CN106801429B - Method for installing fan outer platform for single pile foundation - Google Patents
Method for installing fan outer platform for single pile foundation Download PDFInfo
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- CN106801429B CN106801429B CN201710196055.8A CN201710196055A CN106801429B CN 106801429 B CN106801429 B CN 106801429B CN 201710196055 A CN201710196055 A CN 201710196055A CN 106801429 B CN106801429 B CN 106801429B
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- 238000000034 method Methods 0.000 title claims description 9
- 238000009434 installation Methods 0.000 claims abstract description 15
- 230000007704 transition Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000005489 elastic deformation Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
Classifications
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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
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
-
- 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
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- Engineering & Computer Science (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)
- Structural Engineering (AREA)
- Revetment (AREA)
- Piles And Underground Anchors (AREA)
Abstract
An external fan platform for a single pile foundation. Relates to the field of fan outer platforms. The fan outer platform for the single pile foundation is exquisite in structure, convenient to install, good in stability, high in connection precision and strong in wind wave resistance. The outer fan platform is sleeved on the single pile foundation and comprises a body, a plurality of concentric ring beams and at least one cable duct, wherein the ring beams are fixedly connected in the body and are sleeved on the single pile foundation in an empty mode; the end face of the fixing block, which is back to the single pile foundation, is provided with a first slot which is matched with the inserting block, and the inner wall of the ring beam is provided with a plurality of second slots which are matched with the inserting block. The utility model has the advantages of convenient installation, good stability, high connection precision, strong wind and wave resistance and the like on the whole.
Description
Technical Field
The utility model relates to the field of fan outer platforms.
Background
The external platform of the single pile type offshore wind turbine in the prior art is mostly shown as an integrated auxiliary structure of the single pile foundation of the offshore wind turbine, which is announced by the national intellectual property agency in 2015, 9 months and 2 days, and an utility model patent with the application number of 201520060051.3, and the single pile type offshore wind turbine is sleeved on the single pile foundation and mainly comprises the external platform of the offshore wind turbine, a cable protection tube, an anti-collision system, a sacrificial anode and a plurality of ring beams. However, because the structure is too simple, the device has the defects of high installation difficulty, low connection precision, poor connection stability, poor wind wave resistance and the like.
Disclosure of Invention
Aiming at the problems, the utility model provides the fan outer platform for the single pile foundation, which has the advantages of exquisite structure, convenience in installation, good stability, high connection precision and strong wind wave resistance.
The technical scheme of the utility model is as follows: the outer fan platform is sleeved on the single pile foundation and comprises a body, a plurality of concentric ring beams and at least one cable duct, wherein the ring beams are fixedly connected in the body and are sleeved on the single pile foundation in an empty mode;
the cable pipeline is fixedly connected with a plurality of ring beams, the cable pipeline comprises n straight pipes and n-1 connecting pipes, all the straight pipes and the connecting pipes are coaxially arranged, a gap is formed between every two adjacent straight pipes, the connecting pipes are arranged in the gap, the head end and the tail end of each connecting pipe are fixedly connected with the two straight pipes respectively, the connecting pipes are bellows expansion joints, and the straight pipes or the connecting pipes are fixedly connected with the ring beams;
the outer platform further comprises a plurality of mounting rings and a plurality of groups of fixing blocks, wherein the mounting rings and the fixing blocks are in one-to-one correspondence with the ring beams, the same group of fixing blocks are identical in height and are fixedly connected to the outer wall of the single pile foundation, the same group of fixing blocks are positioned in one ring beam, and the bottom of the ring beam is fixedly connected with a limiting ring for supporting the fixing blocks; the mounting ring comprises an annular substrate and a plurality of inserting blocks, wherein the substrate is fixedly connected with the top surface of the ring beam through a plurality of bolts, and the inserting blocks are fixedly connected to the bottom surface of the substrate and inserted between the fixing blocks and the ring beam.
The outside fixedly connected with connecting seat of collar tie beam, cable duct passes through connecting seat and collar tie beam fixed connection.
