CN105401577B - Suction type shoe and installation method suitable for self elevating platform - Google Patents
Suction type shoe and installation method suitable for self elevating platform Download PDFInfo
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- CN105401577B CN105401577B CN201410456301.5A CN201410456301A CN105401577B CN 105401577 B CN105401577 B CN 105401577B CN 201410456301 A CN201410456301 A CN 201410456301A CN 105401577 B CN105401577 B CN 105401577B
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Abstract
The present invention relates to a kind of suction type shoe suitable for self elevating platform and installation method, suction type shoe includes top blind flange, main gusset, stiffener plate, upper lateral plate, top peripheral plate, bottom loading plate, skirtboard main gusset, skirtboard stiffener plate, lower, transverse plate, lower periphery skirtboard and water injection pipe, by setting skirtboard in the shoe bottom of UFO-shape structure, form cylinder base suction type structure, utilize suction type pile foundation mounting technique and its feature, simplify the installation of shoe, effectively increase shoe bearing capacity, there is certain friction pile ability in shallow soil layer, simultaneously, pass through the cavity water-filling to bottom pile foundation, certain upward jack-up power is provided, effectively reduce pile pulling difficulty.
Description
Technical field
It is applied to self elevating platform shoe and installation method the present invention relates to one kind, especially in marginal oil field and short
The suction type shoe for the jack-up unit that phase migration is used and installation method.
Background technology
Marine jack-up unit is the most frequently used a kind of production equipment in Offshore Oil Industry.Its advantage is can be voluntarily
Raising is landed, and is hardly limited by conditions such as landform, and installation period is short, is gone into operation fast, according to different oil-gas field developments
It is required that, the facilities such as different productions, life can be configured, equipment efficiency of usage is high, and adaptability is big, be offshore oil production system
An essential part in system.
Marine jack-up unit generally uses the shoe of UFO-shape structure, and its primary structure includes top blind flange, outside arc
Coaming plate, internal bearing rib and bottom loading plate, by being welded with spud leg, possess independent watertight structure, can be not only platform
Support is provided, certain ballast ability is also equipped with.But this common shoe needs to be pressed into depth certain in sea bed, in order to up to
To the requirement of reliable bearing capacity, platform needs multiple injection/discharge ballast, and the operating time is long.On the harder sea bed of soil property,
Common shoe bottom lifting surface area is big, integrally enters that mud is shallower, and horizontal resistant slide resistance is small, under certain wind wave action, puts down
Integral slipping, i.e. sliding pile easily occur for platform.Meanwhile, shoe needs the buoyancy using platform itself during pile pulling, utilizes
The pile pulling ability of lowering or hoisting gear extracts shoe, and power consumption is big, single pile can only operate successively, risk is larger.
Present patent application exactly proposes the structural type of the suction type shoe suitable for self elevating platform in this context
Formula and installation method.
The content of the invention
It is a primary object of the present invention to provide a kind of suction type shoe suitable for self elevating platform and installation method, lead to
Cross and skirtboard is set in shoe bottom, form cylinder base suction type structure, using suction type pile foundation mounting technique and its feature, simplify
The installation of shoe, effectively increase shoe bearing capacity, there is certain friction pile ability in shallow soil layer；Simultaneously by bottom pile foundation
Cavity water-filling there is provided certain upward jack-up power, effectively reduction pile pulling difficulty.
