CN104029799A - Box-type lower floating body multi-stand-column-type semi-submersible platform - Google Patents

Box-type lower floating body multi-stand-column-type semi-submersible platform Download PDF

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Publication number
CN104029799A
CN104029799A CN201410232158.1A CN201410232158A CN104029799A CN 104029799 A CN104029799 A CN 104029799A CN 201410232158 A CN201410232158 A CN 201410232158A CN 104029799 A CN104029799 A CN 104029799A
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CN
China
Prior art keywords
buoyancy aid
box
platform
mounting plate
upright post
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Pending
Application number
CN201410232158.1A
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Chinese (zh)
Inventor
陆晔
叶永林
顾学康
田超
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702th Research Institute of CSIC
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702th Research Institute of CSIC
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Priority to CN201410232158.1A priority Critical patent/CN104029799A/en
Publication of CN104029799A publication Critical patent/CN104029799A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a box-type lower floating body multi-stand-column-type semi-submersible platform. The box-type lower floating body multi-stand-column-type semi-submersible platform comprises a lower floating body. The upper portion of the lower floating body is connected to an upper platform through multiple stand columns. The lower floating body is parallel to the upper platform. The lower surface of the upper platform is parallel to the water surface. The upper surface of the upper platform is provided with a superstructure. A helicopter take-off and landing area is arranged on a deck located on the upper platform. An anchoring system is arranged on the platform. The box-type lower floating body multi-stand-column-type semi-submersible platform is compact and reasonable in structure, convenient to manufacture and install, suitable for deep and far sea environment, and applicable to the large size due to the facts that the lower floating body box-type through and multi-stand-column-type semi-submersible platform is adopted, and the lower floating body is a box-type body and is connected with the upper platform through the stand columns.

