EP0055185B1 - Dispositif pour amortir les chocs entre une charge et un support flottant au moment de l'enlèvement de la charge - Google Patents

Dispositif pour amortir les chocs entre une charge et un support flottant au moment de l'enlèvement de la charge Download PDF

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Publication number
EP0055185B1
EP0055185B1 EP81402049A EP81402049A EP0055185B1 EP 0055185 B1 EP0055185 B1 EP 0055185B1 EP 81402049 A EP81402049 A EP 81402049A EP 81402049 A EP81402049 A EP 81402049A EP 0055185 B1 EP0055185 B1 EP 0055185B1
Authority
EP
European Patent Office
Prior art keywords
load
floating support
support
absorbing
shocks
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
EP81402049A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0055185A1 (fr
Inventor
Jean-Louis Ninet
Robert Vaillant
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.)
Alstom SA
Original Assignee
Alsthom Atlantique SA
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 Alsthom Atlantique SA filed Critical Alsthom Atlantique SA
Publication of EP0055185A1 publication Critical patent/EP0055185A1/fr
Application granted granted Critical
Publication of EP0055185B1 publication Critical patent/EP0055185B1/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
    • E02B17/021—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 with relative movement between supporting construction and platform
    • E02B17/024—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 with relative movement between supporting construction and platform shock absorbing means for the supporting construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/003—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for for transporting very large loads, e.g. offshore structure modules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F19/00—Hoisting, lifting, hauling or pushing, not otherwise provided for

