CN108571005B - Jacket construction process - Google Patents
Jacket construction process Download PDFInfo
- Publication number
- CN108571005B CN108571005B CN201810255814.8A CN201810255814A CN108571005B CN 108571005 B CN108571005 B CN 108571005B CN 201810255814 A CN201810255814 A CN 201810255814A CN 108571005 B CN108571005 B CN 108571005B
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- China
- Prior art keywords
- jacket
- pile
- steel pile
- barge
- steel
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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
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
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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
- E02D27/52—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
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0039—Methods for placing the offshore structure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0039—Methods for placing the offshore structure
- E02B2017/0047—Methods for placing the offshore structure using a barge
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Mechanical Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention relates to a jacket construction process, which is characterized in that: the process comprises the following steps: step 1, driving a jacket to a target position by a barge; step 2, loading ballast water into a ballast tank of the barge to enable the barge to incline for 2-3 degrees; step 3, the jacket slides downwards to the turnover plate; step 4, hoisting; step 5, hoisting the steel pile to a turnover position; step 6, inserting a pile lifter; step 7, a dovetail hook on the tail end of a chain wound on the winch is hooked at the tail of the steel pile; step 8, the crane drives the vertical steel pile to be inserted into the steel pile hole of the jacket through the pile lifter; after sinking for a certain distance under the action of gravity, the steel pile plays a pile driver to separate from the steel pile; and 9, repeating the steps 5-8 until all the steel piles are inserted into the steel pile holes of the jacket. The jacket construction process is extremely convenient to transport and operate.
Description
Technical Field
The invention relates to a jacket construction process, in particular to a process for overturning and installing a jacket and a steel pile in ocean construction.
Background
At present, a jacket needs to be installed in advance in the construction process of ocean wind power and the like, the jacket is large in size and extremely heavy in weight, and if the jacket is transported in a vertical mode, the jacket is difficult to load and unload a ship, and the wind wave resistance in the shipping process is extremely poor, so that the jacket is not beneficial to construction safety; the steel piles are required to be installed for fixing after the jacket is in place, the steel piles of the large jacket often reach hundreds of meters in length, so that the jacket can only be horizontally placed on a deck for transportation, and is turned to the vertical direction after being shipped to a destination, and a pile lifter plugged into the head of the steel pile is required to be used for fixing in the turning process, so that the crane operation is facilitated; however, an effective introduction mode is not available in the installation process of the pile driver, and the pile driver is often driven by a striking mode, so that the efficiency is low, and the safety and the operation normalization are poor.
Disclosure of Invention
The invention aims to overcome the defects and provide a jacket construction process which is extremely convenient to transport and operate.
The purpose of the invention is realized as follows:
a jacket construction process is characterized in that: the process comprises the following steps:
step 1, driving a jacket to a target position by a barge, installing a slideway on a deck of the barge, and transversely placing the jacket on the slideway;
step 2, loading ballast water into a ballast tank of the barge to enable the barge to incline for 2-3 degrees, wherein the large end of the jacket is positioned at the descending end, the small end of the jacket is positioned at the ascending end, meanwhile, the barge is provided with a turnover plate at the large end of the jacket, the middle part of the bottom surface of the turnover plate is hinged with a deck of the barge, one half of the turnover plate is suspended outside the barge, the other half of the turnover plate is placed on the deck, and the top surface of the turnover plate is flush with the surface of the slide way;
step 3, the jacket slides downwards to the turnover plate, four corners of the jacket are respectively dragged by the tugboat through cables, and when the center of gravity of the jacket slides to the suspended end of the turnover plate, the turnover plate turns over to drive the jacket to enter water; the whole process avoids the end parts of the jacket and the deck from being rubbed;
step 4, the crane lifts the small end of the jacket to start to rise, the cables of the two tugboats connected with the small end of the jacket are disconnected, and the ballast tank on the large end of the jacket is loaded with ballast water while the crane rises until the cables connected with the two tugboats are disconnected at the large end of the jacket after the jacket is lifted vertically;
step 5, lifting the steel pile to a turning position, placing the steel pile on a pile turning device, wherein the pile turning device is a turning piece hinged on the tail part of the deck, and a U-shaped groove for embedding the steel pile is formed in the top surface of the turning piece; a through hole is formed in the side wall of the steel pile, the head of a rope penetrates through the through hole and is connected to the head of the pile lifter, and the tail of the rope is connected to the winch after passing through a fixed pulley;
step 6, the winch works, the pile lifter is driven to be completely inserted into the head of the steel pile through the rope, the pile lifter is connected with the steel pile after being inflated by high-pressure gas, and then the rope is disconnected;
step 7, a dovetail hook on the tail end of a chain wound on the winch is hooked at the tail of the steel pile; the hoisting machine works and lifts the pile lifter, and the steel pile is horizontally turned to be vertical from horizontal under the action of the pile turning device;
step 8, the crane drives the vertical steel pile to be inserted into the steel pile hole of the jacket through the pile lifter; after sinking for a certain distance under the action of gravity, the steel pile plays a pile driver to separate from the steel pile;
and 9, repeating the steps 5-8 until all the steel piles are inserted into the steel pile holes of the jacket.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the barge is ballasted in the jacket installation process, so that the barge slides down the jacket after being inclined, thereby not only improving the operation efficiency, but also avoiding the friction on the jacket; meanwhile, in the hoisting and overturning process of the steel pile, the pile lifter is installed in a rope traction mode, so that the damage to the pile lifter and the steel pile is avoided, and the operation is convenient, safe and reliable.