Description

Box lower many upright post types of buoyancy aid semisubmersible platform
Technical field
The present invention relates to Offshore Platform Design technical field, the far-reaching sea of especially a kind of adaptation, Li Island harbour, Li Island airport, box lower many upright post types of the buoyancy aid semisubmersible platform of marine reconfigurable ultra-large type.
Background technology
Semisubmersible platform of the prior art, all adopting underwater buoyant body is caisson type or for lower body formula.Caisson type is that several root posts are arranged on same circumference, and a lower body is established in each root post below; Lower body formula is the lower body apportion left and right of two torpedos, and the column number on every lower body can have 2 ~ 4.Semisubmersible platform is because lower buoyancy aid is immersed in water, and the amplitude of its rolling and pitching is all very little, but heaving is larger.
The trend of the oriented deep-sea development of existing semisubmersible platform and functional diversities, meet abundant Function Extension and resist the severe stormy waves condition in far-reaching sea and certainly will want increased in size, once the principal dimensions of platform is excessive, while reaching hundreds of meters, distance between increase column can seriously undermine the structural-load-carrying capacity of whole platform, if increase the sectional dimension of column or the quantity of column, improve structural strength, except meeting expends more material and fund, the column area not only increasing can suffer more serious wave load, and the waterplane increasing can reduce the rough water quality in its wave, the final in-use performance that affects platform.In addition, due to the randomness of wind direction in ocean and the uncertainty of wave, column face is subject to wave force inhomogeneous, once certain column because of fatigue failure or incident unstability impaired, will cause immeasurable loss.
Summary of the invention
The applicant, for the shortcoming in above-mentioned existing production technology, provides a kind of box lower many upright post types of buoyancy aid semisubmersible platform rational in infrastructure, thereby has increased the buoyancy of whole platform, improves stability in use, reliability.
The technical solution adopted in the present invention is as follows:
A kind of box lower many upright post types of buoyancy aid semisubmersible platform, comprise lower buoyancy aid, described lower buoyancy aid top connects upper mounting plate by many root posts, described lower buoyancy aid is parallel with upper mounting plate, the lower surface of described upper mounting plate is parallel to the water surface, the upper surface of described upper mounting plate is furnished with superstructure, is positioned on the deck of upper mounting plate and is provided with helicopter landing district, is also equipped with anchoring system on platform.
Further improvement as technique scheme:
The height of many root posts is consistent, and the cross sectional shape of described column is circle, ellipse, rectangle or polygon spatial structure, and outside from platform center, the sectional area of column increases gradually;
Described column adopts rectangular array or annular array arranged in form;
The larboard or the starboard place that are positioned at upper mounting plate are provided with loop wheel machine;
The structure of described anchoring system is: four groups of windlass of described upper mounting plate deck larboard bow, larboard stern, starboard bow, starboard stern, and every group of windlass is equipped with two anchor chains;
Described lower buoyancy aid is box watertight structure, and the length of described lower buoyancy aid is consistent with the length of upper mounting plate;
The horizontal section of described lower buoyancy aid is rectangle, polygon, circle or ellipsoidal structure, and the bow stern face of described lower buoyancy aid is provided with the gradient;
In described lower buoyancy aid, be provided with a large amount of cabins;
Described upper mounting plate is rectangular structure;
Described upper mounting plate is productive life district, Catering Area, material stores area and mechanical equipment district.
Beneficial effect of the present invention is as follows:
(1) compact conformation of the present invention, reasonable, makes with easy for installation, by adopting the box perforation of lower buoyancy aid, many upright post types half submerged floating platform; lower buoyancy aid is box body; by many root posts, be connected with upper mounting plate, adapt to dark pelagic environment, and be applicable to larger-size platform.
(2) the present invention has larger buoyancy.Known according to buoyancy theory, the buoyancy of buoyancy aid is directly proportional to displacement of volume.With respect to traditional semisubmersible platform, lower float structure of the present invention is large scale box body, significantly increases displacement of volume, thereby has increased the buoyancy of whole platform.
(3) the present invention has good stability.When the present invention adjusts in platform floading condition, the physical efficiency of floating downward provides larger countermoment.According to the stability theory of buoyancy aid, the in the situation that of same principal dimensions, this platform has larger horizontal stroke (indulging) metacentric radius with respect to traditional semi-submerged platform, and therefore platform of the present invention has good stability, can operation under deep water severe environmental conditions.
(4) the present invention has less motion.Known at the force analysis of motion response based on buoyancy aid, the vertical restoring force rigidity of swinging direction of buoyancy aid is directly proportional to lower buoyancy aid horizontal section area.With respect to the lower buoyancy aid of traditional semi-submerged platform, under box of the present invention, buoyancy aid has larger horizontal section area, and larger damping can be provided, and makes the vertical heave movement of platform in wave less, therefore can suppress preferably the heaving of platform.In addition, the waterplane area of whole platform is little, only has column at waterplane place, and the wave load acting on column that wave direction randomness produces is evenly distributed, and whole platform is less in Motion Waves.