The insert block is in a stepped shaft shape with a small bottom and a large top, and a conical surface-shaped transition surface is arranged between a large shaft and a small shaft of the stepped shaft.
The end face of the fixing block, which is back to the single pile foundation, is provided with a first slot which is matched with the inserting block, and the inner wall of the ring beam is provided with a plurality of second slots which are matched with the inserting block.
Aiming at poor connection stability and poor wind and wave resistance, the axial compensation of the allowable range of the relative displacement between the straight pipe and the ring beam can be carried out through the elastic deformation of the connecting pipe, so that the relative displacement between the cable pipeline and the ring beam can be carried out within a certain allowable range in an elastic deformation mode, and the displacement does not influence the connection stability between the cable pipeline and the ring beam. The method aims at the problems of high installation difficulty and low connection precision, and the self structural strength of the outer platform is greatly improved through the coaxial centers of the single pile foundation and all ring beams, and the connection strength between the outer platform and the single pile foundation is also greatly improved. The utility model has the advantages of convenient installation, good stability, high connection precision, strong wind and wave resistance and the like on the whole.
Drawings
Figure 1 is a schematic view of the structure of the present case,
figure 2 is a perspective view of the present case,
figure 3 is a schematic view of the cable duct in this case,
figure 4 is an axial cross-sectional view of the mounting ring of the present case,
figure 5 is a view showing the use state of the mounting ring,
FIG. 6 is a schematic view of the structure of the driving half ring in the present case;
in the figure, 1 is a single pile foundation, 2 is a body, 3 is a ring beam, 30 is a slot II, 31 is a limiting ring, 32 is a connecting seat, 4 is a mounting ring, 41 is a base plate, 410 is a bolt, 42 is an inserting block, 420 is an excessive surface, 5 is a fixed block, 50 is a slot I, 6 is a driving semi-ring, 7 is a cable duct, 71 is a straight pipe, 72 is a connecting pipe, and 73 is a flange.
Detailed Description
1-6, the outer fan platform is sleeved on a single pile foundation and comprises a body, a plurality of concentric ring beams and at least one cable duct, wherein the ring beams are fixedly connected in the body and are sleeved on the single pile foundation in an empty mode;
the following improvements are made to the poor connection stability and the poor wind and wave resistance:
the cable duct 7 is fixedly connected with the ring beams 3, the cable duct 7 comprises n straight pipes 71 and n-1 connecting pipes 72, n is an integer larger than 1, all the straight pipes 71 and the connecting pipes 72 are coaxially arranged, a gap is reserved between every two adjacent straight pipes 71, the connecting pipes 72 are arranged in the gap, the head end and the tail end of each connecting pipe 72 are fixedly connected with the two straight pipes 71 respectively, the connecting pipes 72 are bellows expansion joints, and the straight pipes 71 or the connecting pipes 72 are fixedly connected with the ring beams 3. Therefore, when the cable pipe bears wind waves, the relative displacement between the straight pipe and the ring beam can be axially compensated within an allowable range through the elastic deformation of the connecting pipe, so that the relative displacement between the cable pipe and the ring beam can be carried out within a certain allowable range in an elastic deformation mode, and the connection stability between the cable pipe and the ring beam is not affected by the displacement. The cable has the characteristics of high structural stability, high connection strength, strong capability of adapting to stormy waves and good protection effect on the cable on the whole.
Aiming at the problems of high installation difficulty and low connection precision, the scheme makes the following improvements:
the outer platform further comprises a plurality of mounting rings 4 and a plurality of groups of fixing blocks 5 which are in one-to-one correspondence with the plurality of ring beams 3, wherein the same group of fixing blocks 5 are identical in height and are fixedly connected to the outer wall of the single pile foundation 1, the same group of fixing blocks 5 are positioned in one ring beam 3, and the bottom of the ring beam 3 is fixedly connected with a limiting ring 31 for supporting the fixing blocks 5; the mounting ring 4 comprises an annular base plate 41 and a plurality of inserting blocks 42, the base plate 41 is fixedly connected with the top surface of the ring beam 3 through a plurality of bolts 410, and the inserting blocks 42 are fixedly connected to the bottom surface of the base plate 41 and are inserted between the fixing blocks 5 and the ring beam 3. Therefore, after the fixing blocks and the limiting plates are installed, the mounting rings can be installed from top to bottom, so that the inserting blocks are inserted between the fixing blocks and the ring beams, the single pile foundation, the fixing blocks, the inserting blocks and the ring beams are tightly connected, and further, the ring beams and the single pile foundation are ensured to keep high concentricity. And then, assembling a plurality of mounting rings one by one, so that the self structural strength of the outer platform is greatly improved through the coaxial centers of the single pile foundation and all ring beams, and the connection strength between the outer platform and the single pile foundation is also greatly improved.
