Ultra-large type offshore wind power single pile foundation

Abstract

The utility model discloses an ultra-large type offshore wind power single pile foundation which comprises a pile body, an outer platform structure, a first ladder stand structure and a second ladder stand structure, the outer platform structure is arranged on the outer side of the upper end of the pile body, and the first ladder stand structure and the second ladder stand structure are arranged on the two sides of the pile body. The first crawling ladder structure and the second crawling ladder structure respectively comprise an upper crawling ladder, an upper crawling ladder protection cage, a lower crawling ladder, a berthing component and a rest platform, the lower crawling ladder is fixed at the lower end of the outer side of the pile body, the upper crawling ladder is fixed at the upper end of the outer side of the pile body, the lower end of the upper crawling ladder is connected with but not contacted with the upper end of the lower crawling ladder, and the upper crawling ladder protection cage is fixed at the outer side of the upper crawling ladder; the berthing component is fixed outside the lower ladder, and the rest platform is located at the joint of the lower end of the upper ladder and the upper end of the lower ladder and fixed to the upper end of the lower ladder. The structure is convenient and simple to construct, high in construction efficiency and capable of avoiding deformation.

Description

TECHNICAL FIELD

[0001] The utility model relates to a single pile foundation, in particular to a super large offshore wind power single pile foundation, belongs to offshore wind power technical field. BACKGROUND

[0002] The offshore wind power single pile foundation is an important component of offshore wind power. The traditional offshore wind power single pile foundation mainly adopts a ring-shaped ladder structure. Since the installation environment of the offshore wind power single pile is mainly located in the shallow sea area, the environment is humid and the wind and wave are large, which is not conducive to on-site welding construction. Therefore, the single pile body, the outer platform and the ring-shaped ladder are currently welded in the factory, and then the outer platform and the ring-shaped ladder are hoisted on the single pile body. The outer platform and the ring-shaped ladder are usually fixed with bolts and other structures and the connecting seat welded on the single pile body in advance. With the capacity improvement of the current offshore wind power project, the weight of the latest super large offshore wind power single pile reaches more than 3000 tons. If the traditional structure is still used, deformation may occur during transportation, which may cause the installation to be completed smoothly on site. Moreover, the ring-shaped ladder needs to be completely lifted and installed on the outside of the single pile body. Under the condition that the ring-shaped ladder is very heavy, the construction difficulty is very large and deformation may occur due to collision. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a super large offshore wind power single pile foundation which is convenient to install and construct and is not easy to deform during transportation.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] A super large offshore wind power single pile foundation, comprising a pile body, an outer platform structure, a first ladder structure and a second ladder structure, the outer platform structure is arranged on the outer side of the upper end of the pile body, the first ladder structure and the second ladder structure are arranged on both sides of the pile body, the first ladder structure and the second ladder structure respectively comprise an upper ladder, an upper ladder cage, a lower ladder, a berthing component and a rest platform, the lower ladder is fixed on the outer side of the lower end of the pile body, the upper ladder is fixed on the outer side of the upper end of the pile body, and the lower end of the upper ladder is connected with the upper end of the lower ladder without contact, the upper ladder cage is fixed on the outer side of the upper ladder, the berthing component is fixed on the outer side of the lower ladder, and the rest platform is located at the connection between the lower end of the upper ladder and the upper end of the lower ladder and is fixed on the upper end of the lower ladder.

[0006] Further, one side of the inner side surface of the lower ladder is provided with a first connecting piece group, the other side of the inner side surface of the lower ladder is provided with a second connecting piece group, the first connecting piece group and the second connecting piece group respectively comprise a first latch, a second latch and a first flange arranged in sequence from bottom to top, the pile body is provided with a first sleeve matched with the first latch, the pile body is provided with a second sleeve matched with the second latch, and the pile body is provided with a second flange matched with the first flange.

[0007] Further, the length of the first latch in the first connecting piece group is greater than the length of the first latch in the second connecting piece group, and the length of the second latch in the first connecting piece group is greater than the length of the second latch in the second connecting piece group.