The purpose of the present invention is realized by following technical scheme：
Suitable for the suction type shoe of self elevating platform, include top blind flange, main gusset, stiffener plate, upper lateral
Plate, top peripheral plate, bottom loading plate, skirtboard main gusset, skirtboard stiffener plate, lower, transverse plate, lower periphery skirtboard and note
Drainpipe, it is characterised in that the top blind flange is located at the top of the bottom loading plate, and the top blind flange, the bottom are held
Support plate is provided centrally with center hole, and spud leg is welded to connect by the center hole of the top blind flange with the top blind flange,
The spud leg is welded to connect by the center hole of the bottom loading plate with the bottom loading plate；The top blind flange, institute
State bottom loading plate avris and be provided with avris circular hole, avris circular hole and institute of the water injection pipe top by the top blind flange
State top blind flange to be welded to connect, the water injection pipe bottom is carried by the avris circular hole of the bottom loading plate with the bottom
Plate weld, port and the suction pile of the water injection pipe are installed sled block and are connected, in piling from the interior discharge lower periphery skirt
The seawater that plate is surrounded, accelerates the sinking of shoe, until the driving depth of design requirement, injects described in pile pulling by outside seawater
Inside lower periphery skirtboard, certain withdrawal resistance, the pile pulling power requirement of reduction lowering or hoisting gear and power consumption are produced；The top
Circumferentially replace between cover plate bottom and the bottom loading plate top and be uniformly arranged the main gusset and the stiffener plate,
Main ribs plate inner end is welded to connect with the spud leg, and the upper lateral plate, the master are provided between main ribs plate
Gusset sidepiece is welded to connect with the upper lateral plate end, in the stiffener plate inner end and upper lateral plate outside
Portion is welded to connect, under the upper end of main ribs plate, the stiffener plate and the upper lateral plate and the top blind flange
Portion is welded to connect, the bottom of main ribs plate, the stiffener plate and the upper lateral plate and the bottom loading plate
Upper weld is connected, and the outer end of main ribs plate and the stiffener plate is connected with the top peripheral plate weld；Under described
Portion's loading plate has circumferentially alternately been uniformly arranged in the skirtboard main gusset and the skirtboard stiffener plate, the skirtboard main gusset
End is welded to connect with the spud leg, and the lower, transverse plate, the skirtboard main gusset are provided between the skirtboard main gusset
Sidepiece is welded to connect with the lower, transverse plate end, in the skirtboard stiffener plate inner end and lower, transverse plate outside
Portion is welded to connect, upper end and the bottom of the skirtboard main gusset, the skirtboard stiffener plate and the lower, transverse plate
The lower weld connection of loading plate, the outer end and the lower periphery skirt of the skirtboard main gusset and the skirtboard stiffener plate
Plate weld is connected, and the upper end of the lower periphery skirtboard is connected with the lower weld of the bottom loading plate.
The skirtboard main gusset, the skirtboard stiffener plate and the lower, transverse plate and main ribs plate, the reinforcement
The position of gusset and the upper lateral plate is corresponded.
Suitable for the installation method of the suction type shoe of self elevating platform, comprise the following steps：
(1) platform on-station position soil property is determined, the attached framework of underwater obstacle and influence stage+module is removed, to sea bed
The gradient be more than 3 ‰ part need take dredge it is levelling；
(2) platform towage reaches raising position, casts anchor in place；
(3) start lowering or hoisting gear and decline spud leg, until touching mud can not continue to decline；
(4) suction pile injection sled block is installed, coordinates lowering or hoisting gear action, injection is carried out to bucket foundation, until can not
Sedimentation, removes sled block；
(5) lift bench is higher by about 1m height to bottom from high tide level, and with 1.1 times of load of pile crown power, ballast water is noted
In the ballast tank for entering setting；
(6) ballast lock pressure full water to shoe is no longer settled, you can carry out next step operation；
(7) ballast water is drained, lift bench locks jacking system to job requirement height；
(8) process equipment is debugged, and realization is put into operation.
Beneficial effects of the present invention：The present invention is due to using above-mentioned technical proposal, by setting skirtboard, shape in shoe bottom
Into cylinder base suction type structure, using suction type pile foundation mounting technique and its feature, the installation of shoe is simplified, effectively increases shoe
Bearing capacity, there is certain friction pile ability in shallow soil layer；Simultaneously by the cavity water-filling to bottom pile foundation there is provided it is certain to
Upper jack-up power, effectively reduction pile pulling difficulty.
The present invention will be further described with reference to the accompanying drawings and examples.
Brief description of the drawings：
Fig. 1 is axonometric drawing of the present invention；
Fig. 2 is profilograph of the present invention.
