EP0965697A1 - Method and apparatus for filling trenches - Google Patents

Method and apparatus for filling trenches Download PDF

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Publication number
EP0965697A1
EP0965697A1 EP99401498A EP99401498A EP0965697A1 EP 0965697 A1 EP0965697 A1 EP 0965697A1 EP 99401498 A EP99401498 A EP 99401498A EP 99401498 A EP99401498 A EP 99401498A EP 0965697 A1 EP0965697 A1 EP 0965697A1
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EP
European Patent Office
Prior art keywords
chassis
trench
conveyor
hopper
shovel
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.)
Granted
Application number
EP99401498A
Other languages
German (de)
French (fr)
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EP0965697B1 (en
Inventor
Marco Laurini
Alain Lebaigue
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.)
LAURINI LODOVICO & C. SNC
Societe Miniere et Commerciale SOMICO SAS
Original Assignee
Societe Miniere et Commerciale SOMICO SAS
Laurini Lodovico & C SNC
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Publication of EP0965697A1 publication Critical patent/EP0965697A1/en
Application granted granted Critical
Publication of EP0965697B1 publication Critical patent/EP0965697B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/02—Conveying equipment mounted on a dredger
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/22—Dredgers or soil-shifting machines for special purposes for making embankments; for back-filling
    • E02F5/223—Dredgers or soil-shifting machines for special purposes for making embankments; for back-filling for back-filling
    • E02F5/226—Dredgers or soil-shifting machines for special purposes for making embankments; for back-filling for back-filling with means for processing the soil, e.g. screening belts, separators; Padding machines
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/06—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/02—Travelling-gear, e.g. associated with slewing gears
    • E02F9/028—Travelling-gear, e.g. associated with slewing gears with arrangements for levelling the machine

