CN113445537A - Jacket manufactured in factory and spliced by bolts on site and construction method - Google Patents
Jacket manufactured in factory and spliced by bolts on site and construction method Download PDFInfo
- Publication number
- CN113445537A CN113445537A CN202110728716.3A CN202110728716A CN113445537A CN 113445537 A CN113445537 A CN 113445537A CN 202110728716 A CN202110728716 A CN 202110728716A CN 113445537 A CN113445537 A CN 113445537A
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- CN
- China
- Prior art keywords
- jacket
- column
- splicing
- bolt
- point
- 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
- 238000010276 construction Methods 0.000 title claims abstract description 15
- 230000001681 protective effect Effects 0.000 claims description 26
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 230000011218 segmentation Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000010923 batch production Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 238000004891 communication Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 5
- 239000011440 grout Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229920002457 flexible plastic Polymers 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
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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
-
- 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
Abstract
The invention relates to a jacket manufactured in an industrial manner and spliced by bolts on site and a construction method, the jacket comprises a jacket column (1), jacket diagonal rods (2) and jacket transverse rods (3), the jacket column (1) is of a segmented splicing structure, adjacent segments are spliced and fixed through bolt splicing pieces to form a tower column splicing point (6), connectors for connecting the jacket diagonal rods (2) and the jacket transverse rods (3) are preset on the outer side of the jacket column (1), the jacket diagonal rods (2) are obliquely arranged, the jacket transverse rods (3) are horizontally arranged, and two ends of each of the jacket diagonal rods (2) and the jacket transverse rods (3) are respectively spliced and fixed with the corresponding connectors on the jacket column (1) through the bolt splicing pieces to form web rod splicing points (4). Compared with the prior art, the jacket has the advantages of being quick and efficient to build, long in service life of the jacket and the like.
Description
Technical Field
The invention belongs to the technical field of connection of offshore wind power structures or other offshore steel structures in structural engineering, and particularly relates to a jacket manufactured in an industrialized mode and spliced by bolts on site and a construction method.
Background
At present, the state develops a large-scale offshore wind power plant, the development amount of offshore wind power steel structures is large, the power of a single fan is increased, and the structure amount is also increased. The offshore wind turbine is developed to a distant sea area, and the increase of the water depth causes a new challenge to the construction of the traditional offshore jacket.
The traditional offshore jacket construction is carried out in a seaside assembly field, the high-altitude operation process is complicated, the construction period is long, the cost is high, the welding seam quality cannot be guaranteed, and the corrosion resistance is poor.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a jacket manufactured in a factory and spliced by bolts on site and a construction method.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a jacket of batch production preparation, on-spot bolt concatenation, includes jacket post, jacket down tube and jacket horizontal pole, the jacket post be segmentation mosaic structure, splice through the bolt splice between the adjacent segmentation and fix and form the column splicing point, the jacket post outside predetermine the connector that is used for connecting jacket down tube and jacket horizontal pole, the slope of jacket down tube set up, jacket horizontal pole level set up, jacket down tube and jacket horizontal pole both ends equally divide and do not splice the fixed web member splicing point that forms of connector that corresponds on bolt splice and the jacket post.
The bolt splicing piece comprises flanges arranged at the end parts of two pieces to be spliced, bolt holes are formed in the flanges, the bolt splicing piece further comprises a bolt and a nut, and the bolt penetrates through the flanges through the bolt holes and is fixed through the nut.
The connector with the pipe frame post welded fastening.
The jacket cross rods are provided with a plurality of cross rods and are sequentially arranged along the set height.
A plurality of jacket diagonal rods are arranged between the jacket cross rods with different heights, and the jacket diagonal rods are arranged between the jacket cross rods.
The inclined directions of the adjacent two jacket inclined rods are opposite.
The bottom of the jacket column is fixedly connected with a pile driven into the seabed through a column base connecting piece to form a column base connecting point.
And rigid inner grouting protective sleeves are arranged outside the tower column splicing points and the web member splicing points.
And a flexible inner grouting protective sleeve is arranged outside the column base connecting point.
