugging legs are arranged at the lower end of the jacket, a platform is arranged at the upper end of the jacket, fixing piles corresponding to the plugging legs are arranged below the plugging legs, and the lower ends of the fixing piles are buried under a seabed, and is characterized in that a grouting plugging component is arranged on the outer walls of the upper ends of the plugging legs, a calibration end corresponding to the grouting plugging component is arranged at the upper end of each fixing pile, a plugging hole is formed at the upper end of each fixing pile, a shrinkage sleeve is arranged on the inner wall of the plugging hole, the diameter of the shrinkage sleeve is gradually reduced from top to bottom, the shrinkage sleeve is made of elastic materials, a plurality of electromagnetic valves are arranged at the upper end of the shrinkage sleeve, a liquid storage cavity is formed in the shrinkage sleeve, a cement paste reinforcing agent is filled in the liquid storage cavity, a liquid storage cavity corresponding to the plugging hole is formed in the fixing pile, the liquid storage cavity is communicated with the liquid storage cavity through an electromagnetic valve, the jacket is connected with a grouting pipe through a fixing device, the upper end of the grouting pipe penetrates through the platform and extends to the upper end of the grouting pipe, the upper end of the grouting pipe is connected with a grouting device, the lower end of the grouting pipe penetrates through the grouting plugging component and extends to the lower end of the grouting plugging component, the lower end of the grouting plugging component is provided with a pressure sensor, the pressure sensor is electrically connected with the grouting device, the fixing pile is internally provided with a drainage pump communicated with the inside of the plugging hole, a closed space is formed by the grouting plugging component and the calibration end and is matched with the drainage pump to drain water in the fixing pile, the grouting plugging component and the calibration end are combined more stably by using the pressure of seawater, the dry space is more suitable for grouting of cement paste, the shrink sleeve is tightly wrapped on the outer wall of the plugging leg, and the grouting device and the grouting pipe are used for grouting the inside of the plugging hole, grout piles up in shrink cover top at first, pile up full back when the grout of pressure sensor perception shrink cover top, control grouting device stop work at once, the grout reinforcing agent release to the stock solution intracavity portion in the while control solenoid valve will shrink the cover, make the shrink cover reduce and peg graft the inseparable nature of being connected between the leg, grout intraduct remaining grout falls into shrink cover below under the effect of gravity, make peg graft leg and peg graft the hole and form a whole, the waste of grout has been reduced, the stability of jacket has been improved simultaneously.

Furthermore, a plurality of anti-slip grooves are formed in the inner wall of the insertion hole, the inner wall of each anti-slip groove is rough in surface after polishing, the anti-slip grooves are used for improving the connection tightness of cement paste and the insertion hole, and the stability and the safety of the jacket are improved.

Further, a plurality of reinforcement holes that communicate to stock solution intracavity portion have been seted up to the spliced eye inner wall, and the internal diameter from interior to exterior in reinforcement hole reduces in proper order, and the activity of reinforcement hole inside is equipped with the shutoff awl, and shutoff awl and reinforcement hole size looks adaptation, the reinforcement hole cooperation shutoff awl that the internal diameter from interior to exterior reduces in proper order can avoid grout to get into the reinforcement hole when pouring cement thick liquid and cause the jam.

Furthermore, a plurality of liquid guide grooves are formed in the outer wall of the blocking cone, the left end of each liquid guide groove extends to the left side wall of the blocking cone, reserved sections of 2-5mm are formed in the right end of each liquid guide groove and the right side wall of the blocking cone, a cement slurry reinforcing agent only needs to be pushed out of the blocking cone by a small distance, the cement slurry reinforcing agent can enter cement slurry along the liquid guide grooves, and meanwhile the blocking cone can stretch into the cement slurry so that the cement slurry reinforcing agent and the cement slurry are mixed more uniformly.

Further, the guide way has been seted up to grout shutoff subassembly lower extreme, and the guide way is the funnel structure that the opening is decurrent, and the spacing groove that corresponds with grafting leg position is seted up to the guide way lower extreme, utilizes the guide way can so that to connect the grafting leg and get into the spliced eye more easily, has improved the convenience of jacket installation, and the spacing groove can carry on spacingly to the spud pile simultaneously, has improved the stability and the security of spud pile.