The straight pipe 71 and the connecting pipe 72 are fixedly connected and communicated with each other through a connecting flange 73. Therefore, the straight pipes and the connecting pipes can be installed one by one, and the problems of large installation difficulty and the like of the traditional cable protection pipe due to oversized size are greatly reduced.
The outside fixedly connected with connecting seat 32 of circle roof beam 3, cable duct 7 passes through connecting seat 32 and the fixed connection of circle roof beam 3.
The insert 42 is in a stepped shaft shape with a small bottom and a large top, and a conical transition surface 420 is provided between the large shaft and the small shaft of the stepped shaft. Therefore, the small shaft of the stepped shaft can be used for positioning during installation, and after the installation, the gap between the large shaft of the stepped shaft and the fixed block and the ring beam is in an interference fit state.
The end face of the fixing block 5, which is away from the single pile foundation 1, is provided with a first slot 50 which is matched with the inserting block 42, and the inner wall of the ring beam 3 is provided with a plurality of second slots 30 which are matched with the inserting block 42. Therefore, the first and second slots have good and stable guiding function at the initial stage of installation, so that the installation of the mounting ring can be faster and more convenient, and the whole installation period of the outer platform is greatly shortened.
The base plate 41 of the mounting ring 4 is composed of two semi-circular ring-shaped semi-base plates, and the two semi-base plates are detachably connected. Therefore, the mounting difficulty is reduced, and the mounting efficiency is obviously improved.
The top of the bolt 410 is fixedly connected with a driving gear, a pair of detachably connected driving semi-rings 6 is sleeved outside the single pile foundation 1, and inner teeth meshed with the driving gear are arranged on the inner wall of the driving semi-rings 6. When the screw bolt tightening device is used, at the initial stage of tightening a plurality of screws, all the screws on the same mounting ring are screwed down and tightened simultaneously by rotating the two connected driving semi-rings, and when the screws have larger tightening force, the screws are tightened one by manually through tools such as a torque wrench and the like, so that the tightening force on all the screws is consistent. Therefore, all the plug blocks on the same mounting ring can be simultaneously inserted in the initial stage, and the problem that the plug blocks on the other side cannot be inserted due to the fact that the plug blocks on one side are inserted first is effectively avoided.
The method comprises the following steps of: the single pile foundation in the scheme consists of a steel cylinder and concrete in the steel cylinder, so that the description needs to be given here that the single pile foundation in the following installation process is the steel cylinder;
1) And (3) installing a fixing block:
1.1 Hoisting the single pile foundation to a plumb state;
1.2 Drawing a datum line on the outer wall of the single pile foundation;
1.3 Firstly, lifting the fixed block to a plumb state, and then welding the fixed block on the outer wall of the single pile foundation according to a datum line; because the volume of the fixed block is far smaller than that of the single pile foundation, only the fixed connection between the fixed block and the single pile foundation is completed, and the high connection strength and the high matching precision can be maintained;
2) Placing a single pile foundation: placing the single pile foundation connected with the fixed block into an outer platform; so that the ring beam is sleeved with the single pile foundation in an empty mode, and a plurality of groups of fixing blocks are arranged in a plurality of ring beams corresponding to the ring beams respectively;
3) Setting a limiting ring: attaching a plurality of limiting rings to the bottom surfaces of a plurality of ring beams one by one, and completing the fixed connection between the limiting rings and the ring beams; thereby providing a further supporting force for the fixed block;
4) And (3) setting a mounting ring: completing the fixed connection between every two half base plates one by one, and enabling a plurality of installation annular rings to be sleeved on the single pile foundation; at this time, the insert block below the mounting ring is arranged towards the gap between the fixed block and the ring beam;
5) Fastening the mounting rings one by one:
5.1 Aligning the insert block with the gap between the fixed block and the ring beam, and inserting the bottom end of the insert block between the fixed block and the ring beam; at the moment, a small amount of looseness is still kept among the three components;
5.2 Placing bolts and completing detachable connection between every two driving semi-rings;
5.3 Firstly, rotating the driving semi-ring to enable the bolt to rotate downwards for a distance of one end, and manually screwing the bolt and checking the screwing force when the driving semi-ring is dismounted; and (5) finishing. Therefore, the large shaft in the insert block is gradually pressed between the fixed block and the ring beam, and is in an interference fit state with the fixed block, so that the single pile foundation, the fixed block, the insert block and the ring beam are tightly connected, and the ring beam and the single pile foundation are ensured to keep high concentricity.
