WO2010139770A1 - Tool and method for installing blocks of a concrete shield - Google Patents

Tool and method for installing blocks of a concrete shield Download PDF

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Publication number
WO2010139770A1
WO2010139770A1 PCT/EP2010/057797 EP2010057797W WO2010139770A1 WO 2010139770 A1 WO2010139770 A1 WO 2010139770A1 EP 2010057797 W EP2010057797 W EP 2010057797W WO 2010139770 A1 WO2010139770 A1 WO 2010139770A1
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WO
WIPO (PCT)
Prior art keywords
block
tool
reservation
anchoring member
crane
Prior art date
Application number
PCT/EP2010/057797
Other languages
French (fr)
Inventor
Christian Henault
Christopher Fesq
Flavien Legrand
Jean-Noël Derycke
Yves Rialland
Christophe Portenseigne
Original Assignee
Bouygues Travaux Publics
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 Bouygues Travaux Publics filed Critical Bouygues Travaux Publics
Publication of WO2010139770A1 publication Critical patent/WO2010139770A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • E02B3/121—Devices for applying linings on banks or the water bottom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions

Definitions

  • the present invention relates to a gripping tool and a method of placing on an embankment concrete shell blocks, known in particular under the trademark Accropode.
  • the Accropode type shell blocks are large concrete structures (typically up to 22 m 3 ) used for the manufacture of dikes.
  • slings are wrapped around the block so as to tilt the block before removal.
  • the crane operator then manipulates the block to embed it on two blocks of the lower row.
  • Figure 1 illustrates the six slinging positions a to f recommended.
  • Position a allows an inclination of 22.5 ° around the X axis.
  • Position b allows an inclination of 22.5 ° around the X axis and 22.5 ° around the Y axis.
  • the position c is symmetrical with the position b with respect to the axis Z.
  • the position d corresponds to a rotation of 45 ° around the X axis.
  • the position e allows a rotation of 45 ° around the X axis and 22.5 ° around the Y axis.
  • the position f is symmetrical with the position e with respect to the axis Z.
  • this tool must be safe and robust.
  • a tool for setting up a concrete shell block on an embankment comprising:
  • a gripping device of the block comprising an anchoring member adapted to be inserted into a reservation provided for this purpose in the block and to occupy a position in which it is blocked in the block; a device for orienting the block according to at least two axes, said device being hooked on at least one cable of a crane and supporting said gripping device, said orientation device comprising
  • a support of the gripping device also supporting a jack, a rocker movable in rotation about an axis integral with said support, said rocker being moreover articulated by means of a ball joint connection to the cable of the crane and by means of a ball joint connection to the cylinder rod.
  • the orientation device comprises a rotational drive member of the block about a vertical axis, and said orientation device is further arranged to move the hooked point of the device to the cable on a semicircular trajectory.
  • the anchoring member may comprise a retractable rod and a movable member pivotable about the axis of the rod, said movable member having a length greater than the width of the reservation.
  • Another object of the invention relates to a method of placing a concrete shell block on an embankment, characterized in that it comprises the following steps:
  • the installation tool is attached to two hooks of the crane for handling the vacuum tool.
  • FIG. 1 illustrates the different slinging positions recommended in the system of the prior art
  • FIG. 2A and 2B respectively illustrate the anchoring member in the retracted position and in the deployed position
  • FIG. 3 is an overview of the principle of the tool according to the invention.
  • Figures 4A and 4B illustrate two positions taken by the block orientation device;
  • FIGS. 5A to 5F illustrate different positions of the block that makes it possible to obtain the tool according to the invention.
  • the tool for placing the shell block 1 comprises a gripping device and a device for orienting the block.
  • the crane operator also has in his cabin a system such as the system
  • Posibloc TM developed by Sogreah, which allows a three-dimensional display in real time of the positions and orientations of the blocks already laid on the slope.
  • the orientation of the block to be laid is determined according to the orientation of the blocks already in place on the slope.
  • the gripping device of the block comprises an anchoring member 2 intended to be inserted into a reservation 10 provided for this purpose in the shell block 1.
  • the anchoring member 2 is adapted to adopt a retracted position, in which it can slide inside the reservation, and an extended position, in which a movable member is actuated to allow locking of the anchor member in the block.
