CN116290053A - Underwater double-layer split concrete caisson foundation structure - Google Patents
Underwater double-layer split concrete caisson foundation structure Download PDFInfo
- Publication number
- CN116290053A CN116290053A CN202310248649.4A CN202310248649A CN116290053A CN 116290053 A CN116290053 A CN 116290053A CN 202310248649 A CN202310248649 A CN 202310248649A CN 116290053 A CN116290053 A CN 116290053A
- Authority
- CN
- China
- Prior art keywords
- caisson
- bottom plate
- wall
- layer
- tower column
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- 230000000712 assembly Effects 0.000 claims abstract description 8
- 238000000429 assembly Methods 0.000 claims abstract description 8
- 238000010276 construction Methods 0.000 claims abstract description 8
- 238000005192 partition Methods 0.000 claims description 26
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
-
- 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
-
- 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
Abstract
The invention relates to an underwater double-layer split concrete caisson foundation structure, which comprises a lower layer caisson, an upper layer caisson and a tower column, wherein the bottom of the tower column penetrates through the center of the lower layer caisson and is fixed on a bottom plate of the lower layer caisson; the device further comprises two steel hoop bracket limiting assemblies which are detachably mounted on the tower column, and the two steel hoop bracket limiting assemblies are mounted at the upper end and the lower end of the upper caisson respectively. The double-layer split concrete caisson foundation structure can be prefabricated in a layered mode, the maximum weight of a single component is reduced, construction and hoisting are easy, and the offshore foundation installation structure which is easy to integrally install and float, convenient to transport and simple to construct is provided.
Description
Technical Field
The invention relates to the technical field of offshore wind power foundations, in particular to an underwater double-layer split concrete caisson foundation structure.
Background
The gravity type offshore wind power foundation is generally installed by adopting professional equipment such as a large floating crane and the like for installing the foundation and the wind turbine, and because the prefabrication, the transportation, the installation and the like of a concrete foundation structure are matched by large equipment and special processes, particularly in a good wind field, the wind waves are bigger all the year round, the operation window period is short, the construction is difficult, and the transportation and the construction cost is high. The whole floating transportation after the fan and the foundation are installed can shorten the offshore installation period, but the gravity center of the structure is too high, and the transportation process is easy to overturn.
Disclosure of Invention
The invention aims to solve the defects of the prior art, and provides an underwater double-layer split concrete caisson foundation structure, which is an offshore wind power foundation structure with integral installation, floating transportation, convenient transportation and simple construction.
The invention adopts the following technical scheme to realize the aim:
an underwater double-layer split concrete caisson foundation structure comprises a lower layer caisson, an upper layer caisson and a tower column, wherein the bottom of the tower column penetrates through the center of the lower layer caisson and is fixed on a bottom plate of the lower layer caisson;
the device further comprises two steel hoop bracket limiting assemblies which are detachably mounted on the tower column, and the two steel hoop bracket limiting assemblies are mounted at the upper end and the lower end of the upper caisson respectively.
The lower caisson is a box structure surrounded by a lower caisson bottom plate, a lower caisson top plate and a lower caisson outer wall, a lower caisson core wall is arranged between the lower caisson bottom plate and the middle part of the lower caisson top plate around a tower column, the lower end of the tower column, the lower caisson core wall and the lower caisson bottom plate are of an integrated structure, a plurality of lower caisson partition walls are arranged between the lower caisson bottom plate and the lower caisson top plate in the lower caisson outer wall and the lower caisson core wall, and the lower caisson partition walls divide the inner cavity of the lower caisson into a plurality of bins.
The upper caisson is a box structure surrounded by an upper caisson bottom plate, an upper caisson top plate and an upper caisson outer wall, an upper caisson core wall is arranged between the upper caisson bottom plate and the middle part of the upper caisson top plate around a tower column, the tower column slides and penetrates through the lower caisson core wall, a plurality of upper caisson partition walls are arranged between the upper caisson bottom plate and the upper caisson top plate in the upper caisson outer wall and the upper caisson core wall, and the upper caisson partition walls divide the inner cavity of the upper caisson into a plurality of bins.
Each steel anchor ear bracket limiting assembly comprises two semicircular steel anchor ear brackets which are arranged on the tower column in a embracing mode, connecting lug plates are arranged at two ends of each semicircular steel anchor ear bracket, and the connecting lug plates corresponding to the two semicircular steel anchor ear brackets are detachably connected through bolts.
The bottom plate of the lower caisson is of a circular structure, and the top plate of the lower caisson is of an annular structure.
The bottom plate of the upper caisson and the top plate of the upper caisson are all annular structures.