Definitions

  • the present invention relates to a backfill method a trench and a device for the implementation of this process.
  • Such a screening and backfilling device usually includes a hopper to receive materials used for backfilling, a continuous conveyor arranged below the hopper, and a sieve system vibrators fed by the continuous conveyor and intended for fill the trench with successive layers of material having a determined particle size.
  • the whole is united a frame, which itself is supported, cantilevered above of the trench to be backfilled, by an arm carrying a tractor or similar device.
  • We can thus backfill a trench, possibly by carrying out multiple passes with one device, with different layers of the same material or of grain size materials different.
  • the chassis also has the disadvantage of being cantilevered relative to the tractor.
  • the invention proposes no longer to use a self-powered backfill system, but a screening and backfilling system towed by a hydraulic excavator of a conventional type, which ensures in addition to loading the device with backfill material screening, the hydraulic excavator-device assembly screen can move as well on the cord cuttings from the trench, only on a track laid out the other side of it.
  • the invention therefore has for first object a method of backfilling a trench, in particular using spoil from the digging of this trench, this process of towing with a shovel hydraulic, parallel to the trench, a chassis mounted on wheels or on tracks, supporting a hopper of load equipped with a grid at its lower part, load this hopper with backfill using the hydraulic shovel, to transfer the material by gravity backfill through the grid on a vibrating screen placed below the hopper, then on a conveyor continuous, placed below the vibrating screen on the chassis, transverse to its direction of movement, the sieve vibrating and the conveyor being driven by means motors carried by the chassis, and to pour the material out laterally filling in the trench using the conveyor.
  • the link with the hydraulic excavator can be a simple drawbar articulated at one end on the chassis and its other end on the hydraulic shovel.
  • the hopper is preferably pivotally mounted relative to to the chassis, at least one cylinder being provided on the chassis to straighten it by pivoting relative to it, in view of removing the largest constituents of the material backfill not passing through the grid.
  • This can be made up of simple bars arranged in parallel, for example parallel to the direction of movement of the device.
  • the conveyor it is preferably arranged transversely to the direction of movement of the chassis, under the stress of the hydraulic shovel which it is made united.
  • This conveyor is advantageously mobile in translation under the stress of a double-acting cylinder, so that it can protrude at will as well from left side than the right side of the device. He is by elsewhere driven by at least one reversible motor, by example a hydraulic motor, so that you can dump the backfill material to the right or left of the device.
  • the invention finally relates to a backfill assembly a trench, characterized in that it comprises a shovel hydraulic and a screening and dumping device a backfill material of the type which has just been defined, this device being integral in displacement of the shovel hydraulic by a connecting member such as a drawbar, so that it can be towed by the shovel.
  • the chassis of the screening device will include at each of its ends means allowing to make it integral in displacement of the shovel hydraulic, so that it can be towed by one or the other of its ends.
  • the self-propelled hydraulic excavator is designated by the reference 1
  • the device screening and backfilling towed by this excavator is designated by reference 2.
  • the shovel 1 can be of any known type.
  • the device 2 comprises a chassis 3, mounted here on tracks 4, but which could as well be carried by wheels, on which is articulated, by levers 5 and 6, a drawbar 8 articulated at its other end on the chassis of the shovel 1.
  • the lever 6 is attacked by the rod of a jack 7 carried by the chassis 3 of the screening and backfilling device.
  • This chassis 3 is linked to the structure 9 carrying the tracks 4 by a system of levers such as 10, actuated by a cylinder 11, so as to be able to maintain the chassis in a horizontal position whatever the slope of the ground on which the tracks 4.
  • a hopper 12 one end of which adjoins the shovel 1 is pivotally mounted relative to the chassis 3 under the actuation of jacks 13, receives from shovel 1 the raw materials for backfilling the trench 14 (see Figure 4), for example to bury in this cut a tube 15 which is housed there.
  • the hopper 12 has a bottom part constituted by a grid 16, here made up of bars parallel arranged longitudinally and intended to retain excessively large cuttings, which can then be removed by lifting the hopper (see figure 2).
  • the material passing through this grid falls on a vibrating screen 19, placed below the latter, then on a continuous conveyor 17, carried by the chassis 3 below of the vibrating screen and arranged transversely to the direction of movement thereof.
  • This conveyor 17 projects laterally with respect to the chassis above the trench 14 and pours into it backfill materials.
  • the conveyor 17 is driven by two reversible hydraulic motors carried by the chassis 3. As indicated above, it can also be moved transversely using a double-acting cylinder, in order to ability to project sideways on one side or the other from the chassis, so that the material can be filling both right and left of it.
  • the various cylinders of the screening and backfill and the conveyor drive motors 17 and vibrating screen are fed and operated from a hydraulic cabinet 18 carried by the chassis 3. All of these organs are remotely controlled by a remote control placed in the excavator cabin or operated by an operator near the wiring device.
  • the invention therefore provides a simple and inexpensive to backfill trenches, since the device used for backfilling is not self-propelled, but is towed by a hydraulic shovel, which has also for the function of supplying the backfilling with backfill material.
  • the two ends of the chassis 3 are substantially identical, so that the screening device 2 integral in displacement of the hydraulic excavator 1 by one or other of these ends.
  • the tracks of the screening and backfilling device can adapt to very uneven terrain and move forward for example on the cut bead 20 from trench 14 or on a runway 21 provided on the other side of this trench.
  • the hydraulic excavator-screening and backfilling is suitable for climbing or descending slopes relatively sharp, up to 25 °.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Abstract

A chassis (3) supporting the device and mounted on wheels or tracks (4) is dragged parallel to the trench by an excavator (1). Back-fill material is loaded into a hopper (12) by the excavator. The back-fill material is transferred by gravity through a grille at the bottom of the hopper onto a vibrating sieve and thence to a conveyor belt which tips the material sideways into the trench The vibrating sieve and conveyor belt are driven by motors mounted on the chassis. The conveyor can be moved in translation by a two-way jack to move from one side to the other of the chassis, and is driven by a reversible motor. The linkage to the excavator is an articulated beam (8) whose position is controlled by a series of levers and jacks (5, 6, 7). The chassis has means of being fixed to the linkage at each end. The sieve pivots relative to the chassis by means of a jack. Assembly for back-filling a trench using a chassis as above and an excavator, connected together by means of an articulated beam.

Description

La présente invention concerne un procédé de remblayage d'une tranchée et un dispositif pour la mise en oeuvre de ce procédé.The present invention relates to a backfill method a trench and a device for the implementation of this process.

On sait que, pour le transport de fluides sur de longues distances, de gaz, par exemple, ou de pétrole, on utilise des conduites du type des pipe-lines, qu'il est usuel de protéger en les enterrant dans des tranchées. Le remblayage de ces tranchées s'effectue habituellement en réutilisant les déblais de la tranchée, après criblage de ceux-ci, et l'on utilise généralement dans ce but un dispositif de criblage et de remblayage, qui est porté latéralement par un tracteur, qui se déplace le long de la tranchée.We know that for transporting fluids over long distances, gas, for example, or petroleum, we use pipes such as pipelines, which it is customary to protect by burying them in trenches. Backfilling of these trenches is usually done by reusing the cuttings from the trench, after screening them, and a device is generally used for this purpose screening and backfilling, which is carried laterally by a tractor, which moves along the trench.

