CN102477733A - Installation method for integrally dragging cantilever beam onto platform - Google Patents
Installation method for integrally dragging cantilever beam onto platform Download PDFInfo
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- CN102477733A CN102477733A CN2010105612966A CN201010561296A CN102477733A CN 102477733 A CN102477733 A CN 102477733A CN 2010105612966 A CN2010105612966 A CN 2010105612966A CN 201010561296 A CN201010561296 A CN 201010561296A CN 102477733 A CN102477733 A CN 102477733A
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- semi girder
- cantilever beam
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Abstract
The invention discloses an installation method for integrally dragging a cantilever beam onto a platform, which comprises the following steps of: independently constructing a track at the tilted part in a lower slide way at the bow end of the cantilever beam; integrally constructing the cantilever beam, and sealing the track at the tilted part in the installation position of the cantilever beam in a horizontal mode; moving the cantilever beam onto a temporary slide way, and integrally dragging the cantilever beam onto the platform by utilizing a traction mechanism; and after the cantilever beam is dragged in place, dismantling the sealing component, lifting the track at the tilted part in the horizontal state to be in a tilted state by utilizing a lifting device, and fixing the track by welding. Through the method disclosed by the invention, the cantilever beam can be manufactured integrally on the land, and all devices are installed in place before the cantilever beam is folded, thereby greatly ensuring the construction integrality of the cantilever beam. A tilted slide track is flattened in advance before being dragged onto the platform, thereby being convenient for passing through a HOLDDOWN device. Simultaneously, the construction accuracy is convenient to control in integral construction of the cantilever beam. The dragging installation can shorten the construction cycle and is safe and reliable. The installation method disclosed by the invention has obvious economic benefit.
Description
Technical field
The present invention relates to the ocean engineering field, more particularly, relate to the mounting method of semi girder in the ocean platform building course.
Background technology
The self-elevating drilling platform of MSC design, its cantilever beam structure pattern is special, and move mode also is very different with the semi girder of other Chevron Research Company (CRC)s.This semi girder lower railway bow end upwarps pattern, and rig floor and semi girder main body are fixed.Semi girder integral body is except can carrying out vertically (directions X) moves, and can also carrying out laterally, (Y direction) moves.
The semi girder that adopts the MSC technology to build at present all is to be divided into 2 to 3 segmentations to build, and utilizes the crane lifting upper mounting plate to close up then.Adopt above-mentioned building technology, the integrality of semi girder when upper mounting plate can't guarantee, closes up, construction period is long, and semi girder is built precision and is difficult to control.
If adopt the technology that drags behind the semi girder integral constructing to construct, main difficulty be since semi girder bow end lower railway for upwarping pattern, it upwarps highly the open height considerably beyond the HOLDDOWN seat.According to dragging technology normally, semi girder upwarps track can't pass this structure, drags and can't implement.
Summary of the invention
Semi girder rig floor and the semi girder of MSC design are an integral body, rig floor can not be on semi girder move left and right, and semi girder can vertically (directions X) and laterally (Y direction) whole mobile.The slippage panel is not a straight track under the semi girder, but the bow end has the track that upwarps arc.The present invention mainly is to this type of semi girder, invents a kind of technology that drags upper mounting plate behind this type of semi girder land integral constructing.The present invention is intended to address the above problem, and develops a kind of brand-new technology that drags, and employing should technology, can realize the semi girder integral constructing, on the basis of the integrality that guarantees its structure and equipment, realizes smoothly dragging.The present invention supplies to adopt the whole semi girder integral body that moves of the technological X-Y direction of building of MSC to drag the relevant series of construction technology of upper mounting plate.
In order to achieve the above object, the present invention provides a kind of semi girder integral body to drag the mounting method to platform, comprises the steps:
S1, the independent construction in the semi girder bow end glide path upwarp the part track; Saidly upwarp the V-type plate that the part track comprises that the main riser of vertical setting, said main riser both sides are provided with, and the following slippage orbital plane plate that is provided with of said main riser lower horizontal.Semi girder bow end lower railway (upwarping sliding rail) is as independent structure manufacture.