A construction method for a jacket manufactured in factory and spliced by bolts on site comprises the following steps:
a. manufacturing a jacket column, a jacket diagonal rod and a jacket transverse rod in an industrial manner;
b. a flange is welded at the joint of the jacket column, and flanges are welded at the joints of the jacket diagonal rods, the jacket transverse rods and the jacket column;
c. transporting the jacket columns, the jacket diagonal rods and the jacket transverse rods to seaside land for assembly;
d. a tower column splicing point is formed at the connecting position of the conduit frame columns, and a web member splicing point is formed at the connecting position of the conduit frame inclined rod, the conduit frame cross rod and the conduit frame columns;
e. the flanges at the splicing points of the tower column and the web member are aligned, bolts penetrate through the flanges through bolt holes, and are screwed tightly to connect the jacket column, the jacket diagonal rod and the jacket transverse rod;
f. sealing the flange on the onshore splicing site by using a rigid internal grouting protective sleeve to protect the web member splicing point and the tower column splicing point which are positioned at the underwater position;
g. the bottom of the jacket column is fixedly connected with a pile driven into the seabed through a column base connecting piece to form a column base connecting point, and then the flexible inner grouting protective sleeve is used for protecting the column base connecting point underwater.
Compared with the prior art, the invention has the following advantages:
(1) the invention has the advantages that all welding seams of the jacket are carried out in a factory and on the ground, the welding seams can be welded at the best station, the quality is easy to check, and only the tower column splicing point and the web member splicing point which work aloft on the splicing site are spliced by the bolt splicing pieces, so that the splicing is rapid and the quality is easy to control.
(2) The jacket has the characteristics of standardization and industrialization, has the advantages of rapidness and controllable quality, and greatly reduces overhead operation.
(3) According to the invention, the rigid inner grouting protective sleeves are arranged outside the tower column splicing points and the web member splicing points, so that the splicing points can be effectively protected from being corroded by seawater, the stability of the jacket is improved, and the service life of the jacket is effectively prolonged;
(4) the flexible inner grouting protective sleeve is arranged outside the column base connecting point, grouting operation can be performed underwater through the flexible inner grouting protective sleeve, construction is convenient, and durability is good.
Drawings
FIG. 1 is a schematic view of an industrially manufactured, field bolted jacket of the present invention;
FIG. 2 is a diagonal elevation view of FIG. 1;
figure 3 is a cross-sectional view of a catheter mount post at one location.
In the figure, 1 is a conduit support column; 2 is a jacket diagonal rod; 3 is a jacket cross bar; 4 is a web member splicing point; 5 is a flexible inner grouting protective sleeve; 6 is a tower column splicing point; 7 is a pile; and 8 is a rigid inner grouting protective sleeve.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. Note that the following description of the embodiments is merely a substantial example, and the present invention is not intended to be limited to the application or the use thereof, and is not limited to the following embodiments.
Examples
As shown in fig. 1 to fig. 3, the embodiment provides a jacket manufactured in a factory and spliced by bolts on site, which includes a jacket column 1, a jacket diagonal rod 2 and a jacket transverse rod 3, the jacket column 1 is a segmented splicing structure, adjacent segments are spliced and fixed by bolt splicers to form a tower column splicing point 6, a connector for connecting the jacket diagonal rod 2 and the jacket transverse rod 3 is preset outside the jacket column 1, and the connector is welded and fixed with the jacket column 1.
The 2 slopes of jacket down tube set up, and 3 levels of jacket horizontal pole set up, and the fixed web member concatenation point 4 that forms of connector concatenation that corresponds on jacket down tube 2 and the jacket horizontal pole are equallyd divide respectively through bolt splice and the jacket post 1, and the jacket is whole to be the tower form.
The bolt splicing piece comprises two flanges which are arranged at the end parts of the splicing piece and are provided with bolt holes, the bolt splicing piece further comprises a bolt and a nut, and the bolt penetrates through the flanges through the bolt holes and is fixed through the nut.
The jacket cross rods 3 are provided with a plurality of cross rods and are sequentially arranged along a set height. A plurality of jacket inclined rods 2 are arranged between jacket cross rods 3 with different heights, the inclined directions of the jacket inclined rods 2 are opposite, and the inclined directions of two adjacent jacket inclined rods 2 are opposite.
The bottom of the guide pipe frame column 1 is fixedly connected with a pile 7 driven into the seabed through a column base connecting piece to form a column base connecting point.