Major Symbol explanation in figure：
1-spud leg；2-upper lateral plate；3-top blind flange；4-main gusset；5-stiffener plate；6-bottom is carried
Plate；7-top peripheral plate；8-lower periphery skirtboard；9-skirtboard stiffener plate；10-skirtboard main gusset；11-lower, transverse
Plate；12-water injection pipe.
Embodiment
Below in conjunction with the accompanying drawings and example, the present invention is described in detail.
As shown in Figure 1-2, the present invention include top blind flange 3, main gusset 4, stiffener plate 5, upper lateral plate 2, outside top
Coaming plate 7, bottom loading plate 6, skirtboard main gusset 10, skirtboard stiffener plate 9, lower, transverse plate 11, lower periphery skirtboard 8 and note row
Water pipe 12, top blind flange 3 is located at the top of bottom loading plate 6, and top blind flange 3, bottom loading plate 6 are provided centrally with center circle
Hole, spud leg 1 is welded to connect by the center hole of top blind flange 3 with top blind flange 3, the center that spud leg 1 passes through bottom loading plate 6
Circular hole is welded to connect with bottom loading plate 6；Top blind flange 3, the avris of bottom loading plate 6 are provided with avris circular hole, water injection pipe 12
Top is welded to connect by the avris circular hole of top blind flange 3 with top blind flange 3, and the bottom of water injection pipe 12 passes through bottom loading plate 6
Avris circular hole welded with bottom loading plate 6, the port of water injection pipe 12 and suction pile are installed sled block and are connected, in piling from interior
The seawater that lower periphery skirtboard 8 is surrounded is discharged, accelerates the sinking of shoe, until the driving depth of design requirement, will in pile pulling
Inside outside seawater injection lower periphery skirtboard 8, certain withdrawal resistance, the pile pulling power requirement of reduction lowering or hoisting gear and power are produced
Consumption；Circumferentially replace between the bottom of top blind flange 3 and the top of bottom loading plate 6 and be uniformly arranged main gusset 4 and stiffener plate
5, the inner end of main gusset 4 is welded to connect with spud leg 1, and top is provided between the bending deformation of main gusset 4, main gusset 4 to limit
Transverse plate 2, the sidepiece of main gusset 4 is welded to connect with the end of upper lateral plate 2, the inner end of stiffener plate 5 and the outside of upper lateral plate 2
Middle part is welded to connect, and the upper end of main gusset 4, stiffener plate 5 and upper lateral plate 2 is connected with the lower weld of top blind flange 3,
The bottom of main gusset 4, stiffener plate 5 and upper lateral plate 2 is connected with the upper weld of bottom loading plate 6, main gusset 4 and plus
The outer end of strengthening tendons plate 5 is welded to connect with top peripheral plate 7；Bottom loading plate 6 has circumferentially alternately been uniformly arranged skirtboard cage bar
Plate 10 and skirtboard stiffener plate 9, the inner end of skirtboard main gusset 10 are welded to connect with spud leg 1, are provided between skirtboard main gusset 10
Lower, transverse plate 11, the sidepiece of skirtboard main gusset 10 is welded to connect with the end of lower, transverse plate 11, the inner end of skirtboard stiffener plate 9 with
The outer middle side part of lower, transverse plate 11 is welded to connect, the upper end of skirtboard main gusset 10, skirtboard stiffener plate 9 and lower, transverse plate 11
It is connected with the lower weld of bottom loading plate 6, outer end and the lower periphery skirtboard of skirtboard main gusset 10 and skirtboard stiffener plate 9
8 are welded to connect, and the upper end of lower periphery skirtboard 8 is connected with the lower weld of bottom loading plate 6.Skirtboard main gusset 10, skirtboard
The position of stiffener plate 9 and lower, transverse plate 11 and main gusset 4, stiffener plate 5 and upper lateral plate 2 is corresponded.