S2, behind the integral constructing semi girder of bank, with step S1 obtain upwarp the part track utilize fixed part in a horizontal manner sealing at this moment, saidly upwarp open-width district of existence between part track and the said semi girder in the installation site of said semi girder.
In this step, all structures and the equipment of semi girder are all installed end, and these structures and equipment mainly comprise: rig floor, derrick, moon pool, all drilling equipment bags, all pipings and cable.
The open-width district be meant should upwarp setting upwarp the part track; This moment is with the level setting; Thereby leave aperture slots upwarping between part track and the semi girder body, utilize interim sealing device sealing between open-width district and the semi girder this moment, before semi girder drags, do not weld.
S3, at sea with the Platform Implementation station stake of said semi girder to be installed;
S4, laying are used for the interim slideway that semi girder moves, and said interim slideway is extended to the position of the platform said semi girder to be installed among the step S3 by the bank;
S5, the semi girder of step S2 is moved on the said interim slideway, haulage gear is set; Utilize said interim slideway and haulage gear that said semi girder integral body is dragged the position to be installed to the said platform;
After S6, said semi girder drag and put in place, remove the said fixed part that is used for fixing said semi girder on the part track that upwarps, then utilize lifting appliance that the said part track that upwarps of level is promoted to the state of upwarping, and fixing through welding.
In order to upwarp the lifting that the part track utilizes lifting appliance among the performing step S6, be provided with the lifting suspension ring at the front end that upwarps the part track, and be positioned at the both sides correspondence that upwarps the part track a plurality of suspension ring are set, so that reach the purpose of smooth lifting.
In addition; Be used for the fixed part that sealing upwarps the part track among the above-mentioned steps S2 and comprise that sealing is separately fixed at the body sidepiece and the said sealing horse plate that upwarps part track sidepiece of said semi girder in both sides, open-width district, and be connected the sealing channel-section steel between the said lower decks that upwarps part track and said semi girder.Under the optimal way, the interim slideway among the step S4 is selected the slideway that relies on rolling friction to realize for use; Haulage gear among the step S5 is selected winch for use.
The present invention provides a kind of brand-new construction technology to the whole semi girder that moves of the X-Y direction that adopts the MSC technology to build.Employing should technology, can be on land the stage semi girder is made complete, all devices all is in place before semi girder closes up, and has guaranteed the integrality that semi girder is built greatly.Semi girder bow end glide path (upwarping sliding rail) open-width district when dragging upper mounting plate, is set level it in advance, be convenient to upwarp track and pass the HOLDDOWN device.Integral constructing is convenient to control the construction precision of semi girder simultaneously.Drag the semi girder upper mounting plate and can significantly shorten the construction period of platform, and safe and reliable, have the economic benefit of highly significant.
Description of drawings
Fig. 1 is semi girder bow end glide path (upwarping a track) open-width district stereogram;
Fig. 2 is that semi girder bow end glide path is set level the post gap sketch map;
Fig. 3 is that glide path is set level back and horizontal datum gap figure;
Fig. 4 is the interim sealing sketch map of semi girder lower railway and lower platform;
Fig. 5 is the sketch map of semi girder lower railway and the interim sealing other type of lower platform;
Fig. 6 is the structure for amplifying sketch map of side-looking state in M place among Fig. 5;
Fig. 7 is that semi girder integral body of the present invention drags the mounting method construction process figure to platform;
Fig. 8 is the construction state diagram that semi girder integral body drags.
The specific embodiment
Flow process as shown in Figure 7 drags the mounting method to platform with reference to figure 8 explanations semi girder integral body of the present invention, comprises the steps:
Semi girder overall structure and equipment comprise derrick, moon pool 21, all pipings and cable, the drilling equipment hung down.Be locked on the semi girder flat condition setting before dragging after construction upwarps the part track separately temporarily.
