CN115045273B - Deep water self-elevating wind power installation platform pile shoe with good sideslip prevention performance - Google Patents
Deep water self-elevating wind power installation platform pile shoe with good sideslip prevention performance Download PDFInfo
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- CN115045273B CN115045273B CN202210534696.0A CN202210534696A CN115045273B CN 115045273 B CN115045273 B CN 115045273B CN 202210534696 A CN202210534696 A CN 202210534696A CN 115045273 B CN115045273 B CN 115045273B
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- 238000009434 installation Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 230000002265 prevention Effects 0.000 title claims abstract description 15
- 238000013461 design Methods 0.000 claims abstract description 11
- 230000009471 action Effects 0.000 claims abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
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- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 230000006872 improvement Effects 0.000 description 8
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
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- 238000010248 power generation Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/72—Pile shoes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/02—Artificial 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
- E02B17/027—Artificial 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
- E02D27/525—Submerged foundations, i.e. submerged in open water using elements penetrating the underwater ground
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0061—Production methods for working underwater
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/30—Miscellaneous comprising anchoring details
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
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Abstract
The invention relates to a deep water self-elevating type wind power installation platform pile shoe with good sideslip prevention performance. The pile shoe body and the pile leg unit are inserted and matched into a whole. The anti-slip unit is composed of a plurality of anti-slip subunits assembled in the pile shoe body. The anti-slip subunit comprises a barbed pin and a dragging part. The ground pin is inserted into the pile shoe body and is kept at a theoretical design position relative to the pile shoe body under the action of pulling force from the dragging part. In the pile inserting process, the ground penetrating pin is firstly in top contact with the seabed stratum and gradually penetrates into the part below the seabed stratum under the continuous action of the lower pressure, so that the transverse anti-sliding capability of the pile shoe is effectively improved. In addition, when pile pulling operation is carried out, under some extreme conditions, when the ground penetrating pin cannot be smoothly pulled out of the seabed stratum, the ground penetrating pin can be quickly pulled out of the pile shoe body and is finally independently kept in the seabed stratum, and the implementation of the quick pile pulling operation is facilitated.
Description
Technical Field
The invention relates to the technical field of wind power installation platform manufacturing, in particular to a deep water self-elevating wind power installation platform pile shoe with good sideslip prevention performance.
Background
Offshore wind power generation is developed as a pollution-free renewable energy source and is developed very quickly, and a wind power installation platform is used as important basic equipment for offshore wind power project construction. The self-elevating wind power installation platform is provided with pile legs capable of freely elevating, the pile legs extend to the seabed during operation, stand on the seabed together with pile shoes, and support the platform by utilizing the pile legs, and enable the bottom of the platform to be away from the sea surface for a certain distance, so that the influence of the sea wave current on the platform is avoided, and the operation can be carried out on the platform.
At present, as wind power installation work advances from 50m deep water to 80m deep water, the lateral load borne by a pile shoe is increased due to the increase of sea wave load, and the lateral anti-sliding capability of the pile shoe needs to be further enhanced. In order to solve the above problems, it is common practice to increase the contact area between the pile shoe and the seabed geology. This measure has the following disadvantages, in particular: 1) In order to increase the contact area between the pile shoe and the seabed geology, the structural size of the pile shoe needs to be further increased, the structural weight is larger, and the economic performance is poor; 2) When pile shoe structure size enlarges, all the load that hangs down increases during pile pulling, and the lifting force requirement to wind-powered electricity generation mounting platform operating system becomes high, and is unfavorable for pulling out the pile fast.
According to the latest research results, in order to enhance the lateral anti-slip capability of the pile shoe, a certain number of vertical anti-slip plates can be added on the bottom wall of the pile shoe to be inserted into the submarine geology, for example, the chinese utility model CN202120592152.0 discloses an anti-slip pile shoe, which comprises a pile shoe body and anti-slip plates. The anti-skidding plates are arranged at the bottom of the pile shoe body in a central symmetry mode and comprise anti-skidding plate bodies, connecting columns and wedge-shaped cutting teeth, the upper ends of the anti-skidding plate bodies are fixedly connected to the bottom of the pile shoe body through the connecting columns, and the wedge-shaped cutting teeth are arranged at the lower ends of the sliding plate bodies. Although the anti-slip capability of the pile shoe can be effectively improved by the arrangement of the anti-slip plate. However, the technique has the following problems, specifically: 1) The arrangement of the antiskid plates is excessive, the assembly operation is difficult to execute, and the assembly work is very troublesome and time-consuming; 2) When the platform is used for pile inserting and pulling operation for multiple times, all loads of the antiskid plates are large and easy to damage, and the antiskid plates are directly connected with the pile shoe body structure, so that the pile shoe is further damaged, and large manpower and material resources are required to be invested for repair subsequently; 3) When extreme sea conditions are met, too many antiskid plates are inserted into the seabed geology, the pile pulling time is too long, and pile shoes cannot be discarded quickly, so that the emergency risk is increased. Thus, there is a need for the subject group to address the above-mentioned problems.
