CN116427375B - Shallow sea jacket leveling mechanism and use method thereof - Google Patents

Shallow sea jacket leveling mechanism and use method thereof Download PDF

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Publication number
CN116427375B
CN116427375B CN202310646301.0A CN202310646301A CN116427375B CN 116427375 B CN116427375 B CN 116427375B CN 202310646301 A CN202310646301 A CN 202310646301A CN 116427375 B CN116427375 B CN 116427375B
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China
Prior art keywords
pile
leveling
limiting
fixing
jacket body
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CN202310646301.0A
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CN116427375A (en
Inventor
陈万军
汪建伟
汤万阳
关东学
蔡建
胡太华
郭佳欣
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TIANJIN TIMEAST OFFSHORE ENGINEERING CO LTD
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TIANJIN TIMEAST OFFSHORE ENGINEERING CO LTD
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Priority to CN202310646301.0A priority Critical patent/CN116427375B/en
Publication of CN116427375A publication Critical patent/CN116427375A/en
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B17/00Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/02Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
    • E02B17/027Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto steel structures
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B17/00Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D15/00Handling building or like materials for hydraulic engineering or foundations
    • E02D15/08Sinking workpieces into water or soil inasmuch as not provided for elsewhere
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/32Foundations for special purposes
    • E02D27/52Submerged foundations, i.e. submerged in open water
    • E02D27/525Submerged foundations, i.e. submerged in open water using elements penetrating the underwater ground
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B17/00Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0039Methods for placing the offshore structure
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/727Offshore wind turbines

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)

Abstract

The application discloses a shallow sea jacket leveling mechanism and a use method thereof, belonging to the technical field of offshore construction, and the technical scheme is characterized in that the shallow sea jacket leveling mechanism comprises a first fixed pile vertically inserted into a seabed and a leveling device, a jacket body is connected with a horizontal sensor, the jacket body is connected with a guide assembly connected with the first fixed pile, the jacket body comprises a plurality of piles legs, the connecting lines of the axial end points of the same side pipe of the piles are regular polygons, the piles are connected with an extension device, the extension device is connected with a distance sensor, the extension device comprises a driving piece and an extension assembly, the driving piece is electrically connected with a control device, and the control device is electrically connected with the distance sensor and the driving piece; the leveling device is connected with a plurality of spud legs respectively, the first fixed pile is connected with a second fixed pile for controlling the leveling device to move, the first fixed pile is sleeved on the second fixed pile, and the second fixed pile is vertically inserted into the seabed, so that the effect of reducing the complexity of construction is achieved.

Description

Shallow sea jacket leveling mechanism and use method thereof
Technical Field
The application relates to the technical field of offshore construction, in particular to a shallow sea jacket leveling mechanism and a use method thereof.
Background
At present, in the structure type of ocean engineering foundation, the jacket is the most commonly used foundation structure form, and has the characteristics of convenient operation, mature technology, lower cost and good stability, and the jacket is used for providing support for upper facilities and is kept stable; leveling is needed in the jacket installation process, and the horizontal precision directly influences various performances such as safety, adaptability, service life and the like of the offshore wind turbine.
In the related technology, when offshore construction is carried out, firstly, a jacket is hoisted and lowered to the seabed, then a steel pipe pile is driven in through skirt piles or jacket positioning, the jacket is provided with a horizontal sensor for checking the levelness of the jacket, whether the levelness of the jacket is in an error range or not is judged through detection equipment, if the levelness of the jacket exceeds the error range, the jacket is leveled in the error range, then a next steel pipe pile is driven in continuously, and the detection equipment is observed continuously until the steel pipe piles are inserted into a plurality of pile legs of the jacket; grouting is carried out in the jacket, and the jacket and the steel pipe piles are connected.
Aiming at the related technology, the inventor considers that in the leveling process of the jacket, workers need to level while driving steel pipe piles, each section of steel pipe piles is driven, the detection result of the detection equipment needs to be observed, the jacket is leveled, the construction is complex, and the construction difficulty is high.
Disclosure of Invention
In order to reduce the complexity of construction, the application provides a shallow sea jacket leveling mechanism and a use method thereof.
The application provides a shallow sea jacket leveling mechanism, which adopts the following technical scheme:
the utility model provides a shallow sea marine jacket leveling mechanism, includes vertical first spud, multiunit with the levelling device that first spud is connected in the seabed, the jacket body is connected with level sensor, the jacket body is connected with multiunit restriction the direction subassembly of first spud position, the direction subassembly with first spud is connected, the jacket body includes a plurality of spud legs, a plurality of the spud leg is regular polygon with the line of side pipe axis extreme point, the spud leg is connected with extension device, extension device is connected with distance sensor, extension device include with the driving piece that the spud leg is connected, with the extension subassembly that the driving piece is connected, the driving piece electricity is connected with controlling means, controlling means with a plurality of distance sensor, a plurality of the driving piece all electricity is connected;
the multiunit levelling device respectively with a plurality of spud leg is connected, first spud pile is connected with the control levelling device motion's second spud pile, first spud pile cover is established on the second spud pile, the second spud pile with first spud pile sliding connection, in the vertical seabed of inserting in second spud pile bottom, the second spud pile with levelling device connects, first spud pile the length of second spud pile is all greater than the height of jacket body.
