EP1900879B1 - Supporting panel - Google Patents

Supporting panel Download PDF

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Publication number
EP1900879B1
EP1900879B1 EP07011576A EP07011576A EP1900879B1 EP 1900879 B1 EP1900879 B1 EP 1900879B1 EP 07011576 A EP07011576 A EP 07011576A EP 07011576 A EP07011576 A EP 07011576A EP 1900879 B1 EP1900879 B1 EP 1900879B1
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EP
European Patent Office
Prior art keywords
supporting panel
longitudinal beam
panel
chassis
works vehicle
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.)
Not-in-force
Application number
EP07011576A
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German (de)
French (fr)
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EP1900879A1 (en
Inventor
Michel Tizon
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.)
Travaux Urbains Et Ruraux Nationaux Et Occidentaux (sturno) Sa Ste
Original Assignee
Travaux Urbains Et Ruraux Nationaux Et Occidentaux (sturno) Sa Ste
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Publication of EP1900879A1 publication Critical patent/EP1900879A1/en
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Publication of EP1900879B1 publication Critical patent/EP1900879B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/06—Foundation trenches ditches or narrow shafts
    • E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/06—Foundation trenches ditches or narrow shafts
    • E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
    • E02D17/086—Travelling trench shores

Definitions

  • the present invention relates to a shoring panel, and a construction machine comprising such a shoring panel.
  • each vertical wall of the trench When a trench is to be dug into the ground, for example to deposit water pipes, each vertical wall of the trench must be secured to prevent the workers in the trench from being buried under a landslide of the trench. one of these walls.
  • a shoring panel generally consisting of a steel plate, is arranged along each wall and spacers are arranged between two shoring panels facing each other in order to force them against the corresponding wall. of the trench.
  • a pipeline generally consists of pipes of a defined diameter that fit into each other and manholes whose dimensions are greater than this diameter and which are positioned approximately every 50 meters on the pipes.
  • the trench to be dug for such a pipe thus comprises a first section adapted to the pipe diameter and a second section larger than the first and adapted to the dimensions of manholes. It is then necessary to change the distance between two shoring panels facing each other depending on the section where they are located.
  • the spreading panels used in the first section are also generally longer than those used in the second section and, in this case, it is necessary to have two different sets of panels which increases the tooling costs.
  • the shoring panels must follow the progress of the workers in laying the pipe. Thus, a digger digs the trench and then pulls the shoring panels along the trench thus dug. The workers can then work safely while the digger continues digging the trench.
  • the excavator stops digging to move the shoring panels and, when the trench is fully dug, the shovel must remain available to fire the shoring panels.
  • This method of removal of the pipeline therefore permanently monopolizes the excavator, which must always remain available to shoot the shoring panels. Such monopolization is expensive because the excavator and its driver remain unused most of the time.
  • the document FR-A-2,799,774 discloses a rigid shoring panel comprising a central module and a side wing.
  • An object of the present invention is to provide a shoring panel and a construction machine comprising such a shoring panel which do not have the drawbacks of the prior art and which in particular allow a better use of the equipment. and staff by limiting the number of shoring boards and the number of workers needed.
  • the shoring panel comprises a first lateral wing and a second lateral wing disposed on either side of the central module.
  • the or each lateral wing is provided with a locking device in rotation.
  • the or each rotational locking device constitutes a motor element designed to rotate the side wing considered.
  • the shoring panel is provided with at least one passage hatch.
  • the or each passage hatch is mounted free to rotate about an axis of rotation which is substantially vertical when the shoring panel is in the use position.
  • the or each passage door is provided with a locking device.
  • the work machine comprises lifting devices provided for lifting said moving means, in particular during the widening and narrowing of said frame.
  • said adjustment means comprise a telescopic front transverse beam consisting of a front male beam and a movable front female beam inside said front male beam, and a telescopic rear transverse beam consisting of a rear male beam and a movable rear female beam inside said rear male beam.
  • the two shoring panels are disposed within the space limited by the first longitudinal beam, the second longitudinal beam, the front transverse beam and the rear transverse beam.
  • one of the shoring panels is movably mounted on said first longitudinal beam and the other shoring panel is movably mounted on said second longitudinal beam.
  • the construction machine comprises, for each shoring panel, at least one guiding device provided to cooperate with said shoring panel during its vertical movement.
  • each guiding device comprises at least one sliding roller secured to the frame and each shoring panel comprises at least one guide rail in which is rolled one of the sliding rollers.
  • the work machine comprises at least one pulling device provided for pulling on pipes of a pipe to be fitted.
  • the pulling device comprises fastening means provided for fixing said pulling device on the frame or on the shoring panel.
  • the work machine comprises two pulling devices arranged on either side of the pipes to be fitted.
  • the Fig. 1 represents a shoring panel 100 which comprises a central module 102, a first lateral wing 104 and a second lateral wing 106.
  • two shoring panels 100 are disposed against the opposite walls of the trench and are held in position by a device which is described hereinafter.