Disclosure of Invention
Therefore, in view of the above-mentioned problems and drawbacks, the objective of the present invention is to collect relevant data, and through many evaluations and considerations, and through continuous experiments and modifications by the personnel of the objective group, the pile shoe of the deep-water self-elevating wind power installation platform with good sideslip prevention performance will appear.
In order to solve the technical problem, the invention relates to a deep water self-elevating type wind power installation platform pile shoe with good sideslip prevention performance, which comprises a pile shoe body. The pile shoe body and the pile leg unit are inserted and matched into a whole. The deep water self-elevating type wind power installation platform pile shoe with good sideslip prevention performance further comprises an anti-slip unit. The anti-slip unit is used for improving the anti-sideslip resistance of the pile shoe body and is composed of a plurality of anti-slip subunits assembled in the pile shoe body. The anti-slip subunit comprises a barbed ground pin and a dragging part. The dragging part is arranged in the pile shoe body and is matched with the ground piercing pin. The ground pin is inserted into the pile shoe body and is kept at a theoretical design position relative to the pile shoe body under the action of pulling force from the dragging part. When the piling operation is performed, the ground penetrating pin penetrates the seabed ground due to the downward pressure. When pile pulling operation is carried out, the ground pin is pulled out from the seabed stratum or the pile shoe body due to the pulling force.
As a further improvement of the technical scheme of the invention, the number of the anti-slip subunits is set to be 3, and the anti-slip subunits are uniformly distributed in the circumferential direction around the central axis of the pile shoe body.
As a further improvement of the technical scheme of the invention, the dragging part comprises a bearing part and a flexible tension part. The force bearing part is fixed in the cavity of the pile shoe body and is positioned on one side of the ground piercing pin. The flexible tension part is connected with the upper end part of the ground pricking pin and is directly pulled by the force bearing part.
As a further improvement of the technical scheme of the invention, the force bearing part is preferably a plastic part, and the tensile strength of the force bearing part is lower than 30MPa. The flexible tension member is preferably a chain. Under the condition of normal pile pulling, the bearing part always applies a pulling force to the ground pricking pin by the flexible tension part. Under the condition of abnormal pile pulling, the force bearing member is broken by the over-limit pulling force from the flexible tension member, so that the pulling of the ground penetrating pin is relieved.
As a further improvement of the technical scheme of the invention, the dragging part also comprises a guide chain component. The chain guide component comprises a supporting seat, a pin shaft and a chain guide wheel. The supporting seat is also arranged in the cavity of the pile shoe body and is kept at a theoretical design position together with the bearing piece. The supporting seat is internally provided with a containing groove for containing the guide chain wheel. The pin shaft is inserted and matched on the supporting seat and transversely penetrates through the accommodating groove. The guide chain wheel is sleeved on the pin shaft and can freely perform circumferential rotation motion under the action of the friction force of the flexible tension member.
As a further improvement of the technical scheme of the invention, the anti-slip subunit also comprises a vertical pipe and a guide sleeve. The vertical pipe is vertically inserted and matched and is fixed in the cavity of the pile shoe body. The vertical pipe is internally provided with a through passage for the flexible tension member to freely pass through. The guide sleeve is also inserted and fixed in the cavity of the pile shoe body and is butted with the lower end part of the vertical pipe. An accommodating cavity matched with the ground pin in shape is arranged in the guide sleeve. Under the condition of abnormal pile pulling, the bearing member is broken due to the over-limit traction force from the flexible tension member, and the ground piercing pin is finally left in the seabed stratum due to the loss of the traction force.
As a further improvement of the technical scheme of the invention, a conical barbed section is formed at the free end of the barbed pin, and the taper of the barbed section is controlled to be 1:5-1:7.
As a further improvement of the technical scheme of the invention, an anti-wear coating which completely covers the conical barbed section is additionally arranged on the outer side wall of the barbed pin.
