CN112722161A - Low-cost launching construction process for jacket - Google Patents

Low-cost launching construction process for jacket Download PDF

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Publication number
CN112722161A
CN112722161A CN202110122600.5A CN202110122600A CN112722161A CN 112722161 A CN112722161 A CN 112722161A CN 202110122600 A CN202110122600 A CN 202110122600A CN 112722161 A CN112722161 A CN 112722161A
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CN
China
Prior art keywords
jacket
ship body
launching
cost
low
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
Application number
CN202110122600.5A
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Chinese (zh)
Inventor
张仁干
黄俊宏
陆亚军
张天治
吴建亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Huaxi Zhiyun Engineering Technology Co ltd
Original Assignee
Jiangsu Huaxi Zhiyun Engineering Technology Co ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Jiangsu Huaxi Zhiyun Engineering Technology Co ltd filed Critical Jiangsu Huaxi Zhiyun Engineering Technology Co ltd
Priority to CN202110122600.5A priority Critical patent/CN112722161A/en
Publication of CN112722161A publication Critical patent/CN112722161A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/24—Means for preventing unwanted cargo movement, e.g. dunnage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/14—Arrangement of ship-based loading or unloading equipment for cargo or passengers of ramps, gangways or outboard ladders ; Pilot lifts
    • B63B27/143—Ramps
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Paleontology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)

Abstract

The invention relates to a jacket low-cost launching construction process which is realized based on a jacket launching device, wherein the jacket launching device comprises a ship body (1) with a U-shaped left half part, a winch (2) arranged on the ship body (1) and an anchor system (3); a slope (4) is arranged at the bottom of the U-shaped structure of the ship body (1); the construction process comprises the following construction steps: the method comprises the following steps of jacket loading, transportation, jacket launching installation and hull separation. The low-cost launching construction process for the jacket has the advantages of simple construction operation steps, no need of a large barge and a large floating crane ship to participate in construction, short installation period and high efficiency, and greatly reduces the transportation cost and the installation construction cost of the jacket.

Description

Low-cost launching construction process for jacket
Technical Field
The invention relates to a low-cost launching construction process for a jacket, and belongs to the technical field of offshore wind power installation construction.
Background
With the continuous development of offshore wind power, offshore wind power projects gradually develop towards farther offshore and deeper water depth. In a deep-water wind power plant, a steel pipe pile foundation is generally erected on the sea bottom, a jacket is installed on the pipe pile foundation, a tower cylinder is installed on the jacket, and then a wind turbine generator and other equipment are installed. Because the jacket has larger size, the jacket can only be transported to a construction sea area from a wharf through a large barge at present and then hoisted for construction through a large floating crane ship, the transportation cost is higher, the installation and construction cost is higher, the construction period is longer, and the construction window period of a deep sea wind power plant is shorter, so the development of deep sea wind power is limited.
Disclosure of Invention
The invention aims to overcome the defects and provide the high-efficiency jacket launching process which has the advantages of low transportation cost, low installation cost and short construction period of the jacket and can meet the requirements of deep sea wind power installation and construction.
The purpose of the invention is realized as follows:
a jacket low-cost launching construction process is realized based on a jacket launching device, wherein the jacket launching device comprises a ship body, a winch and an anchor system, wherein the left half part of the ship body is in a U-shaped structure; a slope is arranged at the bottom of the U-shaped structure of the ship body;
the low-cost launching construction process of the jacket comprises the following construction steps:
step 1, jacket boarding: the ship body is parked at a wharf, and the anchoring system controls the ship body to be stable; the wharf crane lifts and lays the jacket on the right half part of the ship body, so that the gravity center of the jacket is ensured to be on the right side of the slope; connecting a traction cable on the winch with the jacket through a guide device arranged on the ship body, and tightening the traction cable to fix the position of the jacket;
step 2, transportation: after the jacket is arranged on the ship body, the ship body is towed to a construction sea area by a tugboat;
step 3, jacket launching installation: after the ship body is in place, firstly, the anchoring system is thrown by the anchor throwing ship, so that the position of the ship body is stable; the winch controls the traction cables to pull the jacket to slide leftwards, when the gravity center of the jacket reaches a slope, the traction cables are controlled to enable the jacket to smoothly rotate and lean against the slope to slowly slide downwards into water, and when the gravity center of the jacket is separated from the slope, the traction cables are controlled to enable the jacket to be converted into a vertical state and slowly fall to the seabed pipe pile; the positioning device arranged at the bottom of the jacket feeds back the deviation degree of the bottom position of the jacket and the interface of the submarine tubular pile in real time, and the anchor system adjusts the position of the ship body in real time according to positioning feedback data to ensure that the jacket and the submarine tubular pile are smoothly butted and installed;
step 4, separating the ship body: after the jacket is installed, the traction cable and the positioning device are detached from the jacket, the anchor system adjusts the position of the ship body, the ship body is separated from the jacket from the U-shaped opening of the U-shaped structure, and launching installation construction operation of the jacket is completed.
According to the low-cost launching construction process for the jacket, the launching roller way which is beneficial to sliding of the jacket is arranged on the slope.
The invention relates to a jacket low-cost launching construction process, wherein a horizontal roller way is arranged on the ship surface of the right half part of a ship body, and a jacket is horizontally laid on the horizontal roller way in the step 2.
The invention relates to a low-cost launching construction process of a jacket, wherein a tension sensor for monitoring tension of a traction cable is arranged on a ship body.
The invention relates to a low-cost launching construction process for a jacket.
The offshore transportation and offshore installation of the wind power jacket are seamlessly connected, a large barge and a large floating crane ship are not needed to participate in construction, the transportation cost and the installation construction cost of the jacket are greatly reduced, the operation steps are simple, the construction period is short, and the efficiency is high.
Compared with the prior art, the invention has the beneficial effects that:
the wind power jacket is tightened and fixed on the U-shaped hull through the traction cable for transportation, the traction cable is controlled to enable the jacket to sequentially translate, slide downwards on the slope of the hull and vertically sink after being separated from the hull, the field hoisting of the jacket is realized, the construction operation steps are simple, a large barge and a large floating crane ship are not required to participate in construction, the installation period is short, the efficiency is high, and the transportation cost and the installation construction cost of the jacket are greatly reduced.
Drawings
Fig. 1 is a schematic front view of a jacket in transportation according to a low-cost launching construction process of the jacket of the present invention.
Fig. 2 is a schematic top view of a jacket in transportation according to a low-cost launching process of the jacket of the present invention.
Fig. 3 is a schematic structural view of a jacket in front view during installation of the jacket in the low-cost launching construction process of the jacket of the present invention.
Fig. 4 is a schematic top view of a jacket in a low-cost launching process of the jacket according to the present invention.
Wherein:
a jacket 101;
the device comprises a ship body 1, a winch 2, an anchor system 3, a slope 4, a traction cable 5, a guiding device 6, a positioning device 7, a launching roller way 8 and a horizontal roller way 9.
Detailed Description
Referring to fig. 1 to 4, the jacket low-cost launching construction process is realized based on a jacket launching device, and the jacket launching device comprises a hull 1, a winch 2 and an anchor system 3, wherein the left half part of the hull 1 is in a U-shaped structure; a slope 4 is arranged at the bottom of the U-shaped structure of the ship body 1;
the low-cost launching construction process of the jacket comprises the following construction steps:
step 1, jacket boarding: the ship body 1 is docked at a wharf, and the anchor system 3 controls the ship body 1 to be stable; the wharf crane hoists the jacket 101 to lie on the right half part of the ship body 1, so that the gravity center of the jacket 101 is ensured to be positioned on the right side of the slope 4; connecting a traction cable 5 on the winch 2 with a jacket 101 through a guide device 6 arranged on the ship body 1, and tightening the traction cable 5 to fix the position of the jacket;
step 2, transportation: after the jacket 101 is installed on the ship body 1, the ship body 1 is towed to a construction sea area by a tugboat;
step 3, jacket launching installation: after the ship body 1 is in place, the anchor system 3 is thrown well by the anchor throwing boat, so that the position of the ship body 1 is stable; the winch 2 controls the traction cables 5 to pull the jacket 101 to slide leftwards, when the gravity center of the jacket 101 reaches the slope 4, the traction cables 5 are controlled to enable the jacket 101 to smoothly rotate and lean against the slope 4 to slowly slide downwards into the water, and when the gravity center of the jacket 101 is separated from the slope 4, the traction cables 5 are controlled to enable the jacket 101 to be in a vertical state and slowly fall to the seabed tubular pile; the positioning device 7 arranged at the bottom of the jacket 101 feeds back the deviation degree of the bottom position of the jacket 101 and the interface of the seabed pipe pile in real time, and the anchor system 3 adjusts the position of the ship body 1 in real time according to positioning feedback data to ensure that the jacket 101 and the seabed pipe pile are smoothly butted and installed;
step 4, separating the ship body: after the jacket 101 is installed, the traction cable 5 and the positioning device 7 are detached from the jacket 101, the anchor system 3 adjusts the position of the ship body 1, so that the ship body 1 is separated from the jacket 101 from the U-shaped opening of the U-shaped structure, and the underwater installation construction operation of the jacket 101 is completed.
Further, a launching roller way 8 which is beneficial to the sliding of the jacket 101 is arranged on the slope 4.
Further, a horizontal roller way 9 is arranged on the ship surface of the right half part of the ship body 1, and in the step 2, the jacket 101 is horizontally laid on the horizontal roller way 9.
Further, a tension sensor for monitoring the tension of the traction cable 5 is mounted on the ship body 1.
Further, the positioning device 7 at the bottom of the jacket 101 is an underwater camera or a sonar detector.
The offshore transportation and offshore installation of the wind power jacket are seamlessly connected, a large barge and a large floating crane ship are not needed to participate in construction, the transportation cost and the installation construction cost of the jacket are greatly reduced, the operation steps are simple, the construction period is short, and the efficiency is high.
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 (5)