The diameter of the lower layer caisson and the upper layer caisson is 34m, and the height is 6m.
The thickness of the lower caisson partition wall and the upper caisson partition wall is 30cm, the distance between the adjacent lower caisson partition walls is not more than 5m, and the distance between the adjacent upper caisson partition walls is not more than 5m.
The thickness of the bottom plate of the lower caisson, the top plate of the lower caisson, the outer wall of the lower caisson, the bottom plate of the upper caisson, the top plate of the upper caisson and the outer wall of the upper caisson is 60cm.
The tower column is of a steel pipe type structure, the outer diameter is 6m, the wall thickness is 4cm, and longitudinal rib plates and transverse rib plates are arranged between the inner walls of the tower column.
The beneficial effects of the invention are as follows: the double-layer split concrete caisson foundation structure can be prefabricated in a layered mode, the maximum weight of a single component is reduced, construction and hoisting are easy, and the offshore foundation installation structure which is easy to integrally install and float, convenient to transport and simple to construct is provided.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view of A-A of FIG. 1;
FIG. 3 is an enlarged view of B in FIG. 1;
FIG. 4 is a schematic illustration of the present invention after assembly;
in the figure: 1-a lower caisson; 2-an upper caisson; 3-tower column; 4-steel hoop bracket limiting components; 5-rubble leveling bed; 6-a fan;
11-a bottom plate of the lower caisson; 12-a lower caisson top plate; 13-the outer wall of the lower caisson; 14-a lower caisson core wall; 15-lower caisson partition walls;
21-an upper caisson bottom plate; 22-upper caisson roof; 23-an upper caisson outer wall; 24-upper caisson core wall; 25-upper caisson partition walls;
41-semicircular steel corbel hoops; 42-connecting an ear plate; 43-bolts;
the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention. The invention is more particularly described by way of example in the following paragraphs with reference to the drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
the utility model provides an under water bilayer components of a whole that can function independently concrete caisson foundation structure, as shown in fig. 1 through 4, including lower floor's caisson 1, upper caisson 2 and column 3, lower floor's caisson 1, upper caisson 2 are double-deck concrete caisson foundation structure, and upper caisson 2 is the slip caisson, can follow column 3 as required and slide, and column 3 passes through steel built-in fitting and fixes on lower floor's caisson 1.
The lower caisson 1 is used for increasing buoyancy and reducing the gravity center height of the whole structure by adjusting the draft during floating transportation.
The upper caisson 2 can slide along the tower column 3, and is used for increasing the buoyancy of the whole structure and increasing the height of the floating center during floating transportation. In order to ensure that the upper caisson 2 is fixed after the position is adjusted during floating, two steel hoop bracket limiting assemblies 4 are arranged on the tower column 3, and the two steel hoop bracket limiting assemblies 4 are respectively arranged at the upper end and the lower end of the upper caisson 2. Each steel anchor ear bracket limiting assembly 4 comprises two semicircular steel anchor ear brackets 41 which are embraced on the tower column 3, connecting lug plates 42 are arranged at two ends of each semicircular steel anchor ear bracket 41, and the connecting lug plates 42 corresponding to the two semicircular steel anchor ear brackets 41 are detachably connected through bolts 43. Therefore, after the upper caisson 2 is adjusted in place, the upper end and the lower end of the upper caisson can be limited and fixed through the semicircular steel corbel hoops 41, and the upper caisson can be detached again when being installed.
The top of the tower column 3 is used for installing a fan 6 and other components.
During installation, the lower caisson 1 is installed on the broken stone leveling foundation bed 5 after being in place, the steel hoop bracket limiting assembly 4 is removed, and the upper caisson 2 is placed on the upper portion of the lower caisson 1 in a water injection sinking mode.
The lower caisson 1 is a box structure surrounded by a lower caisson bottom plate 11, a lower caisson top plate 12 and a lower caisson outer wall 13, a lower caisson core wall 14 is arranged between the middle parts of the lower caisson bottom plate 11 and the lower caisson top plate 12 around a tower column 3, the lower end of the tower column 3, the lower caisson core wall 14 and the lower caisson bottom plate 11 are of an integrated structure, a plurality of lower caisson partition walls 15 are arranged between the lower caisson bottom plate 11 and the lower caisson top plate 12 in the lower caisson outer wall 13 and the lower caisson core wall 14, and the lower caisson partition walls 15 divide the inner cavity of the lower caisson 1 into a plurality of bins.