  • the face of the central module 102 which is seen on the Fig. 1 is placed against a wall of the trench so as to support the wall and protect the workers working in the trench. For this purpose, on the height of the trench, the shoring panel 100 is full.
  • the lateral wings 104 and 106 are disposed on either side of the central module 102 and abut against the wall and, as for the central module 102, the first lateral wing 104 and the second lateral wing 106 are full on the height of the trench.
  • the central module 102 and the lateral wings 104 and 106 are in the extension of each other and form a shoring panel 100 whose dimensions are equivalent to the dimensions of the shoring panels of the state of the art used to support the trench where the pipes are placed.
  • the central module 102 has a length of 2 meters and each lateral wing 104, 106 has a length of 1 meter, the assembly thus forming a shoring panel 100 of about 4 meters.
  • the trench intended for the removal of a pipe with manholes has a first section adapted to the diameter of the pipes and a second section wider than the first and adapted to the dimensions of manholes.
  • the first portion of the trench intended to receive the pipes is longer than the second portion of the trench intended to receive the manholes and the length of the shoring panel 100 must therefore be greater in the case where it is disposed in the first portion only in the case where it is deposited in the second portion.
  • the length of the shoring panel 100 must be able to be modulated between a first length adapted to the first portion of the trench and a second length shorter than the first and adapted to the second portion. of the trench.
  • the trench thus consists of a succession of a first portion and a second portion.
  • the lateral wings 104 and 106 are rotatably mounted relative to the central module 102 about an axis of rotation which is substantially vertical when the shoring panel 100 is in the use position. It is thus possible to retract each lateral wing 104, 106 and this independently of one another.
  • Each side wing 104, 106 is mounted on a hinge 108, 110 which is articulated between the central module 102 and the corresponding lateral wing 104, 106.
  • each wing 104, 106 must be locked in rotation.
  • a rotational locking device which is described below.
  • each enlargement of the trench is created.
  • a narrowing of the trench is created.
  • Each enlargement and narrowing may take the form of a step or incline.
  • the particular design of the shoring panel 100 of the invention and, in particular the presence of the lateral wings 104 and 106, makes it possible to support each enlargement and each narrowing. Indeed, when the shoring panel 100 is disposed at a second portion of the trench, each side wing 104, 106 abuts against a constriction or expansion and thus the safety of workers is improved.
  • the Fig. 2 represents the shoring panel 100 seen from behind, that is to say seen from inside the trench.
  • the rotational locking device here consists, for each side wing 104, 106, of a locking cylinder 202, 204, for example a hydraulic cylinder.
  • Each locking cylinder 202, 204 is connected to the corresponding lateral wing 104, 106 on the one hand, and to the central module 102, on the other hand.
  • the workers can independently control each locking cylinder 202, 204 and each locking cylinder 202, 204 is provided to lock the lateral wing 104, 106 considered in the desired position but also to rotate the side wing 104, 106 considered until 'to the position desired.
  • each rotational locking device 202, 204 also constitutes a motor element designed to rotate the side wing 104, 106 considered.
  • the central panel 102 is provided with at least one passage door 112, 114 which can be retracted in order to let through the pipes.
  • these passage doors 112 and 114 are described in the context of the shoring panel 100 of the invention, they can also be implemented on a shoring panel of the state of the art.
  • each flap 112, 114 is mounted free to rotate about an axis of rotation which is substantially vertical when the shoring panel 100 is in the use position.
  • Each flap 112, 114 is mounted on a hinge 116 which is articulated between the central module 102 and the corresponding flap 112, 114. It is thus possible to retract each passage door 112, 114 independently of one another.
  • the spreading panel 100 is provided with two groups of three through-hatches 112 and 114 which extend over approximately half the height of the central module 102.
  • the number and position of the passage doors 112 and 114 to be retracted can be easily modulated. This possibility of modulation prevents a too large surface of the wall of the trench is supported when the retraction of a single passage hatch 112, 114 is sufficient to allow through pipes.
  • Each flap 112, 114 is provided with a locking device 206 which maintains the passage door 112, 114 considered in position against the wall of the trench, when it is not retracted.
  • the Fig. 3 represents an enlargement of the blocking device 206.
  • the central module 102 is provided with a first securing arm 308 and the flap 112 is provided with a second securing arm 310.
  • the hinge arm 302 is rotatably mounted relative to the second securing arm 310 by the introduction of a hinge pin 304.
  • the hinge arm 302 articulation 302 is assembled to the first securing arm 308 by virtue of the introduction of a pin 306 which can be withdrawn, thus releasing the hinge arm 302 from the first securing arm 308.
  • the hinge arm 302 can be pulled inward of the trench, also driving the flap 112 into the trench.
  • passage hatches 112, 114 is not limited to the central module 102, but one or more passage doors 112, 114 may also be provided in the side wings 104, 106.
  • the shoring panel 100 comprises a rigid supporting structure comprising a first guide rail 122, a second guide rail 124, a first reinforcement means 126 and a second reinforcement means 128.
  • Each guide rail 122, 124 whose The function described below extends vertically while each reinforcing means 126, 128 extends horizontally between the first guide rail 122 and the second guide rail 124 to stiffen the supporting structure.
  • a securing means 120 which function is described below.
  • the Fig. 4 represents a side view of a work machine 400 intended to transport, position and maintain in position two shoring panels 100 in the trench.
  • the Fig. 5 represents a sectional view along the line VV of the Fig. 4 and the Fig. 6 represents a top view of the construction machine 400 of the Fig. 4 .