Claims (4)
1. The installation method of the outer fan platform for the single pile foundation is characterized in that the outer fan platform is sleeved on the single pile foundation and comprises a body, a plurality of concentric ring beams and at least one cable duct, wherein the ring beams are fixedly connected in the body and are sleeved on the single pile foundation in an empty mode;
the cable pipeline is fixedly connected with a plurality of ring beams, the cable pipeline comprises n straight pipes and n-1 connecting pipes, all the straight pipes and the connecting pipes are coaxially arranged, a gap is formed between every two adjacent straight pipes, the connecting pipes are arranged in the gap, the head end and the tail end of each connecting pipe are fixedly connected with the two straight pipes respectively, the connecting pipes are bellows expansion joints, and the straight pipes or the connecting pipes are fixedly connected with the ring beams;
the outer platform further comprises a plurality of mounting rings and a plurality of groups of fixing blocks, wherein the mounting rings and the fixing blocks are in one-to-one correspondence with the ring beams, the same group of fixing blocks are identical in height and are fixedly connected to the outer wall of the single pile foundation, the same group of fixing blocks are positioned in one ring beam, and the bottom of the ring beam is fixedly connected with a limiting ring for supporting the fixing blocks; the mounting ring comprises an annular base plate and a plurality of inserting blocks, the base plate is fixedly connected with the top surface of the ring beam through a plurality of bolts, and the inserting blocks are fixedly connected to the bottom surface of the base plate and are inserted between the fixing blocks and the ring beam;
the base plate of the mounting ring consists of two semi-circular semi-base plates which are detachably connected;
the top of the bolt is fixedly connected with a driving gear, a pair of detachably connected driving semi-rings is sleeved outside the single pile foundation, and inner teeth meshed with the driving gear are arranged on the inner wall of each driving semi-ring;
the method comprises the following steps of:
1) And (3) installing a fixing block:
1.1 Hoisting the single pile foundation to a plumb state;
1.2 Drawing a datum line on the outer wall of the single pile foundation;
1.3 Firstly, lifting the fixed block to a plumb state, and then welding the fixed block on the outer wall of the single pile foundation according to a datum line; because the volume of the fixed block is far smaller than that of the single pile foundation, only the fixed connection between the fixed block and the single pile foundation is completed, and the high connection strength and the high matching precision can be maintained;
2) Placing a single pile foundation: placing the single pile foundation connected with the fixed block into an outer platform; so that the ring beam is sleeved with the single pile foundation in an empty mode, and a plurality of groups of fixing blocks are arranged in a plurality of ring beams corresponding to the ring beams respectively;
3) Setting a limiting ring: attaching a plurality of limiting rings to the bottom surfaces of a plurality of ring beams one by one, and completing the fixed connection between the limiting rings and the ring beams; thereby providing a further supporting force for the fixed block;
4) And (3) setting a mounting ring: completing the fixed connection between every two half base plates one by one, and enabling a plurality of installation annular rings to be sleeved on the single pile foundation; at this time, the insert block below the mounting ring is arranged towards the gap between the fixed block and the ring beam;
5) Fastening the mounting rings one by one:
5.1 Aligning the insert block with the gap between the fixed block and the ring beam, and inserting the bottom end of the insert block between the fixed block and the ring beam; at the moment, a small amount of looseness is still kept among the three components;
5.2 Placing bolts and completing detachable connection between every two driving semi-rings;
5.3 Firstly, rotating the driving semi-ring to enable the bolt to rotate downwards for a distance of one end, and manually screwing the bolt and checking the screwing force when the driving semi-ring is dismounted; and (5) finishing.
