EP0099938B1 - Substructure sous-marine et son installation en grandes profondeurs, pour des plate-formes auto-élévatrices en mer - Google Patents

Substructure sous-marine et son installation en grandes profondeurs, pour des plate-formes auto-élévatrices en mer Download PDF

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Publication number
EP0099938B1
EP0099938B1 EP19820106808 EP82106808A EP0099938B1 EP 0099938 B1 EP0099938 B1 EP 0099938B1 EP 19820106808 EP19820106808 EP 19820106808 EP 82106808 A EP82106808 A EP 82106808A EP 0099938 B1 EP0099938 B1 EP 0099938B1
Authority
EP
European Patent Office
Prior art keywords
fact
installation
main supporting
beams
supporting frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP19820106808
Other languages
German (de)
English (en)
Other versions
EP0099938A1 (fr
Inventor
Giunio Guido Santi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE8282106808T priority Critical patent/DE3270405D1/de
Priority to EP19820106808 priority patent/EP0099938B1/fr
Priority to AU86792/82A priority patent/AU555240B2/en
Priority to CA000408885A priority patent/CA1203989A/fr
Publication of EP0099938A1 publication Critical patent/EP0099938A1/fr
Application granted granted Critical
Publication of EP0099938B1 publication Critical patent/EP0099938B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
    • E02B17/027—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto steel structures
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0039—Methods for placing the offshore structure
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0039—Methods for placing the offshore structure
    • E02B2017/0043—Placing the offshore structure on a pre-installed foundation structure

Definitions

  • the invention relates to an underwater substructure system according to the preamble of claim 1.
  • the object of the invention is to provide an underwater substructure system that allows the installation of a fixed, stable, anchored in the sea floor, constantly submerged substructure even for greater depths and is not exposed to any stresses from wind and waves.
  • an underwater substructure system for installation at great depths for self-lifting platforms in the sea which consists of three or more main girders which remain constantly underwater and are each swingably mounted with their lower ends on a supporting frame anchored in the seabed by means of piles that the main beams are connected to one another by means of a connecting frame by means of double hinges, the one of the self-supporting platform, or an intermediate structure, preferably being placed on the substructure by means of a fin-like structure, which is likewise connected to the upper ends of the main beams by means of hinges connected is.
  • the lower ends of the main girders are preferably connected to the respective supporting frame via a universal joint.
  • Main beams have ballast material in their lower ends and buoyancy material in their upper ends.
  • Cable winches with cables are also provided for the installation on the individual parts of the system to be connected to one another.
  • the main girders consisting of a tubular structure are suitable for the formation of storage containers, e.g. for crude oil.
  • the complete system shown in Figures 1 and 2 consists of the known, self-lifting platform 11, the legs 10 of which are connected to the legs 9 of an optional intermediate structure, which is placed on a fin-like structure 8, which in turn by means of double hinges 5 the upper ends of the five main beams 2 of the substructure system according to the invention are connected in the example shown.
  • the lower ends of the main girders 2 are each connected to a support frame 1 by means of a universal joint 13, which is anchored in the seabed by means of a pawl 4.
  • the upper ends of the main beams 2 are connected to one another by means of a horizontal connecting frame 3 via double hinges 6, 7.
  • FIG. 1 To the right of FIG. 1 is a sectional view of a main carrier, the dimensions of which are suitable for the formation of storage tanks for crude oil.
  • the lower ends of the main beams 2 contain ballast material and the upper ends contain buoyancy material, as indicated in FIG. 1 by 14 and 15.
  • the piles 4 with the support frame 1 are driven into the seabed at the measured base points, as shown in FIG.
  • the main beams 2 are floating over brought the base points and thanks to their ballasts 14 and buoyancy materials 15 placed vertically above the base points on the sea floor, as shown in Fig. 6.
  • the length of the individual carriers 2 is determined by the measured quotas of the individual base points, which in the example, according to FIG. 1, are up to 200 m apart.
  • a winch 16 with rope 17 is arranged in the lower end of each carrier 2.
  • the free end of the rope 17 is connected to the support frame 1 by means of the (Smg); thereupon, also with the help of (Smg,), a quantity of the ballast material 14 is drawn off via a hose line 20 such that the carrier 2, thanks to the buoyancy material 15 in its upper end, assumes the position shown in FIG. 7.
  • the side 18 is pulled off the winches 19 attached to the universal joint 13 and connected to the support frame 1 - see FIG. 8.
  • the winches 19 - via the submarine (Smg) the ropes 18 are again removed from the winches 19 wound and thus the carrier 2 lowered and inserted with its universal joint 13 into the support frame 1 - see Fig. 9. Thanks to the buoyancy material 15 in the upper end, the carrier 2 remains in a vertical position.
  • the connecting frame 3 is brought into position according to FIG. 10 and connected to the carriers 2 by means of ropes 22, which can be done with the help of a diving bell 23 or with the help of the submarine (Smg).
  • the connecting frame 3 is lowered and the supports 2 are inclined so far that the hinge parts 6, 7 on the connecting frame 3 come into contact with the corresponding hinge parts 6, 7 on the supports 2, whereupon the bolts in the hinges are used so that the position shown in Fig. 11 is formed.
  • the self-lifting platform 11 can be mounted either directly or, as in the example shown, via an intermediate structure with brines 9 and fin-like structure 8.
  • winches 24 with ropes 25 are provided on the structure 8, the free ends of which are connected to the upper ends of the supports 2, so that the structure 8 can be lowered by actuating the winches 24 and by means of hinges 5 (FIG. 1) with the supports 2 can be connected - see Figures 12 and 13.
  • the cardan joints 13 are poured into the supporting frame 1 by means of cement - see FIG. 14.
  • ballast material 14 and the buoyancy material 15 are brought into a ratio in the carriers 2 such that the carriers 2 are under their own stress and each carrier 2 is in equilibrium with its universal joint 13 on the supporting frame 1.
  • the 15 shows a modified mounting of the supports 2 on the support frame 1, wherein instead of the universal joint, the supports 2 are placed on the support frame 1 by gravity, with a corresponding hemispherical shape 13.
  • the substructure according to the invention can also be doubled by stacking two substructure systems of this type, the lower end of the lower system being designed as shown and the upper system on the lower by means of a fin-like Form 8 - as in Fig. 1 - can be placed.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Revetment (AREA)
  • Foundations (AREA)

