CN217758817U - Underwater grouting leakage-proof structure for jacket foundation - Google Patents

Abstract

The utility model provides a jacket foundation underwater grouting leakage-proof structure, which relates to the technical field of ocean engineering and comprises a jacket; a sleeve; the steel pile is inserted into the sleeve, and a first annular grouting space for grouting is formed between the steel pile and the sleeve; grouting pipes; the ware that hinders seals, set up in telescopic bottom inboard is used for the shutoff first annular grout space, the ware that hinders includes the rubber sleeve, the rubber sleeve with form second annular grout space between the sleeve, the upper portion of rubber sleeve is provided with into thick liquid mouth, second annular grout space with pass through between the first annular grout space go into thick liquid mouth intercommunication setting, solved the uncontrollable technical problem of annular grout space grout quality that exists among the prior art, reached and avoided the thick liquid outflow, improved the technological effect of grout quality.

Description

Jacket foundation underwater grouting leakage-proof structure

Technical Field

The utility model belongs to the technical field of the ocean engineering technique and specifically relates to a jacket basis leak protection structure that is in milk under water is related to.

Background

Offshore wind power is a reliable clean energy, and offshore wind power engineering is vigorously developed globally to replace the traditional petroleum and coal energy. At present, offshore wind power foundation forms are various, and jacket foundation has good bearing performance and wide applicable sea area, and is often used for the lower foundation of an offshore booster station. The steel pile is embedded into the seabed through the jacket sleeve, so that the stability of the foundation is improved. After pile sinking is finished, an annular grouting space exists between the jacket sleeve and the steel pile. Due to the fact that the underwater grouting process is complex, the foundation grouting section of the offshore wind power jacket is below the water surface, a single-line grouting pipe is arranged on the jacket in the traditional method, the grouting quality of the project is difficult to guarantee, and bottom plugging of the annular grouting space is achieved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a jacket basis leak protection structure that is in milk under water to solve the uncontrollable technical problem of annular grout space grout quality that exists among the prior art.

An underwater grouting leakage-proof structure of a jacket foundation is characterized by comprising a jacket; a sleeve; the steel pile is inserted into the sleeve, and a first annular grouting space is formed between the steel pile and the sleeve; grouting pipes; the blocking device is arranged on the inner side of the bottom of the sleeve and used for blocking the first annular grouting space, the blocking device comprises a rubber sleeve, the upper portion and the lower portion of the rubber sleeve are fixedly connected with the sleeve, the rubber sleeve is provided with a second annular grouting space between the sleeves, a grout inlet is formed in the upper portion of the rubber sleeve, and the second annular grouting space is communicated with the first annular grouting space through the grout inlet.

Further, the grout pipe includes main grout pipe and reserve grout pipe, comprises jacket grout pipe, sleeve grout pipe, horizontal grout pipe, wherein: the jacket grouting pipe is connected with the jacket through a first fixing piece and/or connected with a fixing shaft through a second fixing piece; the sleeve grouting pipe is arranged on the sleeve and connected with the jacket grouting pipe; the horizontal grouting pipe is connected with the sleeve grouting pipe and is connected with the connecting hole in the sleeve.

Furthermore, the elevation of the main grouting pipe is lower than that of the standby grouting pipe.

Further, the sleeve comprises a straight cylinder and a horn cylinder which are connected into a whole.

Furthermore, a guide block and a pile clamping device are arranged inside the sleeve and used for fixing the steel pile.

Furthermore, the rubber sleeve is arranged between the sleeve and the steel pile through a fixing plate and a connecting bolt.

Further, the blocking device is provided with a spacing block above the rubber sleeve.

The utility model provides a pair of jacket basis is grout leak protection structure under water through set up the shutoff ware between sleeve and piling bar, and the thick liquid flows in second annular grout space from the income thick liquid mouth for effective shutoff is realized to rubber sleeve laminating piling bar, avoids the thick liquid outflow, improves the grout quality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is an overall schematic view of an underwater grouting leakage-proof structure of a jacket foundation according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a sleeve and a steel pile provided in an embodiment of the present invention;

fig. 3 is a plan view of a stopper structure provided by an embodiment of the present invention;

fig. 4 isbase:Sub>A sectional view taken alongbase:Sub>A-base:Sub>A in fig. 3.