By adopting the technical scheme, the jacket body is firstly placed in the sea by using the floating crane, the jacket body can be directly placed on the sea surface under the condition that the sea surface is flat, one pile leg of the jacket body firstly contacts the sea surface when the sea surface is uneven, a distance sensor close to the pile leg can sense that the distance between the pile leg and the sea bed is smaller or zero, the distance sensor can transmit a signal to the control device, the control device receives the signal and then transmits the signal to the extension device connected with other pile legs, the extension device starts to move after receiving the signal, the length of the pile leg is prolonged, the distance sensor connected with the extension device transmits the signal to the control module when the extension device is abutted to the sea surface, and the control module stops the movement of the extension device, so that the jacket body is stably placed on the horizontal plane;
placing the first fixed pile into the sea by using a floating crane, limiting the first fixed pile by using a plurality of groups of guide assemblies, enabling the first fixed pile to be accurately positioned and placed on the sea bed surface, enabling a plurality of leveling devices to be opposite to a plurality of pile legs respectively, keeping the first fixed pile vertical and driving the first fixed pile into the sea bed until the top of the first fixed pile is lower than the top of the pile legs;
and then vertically inserting the second fixing pile into the first fixing pile by using the floating crane, so that the second fixing pile slides in the first fixing device, continuously driving the second fixing pile into the seabed, driving the leveling device to move towards the direction close to the pile leg by using the second fixing pile, connecting one leveling device with one pile leg, continuously driving the second fixing pile to move the leveling device until the leveling devices are in one-to-one butt with the pile legs, enabling the jacket body to be horizontal, stopping driving the second fixing pile, observing the horizontal sensor, enabling the levelness of the jacket body to be in an error range, driving the steel pipe pile into the seabed from the pile leg, grouting, connecting and fixing the steel pipe pile and the jacket body, and reducing the construction complexity.
Preferably, a plurality of fixed blocks are connected to the outer wall of the first fixing pile, the leveling device comprises a leveling rod penetrating through the side wall of the first fixing pile, a baffle plate connected with the leveling rod, a leveling spring sleeved on the leveling rod, and a leveling plate connected with one end of the leveling rod away from the baffle plate, wherein the leveling rod penetrates through the fixed blocks, the leveling rod is in sliding connection with the first fixing pile, the baffle plate is located in the first fixing pile, the baffle plate is in abutting connection with and sliding with the second fixing pile, the leveling spring is located in the first fixing pile, one end of the leveling spring is connected with the first fixing pile, the other end of the leveling spring is connected with the baffle plate, the leveling plate is in abutting connection with the pile leg, and the outer diameter of the top end of the second fixing pile is larger than the outer diameter of the bottom end.
Through adopting above-mentioned technical scheme, after the vertical sea bed of driving into in the bottom of first spud, because the top external diameter of second spud is greater than the bottom external diameter, at the in-process of driving the second spud into the sea bed, the second spud makes a plurality of baffles keep away from each other, and make the baffle to being close to the direction removal of spud leg, the baffle drives leveling pole and removes to being close to the direction of spud leg, leveling spring is compressed, leveling pole drives leveling board and removes to being close to the direction of spud leg, until leveling board and spud leg butt, the second spud stop motion, because the position of the first spud of multiunit guide component restriction, make the distance of first spud to every spud leg equal, so a plurality of leveling boards can gradually with a plurality of spud leg butt one by one, and then the jacket body has been leveled, observe level sensor, the levelness of jacket body is in the error scope, reduce the complexity of construction.
Preferably, the leveling plate is arranged in an arc surface close to the side wall of the pile leg, the circle center of the arc surface is close to the pile leg, and the radius of the arc surface is not smaller than the outer diameter of the pile leg.
Through adopting above-mentioned technical scheme, the lateral wall of leveling board is the cambered surface setting, has increased the area of contact between leveling board and the spud leg, at the in-process of adjusting the levelness of spud leg, makes the leveling board can be to the spud leg quick positioning, and makes the spud leg be difficult for breaking away from with the leveling board, has reduced the complexity of leveling in-process construction.
Preferably, the leveling device further comprises a rolling assembly, the rolling assembly comprises two support plates which are arranged in parallel, a rotating shaft which is arranged horizontally and a roller which is sleeved on the rotating shaft, the two support plates are far away from the baffle plate, the side walls of the leveling rod are connected, the rotating shaft is positioned between the two support plates, the two ends of the rotating shaft are respectively connected with the two support plates, the roller is connected with the rotating shaft in a rotating mode, the side walls of the roller are higher than the end faces of the support plates, and the roller is in butt joint with the second fixing piles.
Through adopting above-mentioned technical scheme, gyro wheel and second spud pile butt, at the in-process of driving the seabed with second spud pile bottom, a plurality of gyro wheels keep away from each other, and the gyro wheel keeps away from each other and makes the backup pad remove, and the backup pad makes the baffle remove, has greatly reduced the wearing and tearing between baffle and the second spud pile, has increased the life of baffle, second spud pile.