The outside of the tower column splicing point 6 and/or the web member splicing point 4 is provided with a rigid inner grouting protective sleeve 8, and the outside of the column base connecting point is provided with a flexible inner grouting protective sleeve 5. Grouting protective sheath 8 can set up to the protective sheath of rigid plastic material in the rigidity, and grouting protective sheath 5 can set up to the protective sheath of flexible plastic material in the flexibility, and the protective sheath is established in the outside of connected node, is equipped with evacuation pipe and grout pipe on it, and evacuation pipe is used for bleeding or the sea water discharge in the protective sheath, and grout pipe is used for pouring into grouting material in to the protective sheath. Wherein the protective sheath of rigid plastic material uses when being used for the land construction, uses when the protective sheath of flexible plastic material is used for the underwater construction, and the grout in the protection can effectively protect the connected node, and the durability is good.
The construction steps of the jacket manufactured in a factory and spliced by bolts on site of the invention are specifically described as follows, which specifically comprises the following steps:
a. respectively manufacturing a jacket column 1, a jacket diagonal rod 2 and a jacket cross rod 3 according to design requirements;
b. a flange is welded at the joint of the jacket column 1, and flanges are welded at the joints of the jacket diagonal rods 2, the jacket cross rods 3 and the jacket column 1;
c. transporting the jacket columns 1, jacket diagonal rods 2 and jacket transverse rods 3 to seaside land for assembly;
d. a tower column splicing point 6 is formed at the joint of the conduit frame column 1, and a web member splicing point 4 is formed at the joint of the conduit frame inclined rod 2, the conduit frame cross rod 3 and the conduit frame column 1;
e. flanges at the tower column splicing point 6 and the web member splicing point 4 are aligned, bolts penetrate through the flanges through bolt holes, are screwed tightly, and are connected with the jacket column 1, the jacket diagonal rod 2 and the jacket transverse rod 3;
f. a rigid inner grouting protective sleeve 8 is used for sealing the flange on the onshore splicing site so as to protect the web member splicing point 4 and the tower column splicing point 6 which are positioned at the underwater position;
g. piling 7 in a conduit frame column foot sleeve of the conduit frame column 1, connecting the column 7 with the conduit frame column foot sleeve, and then protecting the connection point of the column and the column foot by using a flexible inner grouting protective sleeve 5 under water.
The invention promotes the standardization and the industrialization of the manufacturing and the installation of the jacket, has quick and efficient construction and prolongs the service life of the jacket.
The above embodiments are merely examples and do not limit the scope of the present invention. These embodiments may be implemented in other various manners, and various omissions, substitutions, and changes may be made without departing from the technical spirit of the present invention.
Claims (10)
1. The utility model provides a jacket of batch production preparation, on-spot bolt concatenation, a serial communication port, including jacket post (1), jacket down tube (2) and jacket horizontal pole (3), jacket post (1) for segmentation mosaic structure, splice through the bolt splicing between the adjacent segmentation and fix formation tower column splicing point (6), jacket post (1) outside predetermine the connector that is used for connecting jacket down tube (2) and jacket horizontal pole (3), jacket down tube (2) slope set up, jacket horizontal pole (3) level set up, jacket down tube (2) and jacket horizontal pole (3) both ends equally divide and do not form web member splicing point (4) through the fixed formation of the splicing connector that corresponds on bolt splicing and the jacket post (1).
2. The factory-made and field-bolted jacket according to claim 1, wherein said bolt splices comprise flanges disposed at the ends of two members to be spliced, said flanges having bolt holes, said bolt splices further comprising bolts and nuts, said bolts penetrating said flanges through said bolt holes and being secured by said nuts.
3. An industrially manufactured and field bolted jacket according to claim 1, characterized in that said connectors are welded to said jacket post (1).
4. An industrially produced, field bolted jacket according to claim 1, characterized in that said jacket rails (3) are provided in a plurality and arranged one after the other along a set height.
5. An industrially produced, field bolted jacket according to claim 4, characterized in that a plurality of jacket diagonals (2) are arranged between two jacket transverse rods (3) of different heights, said jacket diagonals (2).
6. An industrially produced, field bolted jacket according to claim 5, characterized in that the inclination of two adjacent jacket struts (2) is opposite.
7. An industrially produced, field bolted jacket according to claim 1, characterized in that the bottom of the jacket column (1) is fixedly connected to the piles (7) driven into the seabed by means of a plinth connection to form a plinth connection point.
8. An industrially produced and on-site bolt-spliced jacket as claimed in claim 1, wherein the tower splicing points (6) and the web splicing points (4) are externally provided with rigid inner grouting protective sleeves (8).
