CN1974936A - Assembling method for large truss type pile leg structure - Google Patents
Assembling method for large truss type pile leg structure Download PDFInfo
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- CN1974936A CN1974936A CN 200610134682 CN200610134682A CN1974936A CN 1974936 A CN1974936 A CN 1974936A CN 200610134682 CN200610134682 CN 200610134682 CN 200610134682 A CN200610134682 A CN 200610134682A CN 1974936 A CN1974936 A CN 1974936A
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Abstract
The present invention discloses an assembly method of large trussed pile leg structure. Said method includes the following steps: first step, utilizing horizontal construction mode and using main side pipe positioned in one end as reference to assemble single-sheet structure of every pile leg part, the length of every described single-sheet structure is 15-25 meters; second steps, utilizing mould frame to make three identical single-sheet structures be formed into a regular trilateral trussed pile leg part; and third step, assembling all the pile leg parts together so as to obtain the invented large trussed pile leg structure.
Description
Technical field
The present invention relates to a kind of assembly method of offshore boring island triangle spud leg, more particularly, relate to the improvement of large-scale self-elevating drilling platform triangle pile leg structure assemble flow.
Background technology
At present, in the used mobile platform in countries in the world, self-elevating drilling platform accounts for 70%, is the main type of oil drilling platform.Large truss type pile leg is the key structure of self-elevating drilling platform, and spud leg is shaped as the English truss formula, and form of structure is that structure is passed through in the pipe support mutually.The place, three angles of pile leg structure is provided with the main shipboard tube of band tooth bar, by the structural tube composition English truss that is connected.Because the pile leg structure strength of materials is big, the joint form complexity, the welding difficulty is big, dimensional requirement is very strict, and the quality of fit of spud leg and tooth bar case requires high, therefore for the construction required precision height of pile leg structure, makes the pile leg structure assembly difficulty very big.Reasonably the pile leg structure assembly method is very crucial to size Control, reduction welding difficulty, assurance design node etc.
In the prior art, adopted a kind of method of segmentation integral constructing, for example, long 168 meters of single leg, each spud leg is divided into 7 sections, spreading behind the sectional construction, the about 14m*12m*25m of fragment size, 185 tons of weight.But, in this building course, the method that adopts all is after blanking, utilize the moulding bed device, according to certain assemble sequence, directly main shipboard tube, stay pipe, interior horizontal tube and other braced structuress are fixed, disposable group of spud leg segmentation of founding into an English truss formula, then upright and final realization complete cross section closes up with each spud leg segmentation group again.Problem is that the English truss formula is a stereochemical structure, all needs to support in building each pipe fitting process, and difficulty is bigger.Therefore, in order to guarantee to build precision, need to drop into great amount of manpower and material resources, cost is higher.
Summary of the invention
The present invention is directed to the problems referred to above, a kind of assembly method of large truss type pile leg structure is provided, its purpose is primarily aimed at the problem that assemble flow exists in the prior art and improves, the process change that adopts pipe fitting to assemble successively spud leg segmentation in the prior art is: earlier crouch make assemble English truss under the mode respectively a face (being called single chip architecture) then again group stand into the spud leg segmentation, thereby solved prior art difficulty of construction height, human and material resources are wasteful, the problem that construction precision is difficult to guarantee.Utilize this method, can meet design requirement, guarantee spud leg construction precision.
In order to address the above problem, the present invention has constructed a kind of assembly method of large truss type pile leg structure, comprise the steps: the first step, make under the mode for sleeping in, with the main shipboard tube that is positioned at an end is benchmark, assembles the single chip architecture of each spud leg segmentation, and the length of single chip architecture is consistent with the spud leg section length, being generally 15-25 rice, is about 20 meters under the optimal way; Second step, make under the mode crouching, utilize the moulding bed device, the truss framed leg segmentation that three identical single chip architecture groups are found into positive triangle; In the 3rd step, that the spud leg segmentation group finished is upright and realize that complete cross section closes up.