As a further improvement of the technical proposal of the invention, at least one inclined needling section is formed on the peripheral side wall of the needling pin above the conical needling section, and the inclination angle beta of the inclined needling section is controlled between 30 and 45 degrees.
Compared with the pile shoe of the wind power installation platform with the traditional design structure, in the technical scheme disclosed by the invention, the pile shoe body is simultaneously provided with a plurality of anti-slip subunits. And each anti-slip subunit comprises an independent ground pin inserted in the pile shoe body. In the pile inserting process, the ground penetrating pin is firstly in top contact with a seabed stratum and gradually goes deep below the seabed stratum under the continuous action of lower pressure until the bottom wall of the pile shoe body is in top contact with the seabed stratum, so that the transverse slip resistance of the pile shoe is effectively improved, the pile leg has the capability of resisting impact force from sea billow, and the application safety of the deep-water self-elevating wind power installation platform is finally ensured.
The ground pin is subjected to a tensile force, and thus, the ground pin is inserted into and assembled with the pile shoe body. When pile pulling operation is carried out, in some extreme conditions, when the ground pin can not be smoothly pulled out of the seabed stratum, the ground pin can also be quickly pulled out of the pile shoe body and finally is singly kept in the seabed stratum.
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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only 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 application state diagram of the deep water self-elevating wind power installation platform pile shoe with good sideslip prevention performance and the pile leg during the insertion.
Fig. 2 is a schematic perspective view of a first view angle of a pile shoe of the deep water self-elevating wind power installation platform with good sideslip prevention performance.
Fig. 3 is a schematic perspective view of a pile shoe of the deep water self-elevating wind power installation platform with good sideslip prevention performance in a second view angle.
Fig. 4 is a front view of fig. 2.
Fig. 5 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 4.
Fig. 6 is a perspective view of a third perspective of the pile shoe of the deep water self-elevating wind power installation platform according to the present invention (with the front shell plate of the pile shoe body hidden).
Fig. 7 is an enlarged view of part I of fig. 6.
1-pile shoe body; 2-an anti-slip unit; 21-an anti-slippage subunit; 211-barbed ground pins; 2111-conical thorn section; 2112-oblique needling section; 212-a drag section; 2121-plastic parts; 2122-chain; 2123-a guide chain component; 21231-a support base; 21232-pin; 21233-guide sprocket; 213-a standpipe; 214-pilot sleeve.
Detailed Description
In the description of the present invention, it is to be understood that the terms "front", "rear", "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
As shown in fig. 1, it can be seen that in practical applications, the shoe is assembled at the lower end of the leg, and the two cooperate to achieve stable jacking of the wind power installation platform.
The disclosure of the present invention will be described in further detail with reference to specific embodiments, and fig. 2 and 3 are schematic perspective views of two different viewing angles of the pile shoe of the deep water self-elevating wind power installation platform with good anti-sideslip performance according to the present invention, and it can be seen that the pile shoe mainly comprises a pile shoe body 1 and an anti-skidding unit 2. Wherein, the pile shoe body 1 is inserted and matched with a plurality of pile legs which can be vertically inserted into seawater into a whole. The anti-sliding unit 2 is used to raise the anti-sideslip resistance of the pile shoe body, and is composed of a plurality of anti-sliding subunits 21 assembled in the pile shoe body 1. The number of the anti-slip subunits 21 is set to 3, and the anti-slip subunits are uniformly distributed in the circumferential direction around the central axis of the pile shoe body 1. As shown in fig. 4-6, anti-slip subunit 21 preferably includes barbed pins 211 and drag portions 212. The drag portion 212 is disposed in the pile shoe body 1 and is engaged with the ground piercing pin 211. The ground pin 211 is inserted into the shoe body 1 and is held at a theoretical design position with respect to the shoe body 1 by a pulling force from the dragging portion 212. In the pile inserting process, the ground piercing pin 211 is firstly in top contact with a seabed stratum and gradually goes deep below the seabed stratum under the continuous action of lower pressure until the bottom wall of the pile shoe body 1 is in top contact with the seabed stratum, so that the transverse slip resistance of the pile shoe is effectively improved, the pile leg has the capability of resisting impact force from sea huge waves, and the application safety of the deep-water self-elevating wind power installation platform is finally ensured.
In order to reduce the downward insertion resistance of the barbed pin 211 and ensure that the barbed pin can be more smoothly and thoroughly penetrated into the subsea strata, as shown in fig. 5, a tapered barbed section 2111 may be formed at the free end of the barbed pin 211, and the taper thereof is controlled to 1:5-1:7.