(5) the present invention has good structural mechanical property.Column of the present invention will and lower buoyancy aid upper mounting plate structure consist of an integral structure, can effectively transmit because wave and platform overbalance load the interaction force between each column causing, many root posts provide enough large Joint strenght and rigidity.Column can be established elevation angle line style at the above certain altitude of waterline, to stop wave to climb; According to platform stability and variable load needs, when column horizontal sectional area is too large, can be by increasing column quantity to reduce horizontal section size; Size little water plane area of platform that makes in many root posts horizontal section is little, less in Motion Waves, effectively resistant function, in the environmental load of platform, does not exist as the weak structure of traditional semisubmersible platform tubulose stull, has improved the ability that platform adapts to severe marine environment.
(6) the present invention has good reconfigurability.Upper mounting plate of the present invention, bow stern is provided with adapter connector, be convenient to a plurality of platforms at sea bow stern be connected and be assembled into reconfigurable ultra-large type semisubmersible platform, the effect at performance air-sea port.
(7) platform exercise performance of the present invention is good, has unconditional stability, adapts to operating water depth scope wide, and overall construction intensity is good, can be applicable to far-reaching sea, Li Island harbour, Li Island airport, marine tender.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the lateral plan of Fig. 1.
Fig. 3 is the birds-eye view of underwater of the present invention.
Wherein: 1, superstructure; 2, upper mounting plate; 3, column; 4, lower buoyancy aid; 5, windlass; 6, anchor chain; 7, loop wheel machine.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
As shown in Figure 1, Figure 2 and Figure 3, box lower many upright post types of buoyancy aid semisubmersible platform of the present embodiment, comprise lower buoyancy aid 4, lower buoyancy aid 4 tops connect upper mounting plate 2 by many root posts 3, lower buoyancy aid 4 is parallel with upper mounting plate 2, and the lower surface of upper mounting plate 2 is parallel to the water surface, and the upper surface of upper mounting plate 2 is furnished with superstructure 1, be positioned on the deck of upper mounting plate 2 and be provided with helicopter landing district, on platform, be also equipped with anchoring system.
The height of many root posts 3 is consistent, and the cross sectional shape of column 3 is circle, ellipse, rectangle or polygon spatial structure, and outside from platform center, the sectional area of column 3 increases gradually.Each that can improve whole platform be to rigidity, and the suitable increasing section area of column on platform vertical and horizontal axis of symmetry improves the bending strength of whole platform.
According to the cross section type column 3 of lower buoyancy aid 4, adopt rectangular array or annular array arranged in form.Fuel, fresh water, power pipeline, transmission pump etc. can transfer to lower buoyancy aid 4 by column 3.
The larboard or the starboard place that are positioned at upper mounting plate 2 are provided with loop wheel machine 7.
The structure of anchoring system is: four groups of windlass 5 of upper mounting plate 2 deck larboard bows, larboard stern, starboard bow, starboard stern, every group of windlass 5 is equipped with two anchor chains 6.Mooring fast adopts 8 anchor chain modes of tradition, anchor chain-cable-anchor chain array mode or full nylon cable mode.
Lower buoyancy aid 4 is box watertight structure, has larger buoyancy and deposit space, multiple tracks watertight dividing plate is set and meets sinking resistent requirement; The length of lower buoyancy aid 4 is consistent with the length of upper mounting plate 2.Increase platform longitudinal strength and rigidity.
The horizontal section of lower buoyancy aid 4 is rectangle, polygon, circle or ellipsoidal structure, and the bow stern face of lower buoyancy aid 4 is provided with the gradient, with reduce the resistance when the towage and use in wave exciting force.
In lower buoyancy aid 4, be provided with a large amount of cabins.Can storage of fuels, the goods and materials such as fresh water.
Upper mounting plate 2 is rectangular structure.
Upper mounting plate 2 is productive life district, Catering Area, material stores area and mechanical equipment district.
Platform of the present invention can adopt a plurality of console module bow sterns to be connected, be assembled into ultra-large type floating aerodrome, airport etc. at sea, each console module size principal dimensions is the same, and function is different, can arrange respectively productive life district, behaviour area, arrange aircraft diamond etc.
Lower buoyancy aid 4 of the present invention is the reserve zones such as water, fuel, goods and materials and adjustment statokinetic ballast district, and column 3 is passage and transition region, and upper mounting plate 2 is productive life district, warehouse district.
When land lengths is greater than 300 meters, 20 ~ 30 columns 3 of arranged in arrays uniformly-spaced.Adopt uniformly-spaced arranged in arrays mode to guarantee that platform is stressed even in wave, Stability Analysis of Structures.Consider to reduce wave drag and convenient construction technique, column 3 can adopt rectangular array or annular array to arrange according to the cross section type of lower buoyancy aid 4, many root posts 3 of array distribution are shared and are born structural load between upper mounting plate 2 and lower buoyancy aid 4, can improve the intensity of whole platform, reduce platform structure distortion.
When land lengths is 100 meters ~ 300 meters, 12 ~ 20 columns 3 of arranged in arrays uniformly-spaced.
When land lengths is less than 100 meters, 6 ~ 12 columns 3 of arranged in arrays uniformly-spaced.
More than describing is explanation of the invention, is not the restriction to invention, and limited range of the present invention, referring to claim, within protection scope of the present invention, can be done any type of modification.