Claims (11)

1) Système de substruction sous-marine, appropriée pour de grandes profondeurs pour une plate-forme auto-haussante et son installation en mer, consistant au moins de trois poutres principales (2) dont les extrémités inférieures sont accrochées d'une manière oscillante chacune sur un cadre porteur (1) ancré sur le fond de la mer moyennant des poteaux (4), caractérisé en ce que les extrémités supérieures des poutres principales (2) sont raccordées entre elles moyennant un cadre de raccordement (3) par l'intermédiaire de doubles charnières (6,7).
2) Substruction sous-marine suivant la revendication 1, caractérisée en ce que la plate-forme auto-hausssante (11), est raccordée aux extrémités supérieures du système de substruction, moyennant une structure type radeau (8) par l'intermédiaire de montants (10) et/ou moyennant une structure intermédiaire (9), par l'entrmise de charnières (5).
3) Substruction sous-marine suivant la revendication 1, caractérisée en ce que les extrémités inférieures des poutres principales (2), sont raccordées au cadre porteur (1) respectif, moyennant une articulation cardan (13).
4) Système suivant les revendications 1 et 3, caractérisé en ce que les poutres principales (2) contiennent du matériau de lest (14) dans leurs extremités inférieures et du matériau portant (15) dans leurs extrémités supérieures.
5) Système suivant les revendications de 1 à 4, caractérisé en ce que chacune des poutres principales (2), à proximité de l'extrémité inférieure contient un treuil à câble (16) avec le câble (17), où l'extrémité libre du câble, pour l'installation, est déroulée par le treuil, est raccordée au cadre porteur (1) et, ensuite, est de nouveau enroulée.
6) Système suivant les revendications de 1 à 5, caractérisé en ce que sur l'articulation cardan (13) appliquée à l'extrémité inférieure de la poutre principale (2), sont prévus deux treuils (19) avec câble (16) dont les extrémités libres, pour l'installation, sont déroulées, raccordées au cadre porteur (1) et, ensuite,-enroulées de nouveau.
7) Système suivant les revendications de 1 à 6, caractérisé en ce que dans le cadre de raccordement (3), sont prevus des treuils à câble (21) avec câbles (22), dont les extrémités libres, pour l'installation sont déroulées, raccordées avec les extrémités supérieures des poutres principales (2) et, ensuite, enroulées de nouveau.
8) Système suivant les revendications de 1 à 7, caractérisé en ce que dès que l'accrochage de l'articulation cardan (13) sur le cadre porteur (1) a eu lieu, ce dernier est coulé en ciment.
9) Système suivant les revendications de 1 à 8, caractérisé en ce que les poutres principales (2) sont logées, moyennant un élément (13) hémisphérique (Fig. 15), dans un cadre porteur (1) de forme correspondante.
10) Système suivant les revendications de 1 à 9, caractérisé en ce que les poutres principales (2) sont raccordées entre elles moyennant des poutres horizontales de raccordement entre les extrémités supérieures et inférieures des poutres principales (2)
11) Système suivant les revendications de 1 à 10, caractérisé en ce que deux système de substruction, sont disposés, suivant l'invention, l'un sut l'autre.
EP19820106808 1982-07-28 1982-07-28 Substructure sous-marine et son installation en grandes profondeurs, pour des plate-formes auto-élévatrices en mer Expired EP0099938B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE8282106808T DE3270405D1 (en) 1982-07-28 1982-07-28 Under-water supporting construction and its installation in deep waters for self raising sea platforms
EP19820106808 EP0099938B1 (fr) 1982-07-28 1982-07-28 Substructure sous-marine et son installation en grandes profondeurs, pour des plate-formes auto-élévatrices en mer
AU86792/82A AU555240B2 (en) 1982-07-28 1982-08-05 Offshore platform
CA000408885A CA1203989A (fr) 1982-07-28 1982-08-06 Fondation modulaire sous-marine pour plate-forme auto-elevatrice de forage sur grands fonds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19820106808 EP0099938B1 (fr) 1982-07-28 1982-07-28 Substructure sous-marine et son installation en grandes profondeurs, pour des plate-formes auto-élévatrices en mer