Drawings
Fig. 1 is a schematic diagram of a state of lifting a steel pile in a jacket construction process of the present invention.
Fig. 2 is a schematic view of a state of a steel pile in a jacket construction process according to the present invention when the steel pile is turned over.
Fig. 3 is a partial schematic view of a steel pile during pile insertion in a jacket construction process according to the present invention.
Detailed Description
Referring to fig. 1 to 3, the jacket construction process according to the present invention includes the following steps:
step 1, driving a jacket to a target position by a barge, installing a slideway on a deck of the barge, and transversely placing the jacket on the slideway;
step 2, loading ballast water into a ballast tank of the barge to enable the barge to incline for 2-3 degrees, wherein the large end of the jacket is positioned at the descending end, the small end of the jacket is positioned at the ascending end, meanwhile, the barge is provided with a turnover plate at the large end of the jacket, the middle part of the bottom surface of the turnover plate is hinged with a deck of the barge, one half of the turnover plate is suspended outside the barge, the other half of the turnover plate is placed on the deck, and the top surface of the turnover plate is flush with the surface of the slide way;
step 3, the jacket slides downwards to the turnover plate, four corners of the jacket are respectively dragged by the tugboat through cables, and when the center of gravity of the jacket slides to the suspended end of the turnover plate, the turnover plate turns over to drive the jacket to enter water; the whole process avoids the end parts of the jacket and the deck from being rubbed;
step 4, the crane lifts the small end of the jacket to start to rise, the cables of the two tugboats connected with the small end of the jacket are disconnected, and the ballast tank on the large end of the jacket is loaded with ballast water while the crane rises until the cables connected with the two tugboats are disconnected at the large end of the jacket after the jacket is lifted vertically;
step 5, lifting the steel pile to a turning position, placing the steel pile on a pile turning device, wherein the pile turning device is a turning piece hinged on the tail part of the deck, and a U-shaped groove for embedding the steel pile is formed in the top surface of the turning piece; a through hole is formed in the side wall of the steel pile, the head of a rope penetrates through the through hole and is connected to the head of the pile lifter, and the tail of the rope is connected to the winch after passing through a fixed pulley;
step 6, the winch works, the pile lifter is driven to be completely inserted into the head of the steel pile through the rope, the pile lifter is connected with the steel pile after being inflated by high-pressure gas, and then the rope is disconnected;
step 7, a dovetail hook on the tail end of a chain wound on the winch is hooked at the tail of the steel pile; the hoisting machine works and lifts the pile lifter, and the steel pile is horizontally turned to be vertical from horizontal under the action of the pile turning device;
step 8, the crane drives the vertical steel pile to be inserted into the steel pile hole of the jacket through the pile lifter; after sinking for a certain distance under the action of gravity, the steel pile plays a pile driver to separate from the steel pile;
step 9, repeating the steps 5-8 until all the steel piles are inserted into the steel pile holes of the jacket;
in addition: it should be noted that the above-mentioned embodiment is only a preferred embodiment of the present patent, and any modification or improvement made by those skilled in the art based on the above-mentioned conception is within the protection scope of the present patent.