Furthermore, calibration end upper end and guide way structure looks adaptation, calibration end outer wall has seted up the ring channel lamella, and the negative pressure annular that corresponds with ring channel lamella position is seted up to the guide way inner wall, utilizes calibration end and guide way structure looks adaptation to realize the inseparable combination of the two.

Furthermore, a micro liquid pump is arranged inside the grouting plugging component and communicated to the negative pressure annular groove, the negative pressure annular groove and the annular groove valve are spliced to form a complete annular cavity, liquid in the annular cavity is completely pumped out by matching with the micro liquid pump, and the calibration end and the grouting plugging component are combined more tightly by using the pressure of external seawater.

Further, calibration end outer wall and guide way inner wall all are equipped with the waterproof layer, and the waterproof layer adopts rubber materials to make, utilizes the waterproof layer to make more inseparabler that calibration end outer wall and guide way combine, reduces the infiltration of external sea water, has improved the purity of grout, and then has improved the intensity of grout.

Furthermore, a gap is reserved between the inserting leg and the inserting hole, when the inserting leg is located inside the inserting hole, the inserting leg is tightly connected with the shrinkage sleeve, the shrinkage sleeve can divide the inserting hole into two parts, after the upper part is filled, the shrinkage sleeve is loosened, meanwhile, the residual cement slurry inside the grouting pipe is used for completing the filling of the lower part, and the use of the cement slurry is reduced.

Further, the inside vibrations module that corresponds with the spliced eye position that is equipped with of spud pile, vibrations module electric connection in cementer, vibrations module can shake grout for grout is tamped, reduces inside cavity, has improved the intensity of grout.

Compare in prior art, the advantage of this application lies in:

(1) Form airtight space through grout shutoff subassembly and calibration end, the cooperation drain pump is walked its inside water, the pressure of utilizing the sea water makes grout shutoff subassembly and calibration end combine more stable, dry space more is fit for pouring of grout simultaneously, utilize the shrink sleeve closely to wrap up in grafting leg outer wall, through grouting device and grout pipe to the inside grout injection mud of spliced eye, grout is at first piled up in shrink sleeve top, after the grout of pressure sensor perception shrinkage sleeve top is piled up fully, at once control grouting device stop work, simultaneously control the solenoid valve and release the grout intensifier in the shrink sleeve to the stock solution intracavity portion, make the shrink sleeve reduce and peg graft the inseparability of being connected between the leg, the inside remaining grout pipe falls into shrink sleeve below under the effect of gravity, make grafting leg and spliced eye form a whole, the waste of grout has been reduced, the stability of duct rack has been improved simultaneously.

(2) Inside diameter reinforcement hole cooperation shutoff awl that reduces in proper order from interior to exterior can avoid grout to get into the reinforcement hole when pouring cement thick liquids and cause the jam, and the grout reinforcing agent only need push out a segment distance with the shutoff awl, and during the grout reinforcing agent just can get into grout along the cistern, the shutoff awl can stretch into grout and then make grout reinforcing agent and grout mixture more even simultaneously.

(3) A complete annular cavity is formed by splicing the negative pressure annular groove and the annular groove valve, all liquid in the cavity is pumped out by matching with a micro liquid pump, and the calibration end and the grouting plugging component are combined more tightly by using the pressure of external seawater.

(3) The shrinkage sleeve can separate the spliced eye into two parts, and after the filling of upper portion was finished, the inside remaining grout of grout pipe was accomplished the packing of part down simultaneously to the shrink sleeve of relaxing, has reduced the use of grout.

Drawings

FIG. 1 is a schematic diagram of the main structure of the present application;

FIG. 2 is an exploded view of the body structure of the present application;

FIG. 3 is a schematic view of the construction of the anchor and alignment end joint of the present application;

FIG. 4 is a cross-sectional view of a spud of the present application;

FIG. 5 is an enlarged view taken at A in FIG. 4;

FIG. 6 is a cross-sectional view of a shrink sleeve of the present application;

FIG. 7 is a schematic view of a grout seal assembly and a calibration end configuration of the present application;

FIG. 8 is a cross-sectional view of a grout plugging assembly of the present application;

FIG. 9 is a schematic view of a plugging cone structure of the present application;

FIG. 10 is a cross-sectional view of the present application with the peg leg and spud pile combination in a grouted condition;

FIG. 11 is an enlarged view of FIG. 10 at B;

FIG. 12 is a cross-sectional view of the present application with the peg leg and spud pile combination in a grout off condition;

fig. 13 is an enlarged view at C in fig. 12.