  • the gripping device comprises for this purpose means for actuating the anchoring member, for example hydraulic, not shown here. They make it possible to control the locking and unlocking of the anchoring member remotely, without human intervention at the anchoring member.
  • the anchoring member 2 comprises a rod articulated at its distal end to a movable element able to pivot about the axis of the rod and having a length greater than a dimension, for example the width, of the reservation 10.
  • the movable member 21 is aligned with the rod 20 which allows the sliding of the anchoring member in the reservation.
  • the movable member 21 rotates a quarter of a turn and its length is placed perpendicular to the width of the reservation, thereby retaining the body anchoring in the block.
  • the rod 20 is retractable inside the tool, so that the size of the anchoring member is limited. This allows the removal of the anchoring member once the block set up, regardless of its environment. Indeed, the proximity of the slope or other blocks may not provide sufficient back to the tool to allow the removal of an anchor of great length.
  • the reservation can be through, as shown in Figures 2A and 2B, that is to say, lead to two opposite faces of the block, or be inside the block, with an end opening on one side of the block for the insertion of organ anchoring and the other end opening into a wider volume (for example of spherical shape) formed in the block, in which case the anchoring member may comprise a device able to expand within this volume to lock the anchor member.
  • the reservation has dimensions sufficient to provide a game with the rod 20 to limit any risk of jamming thereof.
  • a guide system (not shown) is used arranged between the face of the block and the tool, in order to guide the insertion of the rod and to limit the stresses in torsion thereof.
  • the tool comprises several anchoring members of different dimensions, each adapted to a particular range of blocks, and interchangeable.
  • the anchoring member is connected to the tool by a fixing means for easy disconnection in case of blocking of the anchoring member or failure of a component thereof. In such a case, it is sufficient to separate the anchor member of the tool and only the anchor member is lost.
  • the orientation device 3 makes it possible to orient the block according to at least two axes.
  • the orientation device that is described here allows orientation around two axes.
  • the first axis is the vertical axis of the crane cable (noted Z).
  • the second axis makes it possible to modify the inclination of the block.
  • the orientation device comprises a member for actuating in rotation about the Z axis. It is for example a geared motor 30 placed on the Z axis. The amplitude of rotation about the Z axis is 180 °.
  • the device further comprises a motorized balance which allows the orientation along the second axis, with an amplitude of a few degrees.
  • the rocker 31 is fixed to the cable below the gearmotor 30 by means of a ball joint 35.
  • the balance 36 is also mounted on a support 33 about an axis of rotation 34. Said support 33 is fixed in its upper part to a second cable of the crane (not shown).
  • the support 33 supports a cylinder 32 movable in rotation about an axis 37 and, in its lower part, it supports the gripping device described above.
  • the rod of the jack 32 is connected to the rocker 31 by a ball 36.
  • the jack 32 To limit the size of the jack 32, it is positioned so that it exerts a substantially colinear force to the weight of the block 1.
  • FIGS. 5A to 5F highlight the amplitude of movement allowed by the balance and the diversity of possible orientations of the blocks that results.
  • the orientation device is arranged to provide a third axis of orientation of the block and therefore more possible inclinations.
  • a first step includes hooking the tool alone to the two crane hooks, then lifting it and approaching the block to move.
  • the use of two hooks makes it possible to balance the tool during empty handling.
  • one removes the tension in one of the two cables so that the forces are transmitted to the tool by a single cable.
  • the shell block is preferably stored in an inclined position, so that the reservation is oriented substantially vertically.
  • the crane operator controls the tool to orient the anchor member according to the inclination of the reservation.
  • the anchoring member is then inserted, in its retracted configuration, into the reservation provided for this purpose in the shell block, and then deployed.
  • the insertion of the anchoring member is performed without human intervention, which increases the safety of the operation.
  • the crane operator controls the locking of the anchoring member and the lifting of the block, then controls the tool to orient the block in the desired position.