The assembly method of large truss type pile leg structure of the present invention, it further improves and is, in above-mentioned the 3rd step, at first upright to constitute a segment length be lengthening spud leg segmentation about 30-50 rice in realization group under the vertical state with 2-3 spud leg segmentation, and realization group successively is upright and finish complete cross section and close up from the bottom to top under vertical state in the spud leg segmentation that then utilizes lengthening.The segmentation of this dress of lengthening earlier leg, the upright mode of group can further reduce to organize upright difficulty again, reaches the purpose of saving cost.Certainly, as the case may be, also can directly the spud leg segmentation be organized under vertical state from the bottom to top successively and stand and finish complete cross section and close up.
The single chip architecture of above-mentioned spud leg segmentation comprises that the main shipboard tube and the end that are positioned at an end are fixed on the main shipboard tube and a plurality of horizontal tubes that are provided with at interval, be provided with the lateral support pipe between adjacent horizontal tube and the main shipboard tube, the opening end of horizontal tube and lateral support pipe is fixing channel-section steel respectively in the body both sides.Wherein channel-section steel makes single chip architecture become enclosed construction by original uncovered structure as the stiffener of horizontal tube, lateral support tube end, has guaranteed the intensity and the end size precision of single chip architecture, guarantees the intensity of template simultaneously.The assembling process of spud leg segmentation single chip architecture is, at first is benchmark assembling horizontal tube with the main shipboard tube, and then fixation side is positioned at body both sides fixing channel-section steel respectively at the opening end of horizontal tube and lateral support pipe at last to stay pipe between horizontal tube and main shipboard tube.This process sequence can fully guarantee the dimensional accuracy of main chord tube.The setting of concrete stay pipe arranges with concrete condition as required, and generally above and hereinafter the connection of pipe fitting all adopts welding manner to realize.
The assembly method of above-mentioned large truss type pile leg structure, its further improvement also are, in second step, at first fix the spud leg segmentation single chip architecture of a level; Then assemble the single chip architecture of main shipboard tube on the top; After this assemble another single chip architecture; Fixing spud leg fragment bit oblique stay pipe between three horizontal tubes in a cross section at last.Under the optimum way, select following process for use, at first fix the spud leg segmentation single chip architecture of a level, then assemble main shipboard tube the lower end single chip architecture, after this assemble another single chip architecture, at last fixing spud leg fragment bit oblique stay pipe between three horizontal tubes in a cross section.
The present invention is by the segmentation spud leg single slice structure that the adopts making method that crouches, and promptly welding finishes in the another one place earlier for main shipboard tube and stay pipe, makes that to finish the monolithic group under the mode upright crouching, and then 3 monolithic groups is stood in the segmentation place and adorns weldering, finishes the segmentation assembling.Just be with the fundamental difference point of existing construction method, the external segmentation integral constructing method that adopts, not upright this technological process of spud leg single slice group, promptly all members, comprise that structures such as main shipboard tube, stay pipe, interior horizontal tube after blanking, all assemble, weld in the segmentation stage.And the present invention reduces welding deformation for satisfying the requirement of design node, and the construction size of control pile leg structure through the pre-stage test demonstration, has been determined rational spud leg internal construction assemble sequence.Therefore the assembly method of large truss type pile leg structure of the present invention has following advantage:
1, increases the upright stage of monolithic group, help labour's expansion, can increase work efficiency greatly, shorten spud leg and build construction period;
2, help spud leg and build precision control: pile leg structure will inevitably produce accumulated tolerance in supplied materials, processing, main shipboard tube spreading process, that have even exist overproof, the characteristic of utilizing tolerance to borrow mutually like this, by upright stage of monolithic group and upright stage of segmentation group, basically can eliminate or reduce tolerance, thereby reach the purpose of size Control.
3, be beneficial to welding, there are a large amount of stealthy weld seams in pile leg structure, according to welding requirements, pipe component with stealthy weld seam must be prior to non-stealthy member welding, increase the upright stage of monolithic group, can the pipe component with stealthy weld seam be finished in this stage welding, and welding and assembling height is low, avoided the work high above the ground welding in segmentation stage, favourable to welding quality.