Definitions

  • the present invention relates to a device for absorbing shocks between a load and a floating support at the time of removal of the load from the floating support, said support comprising at least one casing on which the load rests and with which a damping member is associated.
  • a device for absorbing shocks between a load and a floating support at the time of removal of the load from the floating support, said support comprising at least one casing on which the load rests and with which a damping member is associated.
  • Such a device is known, for example, from NL-A-7 801 724.
  • the present invention aims to overcome these drawbacks and relates to a device for absorbing shocks between a load and a floating support comprising the characteristics described in the claim.
  • Fig. 4 is a section on IV-IV of FIG. 1 in enlarged view.
  • Fig. 5 is a section V-V of FIG. 4.
  • Fig. 6 gives a general presentation of a particular application of the invention in the particularly interesting case of the removal of a marine platform from its transport barge and its installation on a fixed structure previously installed.
  • the circled part A of this figure being detailed in the previous figures.
  • the device according to the invention firstly comprises externally a cabin 10 integral with a floating support 70 of a load 1.
  • the casing 10 has on two of its faces massive parts 30. Inside this casing is disposed a jacket 11 comprising a cylindrical side wall 12 and a bottom 13 at the upper part of the side wall. At the bottom of the jacket 11 is placed a shock absorber 14, for example an elastomer block. Under this shock absorber, a wedge 15 with an inclined lower face 16 is placed. This wedge is placed at the bottom of a cylindrical box 17 which can slide vertically in the jacket 11 by more or less compressing the damper 14.
  • a corner 18 with an inclined upper face 60 cooperates with the wedge 15 and passes through the cabin 10, the jacket 11 and the box 17 by slots 19 made in the solid parts 30 of the cabin 10, 20 made in the jacket 11 and 21 practiced in the box 17.
  • the corner 18 rests on the bottom 50 of the slots 19 made in the solid parts 30; pulling the wedge 18 in the direction of the arrow F causes the wedge 15 to rise and, in the absence of high weight on the top of the bottom 13 of the liner 11, that of the damping member 14 and the shirt 11 as seen in fig. 2.
  • the tensile force in the direction of arrow F can be achieved in any way: stretched nylon, weight suspended on the edges of the floating support with return pulley ...
  • the stroke of the corner 18 is limited by a stop 61.
  • the wedge 18 is in the position where it is shown in FIG. 1.
  • the wedge 15 and the jacket 11 are in the low position, the assembly is returned to the cabin 10 and the load 1 rests on the casing (FIGS. 1 and 4).
  • the jacket 11 is relieved of its weight and under the force exerted on the wedge 18 in the direction of the arrow F, the corner is moved which causes the rise of the wedge 5 and with it, that of the armotor 14 and the jacket 11.
  • the floating support 70 rises under the effect of a wave top, and the load has not yet been sufficiently high, the weight of the latter then compresses the damper 14 such that see it in fig. 3.
  • the device makes it possible to automatically insert, and only when the load is removed, a damping device between the load and its floating support.
  • the angle of the corner 18 is calculated taking into account the coefficient of friction and the force F so that the movement is irreversible whatever the load on the jacket 11.
  • Fig. 6 shows a particularly interesting application of the discharge of a marine platform from a transport barge and its installation on a fixed structure previously installed.
  • the figure shows a platform 1 supported by a floating barge 2.
  • the platform must be installed on a support structure comprising feet 3 which emerge and which include centering cones 40.
  • the platform 2 is equipped with batteries 4 mobile thanks to a lifting system 5.
  • the batteries have inside a damping device comprising a pin 6 bearing against a shock absorber 7 made of elastomer for example.
  • a jack 8 associated with removable wedges 9 allows the final docking of the stacks 4 against the feet 3 and makes it possible to carry out the welds between the stacks and the feet while the load of the platform does not yet or entirely rest on the top of the feet but only on the centering cones 40 via the pin 6, the shock absorber 7 and the jack 8.
  • This device is described in detail in the application of EP-A-0 054 914 filed by the Applicant company and entitled "Device for the establishment of a marine platform on the support structure".
  • the device according to the invention A has been placed, described in detail in the preceding figures.
  • the platform 1 is raised from the barge 2, by means of the machinery 5 which first of all lowers the stack 4 until the pinoche 6 makes contact with the centering cone 4, the effects of the swell being damped by the damper 7; at the same time, the shocks between the barge 2 and the platform 1, consecutive to a crest of swell succeeding a hollow during which the platform taking support on the feet 3 took off from the barge 2, are absorbed by to devices according to the invention and described above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Chemical & Material Sciences (AREA)
  • Transportation (AREA)
  • Civil Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Vibration Dampers (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
EP81402049A 1980-12-23 1981-12-22 Dispositif pour amortir les chocs entre une charge et un support flottant au moment de l'enlèvement de la charge Expired EP0055185B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8027348 1980-12-23
FR8027348A FR2496624A1 (fr) 1980-12-23 1980-12-23 Dispositif pour amortir les chocs entre une charge et un support flottant au moment de l'enlevement de la charge

Publications (2)

Publication Number Publication Date
EP0055185A1 EP0055185A1 (fr) 1982-06-30
EP0055185B1 true EP0055185B1 (fr) 1984-08-29

Family

ID=9249416

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81402049A Expired EP0055185B1 (fr) 1980-12-23 1981-12-22 Dispositif pour amortir les chocs entre une charge et un support flottant au moment de l'enlèvement de la charge

Country Status (7)

Country Link
US (1) US4408930A (enExample)
EP (1) EP0055185B1 (enExample)
JP (1) JPS57502009A (enExample)
DE (1) DE3165799D1 (enExample)
FR (1) FR2496624A1 (enExample)
NO (1) NO152803C (enExample)
WO (1) WO1982002220A1 (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174648B (en) * 1985-04-29 1988-10-12 Heerema Engineering Installation and removal vessel
US4655641A (en) * 1985-10-18 1987-04-07 Exxon Production Research Co. Apparatus for aligning a platform deck and jacket
USH488H (en) 1986-08-01 1988-07-05 Hydraulic jacks for controlled load transfer
GB2239280B (en) * 1989-12-06 1993-06-23 Marathon Oil Co Motion absorbing docking assembly
US5035395A (en) * 1989-12-15 1991-07-30 Bigge Crane And Rigging Co. Support cradle for load equalization
US5553977A (en) * 1994-12-16 1996-09-10 Northrop Grumman Corporation Off-shore platform construction, and method for transferring loads
DE29716792U1 (de) * 1997-09-18 1997-11-13 Air-Loc Schrepfer AG, Küsnacht Einrichtung zur Vergrößerung des Höheneinstellbereichs in einem Nivellierschuh und mit dieser versehener Nivellierschuh
NL2014042B1 (en) * 2014-12-23 2016-10-12 Heerema Marine Contractors Nl Support device configured to be positioned on a lifting vessel in order to lift a topside from its support structure.
CN107381448A (zh) * 2017-06-08 2017-11-24 安徽机电职业技术学院 一种楔块推升式顶升机械