Abstract

The present invention relates to a tool for installing a block of a concrete shield (1) on an embankment, characterised in that said tool includes: a device for gripping the block (1), including an anchoring member (2) suitable for being inserted in a recess (10) made for said purpose in the block (1) and for occupying a position in which said member is locked inside the block (1); a device (3) for positioning the block (1) according to at least two axes, said positioning device being hooked to at least one rope (4) of a crane and supporting said gripping device.

Description

OUTIL ET PROCEDE DE MISE EN PLACE DE BLOCS DE CARAPACE EN BETON TOOL AND METHOD FOR PLACING CONCRETE CARAPLE BLOCKS
DOMAINE DE L'INVENTION La présente invention concerne un outil de préhension et un procédé de mise en place sur un talus de blocs de carapace en béton, connus notamment sous la marque Accropode.FIELD OF THE INVENTION The present invention relates to a gripping tool and a method of placing on an embankment concrete shell blocks, known in particular under the trademark Accropode.
ARRIERE PLAN DE L'INVENTION Les blocs de carapace du type Accropode sont des structures en béton de grandes dimensions (pouvant atteindre typiquement jusqu'à 22 m3) utilisées pour la fabrication de digues.BACKGROUND OF THE INVENTION The Accropode type shell blocks are large concrete structures (typically up to 22 m 3 ) used for the manufacture of dikes.
A cet effet, ils sont mis en place par rangées successives le long d'un talus au moyen d'élingues et d'une grue. Les blocs doivent être disposés de manière à respecter une densité prédéterminée et de telle sorte que deux blocs voisins présentent des attitudes distinctes.For this purpose, they are placed in successive rows along an embankment by means of slings and a crane. The blocks must be arranged to respect a predetermined density and so that two neighboring blocks have distinct attitudes.
Pour la mise en place, des élingues sont enroulées autour du bloc de manière à incliner le bloc avant la dépose. Le grutier manipule alors le bloc pour l'encastrer sur deux blocs de la rangée inférieure.For installation, slings are wrapped around the block so as to tilt the block before removal. The crane operator then manipulates the block to embed it on two blocks of the lower row.
L'inclinaison préalable donnée au bloc par l'intermédiaire des élingues permet que le bloc, au moment où il est posé, pivote sous l'effet de son poids pour adopter la position souhaitée. Le fabricant des blocs Accropode, Sogreah, impose un cahier des charges pour la mise en place des blocs.The prior inclination given to the block by means of the slings allows the block, at the moment it is set, to pivot under the effect of its weight to adopt the desired position. The manufacturer of the Accropode blocks, Sogreah, imposes a set of specifications for the placement of the blocks.
Notamment, six positions d'élingage sont préconisées par Sogreah pour obtenir des positions variées des blocs.In particular, six slinging positions are recommended by Sogreah to obtain various positions of the blocks.
La figure 1 illustre les six positions d'élingage a à f préconisées. La position a permet une inclinaison de 22,5° autour de l'axe X. La position b permet une inclinaison de 22,5° autour de l'axe X et de 22,5° autour de l'axe Y.Figure 1 illustrates the six slinging positions a to f recommended. Position a allows an inclination of 22.5 ° around the X axis. Position b allows an inclination of 22.5 ° around the X axis and 22.5 ° around the Y axis.
La position c est symétrique de la position b par rapport à l'axe Z.The position c is symmetrical with the position b with respect to the axis Z.
La position d correspond à une rotation de 45° autour de l'axe X. La position e permet une rotation de 45° autour de l'axe X et de 22,5° autour de l'axe Y.The position d corresponds to a rotation of 45 ° around the X axis. The position e allows a rotation of 45 ° around the X axis and 22.5 ° around the Y axis.
La position f est symétrique de la position e par rapport à l'axe Z.The position f is symmetrical with the position e with respect to the axis Z.
Toutefois, l'élingage nécessite une intervention humaine, ce qui présente des inconvénients en termes de sécurité des opérateurs, en raison de la grande hauteur des blocs.However, slinging requires human intervention, which has disadvantages in terms of operator safety, because of the high height of the blocks.
On cherche donc à concevoir un outil de mise en place de blocs de carapace qui permette de s'affranchir d'une intervention humaine directe au moment de la préhension, en vue d'améliorer la sécurité du personnel du chantier.We are therefore looking to design a tool for the implementation of carapace blocks that allows to get rid of a direct human intervention at the time of gripping, in order to improve the safety of the site staff.
Par ailleurs, les positions d'élingage actuellement utilisées ne couvrant qu'un nombre limité d'inclinaisons, la pose peut s'avérer délicate et nécessiter des reprises de manutention.Moreover, currently used slinging positions covering only a limited number of inclinations, the installation can be difficult and require rework handling.
On cherche donc aussi à concevoir un outil qui permette de donner au bloc une inclinaison plus proche de sa position finale, en vue d'améliorer la qualité de la pose.We also seek to design a tool that allows to give the block an inclination closer to its final position, to improve the quality of the pose.