Description of drawings
Fig. 1 is that the present invention is at the upright schematic diagram of group that crouches and make spud leg segmentation single chip architecture under the mode;
To be the present invention make the upright longitudinal projection's schematic diagram of spud leg segmentation group under the mode crouching to Fig. 2;
Fig. 3 is that the present invention is in the schematic top plan view of making spud leg construction moulding bed device under the mode for sleeping in.
The specific embodiment
Large truss type pile leg generally reaches the length of 100m even 170m, needs for ease of size Control and construction, and overall assembly method should be assembled respectively according to being divided into plurality of sections along its length, and the segmentation assembling should be adopted the method that crouches and make.The assembly method of large truss type pile leg structure of the present invention, its total assemble flow is: the main shipboard tube spreading, and---spud leg segmentation monolithic group is upright, and---spud leg segmentation group is upright---spud leg segmented general group is upright---, and spud leg segmentation/complete cross section closes up.Certainly, before building, need the parameters such as length of accurate Calculation and design pile leg structure, each spud leg segmentation.
Wherein, " single chip architecture " mentioned in above-mentioned spud leg segmentation monolithic and the literary composition, as shown in Figure 1, comprise that the main shipboard tube 1 and the end that are positioned at an end are fixed in the horizontal tube 2 of main shipboard tube 1 and interval setting, be provided with lateral support pipe 3 between horizontal tube 2 and the main shipboard tube 1, the opening end of horizontal tube and lateral support pipe is fixing channel-section steel 21 respectively in the body both sides.Wherein, channel-section steel 21 makes single chip architecture become enclosed construction by original uncovered structure as the stiffener of stay pipe, lateral support tube end, has guaranteed the intensity and the end size precision of single chip architecture, guarantees the intensity of template simultaneously.In assembling process, the other end of horizontal tube 2 and lateral support pipe 3 is weldingly fixed on the main shipboard tube of another single chip architecture.In addition, among Fig. 2, comprise that respectively the assembly 5,6 and 7 of a main shipboard tube and horizontal tube is all represented above-mentioned spud leg segmentation single chip architecture.
Fig. 3 demonstrates to be used for crouching and makes the required moulding bed device of spud leg segmentation, this moulding bed device comprises that the longitudinal separation layout is fixed in the following I pattern plate B1 on ground, is parallel to descend the longitudinal direction of I pattern plate B1 to arrange the following II pattern plate B2 that is fixed in ground at interval, and the spaced apart cope match-plate pattern B3 of longitudinal direction between following I pattern plate B1 and the following II pattern plate B2; Thereby realized being arranged side by side of above-mentioned three groups of templates, in building course, be used for support triangle shape pile leg structure.Certainly, also can select for use other forms to be used for moulding bed device, but be selected in the moulding bed device that " the sectional casing rack device that is used for the spud leg sectional construction " patent that the applicant applies for is simultaneously discussed in detail under the optimal way at building course support triangle shape pile leg structure.
With reference to the accompanying drawings, assemble flow of the present invention is described in conjunction with specific embodiments.
Embodiment 1:
At first, same as the prior art, at structure pipe fitting such as main shipboard tube, stay pipe, interior horizontal tube and the member blanking that will use, in other places or the assembling area finish the welding of pipe fittings such as main shipboard tube and stay pipe, and realize the operation of main shipboard tube spreading.
Thereafter, as shown in Figure 1, making under the mode for sleeping in, is benchmark with the main shipboard tube that is positioned at an end, assembles the single chip architecture of each spud leg segmentation, and the length of each single chip architecture is 15-25 rice, and is consistent with the length of spud leg segmentation, and optimum way is about 20 meters.Wherein, the single chip architecture assembling process is, is benchmark assembling horizontal tube 2 with main shipboard tube 1 at first, then between horizontal tube 2 and main shipboard tube 1 fixation side to stay pipe 3.Two stay pipes of mark 4 expressions among Fig. 1, thus installation realizes that final group is upright as loose mail in the upright stage of segmentation group.In addition, be positioned at the body both sides at the opening end of horizontal tube 2 and lateral support pipe 3 and weld channel-section steel 21 respectively.