Un dispositif de criblage et de remblayage de ce type comprend habituellement une trémie destinée à recevoir les matériaux utilisés pour le remblayage, un convoyeur continu disposé au-dessous de la trémie, et un système de tamis vibrants alimentés par le convoyeur continu et destinés à remplir la tranchée de couches successives de matériaux ayant une granulométrie déterminée. L'ensemble est solidaire d'un châssis, qui lui-même est supporté, en porte-à-faux au-dessus de la tranchée à remblayer, par un bras porteur d'un tracteur ou d'un dispositif analogue. On peut ainsi remblayer une tranchée, éventuellement en effectuant plusieurs passes avec un dispositif, avec différentes couches d'un même matériau ou de matériaux de granulométrie différentes.Such a screening and backfilling device usually includes a hopper to receive materials used for backfilling, a continuous conveyor arranged below the hopper, and a sieve system vibrators fed by the continuous conveyor and intended for fill the trench with successive layers of material having a determined particle size. The whole is united a frame, which itself is supported, cantilevered above of the trench to be backfilled, by an arm carrying a tractor or similar device. We can thus backfill a trench, possibly by carrying out multiple passes with one device, with different layers of the same material or of grain size materials different.

Un tel dispositif est décrit par exemple en détail dans le brevet U.S. N° 4 955 756, mais de nombreuses variantes existent sur le marché et la Demanderesse a elle-même proposé divers perfectionnements apportés à un dispositif de ce type, qui font l'objet de sa demande de brevet européen N° 0 709 526.Such a device is described for example in detail in U.S. Patent No. 4,955,756, but many variations exist on the market and the Applicant has itself proposed various improvements to a device this type, which are the subject of his European patent application No. 0 709 526.

Ces dispositifs donnent entière satisfaction, mais se révèlent relativement coûteux du fait qu'ils sont automoteurs.These devices are entirely satisfactory, but are are relatively expensive because they are self-propelled.

Le châssis présente, en outre, l'inconvénient d'être disposé en porte-à-faux par rapport au tracteur.The chassis also has the disadvantage of being cantilevered relative to the tractor.

Enfin, le remplissage de la trémie avec le matériau de remblayage doit être effectué à l'aide d'un engin indépendant du système de remblayage.Finally, the filling of the hopper with the material of backfilling must be carried out using a machine independent of the backfill system.

Pour remédier à ces inconvénients, l'invention propose d'utiliser non plus un système auto-moteur de remblayage, mais un système de criblage et de remblayage tracté par une pelle hydraulique d'un type conventionnel, qui assure en outre le chargement en matériau de remblayage du dispositif de criblage, l'ensemble pelle hydraulique-dispositif de criblage pouvant se déplacer aussi bien sur le cordon de déblais de la tranchée, que sur une piste disposée de l'autre côté de celle-ci.To remedy these drawbacks, the invention proposes no longer to use a self-powered backfill system, but a screening and backfilling system towed by a hydraulic excavator of a conventional type, which ensures in addition to loading the device with backfill material screening, the hydraulic excavator-device assembly screen can move as well on the cord cuttings from the trench, only on a track laid out the other side of it.

L'invention a par conséquent pour premier objet un procédé de remblayage d'une tranchée, notamment à l'aide des déblais provenant du creusement de cette tranchée, ce procédé consistant à tracter à l'aide d'une pelle hydraulique, parallèlement à la tranchée, un châssis monté sur roues ou sur chenilles, supportant une trémie de chargement équipée d'une grille à sa partie inférieure, à charger cette trémie en matériau de remblayage à l'aide de la pelle hydraulique, à transférer par gravité le matériau de remblayage à travers la grille sur un tamis vibrant disposé au-dessous de la trémie, puis sur un convoyeur continu, disposé au-dessous du tamis vibrant sur le châssis, transversalement à sa direction de déplacement, le tamis vibrant et le convoyeur étant entraínés par des moyens moteurs portés par le châssis, et à déverser le matériau de remplissage latéralement dans la tranchée à l'aide du convoyeur.The invention therefore has for first object a method of backfilling a trench, in particular using spoil from the digging of this trench, this process of towing with a shovel hydraulic, parallel to the trench, a chassis mounted on wheels or on tracks, supporting a hopper of load equipped with a grid at its lower part, load this hopper with backfill using the hydraulic shovel, to transfer the material by gravity backfill through the grid on a vibrating screen placed below the hopper, then on a conveyor continuous, placed below the vibrating screen on the chassis, transverse to its direction of movement, the sieve vibrating and the conveyor being driven by means motors carried by the chassis, and to pour the material out laterally filling in the trench using the conveyor.