The upper caisson 2 is a box structure surrounded by an upper caisson bottom plate 21, an upper caisson top plate 22 and an upper caisson outer wall 23, an upper caisson core wall 24 is arranged between the middle parts of the upper caisson bottom plate 21 and the upper caisson top plate 22 around a tower column 3, the tower column 3 is slidably arranged inside a lower caisson core wall 24 in a penetrating manner, a plurality of upper caisson partition walls 25 are arranged between the upper caisson bottom plate 21 and the upper caisson top plate 22 inside the upper caisson outer wall 23 and the upper caisson core wall 24, and the inner cavity of the upper caisson 2 is divided into a plurality of bins by the upper caisson partition walls 25.
The lower caisson bottom plate 11 is of a circular structure, and the lower caisson top plate 12 is of an annular structure.
The upper caisson bottom plate 21 and the upper caisson top plate 22 are all of annular structures.
The diameter of the lower caisson 1 and the upper caisson 2 is 34m, and the height is 6m.
The thickness of the lower caisson partition wall 15 and the upper caisson partition wall 25 is 30cm, the distance between the adjacent lower caisson partition walls 15 is not more than 5m, and the distance between the adjacent upper caisson partition walls 25 is not more than 5m.
The thickness of the lower caisson bottom plate 11, the lower caisson top plate 12, the lower caisson outer wall 13, the upper caisson bottom plate 21, the upper caisson top plate 22 and the upper caisson outer wall 23 is 60cm.
The tower column 3 is of a steel pipe type structure, the outer diameter is 6m, the wall thickness is 4cm, and longitudinal rib plates and transverse rib plates are arranged between the inner walls of the tower column 3.
The fan 6 is integrally floating after being fixed with the foundation structure of the double-layer split concrete caisson through the tower column 3, and floating stability is guaranteed through adjusting the floating center height of the integral structure by adjusting the position of the sliding upper caisson 2.
The double-layer split concrete caisson foundation structure can be prefabricated in a layered mode, the maximum weight of a single component is reduced, construction and hoisting are easy, a solution which is easy to integrally install and float, convenient to transport and simple to construct is provided, feasibility and economical efficiency of the solution are particularly outstanding particularly under the condition that transportation and construction conditions are severe, and the structure has very good practical value and can be used for various offshore gravity type structure platform foundations, offshore wind power foundations and the like.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the invention is not limited to the above embodiments, but is intended to cover various modifications, either made by the method concepts and technical solutions of the invention, or applied directly to other applications without modification, within the scope of the invention.
Claims (10)
1. The underwater double-layer split concrete caisson foundation structure is characterized by comprising a lower layer caisson (1), an upper layer caisson (2) and a tower column (3), wherein the bottom of the tower column (3) penetrates through the center of the lower layer caisson (1) and is fixed on the bottom plate of the lower layer caisson (1), and the middle part of the upper layer caisson (2) is arranged on the tower column (3) in a penetrating manner;
the device further comprises two steel anchor ear bracket limiting assemblies (4) which are detachably mounted on the tower column (3), and the two steel anchor ear bracket limiting assemblies (4) are respectively mounted at the upper end and the lower end of the upper caisson (2).
2. The underwater double-layer split concrete caisson foundation structure according to claim 1, wherein the lower caisson (1) is a box structure surrounded by a lower caisson bottom plate (11), a lower caisson top plate (12) and a lower caisson outer wall (13), a lower caisson core wall (14) is arranged around a tower column (3) between the lower caisson bottom plate (11) and the middle part of the lower caisson top plate (12), the lower end of the tower column (3) is integrated with the lower caisson core wall (14) and the lower caisson bottom plate (11), a plurality of lower caisson partition walls (15) are arranged between the lower caisson bottom plate (11) and the lower caisson top plate (12) and inside the lower caisson outer wall (13), and the lower caisson partition walls (15) divide the inner cavity of the lower caisson (1) into a plurality of bins.
3. An underwater double-layer split concrete caisson foundation structure as claimed in claim 2, characterized in that the upper caisson (2) is a box structure surrounded by an upper caisson bottom plate (21), an upper caisson top plate (22) and an upper caisson outer wall (23), an upper caisson core wall (24) is arranged around the tower column (3) between the middle parts of the upper caisson bottom plate (21) and the upper caisson top plate (22), the tower column (3) is slidably arranged inside the lower caisson core wall (24), a plurality of upper caisson partition walls (25) are arranged inside the upper caisson outer wall (23) and the upper caisson core wall (24) between the upper caisson bottom plate (21) and the upper caisson top plate (22), and the upper caisson partition walls (25) divide the inner cavity of the upper caisson (2) into a plurality of bins.