2. The method for installing the outer fan platform for the single pile foundation according to claim 1, wherein the outer side of the ring beam is fixedly connected with a connecting seat, and the cable pipeline is fixedly connected with the ring beam through the connecting seat.
3. The method for installing an outer fan platform for a single pile foundation according to claim 1, wherein the insert block is in a stepped shaft shape with a small bottom and a large top, and a conical transition surface is arranged between a large shaft and a small shaft of the stepped shaft.
4. The method for installing the fan outer platform for the single pile foundation according to claim 1, wherein the end face of the fixing block, which faces away from the single pile foundation, is provided with a first slot which is matched with the plug block, and the inner wall of the ring beam is provided with a plurality of second slots which are matched with the plug block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710196055.8A CN106801429B (en) | 2017-03-29 | 2017-03-29 | Method for installing fan outer platform for single pile foundation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710196055.8A CN106801429B (en) | 2017-03-29 | 2017-03-29 | Method for installing fan outer platform for single pile foundation |
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| Publication Number | Publication Date |
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| CN106801429A CN106801429A (en) | 2017-06-06 |
| CN106801429B true CN106801429B (en) | 2023-10-27 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107268664B (en) * | 2017-07-18 | 2019-02-19 | 江苏海灵重工设备科技有限公司 | A kind of packaging technology of high-power blower single pile set cage |
| CN108166521B (en) * | 2018-03-10 | 2023-09-08 | 江苏巨鑫石油钢管有限公司 | Leveling device and leveling method for single pile foundation in offshore wind power equipment |
| CN108788413B (en) * | 2018-07-17 | 2023-12-05 | 江苏海力海上风电装备制造有限公司 | Welding equipment for ring beam of single-pile foundation accessory component of offshore wind turbine generator system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852154A (en) * | 2012-08-01 | 2013-01-02 | 天津大学 | Composite pile foundation |
| CN102852155A (en) * | 2012-08-01 | 2013-01-02 | 天津大学 | Composite pile foundation |
| CN204610156U (en) * | 2015-01-28 | 2015-09-02 | 中国电建集团华东勘测设计研究院有限公司 | Offshore wind turbine single-pile foundation integrated form accessory structure |
| CN205369291U (en) * | 2015-12-11 | 2016-07-06 | 江苏海力风电设备科技有限公司 | High -power offshore wind power generation unit single pile basis integrated form annex mechanism |
| CN106122659A (en) * | 2016-08-19 | 2016-11-16 | 李中来 | Combined pipe fitting and the circumference process equipment of corrugated tube thereof and processing method |
-
2017
- 2017-03-29 CN CN201710196055.8A patent/CN106801429B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852154A (en) * | 2012-08-01 | 2013-01-02 | 天津大学 | Composite pile foundation |
| CN102852155A (en) * | 2012-08-01 | 2013-01-02 | 天津大学 | Composite pile foundation |
| CN204610156U (en) * | 2015-01-28 | 2015-09-02 | 中国电建集团华东勘测设计研究院有限公司 | Offshore wind turbine single-pile foundation integrated form accessory structure |
| CN205369291U (en) * | 2015-12-11 | 2016-07-06 | 江苏海力风电设备科技有限公司 | High -power offshore wind power generation unit single pile basis integrated form annex mechanism |
| CN106122659A (en) * | 2016-08-19 | 2016-11-16 | 李中来 | Combined pipe fitting and the circumference process equipment of corrugated tube thereof and processing method |
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| CN106801429A (en) | 2017-06-06 |
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