EP0064214A1 - Device controlling the load on the legs of a self-elevating platform - Google Patents

Device controlling the load on the legs of a self-elevating platform Download PDF

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Publication number
EP0064214A1
EP0064214A1 EP82103304A EP82103304A EP0064214A1 EP 0064214 A1 EP0064214 A1 EP 0064214A1 EP 82103304 A EP82103304 A EP 82103304A EP 82103304 A EP82103304 A EP 82103304A EP 0064214 A1 EP0064214 A1 EP 0064214A1
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EP
European Patent Office
Prior art keywords
platform
upper support
load
integral
cushions
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Granted
Application number
EP82103304A
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German (de)
French (fr)
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EP0064214B1 (en
Inventor
Jean Paul Colin
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Alsthom Atlantique SA
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Alsthom Atlantique SA
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Publication of EP0064214A1 publication Critical patent/EP0064214A1/en
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Publication of EP0064214B1 publication Critical patent/EP0064214B1/en
Expired legal-status Critical Current

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    • 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 have to work, and moreover, the force on these jacks is very high under the effect of the elastic deformations of the spreaders and the construction tolerances and of the clearances between the piles 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.
  • the stack 2 comprises 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 part 5 is provided at its lower part with 2 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. So there are 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 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 platform When the platform has been brought floating to its working position, it is inflated, if this has not been done previously, the cushions 11 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 manometer 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 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 always 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.

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  • 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)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

1. A device for measuring the load on piles of a self-raising platform (1), said platform (1) comprising a plurality of mobile units (5) with drive gears (6) which mesh with racks (4) integral with the piles (2), said mobile units (5) each having at least one upper support structure (9) bearing on beams (3) which are integral with the platform (1) when the piles (2) rest on the bottom and said platform (1) is raised above the water, characterized in that it includes, between each upper support structure (9) and the associated beam (3), a hydraulic cushion (11) inserted in housing means (12) guided by guide means (13), the housing means (12) and the guide means (13) being integral with the beam (3) and with said upper support structure (9) respectively and being disposed so as to allow the pile (2) to assume a slightly inclined position relative to the platform (1), and in that the hydraulic cushions (11) associated with all the upper support structures (9) of the moving units (5) of a pile are interconnected on the one hand and connected on the other hand to means (20) which are sensitive to the pressure of the fluid inside the cushions (11) and said means displaying a magnitude which is representative of the load on the pile (2) in question.

Description

La présente invention concerne un dispositif de contrôle de charge d'une plate-forme auto-élévatrice, ladite plate-forme comprenant plusieurs équipages mobiles ayant des pignons moteurs s'engrenant sur des crémaillères solidaires des piles,

  • - lesdits équipages mobiles présentant chacun au moins une structure d'appui supérieure et au moins une structure d'appui inférieure,
  • - les structures d'appui supérieures s'appuyant sur des palonniers solidaires de la plate-forme, lorsque les piles reposent sur le fond et que ladite plate-forme est élevée au-dessus de l'eau,
  • - les structures d'appui inférieures s'appuyant sur la plate-forme pour maintenir les piles relevées lorsque la plate-forme flotte sur l'eau.
The present invention relates to a device for controlling the load of a self-elevating platform, said platform comprising several mobile assemblies having drive pinions meshing on racks secured to the piles,
  • - said moving parts each having at least one upper support structure and at least one lower support structure,
  • - the upper support structures resting on lifting beams secured to the platform, when the piles rest on the bottom and that said platform is raised above water,
  • - the lower support structures resting on the platform to keep the piles raised when the platform floats on water.

On sait que dans des plates-formes de ce type utilisées pour le forage en mer la tenue du sol sous les pieds des piles pose un problème. C'est pourquoi il est connu d'appliquer une charge élevée appelée précharge sur chacune des piles lors de l'installation de la plate-forme pour s'assurer que le sol résiste suffisamment.It is known that in platforms of this type used for drilling at sea, the holding of the soil under the feet of the piers poses a problem. This is why it is known to apply a high load called preload on each of the piles when installing the platform to ensure that the soil resists sufficiently.