[0008] Further, one side of the inner side surface of the lower ladder is provided with a first connecting piece group, the other side of the inner side surface of the lower ladder is provided with a second connecting piece group, the first connecting piece group and the second connecting piece group respectively comprise a first latch, a second latch and a first flange arranged in sequence from bottom to top, the pile body is provided with a first sleeve matched with the first latch, the pile body is provided with a second sleeve matched with the second latch, and the pile body is provided with a second flange matched with the first flange.

[0009] Further, the length of the first latch in the first connecting piece group is greater than the length of the first latch in the second connecting piece group, and the length of the second latch in the first connecting piece group is greater than the length of the second latch in the second connecting piece group.

[0010] Further, the lower end of the berthing member is provided with a reference electrode and an auxiliary anode, the vertical structure on one side of the berthing member is provided with a vertical wire laying hole, the side surface of the upper ladder is provided with a wire laying pipe, and the cable of the reference electrode and the auxiliary anode is led upward along the wire laying hole of the berthing member to the wire laying pipe of the upper ladder, and then connected to the power supply device of the outer platform structure from the upper end of the wire laying pipe.

[0011] Further, the outer platform structure comprises an outer platform structure body, an outer platform ring beam, an outer platform handrail and a plurality of outer platform diagonal braces, the outer platform ring beam is fixed to the inner side of the outer platform structure body, the outer platform handrail is vertically fixed to the outer side edge of the outer platform structure body, the outer side of the upper end of the pile body is provided with a diagonal brace support corresponding to the plurality of outer platform diagonal braces, the outer platform diagonal brace is inclined, the upper end of the outer platform diagonal brace is fixedly connected to the lower side of the outer platform structure body, the lower end of the outer platform diagonal brace is detachably fixed on the diagonal brace support, and the plurality of outer platform diagonal braces are distributed at equal intervals along the circumferential direction of the pile body.

[0012] Further, the outer platform structure body is provided with an outer platform entrance corresponding to the upper end of the first ladder structure and the second ladder structure, and the outer platform entrance is provided with an outer platform ladder at the upper end, and the lower end of the outer platform ladder is connected to the upper end of the upper ladder without contact.

[0013] Further, the outer platform ring beam is composed of a plurality of arc-shaped beams connected end to end, and the end portions of the two adjacent arc-shaped beams are fixedly connected by connecting pieces.

[0014] Compared with the prior art, the utility model has the following advantages and effects: the utility model provides a super - large offshore wind power single pile foundation, the ladder adopts two side straight ladder structure, and installs in the upper and lower section, the weight of single ladder structure greatly reduces, the ladder and the pile body adopt the structure of the latch and the flange cooperation to install, and the two side latches are long and short, when hoisting, first only align the long latch, then take the long latch of partial insertion sleeve as the fulcrum to rotate and complete the positioning of the short latch, finally the two side latches of the ladder are completely inserted into the sleeve, and are locked and fixed through the flange structure, complete installation, the whole hoisting process is convenient, simple, need not be like annular around ladder to be accurately set in the outside of the pile body in hoisting, the construction efficiency is greatly improved, and is not easy to collide with the pile body, avoids the deformation of collision, the ladder adopts straight ladder structure, convenient transportation, and deformation is not easy to occur. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of a super - large offshore wind power single pile foundation of the utility model.

[0016] Figure 2 It is a schematic diagram of the first ladder structure and the second ladder structure of the utility model.

[0017] Figure 3 It is a schematic diagram of the outer platform structure of the utility model. DETAILED DESCRIPTION

[0018] In order to describe the utility model in detail to achieve the predetermined technical purpose and the technical scheme adopted, the technical scheme in the embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment of the utility model, obviously, the described embodiment is only part of the utility model, rather than all the embodiments, and the technical means or technical features in the embodiment of the utility model can be replaced without creative labor, the utility model will be described in detail below with reference to the drawings and in combination with the embodiment.