  • the work machine 400 is disposed on the ground 450 and can move on the latter by means of displacement which are, in the embodiment described, consist of tracks 404 which are arranged on either side of the 400 The work machine 400 can thus move along the trench.
  • the means of displacement may take other forms, such as ski wheels, or others.
  • the frame 430 comprises adjustment means 408 and 410 provided for widening and shrinking the frame 430 to adjust the spacing between the two panels. Shoring 100.
  • the chassis 430 comprises a first longitudinal beam 406 resting on one of the tracks 404 ( Fig. 5 ), a second longitudinal beam 602 ( Fig. 6 ) resting on the other caterpillar 404 ( Fig. 5 ) and parallel to said first longitudinal beam 406, a front transverse beam 408 and a rear transverse beam 410.
  • the front transverse beam 408 connects one end of the first longitudinal beam 406 to one end of the second longitudinal beam 602, and the transverse beam.
  • rear 410 which is parallel to the front transverse beam 408 connects the other end of the first longitudinal beam 406 to the other end of the second longitudinal beam 602.
  • each longitudinal beam 406, 602 extends from the front to the rear of the work machine 400 and each transverse beam 408, 410 extends from the left side to the right side of the work machine 400.
  • the frame 430 thus has a substantially rectangular hollow shape, that is to say, as is better seen on the Fig. 6 , that the space between the beams 406, 602, 408 and 410 is empty and this allows the establishment of two shoring panels 100 within this space. Inside this space are arranged, successively, the pipes 670a and 670b constituting the pipe.
  • One of the spreading panels 100 is movably mounted on the first longitudinal beam 406 and the other shoring panel 100 is movably mounted on the second longitudinal beam 602.
  • a control station 414 At the rear of the machine 400 is arranged a control station 414 at which a technician 412 is placed to control the machine 400.
  • the control station 414 In order to prevent the fall of the technician 412, the control station 414 is limited by a guard rail 416 which extends transversely with respect to the work machine 400. From the control station 414, the technician 412 can control the movements of the various elements such as those of each locking cylinder 202, 204.
  • the displacement means 402 takes the form of a telescopic mast 402 which cooperates with the corresponding shoring panel 100 via the securing means 120.
  • the operation of the work machine 400 is then as follows.
  • the work machine 400 is positioned above the beginning of the trench, the shoring panels 100 are pressed against the walls of the trench and the workers can work on the first pipe 670a safely.
  • the shoring panels 100 can then be moved by moving the work machine 400 in the direction of the arrow 680 and be positioned at the next portion of the trench.
  • the workers can then work on the second pipe 670b safely and, in particular, they can fire on the second pipe 670b with pulling devices 620 which are described hereinafter, in order to facilitate the interlocking of the 670a and 670b pipes.
  • the construction machine 400 includes means for allowing the establishment of a shoring panel 100 against each wall of the trench and this, regardless of the width of the latter .
  • the work machine 400, and in particular its frame 430 are provided to be able to expand and shrink transversely.
  • the rectangle forming the frame 430 may be deformed by elongation or shortening of the front transverse beams 408 and rear 410.
  • Said adjustment means for adjusting the spacing between the two shoring panels 100 comprise, then, the transverse beam before 408 and the rear transverse beam 410.
  • the transverse beam before 408 is telescopic and consists of a front male beam 604 and a front female beam 606 movable within said front male beam 604, and the rear transverse beam 410 is telescopic and consists of a rear male beam 608 and a rear female beam 610 movable within said rear male beam 608.
  • a displacement device of the hydraulic cylinder type, is put in place at each transverse beam 408, 410.
  • Each displacement device is connected, on the one hand, to the male beam 604 (respectively 608) and, on the other hand, on the other hand, to the corresponding female beam 606 (respectively 610), to make it possible to shorten or lengthen the transverse beams 408 and 410.
  • Each displacement device is controlled from the control station 414.
  • the railing 416 comprises adaptation means provided to adapt the length of the railing 416 to the deformation of the frame 430.
  • adaptation means can, for example, take the form of barriers that can be extended or to shorten by sliding in one another.
  • control station floor 414 comprises adaptation means provided to adapt the length of the floor to the deformation of the frame 430.
  • adaptation means can take the form of a bridge 660 secured to the beam rear male 608 and sliding on the rear female beam 610.
  • each stabilizing device 500 is operated by means of an operating device 422, 424 controllable from the control station 114.
  • each stabilization device 500 comprises a foot 506, a leg 508 and the operating device 424.
  • the foot 506 is mounted in the lower part of the leg 508 which is mounted on the operating device 424 which comprises a set of jacks 510.
  • the operating device 424 deploys the leg 508 so that to come and put the foot 506 on the ground 450.
  • each longitudinal beam 406, 602 is provided with two stabilizing devices 500.
  • Each stabilizing device 500 is provided to take three positions.
  • the first position is a rest position corresponding to that shown on the Fig. 5 and wherein each stabilizer 500 is retracted.
  • the second position is a stabilization position in which each foot 506 bears on the ground 450 but where the displacement means 404 remain in contact with the ground 450.
  • the third position corresponds to an extension position in which each foot is in contact with the ground 450 but where the force exerted by the set of jacks 510 is such that the displacement means 404 are raised and are no longer in contact with the ground 450.
  • This position makes it possible to disengage the displacement means 404 from the ground 450 and thus facilitates the widening and narrowing of the frame 430 since the displacement means 404 no longer rub on the ground 450, avoiding, moreover, a destabilization of the soil 450 under the effect of friction.