Preferably, the leveling rod is connected with a limiting device for limiting the position of the jacket body, the limiting device comprises a connecting rod connected with the leveling rod, a limiting frame connected with the connecting rod, a limiting block, a limiting spring and a limiting rod connected with the pile leg, the limiting frame comprises a limiting part connected with the connecting rod, a connecting part and an action part, the action part is connected with the limiting part through the connecting part, and a distance larger than the thickness of the limiting rod is reserved between the action part and the limiting part;
the utility model discloses a stopper, including stopper, action portion, spacing spring, limiting rod, movable chamber has been seted up in the spacing portion, the one end of stopper stretches into in the movable chamber, the other end is close to action portion, the stopper is close to action portion's terminal surface is the hemisphere setting, spacing spring is located in the movable chamber, just spacing spring one end with spacing portion is connected, the other end with the stopper is connected, set up on the gag lever post with spacing groove that the stopper bottom matches, the stopper is kept away from spacing spring's one end inserts in the spacing groove, realizes the stopper with the joint of gag lever post, the gag lever post with action portion butt.
Through adopting above-mentioned technical scheme, at the in-process that the leveling rod is close to the spud leg, the leveling rod drives the connecting rod and moves to being close to the spud leg direction, the connecting rod drives the spacing to be close to spud leg direction and remove, the spacing pole stretches into between spacing portion and the action portion gradually, because the distance between spacing portion and the action portion is greater than the thickness of spacing pole, spacing spring makes the spacing pole have the buffering, the spacing pole can stretch into between spacing portion and the action portion by a plurality of directions, the terminal surface that the stopper is close to the spacing pole is the hemisphere setting, so at jacket body leveling in-process, stopper part gets into the spacing inslot, also can follow the spacing inslot and slide out, until a plurality of leveling boards and a plurality of spud legs butt respectively, for jacket body leveling, the stopper is the spacing inslot of getting into completely, stopper and spacing pole joint, the position of jacket body has been restricted, make the jacket body more stable in the sea water.
Preferably, the extension assembly comprises an extension tube sleeved on the pile leg and a driving plate connected with the extension tube, the extension tube is in sliding connection with the pile leg, the bottom end of the extension tube is flush with the bottom end of the pile leg, the extension tube is connected with the distance sensor, the driving piece is located above the extension tube, and the driving plate is connected with the driving piece.
Through adopting above-mentioned technical scheme, at sea bed surface roughness level, a spud leg contacts sea bed surface earlier, the distance sensor that is close to this spud leg can sense that this spud leg is less or be zero with the distance of seabed, this distance sensor can transmit the signal for controlling means, controlling means receives the signal, controlling means passes the driving piece that is connected with other spud legs with the signal again, the driving piece starts, the driving piece drives the drive plate motion, the drive plate drives extension pipe and stretches out the spud leg bottom, the length of extension spud leg, when extension pipe and seabed butt, the distance sensor who is connected with this extension pipe gives control module with the signal, control module receives the signal again with the signal transmission for the driving piece that is close this extension pipe, this driving piece is closed, the extension pipe stops moving, make the jacket body steadily place on the horizontal plane.
Preferably, the jacket body further comprises a supporting beam arranged horizontally, each two adjacent piles are connected and supported by a plurality of supporting beams, the guiding assembly comprises a guiding rod connected with the supporting beam, a guiding wheel connected with one end of the guiding rod in a rotating mode and far away from the supporting beam, the axis of the length direction of the guiding rod coincides with the axis perpendicular to the length direction of the supporting beam, the guiding wheels are mutually close to form a space, and the side wall of the first fixing pile is in butt joint with the guiding wheels.
Through adopting above-mentioned technical scheme, because the line of a plurality of spud leg homonymy pipe axis extreme points is regular polygon, guide bar length direction's axis and perpendicular to supporting beam length direction's axis coincidence, a plurality of guide pulleys enclose into a space, first spud pile stretches into in the space that a plurality of guide pulleys enclose to in the vertical sea bed of driving into, make first spud pile all the same to the distance of each spud leg, make the distance between a plurality of leveling boards to each spud leg the same, and then make the leveling board spacing to each spud leg.
The application also provides a use method of the shallow sea jacket leveling mechanism, which comprises the following steps:
s1, placing a jacket body: firstly, determining the placement position of the jacket body, placing the jacket body on a seabed surface by using a floating crane, and when one pile leg contacts the seabed surface, driving an extension pipe to extend by using a cylinder on the other pile leg until the extension pipe is abutted to the seabed, wherein the floating crane is separated from the jacket body;
s2, fixing the first fixing pile: vertically extending the first fixed pile into the sea from a space surrounded by a plurality of groups of guide assemblies by using a floating crane, enabling a plurality of leveling plates to be opposite to a plurality of pile legs respectively, and vertically driving the first fixed pile into the seabed by using a pile driving hammer until the top of the first fixed pile is lower than the tops of the pile legs;
s3, leveling the jacket body: the second fixed pile is vertically inserted into the first fixed pile by using a floating crane, the second fixed pile is vertically driven into the seabed by a pile driving hammer, the second fixed pile is firstly abutted with a plurality of rollers, the rollers are mutually far away by the second fixed pile in the process that the second fixed pile gradually penetrates into the seabed, the rollers drive a baffle to move, the baffle drives a leveling rod to move towards the direction close to a pile leg, the leveling rod drives a leveling plate to move towards the direction close to the pile leg, one leveling plate is firstly abutted with one pile leg until the leveling plates are respectively abutted with the pile legs, the second fixed pile is stopped being beaten, a horizontal sensor is observed, and the levelness of a jacket body is in an error range;
s4, limiting the position of the jacket body: when the leveling plates move towards the direction close to the pile legs, the leveling rods drive the limiting frames to move towards the direction close to the pile legs, the limiting rods extend into the space between the limiting parts and the action parts, and the limiting blocks enter the limiting grooves while the leveling plates are respectively abutted with the pile legs, so that the limiting blocks are clamped with the limiting rods;
s5, fixing the position of the jacket body: sequentially inserting a plurality of steel pipe piles into the pile legs, sequentially driving the plurality of steel pipe piles into the seabed, observing the horizontal sensor, grouting the pile legs in the error range by the levelness of the jacket body, and connecting the jacket body and the steel pipe piles.