L'invention a également pour objet un dispositif apte à être tracté, pour le criblage d'un matériau de remblayage et le déversement de celui-ci dans une tranchée, et destiné à être utilisé dans le procédé défini ci-dessus, ce dispositif étant caractérisé en ce qu'il comporte :

  • un châssis monté sur roues ou sur chenilles et équipé d'un moins un organe de liaison avec une pelle hydraulique apte à le remorquer ;
  • sur ce châssis, une trémie de chargement du matériau de remblayage équipée d'une grille à sa partie inférieure ;
  • au-dessous de cette grille, un tamis vibrant ;
  • au-dessous de ce tamis vibrant, un convoyeur continu dont une extrémité fait saillie latéralement par rapport au châssis ;
  • et des moyens d'entraínement du tamis vibrant et du convoyeur portés par le châssis.
The subject of the invention is also a device capable of being towed, for screening a backfill material and pouring it into a trench, and intended to be used in the process defined above, this device being characterized in that it comprises:
  • a chassis mounted on wheels or on tracks and fitted with at least one connecting member with a hydraulic shovel capable of towing it;
  • on this chassis, a hopper for loading the backfill material equipped with a grid at its lower part;
  • below this grid, a vibrating screen;
  • below this vibrating screen, a continuous conveyor, one end of which projects laterally with respect to the chassis;
  • and means for driving the vibrating screen and the conveyor carried by the chassis.

L'organe de liaison avec la pelle hydraulique peut être un simple timon articulé à une extrémité sur le châssis et à son autre extrémité sur la pelle hydraulique.The link with the hydraulic excavator can be a simple drawbar articulated at one end on the chassis and its other end on the hydraulic shovel.

La trémie est de préférence montée pivotante par rapport au châssis, au moins un vérin étant prévu sur le châssis pour la redresser par pivotement par rapport à celui-ci, en vue d'évacuer les plus gros constituants du matériau de remblayage ne passant pas à travers la grille.The hopper is preferably pivotally mounted relative to to the chassis, at least one cylinder being provided on the chassis to straighten it by pivoting relative to it, in view of removing the largest constituents of the material backfill not passing through the grid.

Celle-ci peut être constituée de simples barreaux disposés en parallèle, par exemple parallèlement à la direction de déplacement du dispositif.This can be made up of simple bars arranged in parallel, for example parallel to the direction of movement of the device.

Quant au convoyeur, il est de préférence disposé transversalement à la direction de déplacement du châssis, sous la sollicitation de la pelle hydraulique dont il est rendu solidaire. Ce convoyeur est avantageusement mobile en translation sous la sollicitation d'un vérin à double effet, de manière à pouvoir faire saillie à volonté aussi bien du côté gauche que du côté droit du dispositif. Il est par ailleurs entraíné par au moins un moteur réversible, par exemple un moteur hydraulique, de manière à pouvoir déverser le matériau de remblayage à droite ou à gauche du dispositif.As for the conveyor, it is preferably arranged transversely to the direction of movement of the chassis, under the stress of the hydraulic shovel which it is made united. This conveyor is advantageously mobile in translation under the stress of a double-acting cylinder, so that it can protrude at will as well from left side than the right side of the device. He is by elsewhere driven by at least one reversible motor, by example a hydraulic motor, so that you can dump the backfill material to the right or left of the device.

L'invention a enfin pour objet un ensemble de remblayage d'une tranchée, caractérisé en ce qu'il comprend une pelle hydraulique et un dispositif de criblage et de déversement d'un matériau de remblayage du type qui vient d'être défini, ce dispositif étant solidaire en déplacement de la pelle hydraulique par un organe de liaison tel qu'un timon, de manière à pouvoir être tracté par la pelle.The invention finally relates to a backfill assembly a trench, characterized in that it comprises a shovel hydraulic and a screening and dumping device a backfill material of the type which has just been defined, this device being integral in displacement of the shovel hydraulic by a connecting member such as a drawbar, so that it can be towed by the shovel.