  • Each stabilizing device 500 is then a lifting device.
  • the displacement means 404 are raised one after the other.
  • each shoring panel 100 is guided by two lower guiding devices 502 and two upper guiding devices 504.
  • the introduction of two lower guiding devices 502 and two upper guiding devices 504 for each shoring panel 100 allows to ensure better guidance of it.
  • the telescopic mast 402 is disposed substantially in the middle between the two upper guide devices 504 to prevent the shoring panel 100 skews during its vertical movement.
  • the Fig. 6a represents an enlargement of detail VI of the Fig. 6 and it represents an upper guide device 504.
  • the spreading panel 100 here comprises a second guide rail 124.
  • the second guide rail 124 consists of two grooves, each being delimited by a first rib 656 and a second rib 658.
  • the first longitudinal beam 406 is provided with two beams and at the end of each of these beams is provided a sliding roller 652.
  • Each sliding roller 652 is rotatable about a horizontal axis and parallel to the ribs 656 and 658 and is positioned in one of the grooves, that is to say between the first rib 656 and the second rib 658.
  • the dimensions of each sliding roller 652 and each groove are such that during the vertical movement of the panel shoring 100, each slip roller 652 rolls on one of the ribs 656 or 658, that is to say within the second guide rail 124.
  • each shoring panel 100 may take other forms such as, for example, a slider device or the like.
  • a lift 420 is disposed in the space between the beams 406 , 602, 408 and 410.
  • the elevator 420 is intended to allow the technician 412 to pass easily, quickly and safely from the inside of the trench to the control station 414 and vice versa.
  • the Fig. 8 represents a drawing device 620 intended to be positioned either on the work machine 400 or on one of the shoring panels 100.
  • the pulling device 620 is intended to pull on the pipes of the pipe to fit them together in each other.
  • the pulling device 620 comprises fastening means 1102 and pulling means.
  • the fixing means take the form of a fixing bar 1102 which is fixed on the work machine 400 or on one of the shoring panels 100 and, in particular, on one of the lateral wings 104, 106.
  • the pulling means comprise a column 1104, a traction cylinder 1106, a draw bar 1108, a draw cable 1110, a deflection pulley 1112 and a grapple (not shown) provided for hooking onto the end of a pipe constituting the pipe.
  • the fixing bar 1102 is secured to collars which enclose the column 1104.
  • the column 1104 is movable in translation inside these collars to raise the pulling device 620 when the work machine 400 is not in position. working position and lower the pulling device 620 when the work machine 400 is in the working position.
  • the pulling device 620 is free to pivot about a substantially vertical axis to allow to direct the direction of pull according to the length of the pipe on which it is intended to pull.
  • the pulling direction is substantially horizontal and in the median plane of the deflection pulley 1112.
  • the traction cylinder 1106, the draw bar 1108 and the pull cable 1110 are arranged inside the column 1104 and the deflection pulley 1112 is arranged in the lower part of the column 1104.
  • a first connecting device 1118 to which is fixed one end of the draw bar 1108.
  • a second connecting device 1120 to which is fixed the end of the pull cable 1110 which is not provided with the grapple.
  • the deflection pulley 1112 is mounted free to rotate about an axis of rotation 1116 which is substantially horizontal.
  • the deflection pulley makes it possible to change the orientation of the pull cable 1110 which passes from a vertical orientation to a horizontal orientation.
  • the operating mode of the pulling device 620 is as follows.
  • the first pipe 670a includes a first end and a second end.
  • the second pipe 670b comprises a first end which must be fitted into the second end of the first pipe 670a and a second end into which the first end of a third pipe must be fitted.
  • the grapple When the second pipe 670b is to be fitted into the first pipe 670a, the grapple is attached to the second end of the second pipe 670b, then the draw cylinder 1106 pulls, in the direction of the arrow 1122, on the draw bar 1108 and the pull cable 1110, which causes the pulling of the grapple and thus the fitting of the second pipe 670b in the first pipe 670a. After which the traction cylinder 1106 is released, in the direction of the arrow 1124, which lowers the draw bar 1108 and the pull cable 1110 and releases the grapple.
  • the draw device 620 When the draw device 620 is rotatable about a vertical axis, it can be pivoted to orient the center plane of the deflection pulley 1112 to the second end of the second pipe 670b.
  • the shoring panel 100 has been more particularly described in the context of the central module 102 and two lateral wings 104 and 106, but the number of lateral wings is at least one.
  • the through-hatches 112 and 114 have been described as being able to pivot, but it is also possible to provide for the retraction to take place by vertical, horizontal or other sliding of each through-hatch parallel to the central module 102.
  • the transportation, positioning and the holding in position of the shoring panels 100 are particularly advantageous using the work machine 400 described above, it is possible to position and maintain two shoring panels. 100 in the same way as two shoring panels of the state of the art. In particular, it is possible to position one or more cylinders horizontally between the two central modules 102 facing each other in the trench while leaving free the possibility of rotation of the lateral wings 104 and 106.
  • control station 114 and the elevator 420 have been described as being arranged at the rear of the work machine 400, but they can be arranged at the front of the machine 400.
  • the invention has been more particularly described in the case where the technician 412 controls the work machine 400 from the control station 114, but it is possible that some commands are also remote on a remote box, so as to be accessible from the bottom of the trench.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Body Structure For Vehicles (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)