Dash area is the bow end open-width district after setting level among accompanying drawing 2 and Fig. 3.Its clear area, top is before semi girder drags, to set level the gap that occurs behind the open-width district.Upwarp the difference in height of the preparatory reference line of slippage panel after the explanation lower railway is set level among Fig. 3.Adopt this technology, the upwarping panel and can realize passing through the HOLDDOWN seat smoothly of semi girder.Specifically, like Fig. 2 and Fig. 3, the main riser 5 of semi girder and the said slit 6 (open-width district) that has an opening between the part track 4 (lower skateboard of semi girder bow end) that upwarps.Interim sealing when open-width district 6 drags.Label A representes the horizontal location reference line among Fig. 2 and Fig. 3, and B representes semi girder lower panel reference line, and label 7 is a semi girder glide path web, and label 9 is a semi girder glide path slippage panel.L
1And L
3Be peak open-width district, the gap is 25mm, L
2Be minimum point open-width district, the gap is 10mm.Shown in Fig. 4-6, sealing is in the mode of semi girder in a horizontal manner to utilize temporary fixed parts will upwarp the part track, and the shadow region upwarps part track 12 for what set level temporarily among the figure.Interim sealing mainly is made up of sealing horse plate 11, sealing channel-section steel 10.Sealing horse plate 11 is two of front and back in a side, and sealing channel-section steel 10 is installed on the lower railway of temporarily setting level and lower decks.Adopt this sealing mode, under the situation that guarantees safety, all devices that can satisfy on the semi girder lower decks is in place.In addition, among Fig. 4 and Fig. 5, label H representes the pipe holder deck.
After step 6, said semi girder drag and put in place.Remove the said fixed part that is used for fixing said semi girder on the part track that upwarps, then sharp lifting appliance is promoted to the state of upwarping with the said part track that upwarps of level, and fixing through welding.
Like Fig. 4 and shown in Figure 5, for ease of the lower railway of setting level is in place after dragging, at semi girder and upwarp lifting suspension ring 13 have been installed on the part track.Utilize these suspension ring, the semi girder lower railway of setting level can conveniently be in place.
Among Fig. 8, the moon pool on the label 21 expression semi girders, the interim slideway of label 22 expressions, label D is ground; Label E is for building the Pu Dun district, and label F is that land drags the district, and label G is a harbour; The spacing pier of label 23 expressions, label 24 is a platform, label 25 is a slip support abutment; Label 26 is the interim slideway in deck, and label 27 is a semi girder, and arrow K representes the semi girder glide direction.
Adopt this technology, can guarantee that all devices can all be installed in the semi girder, can not influence the integrality of semi girder owing to the interim sealing of part lower railway.The open-width district that sets level simultaneously under the situation of not utilizing crane equipment, can be safe and efficient it is promoted contraposition, be convenient to construction.Semi girder bow end lower railway (upwarping sliding rail) open-width district sets level it when dragging upper mounting plate in advance, is convenient to upwarp track and passes the HOLDDOWN device.The interim frock of setting level of lower railway utilization is locked on the semi girder.Interim sealing frock is set simultaneously with semi girder lower platform positioning and fixing, guarantees that all devices on the lower platform is in place.After semi girder dragged and puts in place, the suspension ring that utilize bottle gouard moved by hands and setting were realized upwarping after it is promoted certain altitude.The present invention is the application example that first semi girder of the CJ series platform of MSC design is dragged upper mounting plate in the world.Adopt this technology, can guarantee the integrality that semi girder is built, significantly shorten construction period, remarkable in economical benefits has high application value.
The above; Be merely the preferable specific embodiment of the present invention; But protection scope of the present invention is not limited thereto; Any technician who is familiar with the present technique field is equal to replacement or change according to technical scheme of the present invention and inventive concept thereof in the technical scope that the present invention discloses, all should be encompassed within protection scope of the present invention.