De préférence, le châssis du dispositif de criblage comprendra à chacune de ses extrémités de moyens permettant de le rendre solidaire en déplacement de la pelle hydraulique, afin qu'il puisse être tracté par l'une ou l'autre de ses extrémités.Preferably, the chassis of the screening device will include at each of its ends means allowing to make it integral in displacement of the shovel hydraulic, so that it can be towed by one or the other of its ends.

D'autres caractéristiques et avantages de l'invention apparaítront dans la description détaillée qui va suivre d'une forme de mise en oeuvre de celle-ci. Dans cette description, on se réfèrera aux dessins schématiques annexés, sur lesquels :Other characteristics and advantages of the invention will appear in the detailed description which follows of a form of implementation thereof. In this description, refer to schematic drawings annexed, on which:

La figure 1 est une vue en élévation latérale d'un ensemble pelle hydraulique-dispositif de criblage et de remblayage tracté par cette pelle, cet ensemble étant représenté dans une position où la pelle descend une pente ;

  • La figure 2 est une vue analogue à la figure 1, dans la position où la pelle gravit une côte ;
  • La figure 3 est une vue de dessus avec arrachement du dispositif de criblage et de remblayage remorqué par la pelle hydraulique ;
  • La figure 4 illustre la position de ce dispositif de criblage et de remblayage sur un terrain inégal, en position latérale par rapport à la tranchée à remblayer.
    • Figure 1 is a side elevational view of a hydraulic excavator-screening and backfilling device towed by this excavator, this assembly being shown in a position where the excavator descends a slope;
  • Figure 2 is a view similar to Figure 1, in the position where the shovel climbs a hill;
  • Figure 3 is a top view with cutaway of the screening and backfilling device towed by the hydraulic shovel;
  • FIG. 4 illustrates the position of this screening and backfilling device on uneven ground, in a lateral position relative to the trench to be backfilled.

    • Sur ces dessins, la pelle hydraulique auto-motrice est désignée par la référence 1, tandis que le dispositif de criblage et de remblayage tracté par cette pelle est désigné par la référence 2.In these drawings, the self-propelled hydraulic excavator is designated by the reference 1, while the device screening and backfilling towed by this excavator is designated by reference 2.

    La pelle 1 peut être de tout type connu.The shovel 1 can be of any known type.

    Le dispositif 2 comporte un châssis 3, monté ici sur des chenilles 4, mais qui pourrait aussi bien être porté par des roues, sur lequel est articulé, par des leviers 5 et 6, un timon 8 articulé à son autre extrémité sur le châssis de la pelle 1.The device 2 comprises a chassis 3, mounted here on tracks 4, but which could as well be carried by wheels, on which is articulated, by levers 5 and 6, a drawbar 8 articulated at its other end on the chassis of the shovel 1.

    Le levier 6 est attaqué par la tige d'un vérin 7 porté par le châssis 3 du dispositif de criblage et de remblayage.The lever 6 is attacked by the rod of a jack 7 carried by the chassis 3 of the screening and backfilling device.

    Ce châssis 3 est lié à la structure 9 portant les chenilles 4 par un système de leviers tels que 10, actionnables par un vérin 11, de manière à pouvoir maintenir le châssis en position horizontale quelle que soit l'inclinaison du terrain sur lequel prennent appui les chenilles 4.This chassis 3 is linked to the structure 9 carrying the tracks 4 by a system of levers such as 10, actuated by a cylinder 11, so as to be able to maintain the chassis in a horizontal position whatever the slope of the ground on which the tracks 4.

    Une trémie 12, dont une extrémité contiguë à la pelle 1 est montée pivotante par rapport au châssis 3 sous la sollicitation de vérins 13, reçoit de la pelle 1 les matériaux bruts destinés au remblayage de la tranchée 14 (voir figure 4), par exemple en vue d'enfouir dans cette tranchée un tube 15 qui y est logé.A hopper 12, one end of which adjoins the shovel 1 is pivotally mounted relative to the chassis 3 under the actuation of jacks 13, receives from shovel 1 the raw materials for backfilling the trench 14 (see Figure 4), for example to bury in this cut a tube 15 which is housed there.