The present invention coordinates the implementation steps that use of jack-up unit to be：
(1) platform on-station position soil property is determined, the attached framework of underwater obstacle and influence stage+module is removed, to sea bed
The gradient be more than 3 ‰ part need take dredge it is levelling；
(2) platform towage reaches raising position, casts anchor in place；
(3) start lowering or hoisting gear and decline spud leg 1, until touching mud can not continue to decline；
(4) suction pile injection sled block is installed, coordinates lowering or hoisting gear action, injection is carried out to bucket foundation, until can not
Sedimentation, removes sled block；
(5) lift bench is higher by about 1m height to bottom from high tide level, and with 1.1 times of load of pile crown power, ballast water is noted
In the ballast tank for entering setting；
(6) ballast lock pressure full water to shoe is no longer settled, you can carry out next step operation；
(7) ballast water is drained, lift bench locks jacking system to job requirement height；
(8) process equipment is debugged, and realization is put into operation.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, it is all
It is any simple modification, equivalent variations and the modification made according to the technical spirit of the present invention to above example, still falls within
In the range of technical solution of the present invention.
Claims (3)
1. suitable for self elevating platform suction type shoe, include top blind flange, main gusset, stiffener plate, upper lateral plate,
Top peripheral plate, bottom loading plate, skirtboard main gusset, skirtboard stiffener plate, lower, transverse plate, lower periphery skirtboard and water injection
Pipe, it is characterised in that the top blind flange is located at the top of the bottom loading plate, the top blind flange, the bottom loading plate
Center hole is provided centrally with, spud leg is welded to connect by the center hole of the top blind flange with the top blind flange, described
Spud leg is welded to connect by the center hole of the bottom loading plate with the bottom loading plate；The top blind flange, it is described under
Portion's loading plate avris is provided with avris circular hole, avris circular hole and the top of the water injection pipe top by the top blind flange
Portion's cover plate is welded to connect, and the water injection pipe bottom is welded by the avris circular hole of the bottom loading plate with the bottom loading plate
Connect, port and the suction pile of the water injection pipe are installed sled block and be connected, in piling from the interior discharge lower periphery skirtboard bag
The seawater enclosed, accelerates the sinking of shoe, until the driving depth of design requirement, the bottom is injected in pile pulling by outside seawater
Inside outer skirt panel, certain withdrawal resistance, the pile pulling power requirement of reduction lowering or hoisting gear and power consumption are produced；The top blind flange
Circumferentially replace between bottom and the bottom loading plate top and be uniformly arranged the main gusset and the stiffener plate, it is described
Main gusset inner end is welded to connect with the spud leg, and the upper lateral plate, main ribs plate are provided between main ribs plate
Sidepiece is welded to connect with the upper lateral plate end, and the stiffener plate inner end is welded with the outer middle side part of the upper lateral plate
Connect in succession, the upper end of main ribs plate, the stiffener plate and the upper lateral plate is welded with the bottom of the top blind flange
Connect in succession, the bottom of main ribs plate, the stiffener plate and the upper lateral plate and the top of the bottom loading plate
It is welded to connect, the outer end of main ribs plate and the stiffener plate is connected with the top peripheral plate weld；Hold the bottom
Support plate has circumferentially alternately been uniformly arranged the skirtboard main gusset and the skirtboard stiffener plate, the skirtboard main gusset inner end
It is welded to connect with the spud leg, the lower, transverse plate, the skirtboard main gusset sidepiece is provided between the skirtboard main gusset
It is welded to connect with the lower, transverse plate end, the skirtboard stiffener plate inner end is welded with the outer middle side part of the lower, transverse plate
Connect in succession, upper end and the bottom of the skirtboard main gusset, the skirtboard stiffener plate and the lower, transverse plate are carried
Welded with the lower periphery skirtboard outer end of the lower weld connection of plate, the skirtboard main gusset and the skirtboard stiffener plate
Connect in succession, the upper end of the lower periphery skirtboard is connected with the lower weld of the bottom loading plate.
2. the suction type shoe according to claim 1 suitable for self elevating platform, it is characterised in that the skirtboard cage bar
Plate, the skirtboard stiffener plate and the lower, transverse plate and main ribs plate, the stiffener plate and the upper lateral plate
Position correspond.