Compte tenu de la dimension et du poids des blocs de carapace, cet outil doit être sûr et robuste.Given the size and weight of the shell blocks, this tool must be safe and robust.
Il faut également tenir compte du fait que, une fois posés, les blocs de carapace ne sont accessibles que par un plongeur, en raison de leur immersion.It should also be borne in mind that, once laid, the carapace blocks are accessible only by a diver, due to their immersion.
Le retrait de l'outil doit donc être possible sans intervention humaine sous- marine sur les blocs.Removal of the tool must therefore be possible without underwater human intervention on the blocks.
BREVE DESCRIPTION DE L'INVENTIONBRIEF DESCRIPTION OF THE INVENTION
Conformément à l'invention, il est proposé un outil de mise en place d'un bloc de carapace en béton sur un talus, comprenant :According to the invention, there is provided a tool for setting up a concrete shell block on an embankment, comprising:
- un dispositif de préhension du bloc, comprenant un organe d'ancrage apte à être inséré dans une réservation prévue à cet effet dans le bloc et à occuper une position dans laquelle il est bloqué dans le bloc ; - un dispositif d'orientation du bloc selon au moins deux axes, ledit dispositif étant accroché à au moins un câble d'une grue et supportant ledit dispositif de préhension, ledit dispositif d'orientation comprenant- A gripping device of the block, comprising an anchoring member adapted to be inserted into a reservation provided for this purpose in the block and to occupy a position in which it is blocked in the block; a device for orienting the block according to at least two axes, said device being hooked on at least one cable of a crane and supporting said gripping device, said orientation device comprising
- un support du dispositif de préhension, supportant également un vérin, - un balancier, mobile en rotation autour d'un axe solidaire dudit support, ledit balancier étant par ailleurs articulé au moyen d'une liaison rotule au câble de la grue et au moyen d'une liaison rotule à la tige du vérin.a support of the gripping device, also supporting a jack, a rocker movable in rotation about an axis integral with said support, said rocker being moreover articulated by means of a ball joint connection to the cable of the crane and by means of a ball joint connection to the cylinder rod.
Le dispositif d'orientation comprend un organe d'entraînement en rotation du bloc autour d'un axe vertical, et ledit dispositif d'orientation est en outre agencé pour déplacer le point d'accroché du dispositif au câble sur une trajectoire semi-circulaire.The orientation device comprises a rotational drive member of the block about a vertical axis, and said orientation device is further arranged to move the hooked point of the device to the cable on a semicircular trajectory.
L'organe d'ancrage peut comprendre une tige rétractable et un élément mobile apte à pivoter autour de l'axe de la tige, ledit élément mobile présentant une longueur supérieure à la largeur de la réservation.The anchoring member may comprise a retractable rod and a movable member pivotable about the axis of the rod, said movable member having a length greater than the width of the reservation.
Un autre objet de l'invention concerne un procédé de mise en place d'un bloc de carapace en béton sur un talus, caractérisé en ce qu'il comprend les étapes suivantes :Another object of the invention relates to a method of placing a concrete shell block on an embankment, characterized in that it comprises the following steps:
- accrochage de l'outil de mise en place tel que décrit plus haut à une grue ;- hooking of the implementation tool as described above to a crane;
- insertion de l'organe d'ancrage dans une réservation prévue à cet effet dans le bloc ; - blocage de l'organe d'ancrage dans la réservation ;- insertion of the anchor member in a reservation provided for this purpose in the block; - locking of the anchor member in the reservation;
- soulèvement du bloc ;- lifting of the block;
- actionnement du dispositif d'orientation pour orienter le bloc dans une position déterminée ;- Actuation of the orientation device for orienting the block in a specific position;
- mise en place du bloc sur le talus. De manière avantageuse, on accroche l'outil de mise en place à deux crochets de la grue pour la manutention de l'outil à vide.- placement of the block on the embankment. Advantageously, the installation tool is attached to two hooks of the crane for handling the vacuum tool.
Après la mise en place du bloc sur le talus, on actionne le dispositif de préhension pour débloquer l'organe d'ancrage et récupérer l'outil. BREVE DESCRIPTION DES FIGURESAfter placing the block on the slope, it activates the gripping device to unlock the anchor member and recover the tool. BRIEF DESCRIPTION OF THE FIGURES
D'autres buts, caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui va suivre, en référence aux dessins annexés sur lesquels : - la figure 1 illustre les différentes positions d'élingage préconisées dans le système de l'art antérieur ;Other objects, features and advantages of the invention will appear on reading the detailed description which follows, with reference to the appended drawings in which: FIG. 1 illustrates the different slinging positions recommended in the system of the prior art;