Publications (2)

Publication Number Publication Date
EP0099938A1 EP0099938A1 (fr) 1984-02-08
EP0099938B1 true EP0099938B1 (fr) 1986-04-09

Family

ID=8189149

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820106808 Expired EP0099938B1 (fr) 1982-07-28 1982-07-28 Substructure sous-marine et son installation en grandes profondeurs, pour des plate-formes auto-élévatrices en mer

Country Status (4)

Country Link
EP (1) EP0099938B1 (fr)
AU (1) AU555240B2 (fr)
CA (1) CA1203989A (fr)
DE (1) DE3270405D1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO155297C (no) * 1984-12-04 1987-03-11 Norsk Hydro As Faststaaende marin staalkonstruksjon og fremgangsmaate og middel for sammensetning av konstruksjonen.
US4669918A (en) * 1986-02-04 1987-06-02 Riles William G Offshore platform construction including preinstallation of pilings
AU685637B2 (en) 1994-05-02 1998-01-22 Shell Internationale Research Maatschappij B.V. A method for templateless foundation installation of a TLP
BR102012031610B1 (pt) * 2012-12-11 2022-03-08 Marcelo Caire Plataforma flutuante sub-fixa

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1423492A (en) * 1973-05-04 1976-02-04 Fluor Corp Offshore platform structures and method for the construction thereof
FR2359248A1 (fr) * 1976-07-23 1978-02-17 Doris Dev Richesse Sous Marine Ouvrage oscillant a installer dans une nappe d'eau et procede pour sa construction
DE2736937C3 (de) * 1977-08-16 1981-04-16 Howaldtswerke-Deutsche Werft Ag Hamburg Und Kiel, 2300 Kiel Verfahren zum Bau eines Offshore-Bauwerkes
GB2054710A (en) * 1979-05-25 1981-02-18 Cjb Bearl & Wright Ltd Levelling seabed templates
DE2938181A1 (de) * 1979-09-21 1981-04-09 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg Offshore-plattform

Also Published As

Publication number Publication date
CA1203989A (fr) 1986-05-06
DE3270405D1 (en) 1986-05-15
AU8679282A (en) 1984-02-09
EP0099938A1 (fr) 1984-02-08
AU555240B2 (en) 1986-09-18

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