La méthode la plus simple pour appliquer cette précharge consiste à relâcher l'effort sur certaines piles en relevant légèrement ces piles à l'aide des équipages mobiles, ce qui a pour effet de transférer la charge sur les autres piles.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.

Il est nécessaire dans ce cas de pouvoir mesurer la charge sur chacune des piles.In this case it is necessary to be able to measure the charge on each of the batteries.

De même, au cours de l'exploitation il est utile de maintenir la même charge sur les diverses piles le réglage de charge pouvant, là encore, être réalisé en baissant les équipages mobiles de la pile trop chargée. Mais il est pour cela nécessaire de pouvoir mesurer en permanence la charge sur les diverses piles.Likewise, during operation, it is useful to maintain the same charge on the various batteries, the charge adjustment being able, here again, to be achieved by lowering the moving parts of the excessively charged battery. But for this it is necessary to be able to continuously measure the charge on the various batteries.

Il est connu du document FR-A 2 312 603 qui décrit la plate- forme de ce type de disposer entre les surfaces supérieures des équipages mobiles et les palonniers associés des vérins dont les corps sont solidaires desdits palonniers.It is known from document FR-A 2 312 603 which describes the platform of this type of having between the upper surfaces of the movable assemblies and the associated spreaders cylinders whose bodies are integral with said spreaders.

Dans cette plate-forme, les palonniers se trouvent fragilisés dans une partie où ils doivent travailler, et de plus, l'effort sur ces vérins est très important sous l'effet des déformations élastiques des palonniers et des tolérances à la construction et des jeux entre les piles et leurs guides.In this platform, the spreaders are weakened in a part where they have to work, and moreover, the force on these jacks is very high under the effect of the elastic deformations of the spreaders and the construction tolerances and of the clearances between the piles and their guides.

Le dispositif de mesure de charge sur les piles d'une plate- forme auto-élévatrice selon l'invention ne présentant pas ces inconvénients est caractérisé en ce qu'il comporte, entre chaque structure d'appui supérieure et le palonnier associé, un coussin hydraulique logé dans des moyens de logement guidés par des moyens de guidage, les moyens de logement et les moyens de guidage étant solidaires les uns du palonnier, les autres de ladite stucture d'appui supérieure et étant disposés de façon à permettre à la pile de prendre une position légèrement inclinée par rapport à la plate-forme, et en ce que les coussins hydrauliques associés à toutes les structures d'appui supérieures des équipages mobiles d'une pile sont reliés, d'une part, entre eux et, d'autre part, à des moyens sensibles à la pression du fluide à l'intérieur des coussins et affichant une grandeur représentative de la charge de la pile considérée.The device for measuring the load on the piles of a jack-up platform according to the invention 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.

Les coussins hydrauliques d'une même pile, leurs moyens de logement associés aux moyens de guidage, s'adaptent très facilement entre le mécanisme de levage et les palonniers sans nécessiter un grand aménagement des palonniers. De plus, ils donnent à cette jointure une fonction de rotule qui permet à la pile de prendre une légère inclinaison par rapport à la plate-forme.The hydraulic cushions of the same stack, their accommodation means associated with the guide means, adapt very easily between the lifting mechanism and the spreaders without requiring a large arrangement of spreaders. In addition, they give this joint a ball joint function which allows the stack to take a slight inclination relative to the platform.

Les moyens sensibles à la pression peuvent être un manomètre gradué en unités de charge.The pressure-sensitive means may be a pressure gauge graduated in units of load.

Lorsque la quantité de fluide à l'intérieur du coussin est constante, la surface de contact coussin palonnier est pratiquement indépendante des variations de charge. Il s'ensuit que la charge varie quasi linéairement avec la pression, le manomètre peut alors être un manomètre classique avec des graduations linéaires.When the amount of fluid inside the cushion is constant, the spreader cushion contact surface is practically independent of load variations. It follows that the load varies almost linearly with the pressure, the pressure gauge can then be a conventional pressure gauge with linear graduations.