After this, as shown in Figure 2, make under the mode for sleeping in, utilize the moulding bed device, with the truss framed leg segmentation that three identical single chip architecture groups are found into positive triangle, the moulding bed basal plane can be selected leg-of-mutton arbitrary for use.The upright process of its group is at first to fix the single chip architecture 5 of a horizontal level; Then assemble the single chip architecture 7 of main shipboard tube on the top; After this assemble another single chip architecture 6; Fixing spud leg fragment bit oblique stay pipe 8 between three horizontal tubes in a cross section at last.
The spud leg segmentation group of finishing is found in final step and the realization complete cross section closes up.In this course, can adopt earlier to constitute the spud leg segmentation that a segment length is a 30-50 rice lengthening with 2-3 spud leg segmentation realization group under vertical state is upright, then utilize this lengthening spud leg segmentation under vertical state from the bottom to top realization group successively stand and finish complete cross section and close up.
Embodiment 2:
------the process that spud leg segmentation/complete cross section closes up that spud leg segmentation group is upright---spud leg segmented general group is upright---that spud leg segmentation monolithic group is upright that comprises the main shipboard tube spreading, but stage in the end, it is upright and realize that complete cross section closes up the stage promptly to finish spud leg segmentation group, can directly the spud leg segmentation be realized under vertical state from the bottom to top successively.
Embodiment 3:
At first, at structure blankings such as main shipboard tube, stay pipe, interior horizontal tubes, finish the welding and the main shipboard tube spreading of pipe fittings such as main shipboard tube and stay pipe.Thereafter, making under the mode for sleeping in, is benchmark with the main shipboard tube that is positioned at an end, assembles the single chip architecture of each spud leg segmentation.
After this, as shown in Figure 2, make under the mode crouching, to utilize the moulding bed device, the truss framed leg segmentation that three identical single chip architecture groups are found into positive triangle.The upright process of its group is preferably, at first fix the single chip architecture 5 of a horizontal level, then assemble main shipboard tube the lower end single chip architecture 6, after this assemble another single chip architecture 7, at last fixing spud leg fragment bit oblique stay pipe 8 between three horizontal tubes in a cross section.
The spud leg segmentation group of finishing is found in final step and the realization complete cross section closes up.This process, the assembling process of embodiment 1 and embodiment 2 all is suitable for, according to circumstances select, best, select the mode of embodiment 1 for use, earlier 2-3 spud leg segmentation organize under vertical mode and stood, constitute a segment length and be the lengthening spud leg segmentation about 30-50 rice, then again under vertical state the realization group stand and finish complete cross section and close up.
The above; only be the preferable specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (6)
1, a kind of assembly method of large truss type pile leg structure is characterized in that, comprises the steps:
S1: making under the mode for sleeping in, is benchmark with the main shipboard tube that is positioned at an end, assembles the single chip architecture of each spud leg segmentation, and the length of described single chip architecture is consistent with the spud leg section length, is generally 15-25 rice;
S2: make under the mode crouching, to utilize the moulding bed device, the truss framed leg segmentation that three identical described single chip architecture groups are found into positive triangle;
S3: the spud leg segmentation group finished in the S2 step is upright and realize that complete cross section closes up.
2, the assembly method of large truss type pile leg structure according to claim 1, it is characterized in that, in step S3, the spud leg segmentation crouch make build completion under the state after, can upright to constitute a segment length be the lengthening spud leg segmentation of 30-50 rice 2-3 spud leg segmentation realization group under vertical state, realization group successively is upright and finish complete cross section and close up from the bottom to top under vertical state in the spud leg segmentation that then utilizes described lengthening.
3, the assembly method of large truss type pile leg structure according to claim 1 is characterized in that, in step S3, with the spud leg segmentation from the bottom to top successively under vertical state group upright and finish complete cross section and close up.
