CN113373967A - Fan installation construction method based on portal frame type multi-pile fan foundation - Google Patents
Fan installation construction method based on portal frame type multi-pile fan foundation Download PDFInfo
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- CN113373967A CN113373967A CN202110648539.8A CN202110648539A CN113373967A CN 113373967 A CN113373967 A CN 113373967A CN 202110648539 A CN202110648539 A CN 202110648539A CN 113373967 A CN113373967 A CN 113373967A
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- 238000010276 construction Methods 0.000 title claims abstract description 27
- 238000009434 installation Methods 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 170
- 239000010959 steel Substances 0.000 claims abstract description 170
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000010802 sludge Substances 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
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
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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
- E02D27/44—Foundations for machines, engines or ordnance
-
- 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
-
- 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
-
- 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
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/28—Prefabricated piles made of steel or other metals
-
- 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
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/28—Prefabricated piles made of steel or other metals
- E02D5/285—Prefabricated piles made of steel or other metals tubular, e.g. prefabricated from sheet pile elements
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Foundations (AREA)
Abstract
The invention discloses a fan installation construction method based on a portal frame type multi-pile fan foundation, which comprises the following steps: s1, sinking a plurality of steel pipe piles, and sinking the steel pipe piles to the designed elevation position by adopting a pile driving hammer; s2, lifting and lowering the steel portal frame, and inserting the bottom ends of the outer extending legs of the steel portal frame into the inner side of the middle top of the steel pipe pile in a one-to-one correspondence mode respectively; s3, connecting and fixing the steel pipe pile flange and the steel portal overhanging leg flange, and grouting; s4, finishing integral installation of the fan on the steel portal bearing platform; the fan installation and construction method based on the portal frame type multi-pile fan foundation realizes that the large-capacity fan unit is installed on water in a deeper sea area based on the portal frame type multi-pile fan foundation, is convenient to construct, does not need underwater pile driving and grouting, is convenient to hoist and transport, has high integral rigidity and definite and stable stress, and can meet the construction requirement even if a small single-pile diameter is used in the process of large installed capacity.
Description
Technical Field
The invention relates to the technical field of a portal type multi-pile fan foundation, in particular to a fan installation construction method based on a portal type multi-pile fan foundation.
Background
With the large-scale development of offshore wind power projects in offshore shallow water areas and intertidal areas in China, the number of wind power resources which can be developed and utilized in offshore areas is gradually reduced, offshore wind power is inevitably developed to deep sea and open sea, and the water depth can reach 40-60 m. Therefore, at present, a novel wind power foundation which is suitable for a deep water area and a large-capacity fan, has high overall rigidity and is simple and convenient to construct and a construction process thereof are urgently needed to be developed.
Disclosure of Invention
The invention aims to provide a fan installation construction method based on a portal frame type multi-pile fan foundation, which is suitable for deep water areas and high-capacity fans.
Therefore, the technical scheme of the invention is as follows:
a fan installation construction method based on a portal frame type multi-pile fan foundation comprises the following steps that the portal frame type multi-pile fan foundation comprises a plurality of steel pipe piles and a steel portal frame; the steel portal comprises a steel portal support body and a steel portal bearing platform which is fixed at the center of the top surface of the steel portal support body in a horizontal state; the steel portal support comprises a plurality of steel portal box girders and a plurality of steel portal extending legs; a plurality of steel portal box girders are uniformly distributed in a radial shape along the circumferential direction, and the inner ends of the steel portal box girders are connected and fixed into a whole; the horizontal plane of the inner side end of each steel portal box girder is slightly higher than the horizontal plane of the outer side end of each steel portal box girder; the plurality of steel portal frame outer extending legs are vertically arranged and the number of the steel portal frame outer extending legs is the same as that of the steel portal frame box girders, so that the top ends of the steel portal frame outer extending legs are respectively and correspondingly connected and fixed at the outer side end of each steel portal frame box girder; the outer wall of the middle part of each steel portal frame outer extending leg is sleeved and fixed with a steel portal frame outer extending leg flange; the inner diameter and the number of the steel pipe piles are respectively adapted to the outer diameter and the number of the steel portal frame outer extending legs, so that the bottom ends of the steel portal frame outer extending legs can be respectively and correspondingly inserted and fixed on the inner sides of the top ends of the steel pipe piles one by one; a steel pipe pile flange is sleeved and fixed on the outer wall of the top end of each steel pipe pile;
the specific construction steps of the fan installation construction method are as follows:
s1, the crane ship, the pile gripper or the limiting frame are located, a plurality of steel pipe piles are inserted into the pile gripper or the limiting frame, and after the steel pipe piles sink into the mud stably, the steel pipe piles are sunk to the designed elevation position by adopting a pile driving hammer;
s2, moving away the pile gripper or the limiting frame, lifting the steel portal frame by the crane ship to the position above the steel pipe piles and gradually lowering the steel portal frame, so that the bottom ends of the outer extending legs of the steel portal frame are respectively inserted into the inner sides of the middle tops of the steel pipe piles in a one-to-one correspondence manner;
s3, arranging steel pipe pile flanges on the outer walls of the steel pipe piles, respectively connecting and fixing the steel pipe pile flanges with steel portal frame outer extending leg flanges above the steel pipe piles through a plurality of bolts, leveling the connected flanges, and then grouting and connecting the steel portal frame outer extending legs and the steel pipe piles to fix the steel pipe piles and the steel portal frame outer extending legs into a whole;
s4, after grouting solidification is carried out between the steel portal outer extending legs and the steel pipe piles and design strength is achieved, a tower drum, a hub and blades of the fan are sequentially installed on the steel portal bearing platform from bottom to top to form a whole fan, or the whole fan is assembled and then installed on the steel portal bearing platform of the fan.