Abstract

The panel (100) has lateral wings (104, 106) rotatably mounted on both sides of a central module (102) around a rotational axis that is vertical, when the panel is in utilization position. Each wing has a rotation blocking device constituting a motor element for rotating the wing. Hatches (112, 114) are rotatably mounted around the rotational axis, and respectively have blocking devices to maintain the corresponding hatches in position against a trench, when the hatches are not retracted. An independent claim is also included for a work vehicle comprising a support panel.

Description

La présente invention concerne un panneau d'étaiement, ainsi qu'un engin de travaux comportant un tel panneau d'étaiement.The present invention relates to a shoring panel, and a construction machine comprising such a shoring panel.

Lorsqu'une tranchée doit être creusée dans le sol, par exemple pour y déposer des canalisations d'eau, chaque paroi verticale de la tranchée doit être sécurisée pour éviter que les ouvriers qui sont dans la tranchée ne soient ensevelis sous un éboulement de l'une de ces parois. A cette fin, un panneau d'étaiement, généralement constitué d'une plaque d'acier, est disposé le long de chaque paroi et des entretoises sont disposées entre deux panneaux d'étaiement se faisant face afin de forcer ces derniers contre la paroi correspondante de la tranchée.When a trench is to be dug into the ground, for example to deposit water pipes, each vertical wall of the trench must be secured to prevent the workers in the trench from being buried under a landslide of the trench. one of these walls. To this end, a shoring panel, generally consisting of a steel plate, is arranged along each wall and spacers are arranged between two shoring panels facing each other in order to force them against the corresponding wall. of the trench.

