EP0064214B1 - Dispositif de contrôle de charge sur les piles d'une plate-forme auto-élévatrice - Google Patents

Dispositif de contrôle de charge sur les piles d'une plate-forme auto-élévatrice Download PDF

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Publication number
EP0064214B1
EP0064214B1 EP82103304A EP82103304A EP0064214B1 EP 0064214 B1 EP0064214 B1 EP 0064214B1 EP 82103304 A EP82103304 A EP 82103304A EP 82103304 A EP82103304 A EP 82103304A EP 0064214 B1 EP0064214 B1 EP 0064214B1
Authority
EP
European Patent Office
Prior art keywords
platform
load
upper support
piles
cushions
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
EP82103304A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0064214A1 (fr
Inventor
Jean Paul Colin
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.)
Alsthom Atlantique 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 EP0064214A1 publication Critical patent/EP0064214A1/fr
Application granted granted Critical
Publication of EP0064214B1 publication Critical patent/EP0064214B1/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

Definitions

  • the simplest method for applying this preload is to release the force on certain stacks by lifting these stacks slightly with the aid of the moving parts, which has the effect of transferring the charge to the other stacks.
  • the spreaders are weakened in a part where they must work, and moreover, the force on these cylinders is very important under the effect of the elastic deformations of the spreaders and the tolerances to the construction and the clearances between the batteries and their guides.
  • the device for measuring the load on the piles of a jack-up platform which does not have these drawbacks is characterized in that it comprises, between each upper support structure and the associated lifting beam, a cushion hydraulic housed in housing means guided by guide means, the housing means and the guide means being integral with one of the lifting beam, the other with said upper support structure and being arranged so as to allow the stack to take a slightly inclined position with respect to the platform, and in that the hydraulic cushions associated with all the upper support structures of the mobile assemblies of a stack are connected, on the one hand, to each other and, on the other hand, to means sensitive to the pressure of the fluid inside the cushions and displaying a quantity representative of the charge of the battery considered.
  • the hydraulic cushions of the same stack adapt very easily between the lifting mechanism and the spreaders without requiring a large arrangement of spreaders.
  • they give this joint a ball joint function which allows the stack to take a slight inclination relative to the platform.
  • the pressure-sensitive means may be a pressure gauge graduated in units of load.
  • the pressure gauge can then be a conventional pressure gauge with linear graduations.
  • Figure 1 there is shown schematically, in top view, a platform of the barge type.
  • the platform 1 comprises four cylindrical stacks 2 movable vertically with respect to the platform.
  • Stack 2 has two double racks 4 in T, integral with said stack, each rack 4 being associated with a movable assembly 5.
  • the moving element 5 is shown side view in FIG. 3.
  • This moving element 5 comprises driving pinions 6 cooperating with each element 7 of the double rack 4.
  • the moving element 5 is provided at its lower part with two lower bearing surfaces 10 which can be supported on pads 10 ′ secured to the platform 1.
  • the lifting beam 3 associated with each moving element 5 has a form of gantry, the base of which is secured to the platform 1.
  • each upper support structure 9 and the lifter 3 is disposed a hydraulic cushion 11. There are therefore four cushions per stack.
  • FIG. 4 represents a vertical section IV-IV in FIG. 5 and in FIG. 5 which represents a horizontal section V-V in FIG. 4.
  • the cushion 11 is placed in a protective housing 12 secured to the upper support structure 9.
  • Guide stops 13 secured to the lifter 3 frame the sides of the housing 12 with some play.
  • the housing 12 has on its bottom an opening through which passes a flexible hydraulic connection 14 with the cushion.
  • the hydraulic cushions will not themselves be described in more detail, they will be of the type described in particular in the document FR-A 2 305 381.
  • the cushions 11 are connected two by two by a pipe 15 provided with two valves 16, each associated with a cushion.
  • the two pipes 15 connecting the cushions two by two are joined together by a pipe 17 provided with two valves 18, each associated with a pair of cushions 11.
  • Line 17 is connected via a valve 19 to a pressure gauge 20, via a valve 21 to a source of pressurized liquid (not shown) and via a valve 22 to a hydropneumatic accumulator 23.
  • the cushions 11 are inflated, if this has not been done previously, at a relatively low pressure (for example 10 bars, with square cushions of 1 mx 1 m).
  • the piles are lowered by releasing the pinions 6.
  • the pinions 6 are rotated, so as to raise the movable assemblies 5.
  • the support structures take off pads 10 ', which has the effect of raising the platform 1 relative to the stacks.
  • Each cell is then precharged by charging the cell in question, for example, twice its normal charge by lowering the moving parts of the other cells.
  • the pressure gauge 20 can be graduated in tonnes and allows the load to be read directly.
  • the mobile equipment is adjusted in position, so that the load is the same on each stack.
  • the device comprises a hydropneumatic accumulator 23, which makes it possible to absorb the shocks on each cell (the valve 22 being open)
  • a variation in pressure can be detected with the pressure gauge 20 which can be converted into a variation in charge by having the load pressure variation curve which depends on the hydropneumatic accumulator and which is established experimentally.
  • the dial of the pressure gauge can be graduated directly in tonnes and we can, if we want this graduation to be linear, vary the detected signal according to the load pressure curve; you can also transmit and display the measured quantity.
  • the valve 19 can be used by opening it more or less to stop the vibrations which are reflected on the pressure gauge 20.
  • valves 18 and 19 When it is desired to vary the characteristics of the accumulator 23, the valves 18 and 19 are closed and the valves 21 and 22 are opened in order to be able to put the desired quantity of fluid in the accumulator.
  • valves 16 and 18 are still open, but in the event that a cushion leaks, the corresponding valve 16 is closed, the pressure gauge 20 then indicating, the average pressure of the 3 remaining cushions.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
EP82103304A 1981-04-23 1982-04-20 Dispositif de contrôle de charge sur les piles d'une plate-forme auto-élévatrice Expired EP0064214B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8108095 1981-04-23
FR8108095A FR2504676A1 (fr) 1981-04-23 1981-04-23 Dispositif de controle de charge sur les piles d'une plate-forme autoelevatrice