- les figures 2A et 2B illustrent respectivement l'organe d'ancrage en position escamotée et en position déployée ;- Figures 2A and 2B respectively illustrate the anchoring member in the retracted position and in the deployed position;
- la figure 3 est une vue d'ensemble de principe de l'outil conforme à l'invention ; - les figures 4A et 4B illustrent deux positions prises par le dispositif d'orientation des blocs ;FIG. 3 is an overview of the principle of the tool according to the invention; - Figures 4A and 4B illustrate two positions taken by the block orientation device;
- les figures 5A à 5F illustrent différentes positions du bloc que permet d'obtenir l'outil conforme à l'invention.FIGS. 5A to 5F illustrate different positions of the block that makes it possible to obtain the tool according to the invention.
DESCRIPTION DETAILLEE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION
L'outil de mise en place du bloc de carapace 1 comprend un dispositif de préhension et un dispositif d'orientation du bloc.The tool for placing the shell block 1 comprises a gripping device and a device for orienting the block.
Il est accroché aux câbles de la grue de manutention, au moyen de deux crochets. Le grutier dispose par ailleurs dans sa cabine d'un système tel que le systèmeIt is attached to the cables of the handling crane by means of two hooks. The crane operator also has in his cabin a system such as the system
Posibloc™ développé par Sogreah, qui permet un affichage tridimensionnel en temps réel des positions et orientations des blocs déjà posés sur le talus.Posibloc ™ developed by Sogreah, which allows a three-dimensional display in real time of the positions and orientations of the blocks already laid on the slope.
L'orientation du bloc à poser est déterminée en fonction de l'orientation des blocs déjà en place sur le talus. Dispositif de préhension du blocThe orientation of the block to be laid is determined according to the orientation of the blocks already in place on the slope. Block gripping device
En référence aux figures 2A et 2B, le dispositif de préhension du bloc comprend un organe d'ancrage 2 destiné à être insérée dans une réservation 10 ménagée à cet effet dans le bloc de carapace 1.With reference to FIGS. 2A and 2B, the gripping device of the block comprises an anchoring member 2 intended to be inserted into a reservation 10 provided for this purpose in the shell block 1.
L'organe d'ancrage 2 est apte à adopter une position escamotée, dans laquelle il peut coulisser à l'intérieur de la réservation, et une position déployée, dans laquelle un élément mobile est actionné pour permettre le blocage de l'organe d'ancrage dans le bloc.The anchoring member 2 is adapted to adopt a retracted position, in which it can slide inside the reservation, and an extended position, in which a movable member is actuated to allow locking of the anchor member in the block.
Le dispositif de préhension comprend à cet effet des moyens d'actionnement de l'organe d'ancrage, par exemple hydrauliques, non illustrés ici. Ils permettent de commander le blocage et le déblocage de l'organe d'ancrage à distance, sans intervention humaine au niveau de l'organe d'ancrage.The gripping device comprises for this purpose means for actuating the anchoring member, for example hydraulic, not shown here. They make it possible to control the locking and unlocking of the anchoring member remotely, without human intervention at the anchoring member.
Par exemple, comme illustré aux figures 3A et 3B, l'organe d'ancrage 2 comporte une tige 20 articulée à son extrémité distale à un élément mobile 21 apte à pivoter autour de l'axe de la tige, et présentant une longueur supérieure à une dimension, par exemple la largeur, de la réservation 10.For example, as illustrated in FIGS. 3A and 3B, the anchoring member 2 comprises a rod articulated at its distal end to a movable element able to pivot about the axis of the rod and having a length greater than a dimension, for example the width, of the reservation 10.
Lorsque l'organe d'ancrage 2 est inséré dans la réservation 10, l'élément mobile 21 est aligné avec la tige 20 ce qui permet le coulissement de l'organe d'ancrage dans la réservation.When the anchoring member 2 is inserted in the reservation 10, the movable member 21 is aligned with the rod 20 which allows the sliding of the anchoring member in the reservation.
Lorsque l'extrémité de la tige 20 parvient à l'extrémité distale de la réservation 10, l'élément mobile 21 pivote d'un quart de tour et sa longueur se place perpendiculairement à la largeur de la réservation, retenant ainsi l'organe d'ancrage dans le bloc.When the end of the rod 20 reaches the distal end of the reservation 10, the movable member 21 rotates a quarter of a turn and its length is placed perpendicular to the width of the reservation, thereby retaining the body anchoring in the block.
De préférence, la tige 20 est rétractable à l'intérieur de l'outil, de sorte que l'encombrement de l'organe d'ancrage est limité. Ceci permet le retrait de l'organe d'ancrage une fois le bloc mis en place, quel que soit son environnement. En effet, la proximité du talus ou d'autres blocs pourraient ne pas procurer le recul suffisant à l'outil pour permettre le retrait d'un organe d'ancrage de grande longueur.Preferably, the rod 20 is retractable inside the tool, so that the size of the anchoring member is limited. This allows the removal of the anchoring member once the block set up, regardless of its environment. Indeed, the proximity of the slope or other blocks may not provide sufficient back to the tool to allow the removal of an anchor of great length.