Claims (4)
1. a semi girder integral body drags the mounting method to platform, it is characterized in that, comprises the steps:
S1, the independent construction in the semi girder bow end glide path upwarp the part track;
The said part track that upwarps comprises the main riser (2) of vertical setting, the V-type plate (3) that said main riser (2) both sides are provided with, and the following slippage orbital plane plate (1) of said main riser (2) lower horizontal setting;
S2, behind the integral constructing semi girder of bank, with step S1 obtain upwarp the part track utilize fixed part in a horizontal manner sealing at this moment, saidly upwarp open-width district of existence between part track and the said semi girder in the installation site of said semi girder;
The stake of at sea standing of S3, the platform of realizing said semi girder to be installed;
S4, laying are used for the interim slideway that semi girder moves, and said interim slideway is extended to the position of the platform said semi girder to be installed among the step S3 by the bank;
S5, the semi girder of step S2 is moved on the said interim slideway, haulage gear is set; Utilize said interim slideway and haulage gear that said semi girder integral body is dragged the position to be installed to the said platform;
After S6, said semi girder drag and put in place, remove the said fixed part that is used for fixing said semi girder on the part track that upwarps, then sharp lifting appliance is promoted to the state of upwarping with the said part track that upwarps of level, and fixing through welding.
2. drag the mounting method to platform according to the said semi girder integral body of claim 1, it is characterized in that, the said front end that upwarps the part track is provided with and promotes suspension ring (13).
3. drag mounting method according to the said semi girder integral body of claim 2 to platform; It is characterized in that; Fixed part described in the step S2 comprises that sealing is separately fixed at the body sidepiece and the said sealing horse plate (11) that upwarps part track sidepiece of said semi girder in both sides, open-width district, and is connected the sealing channel-section steel (10) between the said lower decks that upwarps part track and said semi girder.
4. drag the mounting method to platform according to the said semi girder integral body of claim 3, it is characterized in that, the interim slideway among the step S4 is a rolling friction formula slideway; Haulage gear among the step S5 is selected winch for use.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010561296.6A CN102477733B (en) | 2010-11-26 | 2010-11-26 | Installation method for integrally dragging cantilever beam onto platform |
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| CN201010561296.6A CN102477733B (en) | 2010-11-26 | 2010-11-26 | Installation method for integrally dragging cantilever beam onto platform |
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| CN102477733A true CN102477733A (en) | 2012-05-30 |
| CN102477733B CN102477733B (en) | 2014-12-31 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104420453A (en) * | 2013-08-21 | 2015-03-18 | 中集海洋工程研究院有限公司 | Integral jointing method of cantilever beam of self-elevating drilling platform |
| CN104652393A (en) * | 2015-01-15 | 2015-05-27 | 山海关船舶重工有限责任公司 | Method for integrally shifting cantilever beam out of platform and moving cantilever beam back to platform |
| CN104802924A (en) * | 2014-05-27 | 2015-07-29 | 烟台中集来福士海洋工程有限公司 | Top pipe deck of cantilever beam and building method thereof |
| CN104805819A (en) * | 2015-03-17 | 2015-07-29 | 中集海洋工程研究院有限公司 | Folding method of cantilever beam |
| CN104943819A (en) * | 2014-03-25 | 2015-09-30 | 上海外高桥造船有限公司 | Cantilever beam double-section type construction method |