By adopting the technical scheme, the jacket body is stably placed on the seabed, the first fixed piles and the second fixed piles are sequentially driven into the seabed, the second fixed piles drive the plurality of rollers to move towards the direction close to the pile legs respectively, and then the baffle plate, the leveling rod and the leveling plate are driven to move towards the direction close to the pile legs until the leveling plates are respectively abutted with the pile legs, so that the jacket body is horizontal; meanwhile, the leveling rod drives the limiting frame and the limiting block to move towards the direction close to the pile leg, the limiting rod is in butt joint with the limiting block, limiting of the jacket body is achieved, the jacket body is kept horizontal, the steel pipe pile is inserted into the pile leg, the steel pipe pile is driven into the seabed, and when the jacket body and the steel pipe pile are fixed, the jacket body is kept horizontal, and the construction complexity is reduced.
In summary, the application has the following beneficial effects:
1. in the process of driving the second fixed piles into the seabed, the second fixed piles enable the leveling plates to move towards the direction close to the pile legs, the leveling plates are gradually abutted with the pile legs until the leveling plates are respectively abutted with the pile legs, so that the jacket body is leveled, and the construction complexity is reduced;
2. when the leveling plate is close to the spud leg, the limiting rod gradually stretches into between the limiting part and the acting part, and the end face of the limiting block close to the limiting rod is in a hemispherical surface, so that in the leveling process of the jacket body, the limiting block part enters into the limiting groove and can slide out of the limiting groove until the jacket body is leveled, and in the limiting groove where the limiting block completely enters, the limiting block is clamped with the limiting rod, so that the position of the jacket body is limited, and the jacket body is more stable in seawater.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a shallow sea jacket leveling mechanism.
Fig. 2 is a cross-sectional view of a first fixing pile and a second fixing pile.
Fig. 3 is a schematic view of the entire structure of the leveling device.
Fig. 4 is an enlarged schematic view of the portion a in fig. 2.
Fig. 5 is a flow chart of a method of using the jacket leveling mechanism.
Reference numerals illustrate:
1. a jacket body; 11. a pile leg; 12. a support beam; 2. a guide assembly; 21. a guide rod; 22. a guide wheel; 3. a distance sensor; 4. an extension device; 41. an extension tube; 42. a driving plate; 43. a cylinder; 5. a first fixing pile; 51. a fixed block; 52. a bump; 6. a second fixed pile; 7. leveling means; 71. leveling rod; 72. a baffle; 73. leveling springs; 74. a rolling assembly; 741. a support plate; 742. a rotating shaft; 743. a roller; 75. leveling plates; 8. a limiting device; 81. a connecting rod; 82. a limiting frame; 821. a movable cavity; 83. a limiting block; 84. a limit spring; 85. a limit rod; 851. and a limit groove.
Detailed Description
The present application will be described in further detail with reference to the accompanying drawings.
The utility model provides a shallow sea marine jacket leveling mechanism, refer to fig. 1 and 2, including first spud 5, second spud 6 and levelling device 7, jacket body 1 is connected with level sensor, jacket body 1 is connected with guide assembly 2, guide assembly 2 is provided with the multiunit, multiunit guide assembly 2 encloses into a space for restricting the position of first spud 5, first spud 5 vertically stretches into the space that multiunit guide assembly 2 encloses, and vertically insert into the seabed, second spud 6 stretches into in the first spud 5 and inserts into the seabed, be used for fixing the position of second spud 6, jacket body 1 includes a plurality of spud legs 11, levelling device 7 is provided with the multiunit, multiunit levelling device 7 all is connected with first spud 5, and multiunit levelling device 7 just is a plurality of spud legs 11 respectively, levelling device 7 is connected with second spud 6, be used for driving levelling device 7 and be close to spud leg 11, until be connected with spud leg 11, leveling a plurality of spud 11, and then leveling jacket body 1 has reduced the complexity of construction.
Referring to fig. 1, the jacket body 1 further includes a plurality of support beams 12, the support beams 12 are horizontally disposed, the number of the pile legs 11 is three, the diameters of the three pile legs 11 are the same, the connection line of the same-side axial end points of the three pile legs 11 is in a regular triangle, and the three pile legs 11 are connected and supported by the plurality of support beams 12.
Referring to fig. 1, the guide assemblies 2 are provided with three groups, one group of guide assemblies 2 includes a guide bar 21 and a guide wheel 22, one end of the guide bar 21 is fixedly connected with the support beam 12, the other end is rotatably connected with the guide wheel 22, the axis of the guide bar 21 in the length direction coincides with the axis perpendicular to the length direction of the support beam 12, and the three guide wheels 22 are adjacent to each other to form a space.
The three guide wheels 22 act together to limit the position of the first fixing pile 5, so that after the first fixing pile 5 is inserted into the seabed, the distances from the first fixing pile 5 to the three pile legs 11 are the same, and the distance between the leveling device 7 and the aligned pile legs 11 is the same.