[0019] As Figure 1 The utility model discloses a super - large offshore wind power single pile foundation, contains the pile body 1, the outer platform structure 2, the first ladder structure 3 and the second ladder structure 4, the outer platform structure 2 sets up on the pile body 1 upper end outside, and the first ladder structure 3 and the second ladder structure 4 set up on the both sides of the pile body 1.

[0020] As Figure 2As shown, the first ladder structure 3 and the second ladder structure 4 respectively comprise an upper ladder 5, an upper ladder cage 6, a lower ladder 7, a berthing component 8 and a rest platform 9, the lower ladder 7 is fixed at the lower end of the outer side of the pile body 1, the upper ladder 5 is fixed at the upper end of the outer side of the pile body 1, and the lower end of the upper ladder 5 is connected with the upper end of the lower ladder 7 without contact, the upper ladder cage 6 is fixed at the outer side of the upper ladder 5, the berthing component 8 is fixed at the outer side of the lower ladder 7, the rest platform 9 is located at the connection between the lower end of the upper ladder 5 and the upper end of the lower ladder 7, and the rest platform 9 is fixed at the upper end of the lower ladder 7. During installation, the lower ladder 7 is partially in seawater, and the maintenance personnel can choose the first ladder structure 3 or the second ladder structure 4 as the berthing position according to the direction of the sea waves, and the berthing component 8 protects the lower ladder 7 by using two vertical thickened tubular structural members. The upper ladder cage 6 protects the climbing personnel of the upper ladder 5, and the rest platform 9 provides a place for the personnel to pause and rest.

[0021] A first connecting component group is arranged on one side of the inner side of the lower ladder 7, and a second connecting component group is arranged on the other side of the inner side of the lower ladder 7, the first connecting component group and the second connecting component group respectively comprise a first latch 10, a second latch 11 and a first flange 12 arranged from bottom to top in sequence, the pile body 1 is provided with a first sleeve 13 matched with the first latch 10, the pile body 1 is provided with a second sleeve 14 matched with the second latch 11, and the pile body 1 is provided with a second flange 15 matched with the first flange 12.

[0022] The length of the first latch 10 in the first connecting component group is greater than the length of the first latch 10 in the second connecting component group, and the length of the second latch 11 in the first connecting component group is greater than the length of the second latch 11 in the second connecting component group. During installation, the lower ladder 7 is vertically hoisted by hoisting equipment, then the first latch 10 and the second latch 11 in the first connecting component group are aligned with the first sleeve 13 and the second sleeve 14 on the pile body 1, then the first latch 10 and the second latch 11 in the first connecting component group are partially inserted into the first sleeve 13 and the second sleeve 14, at this time, the lower ladder 7 is rotated around the first latch 10 and the second latch 11 in the first connecting component group as the rotation axis until the first latch 10 and the second latch 11 in the second connecting component group are aligned with the first sleeve 13 and the second sleeve 14 on the pile body 1, then the lower ladder 7 is continuously lowered until the first latch 10 and the second latch 11 in the first connecting component group and the second connecting component group are completely inserted into the first sleeve 13 and the second sleeve 14, and the installation of the lower ladder 7 is completed by locking and fixing the first flange 12 and the second flange 15 by bolts.

[0023] A third connecting piece group is arranged on one side of the inner side surface of the upper ladder 5, and a fourth connecting piece group is arranged on the other side of the inner side surface of the upper ladder 5. The third connecting piece group and the fourth connecting piece group respectively comprise a third flange 16 and a third bolt 17 arranged in sequence from bottom to top. The pile body 1 is provided with a fourth flange 18 matched with the third flange 16 and a third sleeve 19 matched with the third bolt 17.