    Les matériaux de remblayage sont le plus souvent constitués par les déblais mêmes de la tranchée 4 et il convient de les cribler avant le remblayage ce celle-ci. Dans ce but, la trémie 12 comporte une partie de fond constituée par une grille 16, ici constituée de barreaux parallèles disposés longitudinalement et destinés à retenir les déblais trop volumineux, que l'on peut ensuite évacuer en soulevant la trémie (voir figure 2).Backfill materials are most often formed by the same cuttings from trench 4 and it should be screened before backfilling this one. For this purpose, the hopper 12 has a bottom part constituted by a grid 16, here made up of bars parallel arranged longitudinally and intended to retain excessively large cuttings, which can then be removed by lifting the hopper (see figure 2).

    Le matériau passant au travers de cette grille tombe sur un tamis vibrant 19, disposé au-dessous de celle-ci, puis sur un convoyeur continu 17, porté par le châssis 3 au-dessous du tamis vibrant et disposé transversalement à la direction du déplacement de celui-ci.The material passing through this grid falls on a vibrating screen 19, placed below the latter, then on a continuous conveyor 17, carried by the chassis 3 below of the vibrating screen and arranged transversely to the direction of movement thereof.

    Ce convoyeur 17 fait saillie latéralement par rapport au châssis au-dessus de la tranchée 14 et déverse dans celle-ci les matériaux de remblai. Le convoyeur 17 est entraíné par deux moteurs hydrauliques réversibles portés par le châssis 3. Comme indiqué ci-dessus, il peut en outre être déplacé transversalement à l'aide d'un vérin double effet, afin de pouvoir faire saillie latéralement d'un côté ou de l'autre du châssis, de manière à pouvoir déverser le matériau de remplissage aussi bien à droite qu'à gauche de celui-ci.This conveyor 17 projects laterally with respect to the chassis above the trench 14 and pours into it backfill materials. The conveyor 17 is driven by two reversible hydraulic motors carried by the chassis 3. As indicated above, it can also be moved transversely using a double-acting cylinder, in order to ability to project sideways on one side or the other from the chassis, so that the material can be filling both right and left of it.

    Les divers vérins du dispositif de criblage et de remblayage et les moteurs d'entraínement du convoyeur 17 et du tamis vibrant sont alimentés et actionnés à partir d'une armoire hydraulique 18 portée par le châssis 3. Tous ces organes sont commandés à distance par une télécommande placée dans la cabine de la pelle hydraulique ou actionnée par un opérateur à proximité du dispositif de câblage.The various cylinders of the screening and backfill and the conveyor drive motors 17 and vibrating screen are fed and operated from a hydraulic cabinet 18 carried by the chassis 3. All of these organs are remotely controlled by a remote control placed in the excavator cabin or operated by an operator near the wiring device.

    L'invention apporte, par conséquent, un moyen simple et peu coûteux pour remblayer des tranchées, puisque le dispositif utilisé pour le remblayage n'est pas automoteur, mais est remorqué par une pelle hydraulique, laquelle a également pour fonction d'alimenter le dispositif de remblayage en matériau de remblai.The invention therefore provides a simple and inexpensive to backfill trenches, since the device used for backfilling is not self-propelled, but is towed by a hydraulic shovel, which has also for the function of supplying the backfilling with backfill material.

    On notera que les deux extrémités du châssis 3 sont sensiblement identiques, de manière à pouvoir rendre le dispositif du criblage 2 solidaire en déplacement de la pelle hydraulique 1 par l'une ou l'autre de ces extrémités.It will be noted that the two ends of the chassis 3 are substantially identical, so that the screening device 2 integral in displacement of the hydraulic excavator 1 by one or other of these ends.

    Comme on le voit sur la figure 4, les chenilles du dispositif de criblage et de remblayage peuvent s'adapter à des terrains très inégaux et avancer par exemple sur le cordon de déblai 20 de la tranchée 14 ou sur une piste 21 prévue de l'autre côté de cette tranchée.As seen in Figure 4, the tracks of the screening and backfilling device can adapt to very uneven terrain and move forward for example on the cut bead 20 from trench 14 or on a runway 21 provided on the other side of this trench.

    Comme on le voit également sur les figures 1 et 2, l'ensemble pelle hydraulique-dispositif de criblage et de remblayage est apte à gravir ou à descendre des pentes relativement accusées, pouvant aller jusqu'à 25°.As can also be seen in Figures 1 and 2, the hydraulic excavator-screening and backfilling is suitable for climbing or descending slopes relatively sharp, up to 25 °.