Further, the number of the steel portal box girders is more than or equal to 3.
Further, the steel portal bearing platform, the steel portal box girders and the steel portal extending legs are integrally formed.
Furthermore, at least one transverse auxiliary supporting steel pipe is fixedly connected between every two adjacent steel portal extending legs.
Compared with the prior art, the fan installation and construction method based on the portal frame type multi-pile fan foundation realizes that the large-capacity fan unit is installed on water in a deeper sea area based on the portal frame type multi-pile fan foundation, is convenient to construct, does not need underwater pile driving and grouting, is convenient to hoist and transport, has high integral rigidity and definite and stable stress, and can meet the construction requirement even if a small single-pile diameter is used in the process of large installed capacity.
Drawings
Fig. 1 is a schematic structural diagram of a gantry type multi-pile wind turbine foundation used in a wind turbine installation construction method based on a gantry type multi-pile wind turbine foundation according to the present invention;
fig. 2 is a schematic structural diagram of a steel gantry of a gantry type multi-pile fan foundation used in the fan installation construction method based on the gantry type multi-pile fan foundation of the present invention;
fig. 3 is a use state diagram of a gantry type multi-pile steel gantry constructed by the fan installation construction method based on the gantry type multi-pile fan foundation.
Detailed Description
The invention will be further described with reference to the following figures and specific examples, which are not intended to limit the invention in any way.
As shown in fig. 1 and fig. 2, in the method for installing and constructing a wind turbine based on a gantry type multi-pile wind turbine foundation, the installation of an offshore wind turbine is realized based on the gantry type multi-pile wind turbine foundation; in particular, the amount of the solvent to be used,
as shown in fig. 2, the portal frame type multi-pile wind turbine foundation comprises four steel pipe piles 1 and a steel portal frame 2; wherein,
as shown in fig. 3, the steel portal 2 is composed of a steel portal support body and a steel portal platform 2a fixed at the center of the top surface of the steel portal support body in a horizontal state; in particular, the amount of the solvent to be used,
the steel portal support comprises four steel portal box beams 2b, four steel portal outer extending legs 2c and four steel portal outer extending leg flanges 2d which are integrally processed and formed; the four steel portal box girders 2b are uniformly distributed in a radial shape along the circumferential direction, and the inner ends thereof are connected and fixed into a whole; the horizontal plane of the inner side end of each steel portal box girder 2b is slightly higher than the horizontal plane of the outer side end thereof, so that the stress decomposition is realized;
the four steel portal frame outer extending legs 2c are vertically arranged, so that the top ends of the steel portal frame outer extending legs 2c are respectively and correspondingly connected and fixed at the outer side end of each steel portal frame box girder 2 b;
the inner diameter of the steel pipe pile 1 is adapted to the outer diameter of the steel portal frame outer extending legs 2c, so that the bottom ends of the steel portal frame outer extending legs 2c are correspondingly inserted and fixed on the inner side of the top end of each steel pipe pile 1 one by one; specifically, a steel portal frame outer leg extending flange 2d is sleeved and fixed on the outer wall of the middle part of each steel portal frame outer leg extending 2c, a steel pipe pile flange is sleeved and fixed on the outer wall of the top end of each steel pipe pile 1, so that the steel portal frame outer leg extending 2c and the steel pipe pile 1 are detachably connected into a whole, and meanwhile, the steel portal frame outer leg extending 2c and the steel pipe pile 1 are connected into a whole in a grouting mode.
As a preferred embodiment of the application, a transverse auxiliary supporting steel pipe is further connected and fixed between every two adjacent steel portal frame extending legs 2 c.