According to long-term experiment results, after a period of application, the ground pricking pin 211 is worn and dull due to the friction force, so that the difficulty of pricking the ground pricking pin 211 into the seabed stratum is increased, and a large amount of manpower is required to be consumed for repairing and replacing the ground pricking pin 211 subsequently. In view of this, as a further optimization of the above technical solution, an anti-wear coating (not shown in the figure) may be further added on the outer side wall of the barbed pin 211, and the conical barbed section 2111 is preferably covered on the whole.
As is clear from fig. 3, 4, 5 and 6, a plurality of inclined barbed sections 2112 extend outward from the outer side wall of the barbed pin 211, and the inclination angle β is controlled to be 30 to 45 °. In this way, in the pile inserting process, the tapered stabbing section 2111 is firstly in top contact with the seabed stratum and gradually penetrates to the set depth below the seabed stratum under the continuous action of the lower pressure, at this time, the inclined stabbing section 2112 is in top contact with the seabed stratum and also gradually penetrates below the seabed stratum under the continuous action of the lower pressure until the bottom wall of the pile shoe body 1 is in top contact with the seabed stratum. The tapered barbed sections 2111 and the inclined barbed sections 2112 cooperate with each other to limit the lateral sliding displacement of the pile shoe, so that the transverse anti-sliding capability of the pile shoe can be further improved.
It is known that, according to common design knowledge, the dragging part 212 can adopt various design structures to realize the traction of the ground pin 211 so as to keep the correct assembly relation with the pile shoe body 1 all the time. However, an embodiment is proposed herein that has a simple design, is easy to manufacture and implement, and facilitates the replacement of the barbed pins 211 at a later time, as follows: as can be seen in fig. 4, 5 and 6, the dragging part 212 preferably comprises a plastic part 2121 and a chain 2122. Plastic part 2121 is fixed in the cavity of pile shoe body 1 and located on one side of ground pin 211. The chain 2122 is connected to the upper end of the ground pin 211 and is directly pulled by the plastic part 2121.
After a period of application, when the ground pin 211 reaches the service life or is damaged due to too fast abrasion, the pile shoe body 1 does not need to be damaged, and an operator can conveniently and quickly release the restriction of the chain 2122 on the plastic part 2121, thereby facilitating the subsequent replacement operation of the plastic part.
Under normal pile pulling conditions, the plastic part 2121 always exerts a pulling force on the ground pin 211 by the chain 2122. Of course, when pile pulling operation is performed, in some extreme cases, when the ground pin 211 cannot be smoothly pulled out from the seabed ground, it can be quickly pulled out from the pile shoe body 1 and finally be left alone in the seabed ground. The reason for this is that: in case of abnormal pile pulling, the plastic part 2121 (preferably having a tensile strength lower than 30 MPa) is broken by the over-limit pulling force from the chain 2122 to release the pulling force on the ground pin 211, so as to ensure that the pile shoe body 1 can be smoothly and rapidly pulled out from the seabed stratum, thereby reducing the emergency risk.
As can be further seen from fig. 4, 5 and 6, a chain guide assembly 2123 is further added to the dragging portion 212 to avoid the jamming phenomenon during the process of dragging or releasing the barbed pin 211. As shown in fig. 7, chain guide assembly 2123 includes support base 21231, pin 21232, and chain guide wheel 21233. The support base 21231 is also arranged in the cavity of the pile shoe body 1, and is kept in the theoretical design position with the plastic part 2121. A receiving groove for receiving the chain guide wheel 21233 is formed in the supporting seat 21231. The pin 21232 is inserted into the supporting seat 21231 and traverses the receiving groove. The chain guide 21233 is sleeved on the pin 21232 and has an annular guide groove around its outer circumferential side wall to match with the chain 2122. During the process of performing or releasing the pulling operation of the barbed pins 211, the chain 2122 slides along the annular guide groove at all times, and the guide chain wheel 21233 freely performs a circumferential rotation movement when receiving a frictional force of the chain 2122.