Icon: 100-a jacket; 110-a first fixture; 120-a second fixture; 130-a fixed shaft; 200-a sleeve; 210-a blocking device; 211-rubber sleeve; 212-a fixed plate; 213-connecting bolt; 214-spacer blocks; 215-slurry inlet; 220-connection hole; 230-straight cylinder; 240-horn; 250-a guide block; 260-pile clamping device; 300-steel piles; 400-grouting pipes; 401-jacket grout pipe; 402-sleeve grout pipe; 403-horizontal grout pipe; 410-main grouting pipe; 420-spare grouting pipe; 500-stress frame.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a pair of jacket basis leak protection structure that is in milk under water, include: jacket 100, sleeve 200, steel pile 300, grout pipe 400, and resistor block 210. Wherein the mounting angle of the jacket 100 is adjustable to suit the particular situation. The jacket 100 and the jacket 200 are fixedly connected by the force-bearing frame 500. And a steel pile 300 inserted into the sleeve 200. The steel pile 300 is embedded into the seabed through the sleeve 200 by means of self-weight and piling, thereby improving the stability of the underwater foundation. A first annular grouting space for grouting is formed between the steel pile 300 and the sleeve 200. The choke 210 is arranged inside the bottom of the sleeve 200 for shutting off the annular grouting space. The upper portion and the lower portion of the rubber sleeve 211 are fixedly connected with the sleeve 200, a second annular grouting space is formed between the rubber sleeve 211 and the sleeve 200, a grout inlet 215 is formed in the upper portion of the rubber sleeve 211, and the second annular grouting space is communicated with the first annular grouting space through the grout inlet 215. The grout enters the second annular grouting space, so that the wall surface of the rubber sleeve 211 is tightly attached to the steel pile 300, the plugging is realized, and the outflow of the grout in the grouting process is avoided.

Further, the grouting pipe 400 is provided with a main grouting pipe 410 and a spare grouting pipe 420, which are composed of a jacket grouting pipe 401, a sleeve grouting pipe 402 and a horizontal grouting pipe 403. The jacket grout pipe 401 is connected to the jacket 100 through the first fastener 110 and connected to the fixed shaft 130 through the second fastener 120. Optionally, the first fixing member 110 is a pipe clamp and its corresponding mounting seat. Alternatively, the second fixing member 120 is a pipe clamp, and the fixing shaft 130 is welded to the jacket 100 and the sleeve 200, respectively. The sleeve grouting pipe 402 is disposed on the sleeve 200, and optionally, may be specifically disposed on the straight cylinder 230. Meanwhile, the sleeve grouting pipe 402 is connected with the jacket grouting pipe 401, the horizontal grouting pipe 403 is connected with the sleeve grouting pipe 402, and is connected with the connection hole 220 on the sleeve 200. The grout flows into the sleeve grouting pipe 402 from the jacket grouting pipe 401, further flows into the horizontal grouting pipe 403, enters the connecting hole 220 and finally flows into the annular grouting space for grouting. Alternatively, the grout pipe 400 may be composed of several sections of straight and curved pipes.

Further, the elevation of the main grout pipe 410 is lower than the elevation of the spare grout pipe 420. When the main grouting pipe 410 is blocked, the spare grouting pipe 420 can be used for grouting the annular grouting space, the underwater grouting efficiency is improved, the risk in the grouting process is reduced, and the grouting quality is improved.

Further, the sleeve 200 includes a straight cylinder 230 and a horn 240 connected together. Optionally, a trumpet 240 is provided at an upper portion of the straight tube 230 for guiding insertion of the steel pile 300.