Une canalisation se compose, généralement, de tuyaux d'un diamètre défini qui s'emmanchent les uns dans les autres et de regards de visite dont les dimensions sont supérieures à ce diamètre et qui se positionnent environ tous les 50 mètres sur les tuyaux. La tranchée qui doit être creusée pour une telle canalisation comporte, ainsi, une première section adaptée au diamètre des tuyaux et une deuxième section plus grande que la première et adaptée aux dimensions des regards de visite. Il est, alors, nécessaire de modifier la distance entre deux panneaux d'étaiement se faisant face en fonction de la section où ils se trouvent.A pipeline generally consists of pipes of a defined diameter that fit into each other and manholes whose dimensions are greater than this diameter and which are positioned approximately every 50 meters on the pipes. The trench to be dug for such a pipe thus comprises a first section adapted to the pipe diameter and a second section larger than the first and adapted to the dimensions of manholes. It is then necessary to change the distance between two shoring panels facing each other depending on the section where they are located.

Les panneaux d'étalement utilisés dans la première section sont également généralement plus longs que ceux utilisés dans la deuxième section et, dans ce cas, il est nécessaire d'avoir deux jeux de panneaux différents ce qui augmente les coûts d'outillage.The spreading panels used in the first section are also generally longer than those used in the second section and, in this case, it is necessary to have two different sets of panels which increases the tooling costs.

Les panneaux d'étaiement doivent suivre la progression des ouvriers dans la pose de la canalisation. Ainsi, une pelleteuse creuse la tranchée puis elle tire les panneaux d'étaiement le long de la tranchée ainsi creusée. Les ouvriers peuvent alors travailler en toute sécurité tandis que la pelleteuse continue de creuser la tranchée. Lorsque la pose des tuyaux ou du regard de visite est terminée, la pelleteuse cesse de creuser pour venir déplacer les panneaux d'étaiement et, lorsque la tranchée est entièrement creusée, la pelleteuse doit rester disponible afin de tirer sur les panneaux d'étaiement. Ce procédé de dépose de la canalisation monopolise donc en permanence la pelleteuse, qui doit toujours rester disponible pour tirer sur les panneaux d'étaiement. Une telle monopolisation est coûteuse car la pelleteuse et son conducteur restent inutilisés la plupart du temps.The shoring panels must follow the progress of the workers in laying the pipe. Thus, a digger digs the trench and then pulls the shoring panels along the trench thus dug. The workers can then work safely while the digger continues digging the trench. When the installation of the pipes or manhole is complete, the excavator stops digging to move the shoring panels and, when the trench is fully dug, the shovel must remain available to fire the shoring panels. This method of removal of the pipeline therefore permanently monopolizes the excavator, which must always remain available to shoot the shoring panels. Such monopolization is expensive because the excavator and its driver remain unused most of the time.

Le document FR-A-2 799 774 divulgue un panneau d'étaiement rigide comprenant un module central et une aile latérale.The document FR-A-2,799,774 discloses a rigid shoring panel comprising a central module and a side wing.

Un objet de la présente invention est de proposer un panneau d'étaiement ainsi qu'un engin de travaux comportant un tel panneau d'étaiement qui ne présentent pas les inconvénients de l'art antérieur et qui en particulier, permettent une meilleure utilisation du matériel et du personnel en limitant la nombre de panneaux d'étaiement et le nombre d'ouvriers nécessaires.An object of the present invention is to provide a shoring panel and a construction machine comprising such a shoring panel which do not have the drawbacks of the prior art and which in particular allow a better use of the equipment. and staff by limiting the number of shoring boards and the number of workers needed.

A cet effet, est proposé un panneau d'étaiement comprenant:

  • un module central; et
  • au moins une aile latérale;
  • la ou chaque aile latérale étant montée mobile en rotation par rapport au module central autour d'un axe de rotation qui est sensiblement vertical lorsque le panneau d'étaiement est en position d'utilisation.
For this purpose, is proposed a shoring panel comprising:
  • a central module; and
  • at least one side wing;
  • the or each lateral wing being rotatably mounted relative to the central module about an axis of rotation which is substantially vertical when the shoring panel is in the use position.

Selon un mode de réalisation particulier, le panneau d'étaiement comprend une première aile latérale et une deuxième aile latérale disposées de part et d'autre du module central.According to a particular embodiment, the shoring panel comprises a first lateral wing and a second lateral wing disposed on either side of the central module.