The specific construction steps of the installation construction method based on the portal frame type multi-pile fan foundation are as follows:
s1, the crane ship, the pile gripper or the limiting frame are located, a plurality of steel pipe piles 1 are inserted into the pile gripper or the limiting frame, and after the steel pipe piles 1 sink into the mud stably, the steel pipe piles are sunk to the designed elevation position by adopting a pile driving hammer;
s2, moving away the pile gripper or the limiting frame, lifting the steel portal frame 2 by the crane ship to be above the steel pipe piles 1 and gradually lowering the steel portal frame to enable the bottom ends of the outer extending legs 2c of the steel portal frame 2 to be respectively inserted into the inner sides of the tops of the steel pipe piles 1 in a one-to-one correspondence mode;
s3, arranging steel pipe pile flanges on the outer wall of each steel pipe pile 1, respectively connecting and fixing the steel pipe pile flanges with steel portal frame outer extending leg flanges 2d above the steel pipe pile flanges through a plurality of bolts, leveling the connected flanges, and then grouting and connecting the steel portal frame outer extending legs 2c and the steel pipe piles 1 to fix the steel pipe pile flanges and the steel portal frame outer extending leg flanges into a whole;
s4, after grouting solidification between the steel portal frame outer extending legs 2c and the steel pipe pile 1 and design strength are achieved, a tower drum, a hub and blades of the fan 3 are sequentially installed on the steel portal frame bearing platform 2a from bottom to top to form a fan whole, or the fan is firstly integrally assembled and then installed on the steel portal frame bearing platform 2a of the fan 3.
In the installation and construction process, when the four steel pipe piles 1 are sunk into the seabed sludge 5 to the elevation positions, the top ends of the steel pipe piles 1 are positioned above the sea surface of seawater 4; the subsequent installation of the steel portal 2 and the fan is completely finished on the water surface, so that the construction difficulty and the construction cost are reduced; and each steel-pipe pile 1 and each steel portal frame extend leg 2c between carry out mechanical connection through the flange and then grout and form firm whole, not only satisfy the requirement of use intensity, the atress is stable, and because simple structure, the process of transportation and hoist and mount has also been simplified.
Portions of the invention not disclosed in detail are well within the skill of the art. Although illustrative embodiments of the present invention have been described above to facilitate the understanding of the present invention by those skilled in the art, it should be understood that the present invention is not limited to the scope of the embodiments, and various changes may be made apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined by the appended claims, and all of the inventive concepts utilizing the inventive concepts are protected.
Claims (4)
1. A fan installation construction method based on a portal frame type multi-pile fan foundation is characterized in that the portal frame type multi-pile fan foundation comprises a plurality of steel pipe piles (1) and steel portal frames (2); the steel portal (2) is composed of a steel portal support body and a steel portal bearing platform (2a) fixed at the center of the top surface of the steel portal support body in a horizontal state; the steel portal support comprises a plurality of steel portal box girders (2b) and a plurality of steel portal extending legs (2 c); a plurality of steel portal box girders (2b) are uniformly distributed in a radial shape along the circumferential direction, and the inner ends of the steel portal box girders are connected and fixed into a whole; the horizontal plane of the inner side end of each steel portal box girder (2b) is slightly higher than the horizontal plane of the outer side end thereof; the plurality of steel portal frame outer extending legs (2c) are arranged in a vertical state, and the number of the steel portal frame outer extending legs is the same as that of the steel portal frame box girders (2b), so that the top ends of the steel portal frame outer extending legs (2c) are respectively and correspondingly connected and fixed at the outer side end of each steel portal frame box girder (2 b); the outer wall of the middle part of each steel portal frame outer extending leg (2c) is sleeved and fixed with a steel portal frame outer extending leg flange (2 d); the inner diameter and the number of the steel pipe piles (1) are respectively adapted to the outer diameter and the number of the steel portal frame outer extending legs (2c), so that the bottom ends of the steel portal frame outer extending legs (2c) can be correspondingly inserted and fixed on the inner side of the top end of each steel pipe pile (1) one by one; a steel pipe pile flange is sleeved and fixed on the outer wall of the top end of each steel pipe pile (1);
the specific construction steps of the fan installation construction method are as follows:
s1, the crane ship, the pile gripper or the limiting frame are located, a plurality of steel pipe piles (1) are inserted into the pile gripper or the limiting frame, and after the steel pipe piles (1) are stable in self-sinking mud, the steel pipe piles are sunk to the designed elevation position by adopting a pile hammer;
s2, moving away the pile gripper or the limiting frame, lifting the steel portal frame (2) by the crane ship to be above a plurality of steel pipe piles (1) and gradually lowering the steel portal frame to ensure that the bottom ends of the steel portal frame outer extending legs (2c) of the steel portal frame (2) are respectively inserted into the inner sides of the middle tops of the steel pipe piles (1) in a one-to-one correspondence manner;
s3, arranging steel pipe pile flanges on the outer wall of each steel pipe pile (1), respectively connecting and fixing the steel pipe pile flanges with steel portal frame outer extending leg flanges (2d) above the steel pipe pile flanges through a plurality of bolts, leveling the connected flanges, and then grouting and connecting the steel portal frame outer extending legs (2c) and the steel pipe piles (1) to fix the steel pipe pile flanges and the steel portal frame outer extending leg flanges into a whole;
s4, after grouting solidification is carried out between the steel portal frame outer extending legs (2c) and the steel pipe pile (1) and design strength is achieved, a tower drum, a hub and blades of the fan (3) are sequentially installed on the steel portal frame bearing platform (2a) from bottom to top to form a fan whole, or the fan whole is assembled and then installed on the steel portal frame bearing platform (2a) of the fan (3).