The reference numbers in the figures illustrate:

1. a jacket; 11. inserting legs; 2. grouting pipes; 3. fixing the pile; 31. inserting holes; 32. a liquid storage cavity; 33. plugging a cone; 331. a liquid guide groove; 4. grouting and plugging the assembly; 41. a guide groove; 42. a limiting groove; 43. a negative pressure ring groove; 5. a platform; 7. a calibration end; 71. an annular groove flap; 8. a shrink sleeve; 81. an electromagnetic valve; 82. a reservoir chamber.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without any creative work based on the embodiments in the present application belong to the protection scope of the present application.

Example 1:

the application discloses a jacket with grouting plugging devices, please refer to fig. 1-6, which comprises a jacket 1, a plurality of plugging legs 11 are arranged at the lower end of the jacket 1, a platform 5 is arranged at the upper end of the jacket 1, a fixed pile 3 corresponding to the plugging legs 11 is arranged below the plugging legs 11, and the lower end of the fixed pile 3 is buried under the seabed, and is characterized in that a grouting plugging component 4 is arranged on the outer wall of the upper end of the plugging legs 11, a calibration end 7 corresponding to the grouting plugging component 4 is arranged at the upper end of the fixed pile 3, a plugging hole 31 is arranged at the upper end of the fixed pile 3, a shrink sleeve 8 is arranged on the inner wall of the plugging hole 31, the diameter of the shrink sleeve 8 is gradually reduced from top to bottom, the shrink sleeve 8 is made of elastic material, the upper end of shrink sleeve 8 is equipped with a plurality of solenoid valves 81, shrink sleeve 8 is inside to have seted up and to have held the liquid chamber 82, it has the grout reinforcing agent to hold the inside packing of liquid chamber 82, the inside stock solution chamber 32 of corresponding with spliced eye 31 position of seting up of spud pile 3, it communicates to stock solution chamber 32 through solenoid valve 81 to hold liquid chamber 82, be connected with grout pipe 2 through fixing device on the jacket 1, grout pipe 2 upper end runs through platform 5 and extends to its upper end, grout pipe 2 upper end is connected with grouting device, grout pipe 2 lower extreme runs through grout shutoff subassembly 4 and extends to its lower extreme, grout shutoff subassembly 4 lower extreme is equipped with pressure sensor, pressure sensor and grouting device electric connection, the inside drain pump that communicates to spliced eye 31 that is equipped with of spud pile 3.

Referring to fig. 4-5, the inner wall of the insertion hole 31 is provided with a plurality of anti-slip grooves, the inner wall of each anti-slip groove is polished to obtain a rough surface, the anti-slip grooves are used to improve the connection tightness between cement paste and the insertion hole 31, and the stability and the safety of the jacket 1 are improved.

The inner wall of the inserting hole 31 is provided with a plurality of reinforcing holes communicated to the inside of the liquid storage cavity 32, the inner diameters of the reinforcing holes are sequentially reduced from inside to outside, a plugging cone 33 is movably arranged in each reinforcing hole, and the plugging cone 33 is matched with the size of each reinforcing hole.

Specifically, the inner diameter of the reinforcing hole is reduced from inside to outside in sequence to match with the blocking cone 33, so that the cement slurry can be prevented from entering the reinforcing hole to cause blocking when the cement slurry is poured, and when the shrinkage sleeve 8 releases the cement slurry reinforcing agent to enter the liquid storage cavity 32, the cement slurry reinforcing agent can push out the blocking cone 33 and mix the cement slurry reinforcing agent with the cement slurry to improve the strength of the cement slurry.

Referring to fig. 9, the outer wall of the plugging cone 33 is provided with a plurality of liquid guiding grooves 331, the left end of the liquid guiding groove 331 extends to the left side wall of the plugging cone 33, and the right end of the liquid guiding groove 331 and the right side wall of the plugging cone 33 are provided with a reserved section of 2 mm.