4, according to the assembly method of the arbitrary described large truss type pile leg structure of claim 1-3, it is characterized in that, described single chip architecture comprises that the main shipboard tube (1) and the end that are positioned at an end are fixed in the horizontal tube (2) of described main shipboard tube (1) and interval setting, be provided with lateral support pipe (3) between described horizontal tube (2) and the described main shipboard tube (1), the opening end of described horizontal tube (2) and described lateral support pipe (3) is fixing channel-section steel (21) respectively in the body both sides; Its assembling process is, be that benchmark assembles described horizontal tube (2) at first with described main shipboard tube (1), then between described horizontal tube (2) and described main shipboard tube (1), fix described lateral support pipe (3), be positioned at body both sides fixing channel-section steel (21) respectively at the opening end of described horizontal tube (2) and described lateral support pipe (3) at last.
5, the assembly method of large truss type pile leg structure according to claim 4, it is characterized in that, in step S2, at first fix the single chip architecture (5) of a horizontal level, then assemble the single chip architecture (6) of main shipboard tube in the lower end, after this assemble another single chip architecture (7), fix described spud leg segmentation oblique stay pipe (8) between three described horizontal tubes in a cross section at last.
6, the assembly method of large truss type pile leg structure according to claim 4 is characterized in that, in step S2, at first fixes the single chip architecture (5) of a horizontal level; Then assemble the single chip architecture (7) of main shipboard tube in the upper end; After this assemble another single chip architecture (6); Fix described spud leg segmentation oblique stay pipe (8) between three described horizontal tubes in a cross section at last.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465578C (en) * | 2007-10-18 | 2009-03-04 | 大连船舶重工集团有限公司 | Large-scale truss type stake leg segmentation data detection method |
| CN101850928A (en) * | 2010-05-31 | 2010-10-06 | 南通中远船务工程有限公司 | Special stability truss lifting tool for large-scale complete cross section |
| CN102168417A (en) * | 2010-02-25 | 2011-08-31 | 烟台来福士海洋工程有限公司 | Truss framed leg folding method of jack-up drilling platform |
| CN102888842A (en) * | 2012-10-29 | 2013-01-23 | 中国海洋石油总公司 | Lengthening and shifting process of large-sized deepwater jacket steel pile |
| CN101879932B (en) * | 2009-05-08 | 2013-03-06 | 中国海洋石油总公司 | Method for lengthening and lading steel piles of large deepwater jacket |
| CN103266778A (en) * | 2013-05-08 | 2013-08-28 | 北京城建精工钢结构工程有限公司 | Detachable triangular scaffold and steel truss assembly construction method |
| CN103341706A (en) * | 2012-12-18 | 2013-10-09 | 南通振华重型装备制造有限公司 | Jig frame for 300-foot self-elevating drilling platform spud leg structure |
| CN103722295A (en) * | 2012-10-11 | 2014-04-16 | 烟台中集来福士海洋工程有限公司 | Deformation prevention welding method for pile legs of drilling platform |
| CN104476055A (en) * | 2014-09-28 | 2015-04-01 | 南通振华重型装备制造有限公司 | Pile leg manufacturing method for *-shaped supporting pipe |
| CN104499477A (en) * | 2014-11-27 | 2015-04-08 | 中国海洋石油总公司 | Precasting technology for steel piles of large deep water jacket |
| CN104526283A (en) * | 2014-12-19 | 2015-04-22 | 华泰重工(南通)有限公司 | Variable-section-type three-dimensional triangular truss manufacturing process |