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734739A (en) * 1956-02-14 Messina
US2262443A (en) * 1940-06-29 1941-11-11 Mathews Conveyer Co Roller conveyer
US2817212A (en) * 1954-10-25 1957-12-24 Frederick Snare Corp Method for erecting and dismantling support structure
US2881590A (en) * 1955-12-16 1959-04-14 Shell Oil Co Loading apparatus
FR1214760A (fr) * 1958-02-03 1960-04-12 Bataafsche Petroleum Procédé pour enlever une plate-forme d'un dispositif à supports placé dans l'eauou pour l'y poser et installation pour exécuter ce procédé
NL142746B (nl) * 1965-01-08 1974-07-15 Gusto Fa Nv Booreiland of dergelijk platform.
US3376031A (en) * 1965-10-19 1968-04-02 Destech Labs Inc Shock absorber
US3606295A (en) * 1968-11-12 1971-09-20 Unilan Ag Shock absorber
US3871527A (en) 1973-04-04 1975-03-18 Westinghouse Electric Corp Ram tensioning device
NL7400716A (en) * 1974-01-18 1975-07-22 Hattum & Blankevoort Bv Shock absorber for off-shore oil well operating platform - with legs able to be lowered to the seabed
DE2432898C2 (de) * 1974-07-09 1976-07-29 Kober Ag Gleitkipplager fur brucken od. ahnliche tragwerke
US3986368A (en) 1975-05-27 1976-10-19 Levingston Shipbuilding Company Load equalizing and shock absorber system for off-shore drilling rigs
FR2383118A1 (fr) 1977-03-10 1978-10-06 Metalliques Entrepr Cie Fse Perfectionnements apportes aux ensembles du genre des plates-formes pour installations petrolieres sur fond marin ou autre, ou aux ensembles y assimilables
NL7801724A (en) * 1978-02-15 1979-08-17 Kens B V Vessel for raising and conveying offshore platform - uses hydraulic jacks coupled to pressure accumulator to absorb shocks caused by impact
GB2022662B (en) 1978-04-03 1982-04-21 Brown & Root Methods of and apparatus for forming offshore structures
NL7804479A (en) * 1978-04-26 1979-10-30 Verolme Maschf Engineering Com Mobile offshore drilling platform with retractable piles - has cushions between pile climbing mechanism and pontoon pressurised when pontoon is floating
US4195950A (en) 1978-08-17 1980-04-01 Goldman Jerome L Shock absorbing structure and method for off shore jack-up rigs
JPS59165701U (ja) * 1983-04-21 1984-11-07 パイオニア株式会社 冷間圧延機

Also Published As

Publication number Publication date
NO152803C (no) 1985-11-20
FR2496624A1 (fr) 1982-06-25
FR2496624B1 (enExample) 1985-05-10
NO152803B (no) 1985-08-12
US4408930A (en) 1983-10-11
DE3165799D1 (en) 1984-10-04
NO814408L (no) 1982-06-24
WO1982002220A1 (fr) 1982-07-08
EP0055185A1 (fr) 1982-06-30
JPS57502009A (enExample) 1982-11-11

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