Publications (2)

Publication Number Publication Date
EP0064214A1 EP0064214A1 (fr) 1982-11-10
EP0064214B1 true EP0064214B1 (fr) 1984-09-26

Family

ID=9257700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82103304A Expired EP0064214B1 (fr) 1981-04-23 1982-04-20 Dispositif de contrôle de charge sur les piles d'une plate-forme auto-élévatrice

Country Status (4)

Country Link
EP (1) EP0064214B1 (no)
JP (1) JPS6018767B2 (no)
FR (1) FR2504676A1 (no)
NO (1) NO156145C (no)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR1006016B (el) * 2007-07-13 2008-07-31 Αναστασιος Μαϊλης Συστημα ανυψωσης και μετακινησης σκαφων και συναφων πλωτων ναυπηγηματων.
CN101846561B (zh) * 2010-06-18 2011-07-20 长沙理工大学 软土地区摩擦桩荷载传递曲线测定仪
RU2752242C1 (ru) 2017-12-29 2021-07-23 Телефонактиеболагет Лм Эрикссон (Пабл) Способы, обеспечивающие возможность двойного подключения для избыточных путей плоскости пользователя, и соответствующие сетевые узлы

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1447609A (en) * 1920-09-09 1923-03-06 Zucco Pierre Concrete piling of indefinite length
FR697339A (fr) * 1930-02-08 1931-01-15 Pieux Simplex Super Chabot Et Pilotis
US3721095A (en) * 1971-08-23 1973-03-20 Bolt Associates Inc Controllable force method and system of driving piles
FR2305381A1 (fr) * 1975-03-26 1976-10-22 Kleber Colombes Coussin gonflable de calage ou de levage
US3986368A (en) * 1975-05-27 1976-10-19 Levingston Shipbuilding Company Load equalizing and shock absorber system for off-shore drilling rigs
NL7713674A (nl) * 1977-12-09 1979-06-12 Stevin Baggeren Bv Werkplatform.

Also Published As

Publication number Publication date
FR2504676B1 (no) 1984-01-27
EP0064214A1 (fr) 1982-11-10
NO156145C (no) 1987-07-29
NO156145B (no) 1987-04-21
FR2504676A1 (fr) 1982-10-29
JPS6018767B2 (ja) 1985-05-13
NO821304L (no) 1982-10-25
JPS58101919A (ja) 1983-06-17

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