Avantageusement, la ou chaque aile latérale est munie d'un dispositif de blocage en rotation.Advantageously, the or each lateral wing is provided with a locking device in rotation.

Avantageusement, le ou chaque dispositif de blocage en rotation constitue un élément moteur prévu pour mettre en rotation l'aile latérale considérée.Advantageously, the or each rotational locking device constitutes a motor element designed to rotate the side wing considered.

Selon un mode de réalisation particulier, le panneau d'étaiement est muni d'au moins une trappe de passage.According to a particular embodiment, the shoring panel is provided with at least one passage hatch.

Avantageusement, la ou chaque trappe de passage est montée libre en rotation autour d'un axe de rotation qui est sensiblement vertical lorsque le panneau d'étaiement est en position d'utilisation.Advantageously, the or each passage hatch is mounted free to rotate about an axis of rotation which is substantially vertical when the shoring panel is in the use position.

Avantageusement, la ou chaque trappe de passage est munie d'un dispositif de blocage.Advantageously, the or each passage door is provided with a locking device.

L'invention propose également un engin de travaux comprenant:

  • un châssis porté par des moyens de déplacement;
  • deux panneaux d'étaiement selon une des variantes précédentes et se faisant face; et
  • pour chaque panneau d'étaiement, un moyen de déplacement prévu sur ledit châssis et adapté pour déplacer verticalement le panneau d'étaiement considéré;
l'engin de travaux étant tel que le châssis comprend des moyens de réglage prévus pour élargir et rétrécir ledit châssis afin de régler l'espacement entre les deux panneaux d'étaiement.The invention also proposes a construction machine comprising:
  • a chassis carried by moving means;
  • two shoring panels according to one of the preceding variants and facing each other; and
  • for each shoring panel, a displacement means provided on said frame and adapted to vertically move the shoring panel considered;
the work machine being such that the chassis comprises adjustment means provided for widening and shrinking said frame to adjust the spacing between the two shoring panels.

Selon un mode de réalisation particulier, l'engin de travaux comprend des dispositifs de soulèvement prévus pour soulever lesdits moyens de déplacement, en particulier lors de l'élargissement et du rétrécissement dudit châssis.According to a particular embodiment, the work machine comprises lifting devices provided for lifting said moving means, in particular during the widening and narrowing of said frame.

Selon un mode de réalisation particulier, lesdits moyens de réglage comprennent une poutre transversale avant télescopique constituée d'une poutre mâle avant et d'une poutre femelle avant mobile à l'intérieur de ladite poutre mâle avant, et une poutre transversale arrière télescopique constituée d'une poutre mâle arrière et d'une poutre femelle arrière mobile à l'intérieur de ladite poutre mâle arrière.According to a particular embodiment, said adjustment means comprise a telescopic front transverse beam consisting of a front male beam and a movable front female beam inside said front male beam, and a telescopic rear transverse beam consisting of a rear male beam and a movable rear female beam inside said rear male beam.

Selon un mode de réalisation particulier, le châssis comprend également:

  • une première poutre longitudinale;
  • une deuxième poutre longitudinale parallèle à ladite première poutre longitudinale;
  • la poutre transversale avant reliant une extrémité de la première poutre longitudinale à une extrémité de la deuxième poutre longitudinale; et
  • la poutre transversale arrière parallèle à ladite poutre transversale avant et reliant l'autre extrémité de la première poutre longitudinale à l'autre extrémité de la deuxième poutre longitudinale.
According to a particular embodiment, the chassis also comprises:
  • a first longitudinal beam;
  • a second longitudinal beam parallel to said first longitudinal beam;
  • the transverse front beam connecting one end of the first longitudinal beam to one end of the second longitudinal beam; and
  • the rear transverse beam parallel to said front transverse beam and connecting the other end of the first longitudinal beam to the other end of the second longitudinal beam.

Avantageusement, les deux panneaux d'étaiement sont disposés à l'intérieur de l'espace limité par la première poutre longitudinale, la deuxième poutre longitudinale, la poutre transversale avant et la poutre transversale arrière.Advantageously, the two shoring panels are disposed within the space limited by the first longitudinal beam, the second longitudinal beam, the front transverse beam and the rear transverse beam.

Avantageusement, l'un des panneaux d'étaiement est monté mobile sur ladite première poutre longitudinale et l'autre panneau d'étaiement est monté mobile sur ladite deuxième poutre longitudinale.Advantageously, one of the shoring panels is movably mounted on said first longitudinal beam and the other shoring panel is movably mounted on said second longitudinal beam.