9. A factory made, field bolted jacket according to claim 7, characterized in that said column base joints are externally provided with a flexible internal grouting protective jacket (5).
10. A construction method for a jacket manufactured in a factory and spliced by bolts on site is characterized by comprising the following steps:
a. the method comprises the following steps of (1) industrially manufacturing a jacket column (1), a jacket diagonal rod (2) and a jacket cross rod (3);
b. a flange is welded at the joint of the jacket column (1), and a flange is welded at the joint of the jacket diagonal rod (2), the jacket cross rod (3) and the jacket column (1);
c. transporting the jacket columns (1), the jacket diagonal rods (2) and the jacket cross rods (3) to seaside land for splicing;
d. a tower column splicing point (6) is formed at the joint of the conduit frame column (1), and a web member splicing point (4) is formed at the joint of the conduit frame inclined rod (2), the conduit frame cross rod (3) and the conduit frame column (1);
e. flanges at the tower column splicing point (6) and the web member splicing point (4) are aligned, bolts penetrate through the flanges through bolt holes, are screwed, and are connected with the jacket column (1), the jacket diagonal rod (2) and the jacket cross rod (3);
f. a rigid inner grouting protective sleeve (8) is used for sealing the flange on the onshore splicing site so as to protect the web member splicing point (4) and the tower column splicing point (6) which are positioned at the underwater position;
g. the bottom of the guide pipe frame column (1) is fixedly connected with a pile (7) driven into the seabed through a column base connecting piece to form a column base connecting point, and then a flexible inner grouting protective sleeve (5) is used for protecting the column base connecting point underwater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110728716.3A CN113445537A (en) | 2021-06-29 | 2021-06-29 | Jacket manufactured in factory and spliced by bolts on site and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110728716.3A CN113445537A (en) | 2021-06-29 | 2021-06-29 | Jacket manufactured in factory and spliced by bolts on site and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113445537A true CN113445537A (en) | 2021-09-28 |
Family
ID=77814017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110728716.3A Pending CN113445537A (en) | 2021-06-29 | 2021-06-29 | Jacket manufactured in factory and spliced by bolts on site and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113445537A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518711A (en) * | 2018-12-24 | 2019-03-26 | 熊翱 | A kind of jacket basis of conduit leg column bifurcated and its construction method |
| CN110344431A (en) * | 2019-06-28 | 2019-10-18 | 熊翱 | A kind of jacket and its construction method of belt construction suction tube |
| CN211257053U (en) * | 2019-10-24 | 2020-08-14 | 福建省水利水电勘测设计研究院 | Assembly type suction pile jacket foundation suitable for deep open sea |
| CN211547795U (en) * | 2019-11-29 | 2020-09-22 | 福建省水利水电勘测设计研究院 | Split type suction pile jacket foundation suitable for deep open sea |
| WO2021000604A1 (en) * | 2019-07-01 | 2021-01-07 | 青岛理工大学 | Assembled aluminum pipe, confined concrete and steel pipe combined jacket offshore platform and manufacturing method therefor |
| CN112900472A (en) * | 2021-01-21 | 2021-06-04 | 中国电建集团华东勘测设计研究院有限公司 | High-strength grouting pipe joint jacket foundation for offshore wind power and construction method thereof |
-
2021
- 2021-06-29 CN CN202110728716.3A patent/CN113445537A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518711A (en) * | 2018-12-24 | 2019-03-26 | 熊翱 | A kind of jacket basis of conduit leg column bifurcated and its construction method |
| CN110344431A (en) * | 2019-06-28 | 2019-10-18 | 熊翱 | A kind of jacket and its construction method of belt construction suction tube |
| WO2021000604A1 (en) * | 2019-07-01 | 2021-01-07 | 青岛理工大学 | Assembled aluminum pipe, confined concrete and steel pipe combined jacket offshore platform and manufacturing method therefor |
| CN211257053U (en) * | 2019-10-24 | 2020-08-14 | 福建省水利水电勘测设计研究院 | Assembly type suction pile jacket foundation suitable for deep open sea |
| CN211547795U (en) * | 2019-11-29 | 2020-09-22 | 福建省水利水电勘测设计研究院 | Split type suction pile jacket foundation suitable for deep open sea |
| CN112900472A (en) * | 2021-01-21 | 2021-06-04 | 中国电建集团华东勘测设计研究院有限公司 | High-strength grouting pipe joint jacket foundation for offshore wind power and construction method thereof |
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| 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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210928 |