    Claims (8)

    Procédé de remblayage d'une tranchée (14), notamment à l'aide des déblais provenant du creusement de cette tranchée, ce procédé consistant à tracter à l'aide d'une pelle hydraulique (1), parallèlement à la tranchée (14), un châssis (3) monté sur roues ou sur chenilles (4), supportant une trémie de chargement (12) équipée d'une grille (16) à sa partie inférieure, à charger cette trémie (12) en matériau de remblayage à l'aide de la pelle hydraulique (1), à transférer par gravité le matériau de remblayage à travers la grille (16) sur un tamis vibrant disposé au-dessous de la trémie (12), puis sur un convoyeur continu (17), disposé au-dessous du tamis vibrant sur le châssis (3), transversalement à sa direction de déplacement, le tamis vibrant et le convoyeur étant entraínés par des moyens moteurs portés par le châssis, et à déverser le matériau de remplissage latéralement dans la tranchée (14) à l'aide du convoyeur.Method for backfilling a trench (14), in particular using the cuttings from the digging of this trench, this process consisting in towing using a hydraulic shovel (1), parallel to the trench (14), a chassis (3) mounted on wheels or on tracks (4), supporting a loading hopper (12) equipped with a grid (16) at its lower part, to load this hopper (12) with material backfilling using the hydraulic shovel (1), gravity transfer the backfill material through the grid (16) on a vibrating screen arranged below the hopper (12), then on a continuous conveyor (17), arranged below vibrating screen on the chassis (3), transverse to its direction of movement, the sieve vibrating and the conveyor being driven by means motors carried by the chassis, and to pour the material out laterally filling in the trench (14) using the conveyor. Dispositif apte à être tracté, pour le criblage d'un matériau de remblayage et le déversement de celui-ci dans une tranchée (14), et destiné à être utilisé dans le procédé selon la revendication 1, ce dispositif étant caractérisé en ce qu'il comporte : un châssis (3) monté sur roues ou sur chenilles (4) et équipé d'un moins un organe (8) de liaison avec une pelle hydraulique apte à le remorquer ; sur ce châssis, une trémie (12) de chargement du matériau de remplissage équipée d'une grille (16) à sa partie inférieure ; au-dessous de la grille (16), un tamis vibrant (19) ; au-dessous de ce tamis vibrant, un convoyeur continu (17) dont une extrémité fait saillie latéralement par rapport au châssis (3) ; et des moyens d'entraínement du tamis vibrant et du convoyeur (17) portés par le châssis. Device capable of being towed, for screening a fill material and pouring it into a trench (14), and intended to be used in the process according to claim 1, this device being characterized in that it comprises : a chassis (3) mounted on wheels or on tracks (4) and equipped with at least one member (8) for connection with a hydraulic shovel capable of towing it; on this chassis, a hopper (12) for loading the filling material equipped with a grid (16) at its lower part; below the grid (16), a vibrating screen (19); below this vibrating screen, a continuous conveyor (17), one end of which projects laterally with respect to the frame (3); and means for driving the vibrating screen and the conveyor (17) carried by the chassis. Dispositif selon la revendication 2, caractérisé en ce que le convoyeur (17) est mobile en translation sous la sollicitation d'un vérin double effet, de manière à pouvoir faire saillie d'un côté ou de l'autre du châssis (3).Device according to claim 2, characterized in that the conveyor (17) is movable in translation under the biasing of a double-acting cylinder, so that protrude from either side of the chassis (3). Dispositif selon la revendication 3, caractérisé en ce que le convoyeur (17) est entraíné par un moteur réversible.Device according to claim 3, characterized in that the conveyor (17) is driven by a motor reversible. Dispositif selon l'une des revendications 2 à 4, caractérisé en ce que l'organe de liaison avec une pelle hydraulique est un timon (8) articulé par rapport au châssis (3) et réglable en position à l'aide d'un système de leviers et de vérins (5, 6, 7).Device according to one of claims 2 to 4, characterized in that the connecting member with a shovel hydraulic is a drawbar (8) articulated relative to the chassis (3) and adjustable in position using a lever system and cylinders (5, 6, 7). Dispositif selon l'une des revendications 2 à 5, caractérisé en ce que le châssis est équipé à chacune de ses extrémités d'un moyen permettant de le rendre solidaire d'un organe (8) de liaison avec une pelle hydraulique.Device according to one of claims 2 to 5, characterized in that the chassis is equipped with each of its ends of a means enabling it to be secured to a member (8) for connection with a hydraulic shovel. Dispositif selon l'une des revendications 2 à 6, caractérisé en ce que la trémie (12) est montée pivotante par rapport au châssis (3) sous la sollicitation d'au moins un vérin (13).Device according to one of claims 2 to 6, characterized in that the hopper (12) is pivotally mounted relative to the chassis (3) under the stress of at least a jack (13). Ensemble de remblayage d'une tranchée (14), caractérisé en ce qu'il comprend une pelle hydraulique (1) et un dispositif (2) de criblage et de déversement d'un matériau de remblayage selon l'une des revendications 2 à 7, ce dispositif (2) étant solidaire de la pelle hydraulique par un organe de liaison tel qu'un timon (8), de manière à pouvoir être tracté par la pelle (1).Trench backfill assembly (14), characterized in that it comprises a hydraulic shovel (1) and a device (2) for screening and discharging a backfill material according to one of claims 2 to 7, this device (2) being integral with the hydraulic shovel by a connecting member such as a drawbar (8), so as to be able to be towed by the shovel (1).
    EP99401498A 1998-06-19 1999-06-17 Method and apparatus for filling trenches Expired - Lifetime EP0965697B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR9807770A FR2780079B1 (en) 1998-06-19 1998-06-19 METHOD AND DEVICE FOR BACKFILLING A TRENCH
    FR9807770 1998-06-19