Claims (1)
1. A jacket construction process is characterized in that: the process comprises the following steps:
step 1, driving a jacket to a target position by a barge, installing a slideway on a deck of the barge, and transversely placing the jacket on the slideway;
step 2, loading ballast water into a ballast tank of the barge to enable the barge to incline for 2-3 degrees, wherein the large end of the jacket is positioned at the descending end, the small end of the jacket is positioned at the ascending end, meanwhile, the barge is provided with a turnover plate at the large end of the jacket, the middle part of the bottom surface of the turnover plate is hinged with a deck of the barge, one half of the turnover plate is suspended outside the barge, the other half of the turnover plate is placed on the deck, and the top surface of the turnover plate is flush with the surface of the slide way;
step 3, the jacket slides downwards to the turnover plate, four corners of the jacket are respectively dragged by the tugboat through cables, and when the center of gravity of the jacket slides to the suspended end of the turnover plate, the turnover plate turns over to drive the jacket to enter water; the whole process avoids the end parts of the jacket and the deck from being rubbed;
step 4, the crane lifts the small end of the jacket to start to rise, the cables of the two tugboats connected with the small end of the jacket are disconnected, and the ballast tank on the large end of the jacket is loaded with ballast water while the crane rises until the cables connected with the two tugboats are disconnected at the large end of the jacket after the jacket is lifted vertically;
step 5, lifting the steel pile to a turning position, placing the steel pile on a pile turning device, wherein the pile turning device is a turning piece hinged on the tail part of the deck, and a U-shaped groove for embedding the steel pile is formed in the top surface of the turning piece; a through hole is formed in the side wall of the steel pile, the head of a rope penetrates through the through hole and is connected to the head of the pile lifter, and the tail of the rope is connected to the winch after passing through a fixed pulley;
step 6, the winch works, the pile lifter is driven to be completely inserted into the head of the steel pile through the rope, the pile lifter is connected with the steel pile after being inflated by high-pressure gas, and then the rope is disconnected;
step 7, a dovetail hook on the tail end of a chain wound on the winch is hooked at the tail of the steel pile; the hoisting machine works and lifts the pile lifter, and the steel pile is horizontally turned to be vertical from horizontal under the action of the pile turning device;
step 8, the crane drives the vertical steel pile to be inserted into the steel pile hole of the jacket through the pile lifter; after sinking for a certain distance under the action of gravity, the steel pile plays a pile driver to separate from the steel pile;
and 9, repeating the steps 5-8 until all the steel piles are inserted into the steel pile holes of the jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810255814.8A CN108571005B (en) | 2018-03-27 | 2018-03-27 | Jacket construction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810255814.8A CN108571005B (en) | 2018-03-27 | 2018-03-27 | Jacket construction process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108571005A CN108571005A (en) | 2018-09-25 |
| CN108571005B true CN108571005B (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810255814.8A Active CN108571005B (en) | 2018-03-27 | 2018-03-27 | Jacket construction process |
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| CN (1) | CN108571005B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109629568A (en) * | 2018-12-30 | 2019-04-16 | 中交第三航务工程局有限公司江苏分公司 | The process for sinking of the steady stake platform of offshore wind farm jacket foundation steel pipe pile floating |
| CN109775632B (en) * | 2019-02-20 | 2020-12-08 | 海洋石油工程（青岛）有限公司 | Process for turning over and hoisting whole jacket axis |
| CN112982399A (en) * | 2021-02-05 | 2021-06-18 | 保利长大工程有限公司 | Pile sinking construction method for fixed-arm type frame crane ship |
| CN113463644B (en) * | 2021-07-07 | 2023-04-18 | 中交第一航务工程局有限公司 | Suspension mounting method for suction pile jacket |
| CN113638416A (en) * | 2021-07-23 | 2021-11-12 | 江苏华西村海洋工程服务有限公司 | Underwater guide frame construction process |
| CN115367075A (en) * | 2022-09-13 | 2022-11-22 | 中交第三航务工程局有限公司江苏分公司 | Olecranon hook pile turning method for offshore wind power engineering jacket foundation in deep sea area |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4575061B2 (en) * | 2004-07-23 | 2010-11-04 | 第一建設機工株式会社 | Construction method for offshore wind power generation facilities |
| CN102312438A (en) * | 2010-07-02 | 2012-01-11 | 南通市海洋水建工程有限公司 | Piling construction equipment for large steel pipe piles of seaborn intertidal zone wind power station |
| CN202745060U (en) * | 2012-08-27 | 2013-02-20 | 天津海德天润海上工程技术有限公司 | Overwater pile-lifting turning mechanism suitable for underwater ultra-long steel pile of deepwater wellhead platform jacket |
| CN205369230U (en) * | 2016-01-20 | 2016-07-06 | 中铁隆工程集团有限公司 | Anti -floating pile and underwater concrete tongue -and -groove coupling mechanism |
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| Publication number | Publication date |
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| CN108571005A (en) | 2018-09-25 |
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