[0024] The length of the third bolt 17 in the third connecting piece group is greater than the length of the third bolt 17 in the fourth connecting piece group. During installation, the upper ladder 5 is vertically hoisted by hoisting equipment, then the third bolt 17 in the third connecting piece group is aligned with the third sleeve 19 on the pile body 1, then the third bolt 17 in the third connecting piece group is partially inserted into the third sleeve 19, at this time, the upper ladder 5 is rotated around the third bolt 17 in the third connecting piece group as the rotation axis until the third bolt 17 in the fourth connecting piece group is aligned with the third sleeve 19 on the pile body 1, then the upper ladder 7 is further lowered until the third bolts 17 in the third connecting piece group and the fourth connecting piece group are completely inserted into the third sleeve 19, and the installation of the upper ladder 5 is completed by locking and fixing the third flange 16 and the fourth flange 18 by bolts.

[0025] The lower end of the berthing member 8 is provided with a reference electrode 20 and an auxiliary anode 21. The vertical structural member on one side of the berthing member 8 is provided with a wire laying hole opened in the vertical direction. The side surface of the upper ladder 5 is provided with a wire laying pipe 22. The cables of the reference electrode 20 and the auxiliary anode 21 pass through the wire laying hole of the berthing member 8 upwards to the wire laying pipe 22 of the upper ladder 5, and then are connected to the power supply equipment of the outer platform structure 2 from the upper end of the wire laying pipe 22.

[0026] As shown in Figure 3 The outer platform structure 2 comprises an outer platform structure body 23, an outer platform ring beam 24, an outer platform handrail 25 and a plurality of outer platform diagonal braces 26. The outer platform ring beam 24 is fixed to the inner side of the outer platform structure body 23. The outer platform handrail 25 is vertically fixed to the outer side edge of the outer platform structure body 23. The outer side of the upper end of the pile body 1 is provided with a diagonal brace support 27 corresponding to each of the plurality of outer platform diagonal braces 26. The outer platform diagonal braces 26 are obliquely arranged. The upper end of the outer platform diagonal braces 26 is fixedly connected to the lower side of the outer platform structure body 23. The lower end of the outer platform diagonal braces 26 is detachably fixed to the diagonal brace support 27. The plurality of outer platform diagonal braces 26 are distributed at equal intervals along the circumferential direction of the pile body 1.

[0027] The outer platform structure body 23 is provided with an outer platform entrance corresponding to the upper end of the first ladder structure 3 and the second ladder structure 4. The outer platform entrance is provided with an outer platform ladder 27 at the upper end. The lower end of the outer platform ladder 27 is connected to the upper end of the upper ladder 5 without contact.

[0028] The outer platform ring beam 24 is composed of several arc beams connected at their ends, and the ends of two adjacent arc beams are fixedly connected by connecting pieces.

[0029] The utility model provides a kind of super large offshore wind power single pile foundation, ladder stand adopts two sides straight ladder structure, and is installed in upper and lower segments, the weight of single ladder stand structure is greatly reduced, ladder stand and pile body are installed using the structure of latch and flange cooperation, and two side latches are long and short, when hoisting, just align long latch a little first, then with long latch partially inserted into sleeve as fulcrum rotation to complete the positioning of short latch, finally the two side latches of ladder stand are completely inserted into sleeve, and are locked and fixed by flange structure, complete installation, whole hoisting process is convenient, simple, need not like annular around ladder to be accurately set in the outside of pile body in hoisting, construction efficiency is greatly improved, and it is not easy to collide with pile body, avoid collision deformation;Ladder stand adopts straight ladder structure, convenient to transport, also not easy to deformation.

[0030] The above is only the preferred embodiment of the utility model, and does not limit the utility model in any form, although the utility model has disclosed the above preferred embodiment, but it is not used to limit the utility model, any skilled person in the art can make slight changes or modifications to the equivalent embodiments within the scope of the technical scheme of the utility model by using the disclosed technical content, as long as it does not deviate from the technical scheme of the utility model, according to the technical essence of the utility model, within the spirit and principles of the utility model, any simple modification, equivalent replacement and improvement of the above embodiment, etc.