Specifically, the cement slurry reinforcing agent only needs to push out the blocking cone 33 for a short distance, the cement slurry reinforcing agent can enter the cement slurry along the liquid guide groove 331, and meanwhile, the blocking cone 33 can extend into the cement slurry, so that the cement slurry reinforcing agent and the cement slurry are mixed more uniformly.

Referring to fig. 7, the upper end of the calibration end 7 is structurally matched with the guide groove 41, the outer wall of the calibration end 7 is provided with an annular flap 71, the inner wall of the guide groove 41 is provided with a negative pressure annular groove 43 corresponding to the annular flap 71, and the calibration end 7 and the guide groove 41 are structurally matched to realize tight combination.

A micro liquid pump is arranged in the grouting plugging component 4 and communicated to the negative pressure annular groove 43.

Specifically, a complete annular cavity is formed by splicing the negative pressure annular groove 43 and the annular groove flap 71, all liquid in the cavity is pumped out by matching with a micro liquid pump, and the calibration end 7 and the grouting plugging component 4 are combined more tightly by using the pressure of external seawater.

Calibration end 7 outer wall and 41 inner walls of guide way all are equipped with the waterproof layer, and the waterproof layer adopts rubber materials to make, and it is inseparabler that utilizes the waterproof layer to make calibration end 7 outer wall and guide way 41 combine, reduces the infiltration of external sea water, has improved the purity of grout, and then has improved the intensity of grout.

Referring to fig. 8, the lower end of the grouting plugging component 4 is provided with a guide groove 41, the guide groove 41 is of a funnel structure with a downward opening, and the lower end of the guide groove 41 is provided with a limit groove 42 corresponding to the position of the plugging leg 11.

Specifically, utilize the guide way 41 can make to connect grafting leg 11 to get into spliced eye 31 more easily, improved the convenience of jacket 1 installation, spacing groove 42 can be spacing to spud pile 3 simultaneously, has improved the stability and the security of spud pile 3.

A gap is reserved between the inserting leg 11 and the inserting hole 31, when the inserting leg 11 is located inside the inserting hole 31, the inserting leg 11 is tightly connected with the shrinkage sleeve 8, the shrinkage sleeve 8 can divide the inserting hole 31 into two parts, after the upper part is filled, the shrinkage sleeve 8 is loosened, meanwhile, the residual cement slurry inside the grouting pipe 2 is used for filling the lower part, and the use of the cement slurry is reduced.

3 inside vibrations modules that correspond with the 31 positions of spliced eye that are equipped with of spud pile, vibrations module electric connection in cementer, vibrations module can vibrate grout for grout is tamped, reduces inside cavity, has improved the intensity of grout, has improved spud pile 3 and the wholeness and the security of grafting leg 11.

Referring to fig. 10-13, when installing the jacket 1, the plugging leg 11 is inserted into the plugging hole 31, a sealed space is formed by the grouting plugging component 4 and the calibration end 7, the water inside the plugging component is drained by matching with a drainage pump, the combination of the grouting plugging component 4 and the calibration end 7 is more stable by using the pressure of seawater, meanwhile, the dry space is more suitable for the grouting of cement paste, the shrinkage sleeve 8 is tightly wrapped on the outer wall of the plugging leg 11, the cement paste is poured into the plugging hole 31 through the grouting device and the grouting pipe 2, the cement paste is firstly stacked above the shrinkage sleeve 8, when the pressure sensor senses that the cement paste above the shrinkage sleeve 8 is fully stacked, the grouting device is immediately controlled to stop working, meanwhile, the electromagnetic valve 81 is controlled to release the reinforcing agent in the shrinkage sleeve 8 into the liquid storage cavity 32, so that the connection tightness between the shrinkage sleeve 8 and the plugging leg 11 is reduced, the residual cement paste inside the grouting pipe 2 falls below the shrinkage sleeve 8 under the action of gravity, so that the plugging leg 11 and the plugging hole 31 form a whole, the waste is reduced, and the stability of the jacket 1 is improved.

The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present application, and all equivalent substitutions or changes according to the technical solutions and modifications of the present application should be covered by the scope of the present application.