| CN105401887A (en) * | 2015-11-16 | 2016-03-16 | 南通长青沙船舶工程有限公司 | Derrick large device preassembling method for drilling bag |
| CN108487213A (en) * | 2018-03-16 | 2018-09-04 | 南通振华重型装备制造有限公司 | A kind of self-elevating drilling platform cantilever beam girder method of construction |
| CN110998028A (en) * | 2017-06-23 | 2020-04-10 | 格斯特Msc资源公司 | Seaworthiness fixation of a cantilever on a mobile offshore platform |
| CN111448353A (en) * | 2017-02-02 | 2020-07-24 | 泰克尼普法国公司 | Method for assembling an apparatus placed in a body of water |
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| NO319093B1 (en) * | 1997-08-29 | 2005-06-20 | Marine Structure Consul | Drilling rig |
| CN1687533A (en) * | 2005-05-10 | 2005-10-26 | 大连理工大学 | Movable bracket of cantilever beam on platform of drilling for oil |
| CN201132952Y (en) * | 2007-12-04 | 2008-10-15 | 大连船舶重工集团有限公司 | High- accuracy large-sized socle girder |
| CN101806053A (en) * | 2010-05-17 | 2010-08-18 | 大连船舶重工集团有限公司 | Integral installation method of cantilever beams of self lifting type well drilling platform |
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Patent Citations (5)
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| US4973198A (en) * | 1989-12-28 | 1990-11-27 | Shell Oil Company | Offshore drilling rig transfer |
| NO319093B1 (en) * | 1997-08-29 | 2005-06-20 | Marine Structure Consul | Drilling rig |
| CN1687533A (en) * | 2005-05-10 | 2005-10-26 | 大连理工大学 | Movable bracket of cantilever beam on platform of drilling for oil |
| CN201132952Y (en) * | 2007-12-04 | 2008-10-15 | 大连船舶重工集团有限公司 | High- accuracy large-sized socle girder |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104420453B (en) * | 2013-08-21 | 2016-06-01 | 中集海洋工程研究院有限公司 | The overall folding method of a kind of self-elevating drilling platform cantilever beam |
| CN104420453A (en) * | 2013-08-21 | 2015-03-18 | 中集海洋工程研究院有限公司 | Integral jointing method of cantilever beam of self-elevating drilling platform |
| CN104943819B (en) * | 2014-03-25 | 2017-06-16 | 上海外高桥造船有限公司 | Cantilever beam two-part method of construction |
| CN104943819A (en) * | 2014-03-25 | 2015-09-30 | 上海外高桥造船有限公司 | Cantilever beam double-section type construction method |
| CN104802924B (en) * | 2014-05-27 | 2018-04-03 | 烟台中集来福士海洋工程有限公司 | Cantilever beam top layer pipe deck and its method of construction |
| CN104802924A (en) * | 2014-05-27 | 2015-07-29 | 烟台中集来福士海洋工程有限公司 | Top pipe deck of cantilever beam and building method thereof |
| CN104652393B (en) * | 2015-01-15 | 2016-08-17 | 山海关船舶重工有限责任公司 | The removal of a kind of cantilever beam entirety and the method retracting platform |
| CN104652393A (en) * | 2015-01-15 | 2015-05-27 | 山海关船舶重工有限责任公司 | Method for integrally shifting cantilever beam out of platform and moving cantilever beam back to platform |
| CN104805819A (en) * | 2015-03-17 | 2015-07-29 | 中集海洋工程研究院有限公司 | Folding method of cantilever beam |
| CN105401887A (en) * | 2015-11-16 | 2016-03-16 | 南通长青沙船舶工程有限公司 | Derrick large device preassembling method for drilling bag |
| CN111448353A (en) * | 2017-02-02 | 2020-07-24 | 泰克尼普法国公司 | Method for assembling an apparatus placed in a body of water |
| CN111448353B (en) * | 2017-02-02 | 2022-03-08 | 泰克尼普法国公司 | Method for assembling an apparatus placed in a body of water |
| CN110998028A (en) * | 2017-06-23 | 2020-04-10 | 格斯特Msc资源公司 | Seaworthiness fixation of a cantilever on a mobile offshore platform |
| CN110998028B (en) * | 2017-06-23 | 2022-04-26 | 卡斯淘Msc有限公司 | Seaworthiness fixation of a cantilever on a mobile offshore platform |
| CN108487213A (en) * | 2018-03-16 | 2018-09-04 | 南通振华重型装备制造有限公司 | A kind of self-elevating drilling platform cantilever beam girder method of construction |
| CN108487213B (en) * | 2018-03-16 | 2019-11-15 | 南通振华重型装备制造有限公司 | A kind of self-elevating drilling platform cantilever beam girder method of construction |
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