2. The fan installation and construction method based on the portal frame type multi-pile fan foundation according to claim 1, wherein the number of steel portal frame box girders (2b) is more than or equal to 3.
3. The fan installation and construction method based on a portal frame type multi-pile fan foundation according to claim 1 or 2, characterized in that the steel portal bearing platform (2a), the plurality of steel portal frame box girders (2b) and the plurality of steel portal frame outer extending legs (2c) are integrally formed.
4. The fan installation and construction method based on the portal frame type multi-pile fan foundation according to claim 1, characterized in that at least one transverse auxiliary support steel pipe is further fixedly connected between every two adjacent steel portal frame outer extending legs (2 c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110648539.8A CN113373967A (en) | 2021-06-10 | 2021-06-10 | Fan installation construction method based on portal frame type multi-pile fan foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110648539.8A CN113373967A (en) | 2021-06-10 | 2021-06-10 | Fan installation construction method based on portal frame type multi-pile fan foundation |
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| CN113373967A true CN113373967A (en) | 2021-09-10 |
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| CN202110648539.8A Withdrawn CN113373967A (en) | 2021-06-10 | 2021-06-10 | Fan installation construction method based on portal frame type multi-pile fan foundation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115305956A (en) * | 2022-08-26 | 2022-11-08 | 中交第三航务工程局有限公司 | Construction method of suspension tunnel anchoring system |
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| CN202247928U (en) * | 2011-08-31 | 2012-05-30 | 中国水电顾问集团华东勘测设计研究院 | Multi-pile gantry type marine wind turbine generator system base structure |
| CN103255778A (en) * | 2013-03-22 | 2013-08-21 | 广东明阳风电产业集团有限公司 | Grouting positioning and leveling method for offshore wind turbine jacket foundation setting |
| CN105201010A (en) * | 2015-09-30 | 2015-12-30 | 浙江大学 | Assembled inclined-pile foundation for offshore wind turbine |
| WO2017020697A1 (en) * | 2015-08-03 | 2017-02-09 | 广东明阳风电产业集团有限公司 | Construction device and method for offshore wind turbine foundation with piling performed later |
| US20180340312A1 (en) * | 2017-05-25 | 2018-11-29 | Powerchina Huadong Engineering Corporation Limited | Offshore non-driven-in large-diameter monopile foundation structure and constryction method |
| CN109469089A (en) * | 2018-12-03 | 2019-03-15 | 中交三航（上海）新能源工程有限公司 | A kind of interpolation type offshore wind farm jacket basis carrying steady pipe casing and construction method |
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2021
- 2021-06-10 CN CN202110648539.8A patent/CN113373967A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202247928U (en) * | 2011-08-31 | 2012-05-30 | 中国水电顾问集团华东勘测设计研究院 | Multi-pile gantry type marine wind turbine generator system base structure |
| CN103255778A (en) * | 2013-03-22 | 2013-08-21 | 广东明阳风电产业集团有限公司 | Grouting positioning and leveling method for offshore wind turbine jacket foundation setting |
| WO2017020697A1 (en) * | 2015-08-03 | 2017-02-09 | 广东明阳风电产业集团有限公司 | Construction device and method for offshore wind turbine foundation with piling performed later |
| CN105201010A (en) * | 2015-09-30 | 2015-12-30 | 浙江大学 | Assembled inclined-pile foundation for offshore wind turbine |
| US20180340312A1 (en) * | 2017-05-25 | 2018-11-29 | Powerchina Huadong Engineering Corporation Limited | Offshore non-driven-in large-diameter monopile foundation structure and constryction method |
| CN109469089A (en) * | 2018-12-03 | 2019-03-15 | 中交三航（上海）新能源工程有限公司 | A kind of interpolation type offshore wind farm jacket basis carrying steady pipe casing and construction method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115305956A (en) * | 2022-08-26 | 2022-11-08 | 中交第三航务工程局有限公司 | Construction method of suspension tunnel anchoring system |
| CN115305956B (en) * | 2022-08-26 | 2024-02-02 | 中交第三航务工程局有限公司 | Construction method of suspension tunnel anchoring system |
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