Claims

1. The jacket with the grouting plugging device comprises a jacket (1), wherein a plurality of inserting legs (11) are arranged at the lower end of the jacket (1), a platform (5) is arranged at the upper end of the jacket (1), fixing piles (3) corresponding to the inserting legs (11) are arranged below the inserting legs (11), the lower ends of the fixing piles (3) are buried under a seabed, the grouting plugging device is characterized in that grouting plugging components (4) are arranged on the outer walls of the upper ends of the inserting legs (11), calibration ends (7) corresponding to the grouting plugging components (4) are arranged at the upper ends of the fixing piles (3), plugging holes (31) are formed in the upper ends of the fixing piles (3), shrink sleeves (8) are arranged on the inner walls of the plugging holes (31), the diameters of the shrink sleeves (8) are gradually reduced from top to bottom, the shrink sleeves (8) are made of elastic materials, a plurality of electromagnetic valves (81) are arranged at the upper ends of the shrink sleeves (8), liquid storage cavities (82) are formed in the shrink sleeves (8), reinforcing agents are filled in the fixing piles (3), liquid storage cavities (32) are communicated with liquid storage devices (32) through liquid storage devices (32), and liquid storage devices (32) are connected with the liquid storage cavities (2), grout pipe (2) upper end is run through platform (5) and is extended to its upper end, grout pipe (2) upper end is connected with cementer, grout pipe (2) lower extreme runs through grout shutoff subassembly (4) and extends to its lower extreme, grout shutoff subassembly (4) lower extreme is equipped with pressure sensor, pressure sensor and cementer electric connection, spud pile (3) inside is equipped with the drain pump that communicates to spliced eye (31) inside.

2. The jacket with the grouting plugging device as claimed in claim 1, wherein a plurality of anti-slip grooves are formed in the inner wall of the plugging hole (31), and the inner wall of each anti-slip groove is polished to obtain a rough surface.

3. The jacket with the grouting plugging device as claimed in claim 1, wherein a plurality of reinforcing holes communicated to the interior of the liquid storage cavity (32) are formed in the inner wall of the insertion hole (31), the inner diameters of the reinforcing holes are sequentially reduced from inside to outside, a plugging cone (33) is movably arranged in each reinforcing hole, and the plugging cone (33) is matched with the size of each reinforcing hole in size.

4. The jacket with the grouting plugging device as claimed in claim 3, wherein a plurality of liquid guiding grooves (331) are formed in the outer wall of the plugging cone (33), the left end of each liquid guiding groove (331) extends to the left side wall of the plugging cone (33), and a reserved section of 2-5mm is formed between the right end of each liquid guiding groove (331) and the right side wall of the plugging cone (33).

5. The jacket with the grouting plugging device as claimed in claim 1, wherein the lower end of the grouting plugging component (4) is provided with a guide groove (41), the guide groove (41) is of a downward opening funnel structure, and the lower end of the guide groove (41) is provided with a limit groove (42) corresponding to the position of the plugging leg (11).

6. The jacket with the grouting plugging device as claimed in claim 5, wherein the upper end of the calibration end (7) is structurally matched with the guide groove (41), the outer wall of the calibration end (7) is provided with an annular groove flap (71), and the inner wall of the guide groove (41) is provided with a negative pressure annular groove (43) corresponding to the annular groove flap (71).

7. A jacket with a grouting plugging device according to claim 6, characterized in that a micro liquid pump is arranged inside the grouting plugging component (4) and is communicated to the negative pressure ring groove (43).

8. The jacket with grouting plugging device as claimed in claim 5, wherein the outer wall of the calibration end (7) and the inner wall of the guide groove (41) are provided with waterproof layers made of rubber materials.

9. A jacket with a grouting plugging device according to claim 1, characterized in that a gap is left between the plugging leg (11) and the plugging hole (31), and when the plugging leg (11) is positioned in the plugging hole (31), the plugging leg (11) is tightly connected with the shrinkage sleeve (8).

10. The jacket with the grouting plugging device as claimed in claim 1, wherein a vibration module corresponding to the position of the insertion hole (31) is arranged inside the fixed pile (3), and the vibration module is electrically connected to a grouting device.