3. a kind of installation side of suction type shoe suitable for self elevating platform using as described in claim 1-2 any one
Method, comprises the following steps：
(1) platform on-station position soil property is determined, the attached framework of underwater obstacle and influence stage+module is removed, to the sea bed gradient
Part more than 3 ‰ need to take dredge it is levelling；
(2) platform towage reaches raising position, casts anchor in place；
(3) start lowering or hoisting gear and decline spud leg, until touching mud can not continue to decline；
(4) suction pile injection sled block is installed, coordinates lowering or hoisting gear action, injection is carried out to bucket foundation, until can not settle,
Remove sled block；
(5) lift bench is higher by about 1m height to bottom from high tide level, and with 1.1 times of load of pile crown power, ballast water injection is set
In fixed ballast tank；
(6) ballast lock pressure full water to shoe is no longer settled, you can carry out next step operation；
(7) ballast water is drained, lift bench locks jacking system to job requirement height；
(8) process equipment is debugged, and realization is put into operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410456301.5A CN105401577B (en) | 2014-09-10 | 2014-09-10 | Suction type shoe and installation method suitable for self elevating platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410456301.5A CN105401577B (en) | 2014-09-10 | 2014-09-10 | Suction type shoe and installation method suitable for self elevating platform |
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| Publication Number | Publication Date |
|---|---|
| CN105401577A CN105401577A (en) | 2016-03-16 |
| CN105401577B true CN105401577B (en) | 2017-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410456301.5A Active CN105401577B (en) | 2014-09-10 | 2014-09-10 | Suction type shoe and installation method suitable for self elevating platform |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106906839A (en) * | 2017-02-23 | 2017-06-30 | 天津大学 | A kind of combined type bucket foundation with skirtboard and its construction method |
| CN106759445A (en) * | 2017-02-23 | 2017-05-31 | 天津大学 | A kind of combined type bucket foundation with skirtboard and its construction method |
| CN106836265A (en) * | 2017-02-23 | 2017-06-13 | 天津大学 | A kind of gravity type bucket foundation with skirtboard and its construction method |
| GB2566288B (en) * | 2017-09-07 | 2022-04-13 | Equinor Energy As | Marine suction anchor |
| CN108945327B (en) * | 2018-07-25 | 2024-03-22 | 惠生清洁能源科技集团股份有限公司 | Suction pile of buoyancy tower platform |
| CN111424625B (en) * | 2020-04-23 | 2021-11-05 | 大连理工大学 | Self-elevating platform and intertidal zone fan installation platform suction type pile shoe, and test device and method thereof |
| CN114382102A (en) * | 2020-10-22 | 2022-04-22 | 天津市海王星海上工程技术股份有限公司 | Marine fixed structure foundation negative pressure cylinder and installation method |
| CN112796340A (en) * | 2021-01-25 | 2021-05-14 | 深洋海工技术(深圳)有限公司 | A new type of marine suction pile and its construction method |
| CN114182728B (en) * | 2021-12-23 | 2023-08-25 | 中国石油大学(华东) | A spud can that can consolidate soil and its installation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201043271Y (en) * | 2007-04-23 | 2008-04-02 | 中国海洋石油总公司 | Sink preventing and leveling device for installation of offshore platform pile pipe frame |
| CN204059351U (en) * | 2014-09-10 | 2014-12-31 | 天津市海王星海上工程技术股份有限公司 | A kind of suction type shoe being applicable to self elevating platform |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG177019A1 (en) * | 2010-06-09 | 2012-01-30 | Keppel Offshore & Marine Technology Ct Pte Ltd | Movable brace frame for self-installing platform |
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2014
- 2014-09-10 CN CN201410456301.5A patent/CN105401577B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201043271Y (en) * | 2007-04-23 | 2008-04-02 | 中国海洋石油总公司 | Sink preventing and leveling device for installation of offshore platform pile pipe frame |
| CN204059351U (en) * | 2014-09-10 | 2014-12-31 | 天津市海王星海上工程技术股份有限公司 | A kind of suction type shoe being applicable to self elevating platform |
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| CN105401577A (en) | 2016-03-16 |
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