Par contre, lorsque les coussins sont reliés à un accumulateur hydropneumatique, la charge ne varie plus linéairement avec la pression, mais cette courbe de variation est déterminable expérimentalement, car il faut soit convertir les résultats de pression en unités de charge, soit graduer le manomètre non linéairement en unités de charge, soit faire varier la grandeur détectée selon la courbe pres- sion/charge pour continuer à pouvoir lire la charge sur un cadran gradué linéairement.On the other hand, when the cushions are connected to a hydropneumatic accumulator, the load no longer varies linearly with the pressure, but this variation curve can be determined experimentally, because it is either necessary to convert the results of pressure into units of load, either to calibrate the manometer non-linearly in units of load, or to vary the quantity detected according to the pressure / load curve to continue to be able to read the load on a dial graduated linearly.

La présente invention sera mieux comprise à l'aide de la description qui va suivre, dans laquelle :

  • La figure 1 représente schématiquement une plate-forme du type barge avec ses piles permettant l'application d'un dispositif selon l'invention.
  • La figure 2 représente une pile de la plate-forme selon la figure 1 avec ses équipages mobiles.
  • La figure 3 représente une vue de côté d'un équipage mobile de la figure 2 avec un dispositif selon l'invention.
  • La figure 4 représente une échelle agrandie une coupe verticale des organes entourant un coussin hydraulique appartenant à l'appartenant à l'équipage mobile de la figure 3.
  • La figure 5 représente une coupe horizontale des mêmes organes qui sont représentés sur la figure 4.
  • La figure 6 représente le schéma hydraulique du dispositif de contrôle selon l'invention.
The present invention will be better understood with the aid of the description which follows, in which:
  • FIG. 1 schematically represents a platform of the barge type with its batteries allowing the application of a device according to the invention.
  • Figure 2 shows a stack of the platform according to Figure 1 with its mobile equipment.
  • FIG. 3 represents a side view of a mobile assembly of FIG. 2 with a device according to the invention.
  • FIG. 4 represents an enlarged scale a vertical section of the members surrounding a hydraulic cushion belonging to the member belonging to the mobile assembly of FIG. 3.
  • FIG. 5 represents a horizontal section of the same members which are represented in FIG. 4.
  • FIG. 6 represents the hydraulic diagram of the control device according to the invention.

Sur la figure 1, on a représenté schématiquement, en vue de dessus, une plate-forme du type barge.In Figure 1, there is shown schematically, in top view, a platform of the barge type.

La plate-forme 1 comporte quatre piles cylindriques 2 mobiles verticalement par rapport à la plate-forme.The platform 1 comprises four cylindrical stacks 2 movable vertically with respect to the platform.

De part et d'autre de chaque pile 2 est disposé un palonnier 3.On each side of each stack 2 is placed a lifter 3.

Sur la figure 2, on a représenté une pile avec ses deux équipages mobiles.In Figure 2, there is shown a stack with its two mobile equipment.

La pile 2 comporte deux crémaillères doubles 4 en T, solidaires de ladite pile, chaque crémaillère 4 étant associée avec un équipage mobile 5.The stack 2 comprises two double racks 4 in T, integral with said stack, each rack 4 being associated with a movable assembly 5.

L'équipage mobile 5 est représenté vue de côté sur la figure 3.The moving element 5 is shown side view in FIG. 3.

Cet équipage mobile 5 comporte des pignons moteurs 6 coopérant avec chaque élément 7 de la crémaillère double 4.This moving element 5 comprises driving pinions 6 cooperating with each element 7 of the double rack 4.

Au sommet de l'équipage mobile 5 sont disposés deux coussins élastiques 8 en lamellé acier-caoutchouc terminés chacun par une structure supérieure d'appui 9.At the top of the mobile assembly 5 are arranged two elastic cushions 8 made of steel-rubber laminate each terminated by a upper support structure 9.