4. An underwater double-layer split concrete caisson foundation structure according to claim 3, characterized in that each steel staple bolt bracket limiting assembly (4) comprises two semicircular steel staple bolts (41) which are arranged on the tower column (3) in a embracing mode, connecting lug plates (42) are arranged at two ends of each semicircular steel staple bolt (41), and the connecting lug plates (42) corresponding to the two semicircular steel staple bolts (41) are detachably connected through bolts (43).
5. An underwater double-layer split concrete caisson foundation structure according to claim 4, characterized in that the lower caisson bottom plate (11) is of circular structure and the lower caisson top plate (12) is of annular structure.
6. An underwater double-layer split concrete caisson foundation structure according to claim 5, characterized in that the upper caisson bottom plate (21) and the upper caisson top plate (22) are of annular structure.
7. An underwater double-layer split concrete caisson foundation Structure according to claim 6, characterized in that the diameter of the lower caisson (1) and the upper caisson (2) is 34m and the height is 6m.
8. An underwater double-layered split concrete caisson foundation structure according to claim 7, characterized in that the thickness of the lower caisson partition walls (15) and the upper caisson partition walls (25) is 30cm, the distance between adjacent lower caisson partition walls (15) is not more than 5m, and the distance between adjacent upper caisson partition walls (25) is not more than 5m.
9. An underwater double-layered split concrete caisson foundation construction according to claim 8, characterized in that the thickness of the lower caisson bottom plate (11), lower caisson top plate (12), lower caisson outer wall (13), upper caisson bottom plate (21), upper caisson top plate (22) and upper caisson outer wall (23) is 60cm.
10. An underwater double-layer split concrete caisson foundation structure according to claim 9, characterized in that the tower (3) is of a steel pipe type structure, the outer diameter is 6m, the wall thickness is 4cm, and longitudinal rib plates and transverse rib plates are arranged between the inner walls of the tower (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310248649.4A CN116290053A (en) | 2023-03-15 | 2023-03-15 | Underwater double-layer split concrete caisson foundation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310248649.4A CN116290053A (en) | 2023-03-15 | 2023-03-15 | Underwater double-layer split concrete caisson foundation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116290053A true CN116290053A (en) | 2023-06-23 |
Family
ID=86797370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310248649.4A Pending CN116290053A (en) | 2023-03-15 | 2023-03-15 | Underwater double-layer split concrete caisson foundation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116290053A (en) |
-
2023
- 2023-03-15 CN CN202310248649.4A patent/CN116290053A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4708365B2 (en) | Wind turbine tower, prefabricated metal wall parts for use in wind turbine tower, and method for constructing wind turbine tower | |
| JP5274329B2 (en) | Offshore wind power generation facility and its construction method | |
| US8696246B2 (en) | Supporting element for an offshore wind turbine, production method thereof and method for installing same | |
| JP6163492B2 (en) | Installation method of offshore tower | |
| JP5330048B2 (en) | Installation method of offshore wind power generation equipment | |
| US10822760B2 (en) | Maritime structure for laying the foundations of buildings, installations and wind turbines by means of gravity in a marine environment | |
| JP2010223114A5 (en) | ||
| JP2014515446A (en) | Floating wind power generation facility with energy storage equipment | |
| EP2103743A1 (en) | Foundation for a wind turbine | |
| CN102720207A (en) | Tower foundation and tower of wind-driven generator | |
| CN113306671A (en) | Floating type offshore wind turbine system | |
| CN110158638A (en) | Offshore wind farm composite tube foundation construction structure and construction method | |
| JP5738643B2 (en) | Installation method of offshore wind power generation equipment | |
| CN116290053A (en) | Underwater double-layer split concrete caisson foundation structure | |
| CN106638661A (en) | Four-cylindrical-foundation combined foundation structure system of concrete support structure | |
| CN213625676U (en) | Combined anti-scour beach fan foundation | |
| CN215594101U (en) | Truss combined type steel-concrete cylindrical wind power foundation | |
| JP5738642B2 (en) | Installation method of offshore wind power generation equipment | |
| CN113799937A (en) | Floating foundation for offshore wind turbine generator and manufacturing method thereof | |
| JP6937627B2 (en) | Offshore wind power generation equipment and its construction method | |
| CN113513005B (en) | Offshore floating island | |
| CN216839533U (en) | Prefabricated cushion cap | |
| CN116356872A (en) | Double-deck honeycomb caisson foundation pier structure of whole installation on water | |
| CN211735327U (en) | Offshore booster station structure capable of being integrally built and installed | |
| CN216185898U (en) | Floating foundation for offshore wind turbine generator system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |