CN106759203A - Self-elevating ocean platform pile leg structure installs the method closed up - Google Patents
Self-elevating ocean platform pile leg structure installs the method closed up Download PDFInfo
- Publication number
- CN106759203A CN106759203A CN201611199100.7A CN201611199100A CN106759203A CN 106759203 A CN106759203 A CN 106759203A CN 201611199100 A CN201611199100 A CN 201611199100A CN 106759203 A CN106759203 A CN 106759203A
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- China
- Prior art keywords
- hull
- spud
- platform
- spud leg
- leg
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Underground Or Underwater Handling Of Building Materials (AREA)
Abstract
The method closed up is installed the present invention relates to a kind of self-elevating ocean platform pile leg structure, process is：S1：By hull support on overhead pier, the height of hull bottom to ground is segmented more than single-stage spud leg；S2：Based on hull, in depressed place or building berth first installs two or three spud legs segmentation for closing up top using crane；S3：For the mounted spud legs of step S2, jacking system to lifting foundation structure is installed；S4：Mounted spud leg is lifted by the jacking system, hull bottom is left room, next spud leg segmentation push-in hull lower section for treating that group is vertical is carried out into abutting joint；S5：Repeat step S4, is segmented abutting joints and finishes to all spud legs；S6：The overhead pier in platform main hull lower section is removed, decline main hull using the elevating mechanism of platform itself prepares to undock or lower water to desired height.It is contemplated that reducing task difficulty and production cost, platform service life is improved, shorten construction period.
Description
Technical field
The method closed up is installed the present invention relates to a kind of self-elevating ocean platform pile leg structure.
Background technology
In the construction of jack-up unit, no matter the installation of spud leg all occupies significant proportion from cycle, equipment and cost.Stake
The set-up time of leg often determines the construction period of whole platform, and because spud leg height is high, always jack up sea is closed up in installation
Foreign platform construction difficult point.Traditional installation folding method is to be divided into 15~30 meters of sectional constructions first, is then closed respectively
Hold together and be attached to self-elevating ocean platform, but because build the side crane hangs limitation high, jack-up unit undock or lower water before can only
Installation close up bottom 2-3 section segmentation, remaining spud leg segmentation need to undock or lower water after using large-scale floating crane or rise ship connect
Stake mode is closed up.The resource of large-scale floating crane is restricted and use cost is high, and rising ship pile extension needs supporting large-scale tooling device,
Self-elevating ocean platform needs multiple lift work during construction, influences other constructions and debugging, and long construction period.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of reduction task difficulty and production cost, improves platform and uses the longevity
Life, the self-elevating ocean platform spud leg for shortening construction period installs the method closed up.
In order to solve the above-mentioned technical problem, self-elevating ocean platform spud leg of the invention installs the method closed up, and makes first
The standby spud leg for treating that group is vertical is segmented and sets the hull of lifting foundation structure, and subsequent process is：
S1：By hull support on overhead pier, the height of hull bottom to ground is segmented more than single-stage spud leg.Be higher by away from
From the height being segmented slightly larger than single-stage spud leg, under preferred embodiment, no more than the height that two-stage spud leg is segmented.
S2：Based on hull, in depressed place or building berth first installs two or three spud legs segmentation for closing up top using crane.
S3：For the mounted spud legs of step S2, jacking system to the lifting foundation structure is installed.
S4：Mounted spud leg is lifted by the jacking system, hull bottom is left room, treat that group is vertical by next
Spud leg segmentation push-in hull lower section carry out abutting joint.
S5：Repeat step S4, is segmented abutting joints and finishes to all spud legs.
S6：Remove the overhead pier in platform main hull lower section, main hull is declined to requiring using the elevating mechanism of platform itself
Highly prepare to undock or lower water.
Self-elevating ocean platform spud leg of the invention installs the method closed up and not only eliminates Large marine crane barge and complexity
Tooling device, improve the service life after platform is paid, while avoiding the construction of substantial amounts of high-altitude and operation on the sea, reduce
Danger, it is to avoid construction delay caused by marine bad weather, has saved production cost.
Brief description of the drawings
Fig. 1 is self-elevating ocean platform spud leg schematic diagram.
Fig. 2 closes up overhead pier paving pier top view in depressed place for platform main hull.
Fig. 3 is that platform main hull closes up overhead pier paving pier Section A-A sectional view in depressed place in Fig. 2.
The schematic diagram that Fig. 4 closes up for two spud legs segmentation lifting installation from top to down of platform top.
Fig. 5 is platform hoist system scheme of installation
Fig. 6 is the schematic diagram that spud leg segmentation and spud leg segmental slipping to be closed up have been closed up in platform hoist system lifting.
Fig. 7 is that schematic diagram is closed up in the segmentation installation of platform leg the 5th.
Fig. 8 is that the schematic diagram for closing up completion is all installed in certain platform leg and shoe.
Fig. 9 is that the overhead pier of platform is removed, drop platform to undocking/schematic diagram of lower water state.
In figure：1, main hull；2, overhead big and heavy stone；3, lift foundation structure；4, jacking system；5, drag slideway；6, shoe；7,
Suspension hook；8, hoist cable.
Specific embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by specific embodiment.
As shown in figure 1, each spud leg of certain jack-up unit is divided into 7 sectional constructions, respectively G1~G7 from bottom to top,
About 26 meters of the maximum height of spud leg segmentation.As shown in Figures 2 and 3, platform in depressed place or building berth build when, main hull 1 and lifting
Foundation structure 3 closes up shaping on overhead big and heavy stone 2, is more than the bottom surface of main hull 1 distance from the ground when laying overhead big and heavy stone 2 and waits to close up
Spud leg section length certain distance is in order to operate.
Specific installation be divided into following steps when closing up：
S1：Such as Fig. 4, according to building berth or dock hoisting power elder generation, using equipment such as suspension hook 7, hoist cables 8 by the spud leg of top
It is segmented Section of six G6 and spud leg and is segmented Section of seven G7 and lifts installation successively using crane from the top down and closes up.
S2：Such as Fig. 5, after Section of seven G7 of spud leg Section of six G6 of segmentation and spud leg segmentation closes up, jacking system 4 to lifting is installed
Foundation structure 3 is simultaneously debugged.
S3：Such as Fig. 6, segmentation spud leg G6, the G7 for having installed and having closed up are lifted using the jacking system 4 of platform itself, will wait to close
Hold together spud leg to be segmented Section five G5 slideway 5 is traversing to be aligned to having closed up pile leg structure lower section and positioned using dragging.As shown in fig. 7,
Spud leg segmentation G6, G7 is now closed up and lower section spud leg segmentation G5 to be closed up has had certain interval.
S4：Decline and adjust spud leg segmentation G6, the G7 for having closed up using jacking system 4 and be segmented Section five with spud leg to be closed up
G5 is docked.
S5：As shown in figure 8, take same method, gradually complete remaining spud leg be segmented Section of four G4, Section of three G3,
Welding is closed up in second section G2, first segment G1 and shoe 6, and between shoe 6 and ground preferred place mat sandbag makes shoe close with ground
Cut-grafting is touched.
S6：As shown in figure 9, removing the overhead pier 2 in the lower section of platform main hull 1, the elevating mechanism 4 using platform itself declines master
Hull 1 prepares to undock or lower water to desired height.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any one skilled in the art in the technical scope of present disclosure, technology according to the present invention scheme and its
Inventive concept is subject to equivalent or change, should all be included within the scope of the present invention.
Claims (1)
1. a kind of self-elevating ocean platform pile leg structure installs the method closed up, and the spud leg segmentation and set for treating that group is vertical are prepared first
The hull (1) of lifting foundation structure (3)；Characterized in that, subsequent process is：
S1：Hull (1) is supported on overhead pier (2), the height of hull (1) bottom to ground is segmented more than single-stage spud leg；
S2：Based on hull (1), in depressed place or building berth first installs two or three spud legs segmentation for closing up top using crane；
S3：For the mounted spud legs of step S2, jacking system (4) to lifting foundation structure (3) is installed；
S4：Mounted spud leg is lifted by the jacking system (4), hull bottom is left room, treat that group is vertical by next
Spud leg segmentation push-in hull lower section carry out abutting joint；
S5：Repeat step S4, is segmented abutting joints and finishes to all spud legs；
S6：The overhead pier (2) in platform main hull (1) lower section is removed, the elevating mechanism (4) using platform itself declines main hull (1)
Prepare to undock or lower water to desired height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611199100.7A CN106759203A (en) | 2016-12-22 | 2016-12-22 | Self-elevating ocean platform pile leg structure installs the method closed up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611199100.7A CN106759203A (en) | 2016-12-22 | 2016-12-22 | Self-elevating ocean platform pile leg structure installs the method closed up |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106759203A true CN106759203A (en) | 2017-05-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611199100.7A Pending CN106759203A (en) | 2016-12-22 | 2016-12-22 | Self-elevating ocean platform pile leg structure installs the method closed up |
Country Status (1)
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| CN (1) | CN106759203A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537555A (en) * | 2018-09-25 | 2019-03-29 | 武汉船用机械有限责任公司 | A kind of self-elevating ocean platform |
| CN110171783A (en) * | 2019-05-13 | 2019-08-27 | 中国电建集团山东电力建设第一工程有限公司 | A kind of tower boiler hoisting of slab beam method |
| CN112077469A (en) * | 2020-08-25 | 2020-12-15 | 广东工业大学 | Method for continuously preheating and welding and installing giant maritime work pile leg in field and in multiple sections |
| CN116620515A (en) * | 2023-07-19 | 2023-08-22 | 中船黄埔文冲船舶有限公司 | Mounting, positioning and folding method for lifting foundation of self-elevating type working platform |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5941507A (en) * | 1982-08-31 | 1984-03-07 | Mitsui Eng & Shipbuild Co Ltd | Assembly of leg for high-level landing type vertically movable working platform |
| US4854778A (en) * | 1987-09-04 | 1989-08-08 | Cameron Iron Works Usa, Inc. | Caisson tower platform and method of setting same |
| CN105586864A (en) * | 2015-11-30 | 2016-05-18 | 中国国际海运集装箱(集团)股份有限公司 | Method for folding self-lifting-type platform truss-type pile legs |
| CN105692449A (en) * | 2016-03-22 | 2016-06-22 | 中交第二航务工程勘察设计院有限公司 | Method for spud leg lengthening and folding of self-elevating drilling platform |
-
2016
- 2016-12-22 CN CN201611199100.7A patent/CN106759203A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5941507A (en) * | 1982-08-31 | 1984-03-07 | Mitsui Eng & Shipbuild Co Ltd | Assembly of leg for high-level landing type vertically movable working platform |
| US4854778A (en) * | 1987-09-04 | 1989-08-08 | Cameron Iron Works Usa, Inc. | Caisson tower platform and method of setting same |
| CN105586864A (en) * | 2015-11-30 | 2016-05-18 | 中国国际海运集装箱(集团)股份有限公司 | Method for folding self-lifting-type platform truss-type pile legs |
| CN105692449A (en) * | 2016-03-22 | 2016-06-22 | 中交第二航务工程勘察设计院有限公司 | Method for spud leg lengthening and folding of self-elevating drilling platform |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537555A (en) * | 2018-09-25 | 2019-03-29 | 武汉船用机械有限责任公司 | A kind of self-elevating ocean platform |
| CN110171783A (en) * | 2019-05-13 | 2019-08-27 | 中国电建集团山东电力建设第一工程有限公司 | A kind of tower boiler hoisting of slab beam method |
| CN112077469A (en) * | 2020-08-25 | 2020-12-15 | 广东工业大学 | Method for continuously preheating and welding and installing giant maritime work pile leg in field and in multiple sections |
| CN116620515A (en) * | 2023-07-19 | 2023-08-22 | 中船黄埔文冲船舶有限公司 | Mounting, positioning and folding method for lifting foundation of self-elevating type working platform |
| CN116620515B (en) * | 2023-07-19 | 2023-11-03 | 中船黄埔文冲船舶有限公司 | Mounting, positioning and folding method for lifting foundation of self-elevating type working platform |
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Application publication date: 20170531 |
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