Bien sûr, tout autre moyen pour déployer un élément mobile de manière à bloquer l'organe d'ancrage peut être utilisé sans pour autant sortir du cadre de la présente invention.Of course, any other means for deploying a movable member so as to block the anchoring member can be used without departing from the scope of the present invention.
De même, on pourra employer une réservation d'une forme autre que rectangulaire, du moment que l'on peut y insérer un organe d'ancrage et déployer un élément mobile de retenue.Similarly, we can use a reservation of a shape other than rectangular, as long as we can insert an anchor and deploy a movable retaining element.
La réservation peut être traversante, comme illustré aux figures 2A et 2B, c'est- à-dire déboucher sur deux faces opposées du bloc, ou bien être intérieure au bloc, avec une extrémité débouchant sur une face du bloc pour l'insertion de l'organe d'ancrage et l'autre extrémité débouchant dans un volume plus large (par exemple de forme sphérique) ménagé dans le bloc, auquel cas l'organe d'ancrage peut comprendre un dispositif apte à s'expanser à l'intérieur de ce volume pour bloquer l'organe d'ancrage. La réservation présente des dimensions suffisantes pour ménager un jeu avec la tige 20 afin de limiter tout risque de tout coincement de celle-ci.The reservation can be through, as shown in Figures 2A and 2B, that is to say, lead to two opposite faces of the block, or be inside the block, with an end opening on one side of the block for the insertion of organ anchoring and the other end opening into a wider volume (for example of spherical shape) formed in the block, in which case the anchoring member may comprise a device able to expand within this volume to lock the anchor member. The reservation has dimensions sufficient to provide a game with the rod 20 to limit any risk of jamming thereof.
De préférence, on utilise un système de guidage (non représenté) disposé entre la face du bloc et l'outil, en vue de guider l'insertion de la tige et de limiter les sollicitations en torsion de celle-ci. De manière particulièrement avantageuse, l'outil comprend plusieurs organes d'ancrage de différentes dimensions, adaptés chacun à une gamme de blocs particulière, et interchangeables.Preferably, a guide system (not shown) is used arranged between the face of the block and the tool, in order to guide the insertion of the rod and to limit the stresses in torsion thereof. Particularly advantageously, the tool comprises several anchoring members of different dimensions, each adapted to a particular range of blocks, and interchangeable.
Ceci évite de recourir à un organe d'ancrage unique dimensionné pour tous les types de blocs et permet d'utiliser l'organe d'ancrage le plus approprié en fonction de la taille du bloc à mettre en place.This avoids the need for a single anchoring device dimensioned for all types of blocks and makes it possible to use the most appropriate anchoring member as a function of the size of the block to be put in place.
L'organe d'ancrage est lié à l'outil par un moyen de fixation permettant un désaccouplement aisé en cas de blocage de l'organe d'ancrage ou de défaillance d'un composant de celui-ci. Dans un tel cas, il suffit donc de désolidariser l'organe d'ancrage de l'outil et seul l'organe d'ancrage est perdu. Dispositif d'orientation du blocThe anchoring member is connected to the tool by a fixing means for easy disconnection in case of blocking of the anchoring member or failure of a component thereof. In such a case, it is sufficient to separate the anchor member of the tool and only the anchor member is lost. Block orientation device
Le dispositif d'orientation 3 permet d'orienter le bloc selon au moins deux axes.The orientation device 3 makes it possible to orient the block according to at least two axes.
A titre d'illustration, le dispositif d'orientation qui est décrit ici permet une orientation autour de deux axes.As an illustration, the orientation device that is described here allows orientation around two axes.
Le premier axe est l'axe vertical du câble de la grue (noté Z). Le deuxième axe permet de modifier l'inclinaison du bloc.The first axis is the vertical axis of the crane cable (noted Z). The second axis makes it possible to modify the inclination of the block.
A cet effet, comme illustré à la figure 3, le dispositif d'orientation comprend un organe d'actionnement en rotation autour de l'axe Z. Il s'agit par exemple d'un motoréducteur 30 placé sur l'axe Z. L'amplitude de rotation autour de l'axe Z est de 180°. Le dispositif comprend par ailleurs un balancier motorisé qui permet l'orientation selon le deuxième axe, avec une amplitude de quelques degrés. Le balancier 31 est fixé au câble en-dessous du motoréducteur 30 au moyen d'une liaison rotule 35.For this purpose, as illustrated in FIG. 3, the orientation device comprises a member for actuating in rotation about the Z axis. It is for example a geared motor 30 placed on the Z axis. The amplitude of rotation about the Z axis is 180 °. The device further comprises a motorized balance which allows the orientation along the second axis, with an amplitude of a few degrees. The rocker 31 is fixed to the cable below the gearmotor 30 by means of a ball joint 35.