L'équipage mobile 5 est muni à sa partie inférieure de 2 surfaces d'appui inférieures 10 qui peuvent s'appuyer sur des patins 10' solidaires de la plate-forme 1.The moving part 5 is provided at its lower part with 2 lower bearing surfaces 10 which can be supported on pads 10 ′ secured to the platform 1.

Le palonnier 3 associé à chaque équipage mobile 5 a une forme de portique dont la base est solidaire de la plate-forme 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.

Entre chaque structure supérieure d'appui 9 et le palonnier 3 est disposé un coussin hydraulique. Il y en donc quatre coussins par pile.Between each upper support structure 9 and the lifter 3 is disposed a hydraulic cushion. So there are four cushions per stack.

L'environnement de ce coussin est représenté plus en détail à la figure 4 qui représente une coupe verticale IV-IV de la figure 5 et à la figure 5 qui représente une coupe horizontale V-V de la figure 4.The environment of this cushion is shown in more detail in FIG. 4 which represents a vertical section IV-IV in FIG. 5 and in FIG. 5 which represents a horizontal section V-V in FIG. 4.

Le coussin 11 est disposé dans un boîtier de protection 12 solidaire de la structure supérieure d'appui 9. Des butées guides 13 solidaires du palonnier 3 encadrent avec un certain jeu les côtés du boîtier 12.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.

Le boîtier 12 comporte sur son fond une ouverture par laquelle passe une connexion hydraulique flexible 14 avec le coussin. Les coussins hydrauliques ne seront pas décrits eux-mêmes plus en détail, ils seront du type décrit notamment dans le document FR-A 2 305 381.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 document FR-A 2 305 381.

Sur la figure 6 on a représenté les connexions hydrauliques du dispositif selon l'invention concernant une seule pile.In Figure 6 there is shown the hydraulic connections of the device according to the invention relating to a single battery.

Les coussins 11 sont reliés deux à deux par une canalisation 15 pourvue de deux vannes 16, chacune associée à un coussin.The cushions 11 are connected two by two by a pipe 15 provided with two valves 16, each associated with a cushion.

Les deux canalisations 15 reliant les coussins deux à deux sont réunies entre elles par une canalisation 17 munie de deux vannes 18, chacune associée à une paire de coussins 11 .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.

La canalisation 17 est reliée par l'intermédiaire d'une vanne 19 à un manomètre 20, par l'intermédiaire d'une vanne 21 à une source de liquide sous pression (non représentée) et par l'intermédiaire d'une vanne 22 à un accumulateur hydropneumatique 23.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.

Le fonctionnement du dispositif selon l'invention est le suivant.The operation of the device according to the invention is as follows.

Lorsque la plate-forme a été amenée en flottant jusqu'à sa position de travail, on gonfle, si cela n'a pas été fait précédemment, les coussins 11 à une pression relativement faible (par exemple 10 bars, avec des coussins carrés de 1 m x 1 m).When the platform has been brought floating to its working position, it is inflated, if this has not been done previously, the cushions 11 at a relatively low pressure (for example 10 bars, with square cushions of 1 mx 1 m).

On descend les piles en relâchant les pignons 6. Lorsque les pieds des piles ont touché le fond, on entraîne les pignons 6 en rotation, de façon à remonter les équipages mobiles 5. Dans un premier temps, du fait de l'élasticité des pièces 8 et 11 les structures d'appui décollent des patins 10', ce qui a pour effet d'élever la plate-forme 1 par rapport aux piles.The piles are lowered by releasing the pinions 6. When the feet of the piles have touched the bottom, the pinions 6 are rotated, so as to raise the movable assemblies 5. Firstly, due to the elasticity of the parts 8 and 11 the support structures take off pads 10 ′, which has the effect of raising the platform 1 relative to the stacks.

Lorsque la plate-forme a atteint une hauteur suffisante, on bloque les pignons en position.When the platform has reached a sufficient height, the pinions are locked in position.