Referring to fig. 1, three piles 11 are respectively connected with an extension device 4, the extension device 4 comprises an extension assembly and a driving piece, the extension assembly comprises an extension tube 41 and a driving plate 42, the extension tube 41 is sleeved on the piles 11 and is in sliding connection with the piles 11, the bottom of the extension tube 41 is flush with the bottoms of the piles 11, the driving plate 42 is fixedly connected with the tops of the extension tubes 41, in order to achieve the same purpose, the driving piece can be an air cylinder 43, a hydraulic cylinder or the like, in this embodiment, the air cylinder 43 is fixedly connected with the piles 11, and a driving shaft of the extension tube is fixedly connected with the driving plate 42.
When the seabed surface is uneven, one pile leg 11 is firstly contacted with the seabed surface, the air cylinder 43 connected with the other two pile legs 11 is started, the air cylinder 43 drives the driving plate 42 to move, the air cylinder 43 drives the extension tube 41 to extend out of the bottom end of the pile leg 11, the length of the pile leg 11 is prolonged, and the jacket body 1 is stably placed on a horizontal plane.
Referring to fig. 1, a distance sensor 3 is fixedly connected to a side wall of an extension tube 41, the distance sensor 3 is close to the bottom of the extension tube 41, the distance sensor 3 is electrically connected with a control module, and the control module is electrically connected with three distance sensors 3 and three cylinders 43.
When one pile leg 11 contacts the seabed surface firstly, the distance sensor 3 close to the pile leg 11 senses that the distance between the pile leg 11 and the seabed is smaller or zero, the distance sensor 3 transmits a signal to a control device, the control module receives the signal, the control device transmits the signal to the air cylinders 43 connected with other pile legs 11, and the air cylinders 43 are started; when the extension tube 41 is abutted against the seabed, the distance sensor 3 connected with the extension tube 41 transmits a signal to the control module, the control module receives the signal and transmits the signal to the air cylinder 43 close to the extension tube 41, the air cylinder 43 is closed, and the extension tube 41 stops moving.
Referring to fig. 1 and 2, the first fixing pile 5 is cylindrical, two ends of the first fixing pile 5 are all open, the length of the first fixing pile 5 is greater than the height of the jacket body 1, the side wall of the first fixing pile 5 is in butt joint with the three guide wheels 22, the top of the first fixing pile 5 is lower than the top of the pile leg 11, the inner wall of the first fixing pile 5 is fixedly connected with a protruding block 52, the protruding block 52 is close to the leveling device 7 and is located above the leveling device 7, the outer wall of the first fixing pile 5 is fixedly connected with fixing blocks 51, the fixing blocks 51 are three, and the three fixing blocks 51 are respectively opposite to the three pile legs 11.
The lugs 52 limit the location at which the second steel pipe pile is driven into the seabed, reducing the likelihood of the second steel pipe pile becoming disengaged from the adjustment means.
Referring to fig. 1 and 2, the second fixing pile 6 is funnel-shaped, the diameter of the top end is larger than that of the bottom end, the length of the second fixing pile 6 is larger than the height of the jacket body 1, and the second fixing pile 6 is slidably connected with the inner wall of the first fixing pile 5. When the second fixing piles 6 are driven into the seabed for a certain depth, the second fixing piles enable the multiple groups of adjusting devices to start moving towards the direction approaching to the pile legs 11 at the same time.
Referring to fig. 1 and 3, the leveling devices 7 are provided with three groups, one group of leveling devices 7 comprises leveling rods 71, a baffle plate 72, leveling springs 73, rolling assemblies 74 and leveling plates 75, the leveling rods 71 penetrate through the first fixing piles 5 and the fixing blocks 51, the length direction of the leveling rods 71 is perpendicular to the length direction of the leveling rods which are opposite to the pile legs 11, the baffle plates 72 are located in the first fixing piles 5 and fixedly connected with the end faces of the leveling rods 71, the leveling springs 73 are sleeved on the leveling rods 71, one ends of the leveling springs 73 are fixedly connected with the baffle plates 72, and the other ends of the leveling springs are fixedly connected with the inner walls of the first fixing piles 5.
The fixing block 51 cooperates with the first fixing pile 5 to complete the limitation of the leveling rod 71. The leveling springs 73 have a buffering function, and when the second fixing piles 6 are separated from the first fixing piles 5, the leveling rods 71 drive the leveling plates 75 to move away from the pile legs 11, so that the first fixing piles 5 can be taken out conveniently.
Referring to fig. 2 and 3, the rolling assembly 74 includes a support plate 741, a rotation shaft 742 and rollers 743, the support plate 741 is provided with two in parallel, the two support plates 741 are all fixedly connected with the side wall of the baffle 72 away from the leveling rod 71, the support plate 741 is vertically arranged with the baffle 72, the rotation shaft 742 is horizontally arranged between the two support plates 741, two ends of the rotation shaft 742 are respectively fixedly connected with the two support plates 741, the rollers 743 are sleeved on the rotation shaft 742 and are rotatably connected with the rotation shaft 742, the side wall of the rollers 743 is higher than the end wall of the support plate 741, and the rollers 743 are abutted against the outer wall of the second fixing pile 6.