Further, a guide block 250 and a pile clamping device 260 are arranged inside the sleeve 200 and used for fixing the steel pile 300. Optionally, each sleeve 200 is internally provided with eight stake clamps 260, evenly distributed in circumferential direction. Eight guide blocks 250 are arranged in each sleeve 200 and are uniformly distributed along the circumferential direction, so that the steel pile 300 is guided in an inserting mode, the relative positions of the steel pile 300 and the sleeve 200 are stabilized, grouting construction is guaranteed, and grouting quality is improved.

Further, a fixing plate 212 is disposed below the rubber sleeve 211, and optionally, the fixing plate 212 is a steel ring welded to the sleeve 200, so that the bottom of the rubber sleeve 211 is pressed on the steel ring. A pressing plate is arranged above the bottom of the rubber sleeve 211, and a through hole is formed in the steel ring along the circumferential direction and is used for fixedly connecting the pressing plate, the bottom of the rubber sleeve 211 and the steel ring through a connecting bolt 213. Be provided with the connecting block on the sleeve 200 of grout inlet 215 department near the upper portion of rubber sleeve 211, the upper portion of rubber sleeve 211 passes through the clamp plate pressfitting on the connecting block, is provided with the blind hole in the connecting block for connecting bolt 213 is connecting block, the upper portion and the clamp plate fixed connection of rubber sleeve 211. Through being connected fixedly between rubber sleeve and the sleeve, effective shutoff annular grout space, simple structure is convenient for be under construction.

Further, the stopper 210 is provided with a plurality of spacers 214 above the rubber boot 211 for guiding the insertion of the steel pile 300, and at the same time, the spacers 214 can guide the grout into the second annular grouting space.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (7)

1. The utility model provides a jacket basis is grout leak protection structure under water which characterized in that includes:

a jacket (100);

a sleeve (200);

a steel pile (300) inserted in the sleeve (200), a first annular grouting space being formed between the steel pile (300) and the sleeve (200);

a grout pipe (400);

the choke stopper (210), set up in the bottom of sleeve (200) is inboard, is used for the shutoff first annular grout space, choke stopper (210) including rubber sleeve (211), the upper portion and the lower part of rubber sleeve (211) with sleeve (200) fixed connection, rubber sleeve (211) with form second annular grout space between sleeve (200), the upper portion of rubber sleeve (211) is provided with into thick liquid mouth (215), second annular grout space with pass through between the first annular grout space go into thick liquid mouth (215) intercommunication setting.

2. The jacket foundation underwater grouting leakage prevention structure of claim 1, wherein the grouting pipe (400) comprises a main grouting pipe (410) and a spare grouting pipe (420) which are all composed of a jacket grouting pipe (401), a sleeve grouting pipe (402) and a horizontal grouting pipe (403), wherein:

the jacket grouting pipe (401) is connected with the jacket (100) through a first fixing piece (110) and/or is connected with a fixed shaft (130) through a second fixing piece (120);

the sleeve grouting pipe (402) is arranged on the sleeve (200) and connected with the jacket grouting pipe (401);

the horizontal grouting pipe (403) is connected with the sleeve grouting pipe (402) and is connected with the connecting hole (220) in the sleeve (200).

3. The jacket foundation underwater grouting leakage prevention structure of claim 2, wherein the elevation of the main grouting pipe (410) is lower than the elevation of the spare grouting pipe (420).

4. The jacket foundation underwater grouting leakage prevention structure of claim 1, wherein the sleeve (200) comprises a straight tube (230) and a trumpet (240) connected integrally.

5. The jacket foundation underwater grouting leakage-proof structure as claimed in claim 1, wherein a guide block (250), a pile clip (260) for fixing the steel pile (300) are provided inside the sleeve (200).

6. The jacket foundation underwater grouting leakage prevention structure of claim 1, wherein the rubber boot (211) is disposed between the sleeve (200) and the steel pile (300) through a fixing plate (212) and a connecting bolt (213).

7. The jacket foundation underwater grouting leakage prevention structure as claimed in claim 1, wherein the choke stopper (210) is provided with a spacer block (214) above the rubber boot (211).

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