On procède alors à la précharge de chaque pile en chargeant la pile considérée, par exemple, au double de sa charge normale en abaissant les équipages mobiles des autres piles. Le manomètre 20 peut être gradué en tonnes et permet de lire directement la charge.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.

Lorsque cette opération est terminée, on règle en position les équipages mobiles, de façon que la charge soit la même sur chaque pile.When this operation is complete, the mobile equipment is adjusted in position, so that the load is the same on each stack.

Ce réglage est repris aussi souvent que les variations de charge sont détectées sur les manomètres.This setting is repeated as often as load variations are detected on the pressure gauges.

Lorsque le dispositif comporte un accumulateur hydropneumatique 23, ce qui permet d'amortir les chocs sur chaque pile (la vanne 22 étant ouverte), on peut détecter avec le manomètre 20 une variation de pression qui peut être convertie en une variation de charge en ayant la courbe de variation pression charge qui dépend de l'accumulateur hydropneumatique et qui est établie expérimentalement. Bien évidemment, le cadran du manomètre peut être gradué directement en tonnes et on peut, si on désire que cette graduation soit linéaire, faire varier le signal détecté en fonction de la courbe pression charge ; on peut également transmettre et afficher la grandeur mesurée. On peut se servir de la vanne 19 en l'ouvrant plus ou moins pour arrêter les vibrations qui se répercutent sur le manomètre 20.When 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. Obviously, the dial of the manometer 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.

Lorsqu'on désire faire varier les caractéristiques de l'accumulateur 23 on ferme les vannes 18 et. 19 et on ouvre les vannes 21 et 22 afin de pouvoir mettre la quantité de fluide désirée dans l'accumulateur.When it is desired to vary the characteristics of the accumulator 23, the valves 18 and. 19 and the valves 21 and 22 are opened in order to be able to put the desired quantity of fluid in the accumulator.

Lors de la mesure les vannes 16 et 18 sont toujours ouvertes mais au cas où un coussin viendrait à fuire, on ferme la vanne 16 correspondante, le manomètre 20 indiquant alors, la pression moyenne des 3 coussins restant.When measuring valves 16 and 18 are always 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.

Claims (1)

Dispositif de contrôle de charge sur les piles (2) d'une plate-forme (1) auto-élévatrice, ladite plate-forme (1) comprenant plusieurs équipages mobiles (5) ayant des pignons moteurs (6) s'engrenant sur des crémaillères (4) solidaires des piles (2), lesdits équipages mobiles (5) présentant chacun au moins une structure d'appui supérieure (9), les structures d'appui supérieures (9) s'appuyant sur des palonniers (3) solidaires de la plate-forme (1) lorsque les piles (2) reposent sur le fond et que ladite plate-forme (1) est élevée au-dessus de l'eau, caractérisé en ce qu'il comporte, entre chaque structure d'appui supérieure (9) et le palonnier (3) associé, un coussin hydraulique (11) logé dans des moyens de logement (12) guidés par des moyens de guidage (13), les moyens de logement (12) et les moyens de guidage (13) étant solidaires les uns du palonnier (3) les autres de ladite structure d'appui supérieure (9) et étant disposés de façon à permettre à la pile (2) de prendre une position légèrement inclinée par rapport à la plate- forme (1), et en ce que les coussins hydrauliques (11) associés à toutes les structures d'appui supérieures (9) des équipages mobiles (5) d'une pile (2) sont reliés, d'une part, entre eux et, d'autre part, à des moyens (20) sensibles à la pression du fluide à l'intérieur des coussins (11) et affichant une grandeur représentative de la charge de la pile (2) considérée.Charge control device on the batteries (2) of a self-elevating platform (1), said platform (1) comprising several mobile assemblies (5) having driving pinions (6) meshing on racks (4) integral with the stacks (2), said mobile assemblies (5) each having at least one upper support structure (9), the upper support structures (9) resting on lifting beams (3) integral of the platform (1) when the piles (2) rest on the bottom and that said platform (1) is raised above the water, characterized in that it comprises, between each structure upper support (9) and the associated lifter (3), a hydraulic cushion (11) housed in housing means (12) guided by guide means (13), the housing means (12) and the guide means (13) being integral with one of the lifter (3) the other with said upper support structure (9) and being arranged so as to allow the stack (2) to assume a position l slightly inclined with respect to the platform (1), and in that the hydraulic cushions (11) associated with all of the upper support structures (9) of the mobile assemblies (5) of a stack (2) are connected , on the one hand, between them and, on the other hand, to means (20) sensitive to the pressure of the fluid inside the cushions (11) and displaying a quantity representative of the charge of the battery (2) considered.
EP82103304A 1981-04-23 1982-04-20 Device controlling the load on the legs of a self-elevating platform Expired EP0064214B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8108095 1981-04-23
FR8108095A FR2504676A1 (en) 1981-04-23 1981-04-23 CHARGE CONTROL DEVICE ON THE BATTERIES OF A SELF-LIFTING PLATFORM