In order to ensure that the ground pin 211 can be vertically inserted into the seabed ground during the course of performing the pile inserting operation, and thus to avoid the problem of inclined insertion caused by insufficient holding force, as a further optimization of the above technical solution, as shown in fig. 4, 5 and 6, the anti-slip subunit 21 is further provided with a standpipe 213 and a pilot sleeve 214. The vertical tube 213 is vertically inserted and fixed in the cavity of the pile shoe body 1. The vertical tube 213 has a through passage for the chain 2122 to pass through freely. The guide sleeve 214 is also inserted and fixed in the cavity of the pile shoe body 1 and is butted with the lower end of the vertical tube 213. The guiding sleeve 214 is provided with a receiving cavity matching with the ground pin 211. In the case of abnormal pile pulling, the plastic part 2121 is broken by the over-limit pulling force from the chain 2122, and the ground pin 211 is finally left in the seabed ground layer due to the loss of the pulling force. Thus, the guide sleeve 214 is used as the insertion transition between the barbed ground pin 211 and the pile shoe body 1, which can effectively improve the holding force applied to the barbed ground pin 211, thereby avoiding the occurrence of the phenomenon of 'toppling' caused by the over-limit lateral force.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A deep water self-elevating wind power installation platform pile shoe with good sideslip prevention performance comprises a pile shoe body; the pile shoe body and the pile leg unit are inserted and matched into a whole, and the pile shoe is characterized by further comprising an anti-sliding unit; the anti-slip unit is used for improving the anti-sideslip resistance of the pile shoe body and is composed of a plurality of anti-slip subunits assembled in the pile shoe body; the anti-slip subunit comprises a barbed ground pin and a dragging part; the dragging part is arranged in the pile shoe body and is matched with the ground piercing pin; the ground pin is inserted into the pile shoe body and is kept at a theoretical design position relative to the pile shoe body under the action of a pulling force from the dragging part; when the pile inserting operation is carried out, the ground penetrating pin penetrates into the seabed stratum due to the downward pressure; when pile pulling operation is carried out, the ground pin is pulled out from the seabed stratum or the pile shoe body due to the pulling force;
the number of the anti-slip subunits is set to be 3, and the anti-slip subunits are uniformly distributed around the central axis of the pile shoe body in the circumferential direction;
the dragging part comprises a bearing part and a flexible tension part; the force bearing part is fixed in the cavity of the pile shoe body and is positioned on one side of the ground piercing pin; the flexible tension piece is connected with the upper end part of the ground pricking pin and is directly pulled by the force bearing piece;
the bearing part is a plastic part, and the tensile strength of the bearing part is lower than 30MPa; the flexible tension piece is a chain; under the condition of normal pile pulling, the force bearing piece always applies a pulling force to the ground piercing pin by the flexible tension piece; under the condition of abnormal pile pulling, the force bearing part is broken due to the over-limit pulling force from the flexible tension part, so that the ground penetrating pin is released from being pulled;
the dragging part also comprises a guide chain component; the chain guide component comprises a supporting seat, a pin shaft and a chain guide wheel; the supporting seat is also arranged in the cavity of the pile shoe body and is kept at a theoretical design position together with the bearing part; an accommodating groove for accommodating the guide chain wheel is formed in the supporting seat; the pin shaft is inserted and assembled on the supporting seat and transversely penetrates through the accommodating groove; the guide chain wheel is sleeved on the pin shaft and can freely execute circumferential rotation motion under the action of the friction force of the flexible tension piece.
2. The deep water self-elevating wind power installation platform pile shoe with good sideslip prevention performance according to claim 1, wherein said anti-slip subunit further comprises a standpipe and a pilot sleeve; the vertical pipe is vertically inserted and matched and is fixed in the cavity of the pile shoe body; a through passage for the flexible tension piece to freely pass through is arranged in the vertical pipe; the guide sleeve is also inserted, matched and fixed in the cavity of the pile shoe body and is butted with the lower end part of the vertical pipe; an accommodating cavity matched with the ground pin in shape is arranged in the guide sleeve; under the condition of abnormal pile pulling, the force bearing piece is broken due to the effect of the over-limit traction force from the flexible tension bearing piece, and the ground piercing pin is finally left in the seabed stratum due to the loss of the effect of the traction force.
3. The deep water self-elevating wind power installation platform pile shoe with good lateral slipping prevention performance according to any one of claims 1-2, wherein a conical barbed section is formed at the free end of the barbed pin, and the conicity of the barbed section is controlled to be 1:5-1:7.
4. The deep water self-elevating wind power installation platform pile shoe with good sideslip prevention performance according to claim 3, characterized in that an anti-wear coating completely covering the conical barbed section is added on the outer side wall of the barbed pin.