| CN104759770A (en) * | 2014-10-10 | 2015-07-08 | 南通振华重型装备制造有限公司 | Self-elevating drilling platform pile leg manufacturing method |
| CN104805816A (en) * | 2014-08-01 | 2015-07-29 | 烟台中集来福士海洋工程有限公司 | Pile leg section folding tool and mounting method of pile leg section supporting pipe to be mounted |
| CN104874931A (en) * | 2015-04-21 | 2015-09-02 | 南通蓝岛海洋工程有限公司 | Drilling platform pile leg manufacturing technology |
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2006
- 2006-12-08 CN CNB2006101346820A patent/CN100476081C/en active Active
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465578C (en) * | 2007-10-18 | 2009-03-04 | 大连船舶重工集团有限公司 | Large-scale truss type stake leg segmentation data detection method |
| CN101879932B (en) * | 2009-05-08 | 2013-03-06 | 中国海洋石油总公司 | Method for lengthening and lading steel piles of large deepwater jacket |
| CN102168417A (en) * | 2010-02-25 | 2011-08-31 | 烟台来福士海洋工程有限公司 | Truss framed leg folding method of jack-up drilling platform |
| CN102168417B (en) * | 2010-02-25 | 2013-03-27 | 烟台来福士海洋工程有限公司 | Truss framed leg folding method of jack-up drilling platform |
| CN101850928A (en) * | 2010-05-31 | 2010-10-06 | 南通中远船务工程有限公司 | Special stability truss lifting tool for large-scale complete cross section |
| CN101850928B (en) * | 2010-05-31 | 2012-07-04 | 南通中远船务工程有限公司 | Special stability truss lifting tool for large-scale complete cross section |
| CN103722295A (en) * | 2012-10-11 | 2014-04-16 | 烟台中集来福士海洋工程有限公司 | Deformation prevention welding method for pile legs of drilling platform |
| CN102888842B (en) * | 2012-10-29 | 2015-01-07 | 中国海洋石油总公司 | Lengthening and shifting process of large-sized deepwater jacket steel pile |
| CN102888842A (en) * | 2012-10-29 | 2013-01-23 | 中国海洋石油总公司 | Lengthening and shifting process of large-sized deepwater jacket steel pile |
| CN103341706A (en) * | 2012-12-18 | 2013-10-09 | 南通振华重型装备制造有限公司 | Jig frame for 300-foot self-elevating drilling platform spud leg structure |
| CN103341706B (en) * | 2012-12-18 | 2015-11-18 | 南通振华重型装备制造有限公司 | A kind of 300 feet of pile legs of self-elevating drilling platform structure jig frame specials |
| CN103266778B (en) * | 2013-05-08 | 2015-06-10 | 北京城建精工钢结构工程有限公司 | Detachable triangular scaffold and steel truss assembly construction method |
| CN103266778A (en) * | 2013-05-08 | 2013-08-28 | 北京城建精工钢结构工程有限公司 | Detachable triangular scaffold and steel truss assembly construction method |
| CN104805816A (en) * | 2014-08-01 | 2015-07-29 | 烟台中集来福士海洋工程有限公司 | Pile leg section folding tool and mounting method of pile leg section supporting pipe to be mounted |
| CN104476055A (en) * | 2014-09-28 | 2015-04-01 | 南通振华重型装备制造有限公司 | Pile leg manufacturing method for *-shaped supporting pipe |
| CN104759770A (en) * | 2014-10-10 | 2015-07-08 | 南通振华重型装备制造有限公司 | Self-elevating drilling platform pile leg manufacturing method |
| CN104759770B (en) * | 2014-10-10 | 2016-08-17 | 南通振华重型装备制造有限公司 | A kind of manufacture method of pile legs of self-elevating drilling platform |
| CN104499477A (en) * | 2014-11-27 | 2015-04-08 | 中国海洋石油总公司 | Precasting technology for steel piles of large deep water jacket |
| CN104499477B (en) * | 2014-11-27 | 2016-05-11 | 中国海洋石油总公司 | Large-sized deep water jacket piling bar precasting process |
| CN104526283A (en) * | 2014-12-19 | 2015-04-22 | 华泰重工(南通)有限公司 | Variable-section-type three-dimensional triangular truss manufacturing process |
| CN104874931A (en) * | 2015-04-21 | 2015-09-02 | 南通蓝岛海洋工程有限公司 | Drilling platform pile leg manufacturing technology |
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