Publications (2)

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

Family

ID=9257700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82103304A Expired EP0064214B1 (en) 1981-04-23 1982-04-20 Device controlling the load on the legs of a self-elevating platform

Country Status (4)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR1006016B (en) * 2007-07-13 2008-07-31 Αναστασιος Μαϊλης System for lifting and translocating vessels and related floating bodies.
EP4047965A1 (en) 2017-12-29 2022-08-24 Telefonaktiebolaget LM Ericsson (publ) Method using dual connectivity for redundant user plane paths and related wireless terminal and computer program

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101846561B (en) * 2010-06-18 2011-07-20 长沙理工大学 Mollisol area friction pile load transference curve tester

Citations (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 (en) * 1930-02-08 1931-01-15 Pieux Simplex Super Chabot Et Stilts
FR2150469A1 (en) * 1971-08-23 1973-04-06 Bolt Associates Inc
FR2305381A1 (en) * 1975-03-26 1976-10-22 Kleber Colombes Inflatable wedging or lifting cushion - has layer of reinforcing ropes for corners running round periphery
FR2312603A1 (en) * 1975-05-27 1976-12-24 Levingston Shipbuilding Co LOAD COMPENSATOR AND SHOCK ABSORBER FOR SEA DRILLING
FR2411270A1 (en) * 1977-12-09 1979-07-06 Stevin Baggeren Bv PLATFORM DESIGNED TO REST ON A SEA BOTTOM AND EQUIPPED WITH SHOCK ABSORBERS

Patent Citations (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 (en) * 1930-02-08 1931-01-15 Pieux Simplex Super Chabot Et Stilts
FR2150469A1 (en) * 1971-08-23 1973-04-06 Bolt Associates Inc
FR2305381A1 (en) * 1975-03-26 1976-10-22 Kleber Colombes Inflatable wedging or lifting cushion - has layer of reinforcing ropes for corners running round periphery
FR2312603A1 (en) * 1975-05-27 1976-12-24 Levingston Shipbuilding Co LOAD COMPENSATOR AND SHOCK ABSORBER FOR SEA DRILLING
FR2411270A1 (en) * 1977-12-09 1979-07-06 Stevin Baggeren Bv PLATFORM DESIGNED TO REST ON A SEA BOTTOM AND EQUIPPED WITH SHOCK ABSORBERS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR1006016B (en) * 2007-07-13 2008-07-31 Αναστασιος Μαϊλης System for lifting and translocating vessels and related floating bodies.
EP4047965A1 (en) 2017-12-29 2022-08-24 Telefonaktiebolaget LM Ericsson (publ) Method using dual connectivity for redundant user plane paths and related wireless terminal and computer program

Also Published As

Publication number Publication date
FR2504676A1 (en) 1982-10-29
JPS58101919A (en) 1983-06-17
NO821304L (en) 1982-10-25
NO156145B (en) 1987-04-21
EP0064214B1 (en) 1984-09-26
NO156145C (en) 1987-07-29
JPS6018767B2 (en) 1985-05-13
FR2504676B1 (en) 1984-01-27

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