5. The deep water self-elevating wind power installation platform pile shoe with excellent sideslip prevention performance according to claim 4, characterized in that at least one inclined stabbing section is formed on the peripheral side wall of said stabbing pin above said conical stabbing section, and the inclination angle β thereof is controlled to be 30-45 °.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210534696.0A CN115045273B (en) | 2022-05-17 | 2022-05-17 | Deep water self-elevating wind power installation platform pile shoe with good sideslip prevention performance |
| PCT/CN2022/121243 WO2023221358A1 (en) | 2022-05-17 | 2022-09-26 | Deepwater jack-up wind generator installation platform pile shoe having good anti-sideslip performance |
| KR1020237011589A KR20230161412A (en) | 2022-05-17 | 2022-09-26 | Deep-sea self-rising wind power installation platform pile shoe with good lateral slip resistance performance |
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| CN202210534696.0A CN115045273B (en) | 2022-05-17 | 2022-05-17 | Deep water self-elevating wind power installation platform pile shoe with good sideslip prevention performance |
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| CN115045273A CN115045273A (en) | 2022-09-13 |
| CN115045273B true CN115045273B (en) | 2023-02-28 |
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| CN202210534696.0A Active CN115045273B (en) | 2022-05-17 | 2022-05-17 | Deep water self-elevating wind power installation platform pile shoe with good sideslip prevention performance |
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| Country | Link |
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| KR (1) | KR20230161412A (en) |
| CN (1) | CN115045273B (en) |
| WO (1) | WO2023221358A1 (en) |
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| CN115045273B (en) * | 2022-05-17 | 2023-02-28 | 江苏科技大学 | Deep water self-elevating wind power installation platform pile shoe with good sideslip prevention performance |
| CN115434313A (en) * | 2022-10-19 | 2022-12-06 | 江苏科技大学 | Pile shoe of self-elevating wind power installation platform and pile inserting and pulling method matched with pile shoe |
| CN116427400B (en) * | 2023-03-27 | 2023-09-15 | 巨杰科技发展集团股份有限公司 | Pile shoe of self-elevating wind power installation platform and construction method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207193934U (en) * | 2017-07-14 | 2018-04-06 | 招商局重工（江苏）有限公司 | A kind of jack-up unit octagon shoe |
| KR101877971B1 (en) * | 2018-02-05 | 2018-07-12 | 주식회사 마성건설 | Installation structure of earthquake resistant file with the moving function in all directions for building and the construction method thereof |
| CN112267460A (en) * | 2020-09-03 | 2021-01-26 | 中海油能源发展股份有限公司 | Active puncturing pile shoe structure of self-elevating drilling platform and operation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101384165B1 (en) * | 2012-05-02 | 2014-04-10 | 한국해양과학기술원 | A cap for protecting foundation scouring for offshore wind turbine |
| CN111042122B (en) * | 2019-12-24 | 2021-06-18 | 南通泰胜蓝岛海洋工程有限公司 | Pile leg shoe and pile pulling method of maritime work platform |
| US20230331356A1 (en) * | 2020-09-08 | 2023-10-19 | Horton Do Brasil Tecnologia Offshore, Ltda. | Offshore Shallow Water Platforms and Methods for Deploying Same |
| CN214005638U (en) * | 2020-12-04 | 2021-08-20 | 江苏海龙风电科技有限公司 | Platform lifting hydraulic bolt type pile leg |
| CN112942336A (en) * | 2021-04-20 | 2021-06-11 | 中海石油(中国)有限公司 | Modular apron board pile shoe of self-elevating drilling platform and drilling platform |
| CN115045273B (en) * | 2022-05-17 | 2023-02-28 | 江苏科技大学 | Deep water self-elevating wind power installation platform pile shoe with good sideslip prevention performance |
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- 2022-05-17 CN CN202210534696.0A patent/CN115045273B/en active Active
- 2022-09-26 KR KR1020237011589A patent/KR20230161412A/en unknown
- 2022-09-26 WO PCT/CN2022/121243 patent/WO2023221358A1/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207193934U (en) * | 2017-07-14 | 2018-04-06 | 招商局重工（江苏）有限公司 | A kind of jack-up unit octagon shoe |
| KR101877971B1 (en) * | 2018-02-05 | 2018-07-12 | 주식회사 마성건설 | Installation structure of earthquake resistant file with the moving function in all directions for building and the construction method thereof |
| CN112267460A (en) * | 2020-09-03 | 2021-01-26 | 中海油能源发展股份有限公司 | Active puncturing pile shoe structure of self-elevating drilling platform and operation method thereof |
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| Publication number | Publication date |
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| KR20230161412A (en) | 2023-11-27 |
| WO2023221358A1 (en) | 2023-11-23 |
| CN115045273A (en) | 2022-09-13 |
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