The second fixing piles 6 enable the plurality of rollers 743 to be far away from each other, the rollers 743 drive the supporting plates 741 to move, the supporting plates 741 drive the baffles 72 to move, the baffles 72 drive the leveling rods 71 to move towards the direction close to the pile legs 11, the leveling springs 73 are compressed, the leveling rods 71 drive the leveling plates 75 to move towards the direction close to the pile legs 11 until the leveling plates 75 are abutted to the pile legs 11, the jacket body 1 is leveled, and the construction complexity is reduced.
Referring to fig. 1 and 3, the leveling plate 75 is fixedly connected with one end of the leveling rod 71, which is close to the pile leg 11, the side wall of the leveling plate 75, which is close to the pile leg 11, is provided with an arc surface, the center of the arc surface is close to the pile leg 11, the radius of the arc surface is not smaller than the outer diameter of the pile leg 11, and the side wall of the leveling plate 75, which is far away from the leveling rod 71, is abutted with the side wall of the pile leg 11.
The side wall of the leveling plate 75 is arranged in an arc surface, so that the contact area between the leveling plate 75 and the pile leg 11 is increased, the leveling plate 75 can rapidly position the pile leg 11, and the construction complexity in the leveling process is reduced.
Referring to fig. 3 and 4, the limiting devices 8 are provided with three groups, the three groups of limiting devices 8 are respectively connected with the three leveling rods 71, and one group of limiting devices 8 comprises a connecting rod 81, a limiting frame 82, a limiting block 83, a limiting spring 84 and a limiting rod 85, one end of the connecting rod 81 is fixedly connected with the leveling rods 71, and the length direction of the connecting rod 81 is perpendicular to the length direction of the leveling rods 71.
Referring to fig. 4, the limiting frame 82 includes a limiting portion, a connecting portion and an action portion, the limiting portion is fixedly connected with the connecting rod 81, a movable cavity 821 is formed in the limiting portion, one end of the limiting block 83 penetrates through the limiting portion and stretches into the movable cavity 821, the end face of the other end of the limiting block 83 is in a hemispherical surface, the limiting block 83 is slidably connected with the limiting portion, the limiting spring 84 is located in the movable cavity 821, one end of the limiting spring 84 is fixedly connected with the limiting block 83, the other end of the limiting spring 84 is fixedly connected with the limiting portion, the connecting portion is fixedly connected with the limiting portion, the action portion is fixedly connected with one end of the connecting portion, which is far away from the limiting portion, the action portion is parallel to the limiting portion, and the distance between the limiting portion and the action portion is greater than the thickness of the limiting rod 85.
Referring to fig. 1 and 3, a limit rod 85 is fixedly connected with the outer wall of the pile leg 11, a limit groove 851 is formed in the top of the limit rod 85, the limit groove 851 is matched with the bottom end of a limit block 83, the limit rod 85 extends between the limit part and the action part, the bottom end of the limit block 83 is located in the limit groove 851, the limit block 83 is clamped with the limit rod 85, and the limit rod 85 is abutted with the action part.
In the process that the leveling rod 71 is close to the pile leg 11, the leveling rod 71 drives the connecting rod 81 to move towards the direction close to the pile leg 11, the connecting rod 81 drives the limiting frame 82 to move towards the direction close to the pile leg 11, the limiting rod 85 gradually stretches into between the limiting part and the acting part, the limiting block 83 enters the limiting groove 851, and the limiting block 83 is clamped with the limiting rod 85, so that the position of the jacket body 1 is limited. In the leveling process of the jacket body 1, as the end face of one end of the limiting block 83 is in a hemispherical shape, part of the limiting block is in the limiting groove 851, and can also slide out of the limiting groove 851 until the three leveling plates 75 are respectively abutted with the three pile legs 11, the limiting block 83 is in the limiting groove 851 completely in,
the embodiment also provides a use method of the shallow sea jacket leveling mechanism, referring to fig. 5, comprising the following steps:
s1, placing a jacket body 1: firstly, determining the placement position of the jacket body 1, placing the jacket body 1 on a seabed surface by using a floating crane, and when one pile leg 11 contacts the seabed surface, driving the extension tube 41 to extend by the air cylinder 43 on the other pile leg 11 until the extension tube 41 is abutted to the seabed, and separating the floating crane from the jacket body 1;
s2, fixing the first fixing piles 5: vertically extending the first fixed piles 5 into the sea from the space surrounded by the plurality of groups of guide assemblies 2 by using a floating crane, enabling the plurality of leveling plates 75 to respectively face the plurality of pile legs 11, and vertically driving the first fixed piles 5 into the seabed by using a pile driving hammer until the tops of the first fixed piles 5 are lower than the tops of the pile legs 11;
s3, leveling the jacket body 1: the second fixed pile 6 is vertically inserted into the first fixed pile 5 by using a floating crane, the second fixed pile 6 is vertically driven into the seabed by a pile driving hammer, the second fixed pile 6 is firstly abutted with a plurality of rollers 743, the rollers 743 are mutually far away in the process that the second fixed pile 6 gradually penetrates into the seabed, the rollers 743 drive the baffle 72 to move, the baffle 72 drives the leveling rod 71 to move towards the direction close to the pile leg 11, the leveling rod 71 drives the leveling plate 75 to move towards the direction close to the pile leg 11, one leveling plate 75 is firstly abutted with one pile leg 11 until a plurality of leveling plates 75 are respectively abutted with the pile legs 11, the hammering of the second fixed pile 6 is stopped, a horizontal sensor is observed, and the levelness of the jacket body 1 is within an error range;
s4, limiting the position of the jacket body 1: while leveling plates 75 move towards the direction approaching to the pile legs 11, leveling rods 71 drive limiting frames 82 to move towards the direction approaching to the pile legs 11, limiting rods 85 extend between the limiting parts and the acting parts, a plurality of leveling plates 75 are respectively abutted with a plurality of pile legs 11, limiting blocks 83 enter limiting grooves 851, and the limiting blocks 83 are clamped with the limiting rods 85;
s5, fixing the position of the jacket body 1: sequentially inserting a plurality of steel pipe piles into the pile legs 11, sequentially driving the plurality of steel pipe piles into the seabed, observing the horizontal sensor, grouting the pile legs 11 when the levelness of the jacket body 1 is within an error range, and connecting the jacket body 1 with the steel pipe piles.