Le balancier 36 est par ailleurs monté sur un support 33 autour d'un axe de rotation 34. Ledit support 33 est fixé, dans sa partie supérieure, à un deuxième câble de la grue (non représenté).The balance 36 is also mounted on a support 33 about an axis of rotation 34. Said support 33 is fixed in its upper part to a second cable of the crane (not shown).
Dans sa partie supérieure, le support 33 supporte un vérin 32 mobile en rotation autour d'un axe 37 et, dans sa partie inférieure, il supporte le dispositif de préhension décrit plus haut. La tige du vérin 32 est liée au balancier 31 par une rotule 36.In its upper part, the support 33 supports a cylinder 32 movable in rotation about an axis 37 and, in its lower part, it supports the gripping device described above. The rod of the jack 32 is connected to the rocker 31 by a ball 36.
Ainsi, l'actionnement du vérin 32 conduit à déplacer le balancier 31 autour de son axe de rotation 34.Thus, the actuation of the jack 32 leads to move the balance 31 around its axis of rotation 34.
Il en résulte un déplacement du point 35 par lequel le câble 4 est accroché au balancier 31 sur une trajectoire en arc de cercle, qui conduit à modifier l'orientation du bloc 1 qui conserve son centre de gravité sur l'axe du câble.This results in a displacement of the point 35 by which the cable 4 is hooked to the balance 31 on an arcuate path, which leads to change the orientation of the block 1 which maintains its center of gravity on the axis of the cable.
Pour limiter la taille du vérin 32, on positionne celui-ci de telle sorte qu'il exerce un effort sensiblement colinéaire au poids du bloc 1.To limit the size of the jack 32, it is positioned so that it exerts a substantially colinear force to the weight of the block 1.
Les figures 5A à 5F mettent en évidence l'amplitude de mouvements autorisée par le balancier et la diversité des orientations possibles des blocs qui en résulte. De préférence, le dispositif d'orientation est agencé de manière à procurer un troisième axe d'orientation du bloc et par conséquent davantage d'inclinaisons possibles.FIGS. 5A to 5F highlight the amplitude of movement allowed by the balance and the diversity of possible orientations of the blocks that results. Preferably, the orientation device is arranged to provide a third axis of orientation of the block and therefore more possible inclinations.
Procédé de mise en place d'un blocMethod of setting up a block
La mise en place d'un bloc sur un talus avec l'outil conforme à l'invention comprend les étapes successives suivantes.The implementation of a block on an embankment with the tool according to the invention comprises the following successive steps.
Une première étape comprend l'accrochage de l'outil seul aux deux crochets de grue, puis son levage et l'approche du bloc à déplacer. L'utilisation de deux crochets permet d'équilibrer l'outil lors de la manutention à vide. Toutefois, pour la manipulation d'un bloc, on supprime la tension dans l'un des deux câbles de sorte que les efforts soient transmis à l'outil par un seul câble. Pour faciliter l'insertion de l'organe d'ancrage dans la réservation, le bloc de carapace est stocké de préférence dans une position inclinée, de sorte que la réservation soit orientée sensiblement verticalement.A first step includes hooking the tool alone to the two crane hooks, then lifting it and approaching the block to move. The use of two hooks makes it possible to balance the tool during empty handling. However, for the manipulation of a block, one removes the tension in one of the two cables so that the forces are transmitted to the tool by a single cable. To facilitate the insertion of the anchoring member into the reservation, the shell block is preferably stored in an inclined position, so that the reservation is oriented substantially vertically.
Le grutier commande l'outil pour orienter l'organe d'ancrage selon l'inclinaison de la réservation.The crane operator controls the tool to orient the anchor member according to the inclination of the reservation.
L'organe d'ancrage est alors inséré, dans sa configuration escamotée, dans la réservation prévue à cet effet dans le bloc de carapace, puis déployé.The anchoring member is then inserted, in its retracted configuration, into the reservation provided for this purpose in the shell block, and then deployed.
L'insertion de l'organe d'ancrage est effectuée sans intervention humaine, ce qui augmente la sécurité de l'opération. Le grutier commande le blocage de l'organe d'ancrage et le levage du bloc, puis commande l'outil pour orienter le bloc dans la position souhaitée.The insertion of the anchoring member is performed without human intervention, which increases the safety of the operation. The crane operator controls the locking of the anchoring member and the lifting of the block, then controls the tool to orient the block in the desired position.
Il pose ensuite le bloc sur le talus.He then places the block on the slope.
Ensuite, le grutier commande le déblocage de l'organe d'ancrage et son retrait de la réservation. Enfin, il remonte les crochets de grue et l'outil. Then, the crane operator controls the unlocking of the anchor member and its removal from the reservation. Finally, he goes back the crane hooks and the tool.