    Publications (2)

    Publication Number Publication Date
    EP0965697A1 true EP0965697A1 (en) 1999-12-22
    EP0965697B1 EP0965697B1 (en) 2003-10-15

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    Application Number Title Priority Date Filing Date
    EP99401498A Expired - Lifetime EP0965697B1 (en) 1998-06-19 1999-06-17 Method and apparatus for filling trenches

    Country Status (7)

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    EP (1) EP0965697B1 (en)
    AU (1) AU747651B2 (en)
    CA (1) CA2275067A1 (en)
    DE (1) DE69912026T2 (en)
    ES (1) ES2209353T3 (en)
    FR (1) FR2780079B1 (en)
    PT (1) PT965697E (en)

    Cited By (4)

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    WO2004026478A2 (en) * 2002-09-17 2004-04-01 Rossi Jr Robert Richard Mobile impact crusher assembly
    GB2405394A (en) * 2003-08-29 2005-03-02 Kevin Gates A material handling apparatus comprising a conveyor
    US6871807B2 (en) 2002-09-17 2005-03-29 Robert R. Rossi, Jr. Mobile impact crusher assembly
    US6915972B2 (en) 2002-09-17 2005-07-12 Robert R. Rossi, Jr. Mobile jaw crusher assembly

    Families Citing this family (5)

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    Publication number Priority date Publication date Assignee Title
    AU2003269608B2 (en) * 2002-11-28 2007-08-02 Mitchell Australasia Pty Ltd. Trench forming and preparing apparatus
    GB2412936B (en) * 2002-11-28 2006-06-21 Mitchell Australasia Pty Ltd Trench forming and preparing apparatus
    AU2002952972A0 (en) * 2002-11-28 2002-12-12 Mitchell Australasia Pty Ltd Trench forming and preparing apparatus
    DE102018201077B3 (en) 2018-01-24 2019-05-16 HGS Hirschfelder Greifer- und Stahlbau GmbH Device for profile-controlled drilling and filling of pipe and cable trenches
    CN114922242B (en) * 2022-05-26 2024-06-21 利高实业(广州)有限公司 Foundation landfill device for building construction

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    GB2405394A (en) * 2003-08-29 2005-03-02 Kevin Gates A material handling apparatus comprising a conveyor

    Also Published As

    Publication number Publication date
    AU3574599A (en) 2000-01-06
    EP0965697B1 (en) 2003-10-15
    DE69912026D1 (en) 2003-11-20
    DE69912026T2 (en) 2004-07-15
    FR2780079B1 (en) 2000-09-08
    PT965697E (en) 2004-03-31
    AU747651B2 (en) 2002-05-16
    CA2275067A1 (en) 1999-12-19
    FR2780079A1 (en) 1999-12-24
    ES2209353T3 (en) 2004-06-16

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