The embodiments of the present application are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (4)

1. A shallow sea marine jacket leveling mechanism which characterized in that: the device comprises a first fixed pile (5) vertically inserted into a seabed, a plurality of groups of leveling devices (7) connected with the first fixed pile (5), a horizontal sensor connected with a jacket body (1), a plurality of groups of guide assemblies (2) for limiting the position of the first fixed pile (5) connected with the jacket body (1), the guide assemblies (2) connected with the first fixed pile (5), the jacket body (1) comprises a plurality of pile legs (11), the connection lines of the same side pipe axis end points of the pile legs (11) are regular polygons, the pile legs (11) are connected with an extension device (4), the extension device (4) is connected with a distance sensor (3), the extension device (4) comprises a driving piece connected with the pile legs (11) and an extension assembly connected with the driving piece, and the driving piece is electrically connected with a control device which is electrically connected with the distance sensor (3) and the driving piece;
the leveling device (7) is respectively connected with a plurality of pile legs (11), the first fixing piles (5) are connected with second fixing piles (6) for controlling the leveling device (7) to move, the first fixing piles (5) are sleeved on the second fixing piles (6), the second fixing piles (6) are in sliding connection with the first fixing piles (5), the bottom ends of the second fixing piles (6) are vertically inserted into the seabed, the second fixing piles (6) are connected with the leveling device (7), and the lengths of the first fixing piles (5) and the second fixing piles (6) are all larger than the height of the jacket body (1);
the leveling device (7) comprises a leveling rod (71) penetrating through the side wall of the first fixing pile (5), a baffle plate (72) connected with the leveling rod (71), a leveling spring (73) sleeved on the leveling rod (71) and a leveling plate (75) connected with one end, far away from the baffle plate (72), of the leveling rod (71), the fixing block (51) is penetrated through the leveling rod (71), the leveling rod (71) is in sliding connection with the first fixing pile (5) and the fixing block (51), the baffle plate (72) is positioned in the first fixing pile (5), the baffle plate (72) is in butt joint with the second fixing pile (6) and slides, the leveling spring (73) is positioned in the first fixing pile (5), one end of the leveling spring (73) is connected with the first fixing pile (5), the other end of the leveling spring is connected with the baffle plate (72), and the outer diameter of the leveling spring is in butt joint with the outer diameter of the second fixing pile (6);
the leveling plate (75) is arranged in an arc surface manner close to the side wall of the pile leg (11), the circle center of the arc surface is close to the pile leg (11), and the radius of the arc surface is not smaller than the outer diameter of the pile leg (11);
the leveling device (7) further comprises a rolling assembly (74), the rolling assembly (74) comprises two support plates (741) which are arranged in parallel, a rotating shaft (742) which is arranged horizontally and a roller (743) which is sleeved on the rotating shaft (742), the two support plates (741) are connected with the side wall of the baffle (72) which is far away from the leveling rod (71), the rotating shaft (742) is positioned between the two support plates (741), the two ends of the rotating shaft (742) are respectively connected with the two support plates (741), the roller (743) is connected with the rotating shaft (742) in a rotating way, the side wall of the roller (743) is higher than the end face of the support plate (741), and the roller (743) is in butt joint with the second fixing pile (6);
the jacket body (1) still includes a supporting beam (12) that the level set up, every two adjacent spud leg (11) all support through a plurality of supporting beams (12) connection each other, guide assembly (2) include with guide bar (21) that supporting beam (12) are connected, with guide bar (21) keep away from one end rotation of supporting beam (12) is connected leading wheel (22), the axis of guide bar (21) length direction and perpendicular to supporting beam (12) length direction's axis coincidence, a plurality of leading wheel (22) are close to each other and form a space, the lateral wall of first spud pile (5) and a plurality of equal butt of leading wheel (22).
2. A shallow sea jacket leveling mechanism as set forth in claim 1 wherein: the leveling rod (71) is connected with a limiting device (8) for limiting the position of the jacket body (1), the limiting device (8) comprises a connecting rod (81) connected with the leveling rod (71), a limiting frame (82) connected with the connecting rod (81), a limiting block (83), a limiting spring (84) and a limiting rod (85) connected with the pile leg (11), the limiting frame (82) comprises a limiting part connected with the connecting rod (81), a connecting part and an action part, the action part is connected with the limiting part through the connecting part, and a distance larger than the thickness of the limiting rod (85) is reserved between the action part and the limiting part;
offer movable chamber (821) in spacing portion, the one end of stopper (83) stretches into in movable chamber (821), the other end is close to action portion, stopper (83) are close to the terminal surface of action portion is the hemisphere setting, spacing spring (84) are located in movable chamber (821), just spacing spring (84) one end with spacing portion is connected, the other end with stopper (83) are connected, offered on gag lever post (85) with spacing groove (851) that stopper (83) bottom matches, stopper (83) are kept away from one end of spacing spring (84) inserts in spacing groove (851), realize stopper (83) with the joint of gag lever post (85), gag lever post (85) with action portion butt.