Claims

REVENDICATIONS
1. Outil de mise en place d'un bloc de carapace (1 ) en béton sur un talus, comprenant :A tool for placing a concrete shell block (1) on an embankment, comprising:
- un dispositif de préhension du bloc (1 ), comprenant un organe d'ancrage (2) apte à être inséré dans une réservation (10) prévue à cet effet dans le bloc (1 ) et à occuper une position dans laquelle il est bloqué dans le bloc (1 ) ;a device for gripping the block (1), comprising an anchoring member (2) adapted to be inserted into a reservation (10) provided for this purpose in the block (1) and to occupy a position in which it is blocked; in the block (1);
- un dispositif d'orientation (3) du bloc (1 ) selon au moins deux axes, ledit dispositif d'orientation étant accroché à au moins un câble (4) d'une grue et supportant ledit dispositif de préhension, caractérisé en ce que le dispositif d'orientation (3) comprend :- An orientation device (3) of the block (1) according to at least two axes, said orientation device being attached to at least one cable (4) of a crane and supporting said gripping device, characterized in that the orientation device (3) comprises:
- un support (33) du dispositif de préhension, supportant également un vérin (32),a support (33) of the gripping device, also supporting a jack (32),
- un balancier (31 ), mobile en rotation autour d'un axe (34) solidaire dudit support (33), ledit balancier étant par ailleurs articulé au moyen d'une liaison rotule (35) au câble (4) de la grue et au moyen d'une liaison rotule (36) à la tige du vérin (32).- A rocker (31), movable in rotation about an axis (34) integral with said support (33), said rocker being further articulated by means of a ball joint (35) to the cable (4) of the crane and by means of a ball joint (36) to the cylinder rod (32).
2. Outil selon la revendication 1 , caractérisé en ce que le dispositif d'orientation (3) comprend un organe (30) d'entraînement en rotation du bloc (1 ) autour d'un axe vertical (Z), et en ce que ledit dispositif d'orientation (3) est en outre agencé pour déplacer le point d'accroché (35) du dispositif au câble (4) sur une trajectoire semi-circulaire.2. Tool according to claim 1, characterized in that the orientation device (3) comprises a member (30) for rotating the block (1) about a vertical axis (Z), and in that said orientation device (3) is further arranged to move the hooked point (35) of the device to the cable (4) on a semi-circular path.
3. Outil selon l'une des revendications 1 ou 2, caractérisé en ce que l'organe d'ancrage (2) comprend une tige (20) rétractable et un élément mobile (21 ) apte à pivoter autour de l'axe de la tige (20), ledit élément mobile présentant une longueur supérieure à une dimension de la réservation (10).3. Tool according to one of claims 1 or 2, characterized in that the anchoring member (2) comprises a rod (20) retractable and a movable member (21) pivotable about the axis of the rod (20), said movable member having a length greater than one dimension of the reservation (10).
4. Procédé de mise en place d'un bloc de carapace (1 ) en béton sur un talus, caractérisé en ce qu'il comprend les étapes suivantes : - accrochage de l'outil de mise en place conforme à l'une des revendications 1 à 3 à une grue ;4. Method of placing a shell block (1) in concrete on an embankment, characterized in that it comprises the following steps: - hooking the placing tool according to one of claims 1 to 3 to a crane;
- insertion de l'organe d'ancrage (2) dans une réservation (10) prévue à cet effet dans le bloc (1 ) ; - blocage de l'organe d'ancrage (2) dans la réservation ;- insertion of the anchoring member (2) in a reservation (10) provided for this purpose in the block (1); - blocking the anchoring member (2) in the reservation;
- soulèvement du bloc (1 ) ;- lifting of the block (1);
- actionnement du dispositif d'orientation pour orienter le bloc (1 ) dans une position déterminée ;- Actuating the orientation device to orient the block (1) in a determined position;
- mise en place du bloc (1 ) sur le talus.- Implementation of the block (1) on the slope.
5. Procédé selon la revendication 4, caractérisé en ce que l'on accroche l'outil de mise en place à deux crochets de la grue pour la manutention de l'outil à vide.5. Method according to claim 4, characterized in that one attaches the setting tool to two hooks of the crane for handling the vacuum tool.
6. Procédé selon l'une des revendications 4 ou 5, caractérisé en ce qu'après la mise en place du bloc (1 ) sur le talus, on actionne le dispositif de préhension pour débloquer l'organe d'ancrage (2) et récupérer l'outil. 6. Method according to one of claims 4 or 5, characterized in that after the establishment of the block (1) on the slope, the gripping device is actuated to unlock the anchoring member (2) and retrieve the tool.
PCT/EP2010/057797 2009-06-04 2010-06-03 Tool and method for installing blocks of a concrete shield WO2010139770A1 (en)

Applications Claiming Priority (2)

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FR0953677 2009-06-04
FR0953677A FR2946367B1 (en) 2009-06-04 2009-06-04 TOOL AND METHOD FOR PLACING CONCRETE CARAPLE BLOCKS

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106272936A (en) * 2016-09-27 2017-01-04 中交第航务工程局有限公司 A kind of Zhi Chai mechanism for torsion-bending ratio template
WO2017061583A1 (en) * 2015-10-07 2017-04-13 大裕株式会社 Irregularly-shaped-block inverting device and irregularly-shaped-block placement method

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CN114541329B (en) * 2022-03-28 2023-01-24 浙江大学 Self-filling type repairing device and repairing method based on damaged and twisted king character block protective surface

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Publication number Priority date Publication date Assignee Title
JPH01150691A (en) * 1987-12-04 1989-06-13 Sankyo Trading:Kk Method of laying slope-face block

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
JPH01150691A (en) * 1987-12-04 1989-06-13 Sankyo Trading:Kk Method of laying slope-face block

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017061583A1 (en) * 2015-10-07 2017-04-13 大裕株式会社 Irregularly-shaped-block inverting device and irregularly-shaped-block placement method
JP6125132B1 (en) * 2015-10-07 2017-05-10 大裕株式会社 Reversing device for irregular block and method for installing irregular block
KR20180041244A (en) * 2015-10-07 2018-04-23 다이유 가부시키가이샤 Fixing method of reversing device and deforming block of deforming block
KR101952915B1 (en) 2015-10-07 2019-02-27 다이유 가부시키가이샤 Fixing method of reversing device and deforming block of deforming block
CN106272936A (en) * 2016-09-27 2017-01-04 中交第航务工程局有限公司 A kind of Zhi Chai mechanism for torsion-bending ratio template

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