Claims (10)

1. box lower many upright post types of buoyancy aid semisubmersible platform, it is characterized in that: comprise lower buoyancy aid (4), described lower buoyancy aid (4) top connects upper mounting plate (2) by many root posts (3), described lower buoyancy aid (4) is parallel with upper mounting plate (2), the lower surface of described upper mounting plate (2) is parallel to the water surface, the upper surface of described upper mounting plate (2) is furnished with superstructure (1), is positioned on the deck of upper mounting plate (2) and is provided with helicopter landing district, is also equipped with anchoring system on platform.
2. box lower many upright post types of buoyancy aid semisubmersible platform as claimed in claim 1, it is characterized in that: the height of many root posts (3) is consistent, the cross sectional shape of described column (3) is circle, ellipse, rectangle or polygon spatial structure, outside from platform center, the sectional area of column (3) increases gradually.
3. box lower many upright post types of buoyancy aid semisubmersible platform as claimed in claim 1, is characterized in that: described column (3) adopts rectangular array or annular array arranged in form.
4. box lower many upright post types of buoyancy aid semisubmersible platform as claimed in claim 1, is characterized in that: the larboard or the starboard place that are positioned at upper mounting plate (2) are provided with loop wheel machine (7).
5. box lower many upright post types of buoyancy aid semisubmersible platform as claimed in claim 1, it is characterized in that: the structure of described anchoring system is: four groups of windlass (5) of described upper mounting plate (2) deck larboard bow, larboard stern, starboard bow, starboard stern, every group of windlass (5) is equipped with two anchor chains (6).
6. box lower many upright post types of buoyancy aid semisubmersible platform as claimed in claim 1, is characterized in that: described lower buoyancy aid (4) is box watertight structure, and the length of described lower buoyancy aid (4) is consistent with the length of upper mounting plate (2).
7. box lower many upright post types of buoyancy aid semisubmersible platform as claimed in claim 1, is characterized in that: the horizontal section of described lower buoyancy aid (4) is rectangle, polygon, circle or ellipsoidal structure, and the bow stern face of described lower buoyancy aid (4) is provided with the gradient.
8. box lower many upright post types of buoyancy aid semisubmersible platform as claimed in claim 1, is characterized in that: in described lower buoyancy aid (4), be provided with a large amount of cabins.
9. box lower many upright post types of buoyancy aid semisubmersible platform as claimed in claim 1, is characterized in that: described upper mounting plate (2) is rectangular structure.
10. box lower many upright post types of buoyancy aid semisubmersible platform as claimed in claim 1, is characterized in that: described upper mounting plate (2) is productive life district, Catering Area, material stores area and mechanical equipment district.
CN201410232158.1A 2014-05-29 2014-05-29 Box-type lower floating body multi-stand-column-type semi-submersible platform Pending CN104029799A (en)

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CN201410232158.1A CN104029799A (en) 2014-05-29 2014-05-29 Box-type lower floating body multi-stand-column-type semi-submersible platform

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105151241A (en) * 2015-07-30 2015-12-16 中国海洋石油总公司 Multi-stand-column semi-submersible platform for cylindrical floating box
CN105667725A (en) * 2016-02-26 2016-06-15 中交第二航务工程局有限公司 Semi-submersible type construction platform
CN106516031A (en) * 2016-12-21 2017-03-22 中国船舶工业集团公司第七0八研究所 Semisubmersible octagonal prism-shaped floating type nuclear power station carrier platform
CN109720507A (en) * 2019-01-02 2019-05-07 中国矿业大学 A kind of rigid elastic mooring deep-sea platform structure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6089175A (en) * 1996-11-27 2000-07-18 Mitsubishi Heavy Industries, Ltd. Wave-absorbing type large floating structure
CN102963507A (en) * 2012-11-30 2013-03-13 大连船舶重工集团有限公司 Annular lower floating body semi-submersible platform
CN103466052A (en) * 2013-09-12 2013-12-25 中国船舶重工集团公司第七○二研究所 Integral-floating-box-type semi-submersible platform
CN103466050A (en) * 2013-09-12 2013-12-25 中国船舶重工集团公司第七○二研究所 Three-floating-body type semi-submersible platform
CN103466051A (en) * 2013-09-12 2013-12-25 中国船舶重工集团公司第七○二研究所 Longitude and latitude type semi-submersible platform

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6089175A (en) * 1996-11-27 2000-07-18 Mitsubishi Heavy Industries, Ltd. Wave-absorbing type large floating structure
CN102963507A (en) * 2012-11-30 2013-03-13 大连船舶重工集团有限公司 Annular lower floating body semi-submersible platform
CN103466052A (en) * 2013-09-12 2013-12-25 中国船舶重工集团公司第七○二研究所 Integral-floating-box-type semi-submersible platform
CN103466050A (en) * 2013-09-12 2013-12-25 中国船舶重工集团公司第七○二研究所 Three-floating-body type semi-submersible platform
CN103466051A (en) * 2013-09-12 2013-12-25 中国船舶重工集团公司第七○二研究所 Longitude and latitude type semi-submersible platform

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105151241A (en) * 2015-07-30 2015-12-16 中国海洋石油总公司 Multi-stand-column semi-submersible platform for cylindrical floating box
CN105667725A (en) * 2016-02-26 2016-06-15 中交第二航务工程局有限公司 Semi-submersible type construction platform
CN105667725B (en) * 2016-02-26 2018-03-16 中交第二航务工程局有限公司 Semi-submersible type construction platform
CN106516031A (en) * 2016-12-21 2017-03-22 中国船舶工业集团公司第七0八研究所 Semisubmersible octagonal prism-shaped floating type nuclear power station carrier platform
CN109720507A (en) * 2019-01-02 2019-05-07 中国矿业大学 A kind of rigid elastic mooring deep-sea platform structure

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Application publication date: 20140910

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