3. A shallow sea jacket leveling mechanism as set forth in claim 1 wherein: extension subassembly including the cover establish extension pipe (41) on spud leg (11), with extension pipe (41) drive plate (42) that are connected, extension pipe (41) with spud leg (11) sliding connection, extension pipe (41) bottom with spud leg (11) bottom parallel and level, extension pipe (41) with distance sensor (3) are connected, the driving piece is located extension pipe (41) top, drive plate (42) with the driving piece is connected.
4. A method of use for a shallow sea jacket leveling mechanism as claimed in any one of claims 1 to 3, wherein: the method comprises the following steps:
s1, placing a jacket body (1): firstly, determining the placement position of a jacket body (1), placing the jacket body (1) on a seabed by using a floating crane, and when one pile leg (11) contacts the seabed, driving an extension tube (41) to extend by a cylinder (43) on the other pile leg (11) until the extension tube (41) is abutted to the seabed, and separating the floating crane from the jacket body (1);
s2, fixing the first fixing pile (5): the first fixed piles (5) are vertically stretched into the sea from the space surrounded by the guide assemblies (2) by using a floating crane, the leveling plates (75) are respectively opposite to the pile legs (11), and the first fixed piles (5) are vertically driven into the seabed by using a pile driving hammer until the tops of the first fixed piles (5) are lower than the tops of the pile legs (11);
s3, leveling the jacket body (1): the second fixed pile (6) is vertically inserted into the first fixed pile (5) by using a floating crane, the second fixed pile (6) is vertically driven into the seabed by a pile driving hammer, the second fixed pile (6) is firstly abutted with a plurality of rollers (743), the rollers (743) are mutually far away in the process that the second fixed pile (6) gradually penetrates into the seabed, the rollers (743) drive the baffle (72) to move, the baffle (72) drives the leveling rod (71) to move towards the direction close to the pile leg (11), the leveling rod (71) drives the leveling plate (75) to move towards the direction close to the pile leg (11), one leveling plate (75) is firstly abutted with one pile leg (11) until the plurality of leveling plates (75) are respectively abutted with the pile legs (11), the second fixed pile (6) is stopped being beaten, a horizontal sensor is observed, and the levelness of the jacket body (1) is in an error range;
s4, limiting the position of the jacket body (1): when the leveling plates (75) move towards the direction close to the pile legs (11), the leveling rods (71) drive the limiting frames (82) to move towards the direction close to the pile legs (11), the limiting rods (85) extend into the space between the limiting parts and the action parts, the limiting blocks (83) enter the limiting grooves (851) while the leveling plates (75) are respectively abutted with the pile legs (11), and the limiting blocks (83) are clamped with the limiting rods (85);
s5, fixing the position of the jacket body (1): sequentially inserting a plurality of steel pipe piles into the pile legs (11), sequentially driving the plurality of steel pipe piles into the seabed, observing the horizontal sensor, grouting the pile legs (11) within an error range, and connecting the jacket body (1) and the steel pipe piles.
CN202310646301.0A 2023-06-02 2023-06-02 Shallow sea jacket leveling mechanism and use method thereof Active CN116427375B (en)

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KR20130023878A (en) * 2011-08-30 2013-03-08 현대중공업 주식회사 Sea jacket structure leveling method
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CN107268669A (en) * 2017-08-14 2017-10-20 浙江华蕴海洋工程技术服务有限公司 Piling jacket construction method, rear piling jacket construction component, jacket of driving piles afterwards afterwards
CN107859051A (en) * 2017-10-26 2018-03-30 中交第三航务工程局有限公司宁波分公司 The leveling method of levelling device and jacket
CN114108686A (en) * 2022-01-25 2022-03-01 中国长江三峡集团有限公司 Integrated offshore wind power foundation
CN216948415U (en) * 2022-03-15 2022-07-12 天津市海王星海上工程技术股份有限公司 Movable stable pile platform suitable for offshore steel pile driving
CN218492546U (en) * 2022-09-13 2023-02-17 南通长风新能源装备科技有限公司 Offshore wind power jacket
CN115897575A (en) * 2023-02-21 2023-04-04 中天科技集团海洋工程有限公司 Underwater pile sinking device and process based on suction cylinder type pile stabilizing platform

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130023878A (en) * 2011-08-30 2013-03-08 현대중공업 주식회사 Sea jacket structure leveling method
CN103556649A (en) * 2013-11-08 2014-02-05 广东明阳风电产业集团有限公司 Jacket leveling mechanism of offshore wind turbine generator system
CN107268669A (en) * 2017-08-14 2017-10-20 浙江华蕴海洋工程技术服务有限公司 Piling jacket construction method, rear piling jacket construction component, jacket of driving piles afterwards afterwards
CN107859051A (en) * 2017-10-26 2018-03-30 中交第三航务工程局有限公司宁波分公司 The leveling method of levelling device and jacket
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