1. The low-cost launching construction process of the jacket is characterized in that: the jacket low-cost launching construction process is realized based on a jacket launching device, wherein the jacket launching device comprises a ship body (1) with a U-shaped left half part, a winch (2) arranged on the ship body (1) and an anchor system (3); a slope (4) is arranged at the bottom of the U-shaped structure of the ship body (1);
the low-cost launching construction process of the jacket comprises the following construction steps:
step 1, jacket boarding: the ship body (1) is parked at a wharf, and the anchoring system (3) controls the ship body (1) to be stable; the wharf crane hoists the jacket (101) to lie on the right half part of the ship body (1) horizontally, so that the gravity center of the jacket (101) is ensured to be positioned on the right side of the slope (4); connecting a traction cable (5) on a winch (2) with a jacket (101) through a guide device (6) arranged on a ship body (1), and tightening the traction cable (5) to fix the position of the jacket;
step 2, transportation: after the jacket (101) is arranged on the ship body (1), the ship body (1) is towed to a construction sea area by a tugboat;
step 3, jacket launching installation: after the ship body (1) is in place, the anchor system (3) is thrown by the anchor throwing boat, so that the position of the ship body (1) is stable; the winch (2) controls the traction cables (5) to pull the jacket (101) to slide leftwards, when the gravity center of the jacket (101) reaches the slope (4), the traction cables (5) are controlled to enable the jacket (101) to smoothly rotate and lean against the slope (4) to slowly slide downwards into the water, and when the gravity center of the jacket (101) is separated from the slope (4), the traction cables (5) are controlled to enable the jacket (101) to be in a vertical state and slowly fall to the seabed pipe pile; the positioning device (7) arranged at the bottom of the jacket (101) feeds back the deviation degree of the bottom position of the jacket (101) and the interface of the seabed pipe pile in real time, and the anchor system (3) adjusts the position of the ship body (1) in real time according to positioning feedback data to ensure that the jacket (101) and the seabed pipe pile are smoothly butted and installed;
step 4, separating the ship body: after the jacket (101) is installed, the traction cable (5) and the positioning device (7) are detached from the jacket (101), the position of the ship body (1) is adjusted by the anchor system (3), the ship body (1) is separated from the jacket (101) from the U-shaped opening of the U-shaped structure, and the underwater installation construction operation of the jacket (101) is completed.
2. The jacket low-cost launching construction process according to claim 1, characterized in that: and a launching roller way (8) which is beneficial to the sliding of the jacket (101) is arranged on the slope (4).
3. The jacket low-cost launching construction process according to claim 1, characterized in that: a horizontal roller way (9) is arranged on the ship surface of the right half part of the ship body (1), and the jacket (101) in the step 2 is horizontally laid on the horizontal roller way (9).
4. The jacket low-cost launching construction process according to claim 1, characterized in that: and a tension sensor for monitoring the tension of the traction cable (5) is arranged on the ship body (1).
5. The jacket low-cost launching construction process according to claim 1, characterized in that: the positioning device (7) at the bottom of the jacket (101) is an underwater camera or a sonar detector.
CN202110122600.5A 2021-01-29 2021-01-29 Low-cost launching construction process for jacket Pending CN112722161A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110122600.5A CN112722161A (en) 2021-01-29 2021-01-29 Low-cost launching construction process for jacket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110122600.5A CN112722161A (en) 2021-01-29 2021-01-29 Low-cost launching construction process for jacket

Publications (1)

Publication Number Publication Date
CN112722161A true CN112722161A (en) 2021-04-30

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Application Number Title Priority Date Filing Date
CN202110122600.5A Pending CN112722161A (en) 2021-01-29 2021-01-29 Low-cost launching construction process for jacket

Country Status (1)

Country Link
CN (1) CN112722161A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113323006A (en) * 2021-05-28 2021-08-31 福建永福电力设计股份有限公司 Auxiliary device and method for assembling offshore wind power suction pile and jacket

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113323006A (en) * 2021-05-28 2021-08-31 福建永福电力设计股份有限公司 Auxiliary device and method for assembling offshore wind power suction pile and jacket

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