Claims

1. An ultra-large offshore wind power monopile foundation, characterized by: It includes a pile body, an outer platform structure, a first ladder structure and a second ladder structure, the outer platform structure is arranged on the outside of the upper end of the pile body, the first ladder structure and the second ladder structure are arranged on both sides of the pile body, the first ladder structure and the second ladder structure respectively include an upper ladder, an upper ladder guard cage, a lower ladder, a berthing component and a rest platform, the lower ladder is fixed to the lower end of the outer side of the pile body, the upper ladder is fixed to the upper end of the outer side of the pile body and the lower end of the upper ladder is connected to the upper end of the lower ladder but not in contact, the upper ladder guard cage is fixed to the outside of the upper ladder, the berthing component is fixed to the outside of the lower ladder, the rest platform is located at the connection between the lower end of the upper ladder and the upper end of the lower ladder and the rest platform is fixed to the upper end of the lower ladder.

2. The ultra-large offshore wind power monopile foundation according to claim 1, characterized in that: A first connecting member group is provided on one side of the inner side surface of the lower ladder, and a second connecting member group is provided on the other side of the inner side surface of the lower ladder. The first connecting member group and the second connecting member group respectively include a first latch, a second latch and a first flange which are arranged in sequence from bottom to top. A first sleeve matching the first latch is provided on the pile body, a second sleeve matching the second latch is provided on the pile body, and a second flange matching the first flange is provided on the pile body.

3. The ultra-large offshore wind power monopile foundation according to claim 2, characterized in that: The length of the first latch in the first connector group is greater than the length of the first latch in the second connector group, and the length of the second latch in the first connector group is greater than the length of the second latch in the second connector group.

4. The ultra-large offshore wind power monopile foundation according to claim 1, characterized in that: A third connecting member group is provided on one side of the inner side surface of the upper ladder, and a fourth connecting member group is provided on the other side of the inner side surface of the upper ladder. The third connecting member group and the fourth connecting member group respectively include a third flange and a third latch arranged in sequence from bottom to top. The pile body is provided with a fourth flange matching the third flange, and the pile body is provided with a third sleeve matching the third latch.

5. The ultra-large offshore wind power monopile foundation according to claim 4, characterized in that: The length of the third latch in the third connector group is greater than the length of the third latch in the fourth connector group.

6. The ultra-large offshore wind power monopile foundation according to claim 1, characterized in that: A reference electrode and an auxiliary anode are provided at the lower end of the mooring component. A wire laying hole opened in the vertical direction is opened in the vertical structural member on one side of the mooring component. A wire laying pipe is provided on the side of the upper ladder. The cables of the reference electrode and the auxiliary anode are passed upward along the wire laying hole of the mooring component to the wire laying pipe of the upper ladder, and then connected to the power supply equipment of the outer platform structure from the upper end of the wire laying pipe.

7. The ultra-large offshore wind power monopile foundation according to claim 1, characterized in that: The outer platform structure includes an outer platform structure body, an outer platform ring beam, an outer platform handrail and several outer platform diagonal braces. The outer platform ring beam is fixed on the inner side of the outer platform structure body. The outer platform handrail is vertically fixed on the outer edge of the outer platform structure body. A diagonal brace support corresponding to several outer platform diagonal braces is provided on the outer side of the upper end of the pile body. The outer platform diagonal brace is inclined. The upper end of the outer platform diagonal brace is fixedly connected to the lower side of the outer platform structure body. The lower end of the outer platform diagonal brace is detachably fixed on the diagonal brace support. Several outer platform diagonal braces are distributed at equal intervals along the circumferential direction of the pile body.

8. The ultra-large offshore wind power monopile foundation according to claim 7, characterized in that: An outer platform entrance is provided on the outer platform structure body corresponding to the upper ends of the first ladder structure and the second ladder structure, an outer platform ladder is provided on the upper end of the outer platform entrance, and the lower end of the outer platform ladder is connected to the upper end of the upper ladder but does not touch.

9. The ultra-large offshore wind power monopile foundation according to claim 7, characterized in that: The outer platform ring beam is composed of a plurality of arc-shaped beams connected end to end, and the ends of two adjacent arc-shaped beams are fixedly connected by connecting pieces.

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