Avantageusement, l'engin de travaux comprend, pour chaque panneau d'étaiement, au moins un dispositif de guidage prévu pour coopérer avec ledit panneau d'étaiement lors de son déplacement vertical.Advantageously, the construction machine comprises, for each shoring panel, at least one guiding device provided to cooperate with said shoring panel during its vertical movement.

Selon un mode de réalisation particulier, chaque dispositif de guidage comprend au moins un rouleau de glissement solidaire du châssis et chaque panneau d'étaiement comprend au moins un rail de guidage dans lequel vient rouler l'un des rouleaux de glissement.According to a particular embodiment, each guiding device comprises at least one sliding roller secured to the frame and each shoring panel comprises at least one guide rail in which is rolled one of the sliding rollers.

Avantageusement, l'engin de travaux comprend au moins un dispositif de tirage prévu pour tirer sur des tuyaux d'une canalisation à emmancher.Advantageously, the work machine comprises at least one pulling device provided for pulling on pipes of a pipe to be fitted.

Selon un mode de réalisation particulier, le dispositif de tirage comprend des moyens de fixation prévus pour fixer ledit dispositif de tirage sur le châssis ou sur le panneau d'étaiement.According to a particular embodiment, the pulling device comprises fastening means provided for fixing said pulling device on the frame or on the shoring panel.

Avantageusement, l'engin de travaux comprend deux dispositifs de tirage disposés de part et d'autre des tuyaux à emmancher.Advantageously, the work machine comprises two pulling devices arranged on either side of the pipes to be fitted.

Les caractéristiques de l'invention mentionnées ci-dessus, ainsi que d'autres, apparaîtront plus clairement à la lecture de la description suivante d'un exemple de réalisation, ladite description étant faite en relation avec les dessins joints, parmi lesquels:

  • la Fig. 1 représente une vue de face d'un panneau d'étaiement selon l'invention;
  • la Fig. 2 représente une vue de dos d'un panneau d'étaiement selon l'invention;
  • la Fig. 3 représente un agrandissement du détail III de la Fig. 2;
  • la Fig. 4 représente une vue de côté d'un engin de travaux selon l'invention;
  • la Fig. 5 représente une coupe, selon la ligne V-V de la Fig. 4, de l'engin de travaux selon l'invention;
  • la Fig. 6 représente une vue de dessus de l'engin de travaux selon l'invention;
  • la Fig. 6a représente un agrandissement du détail VI de la Fig. 6;
  • la Fig. 7 représente une coupe, selon la ligne VII-VII de la Fig. 4, de l'engin de travaux selon l'invention; et
  • la Fig. 8 représente un dispositif de tirage de tuyau utilisé dans un engin de travaux selon l'invention.
The characteristics of the invention mentioned above, as well as others, will appear more clearly on reading the following description of an exemplary embodiment, said description being given in relation to the attached drawings, among which:
  • the Fig. 1 represents a front view of a shoring panel according to the invention;
  • the Fig. 2 represents a back view of a shoring panel according to the invention;
  • the Fig. 3 represents an enlargement of detail III of the Fig. 2 ;
  • the Fig. 4 represents a side view of a construction machine according to the invention;
  • the Fig. 5 represents a section, according to the line VV of the Fig. 4 , the construction machine according to the invention;
  • the Fig. 6 represents a top view of the construction machine according to the invention;
  • the Fig. 6a represents an enlargement of detail VI of the Fig. 6 ;
  • the Fig. 7 represents a section along line VII-VII of the Fig. 4 , the construction machine according to the invention; and
  • the Fig. 8 represents a pipe drawing device used in a construction machine according to the invention.

La Fig. 1 représente un panneau d'étaiement 100 qui comprend un module central 102, une première aile latérale 104 et une deuxième aile latérale 106.The Fig. 1 represents a shoring panel 100 which comprises a central module 102, a first lateral wing 104 and a second lateral wing 106.

Pour assurer l'étaiement d'une tranchée, deux panneaux d'étaiement 100 sont disposés contre les parois opposées de la tranchée et sont maintenus en position par un dispositif qui est décrit ci-après.To provide shoring of a trench, two shoring panels 100 are disposed against the opposite walls of the trench and are held in position by a device which is described hereinafter.

La face du module central 102 qui est vue sur la Fig. 1 vient se placer contre une paroi de la tranchée de manière à soutenir ladite paroi et à protéger les ouvriers travaillant dans la tranchée. A cet effet, sur la hauteur de la tranchée, le panneau d'étaiement 100 est plein.The face of the central module 102 which is seen on the Fig. 1 is placed against a wall of the trench so as to support the wall and protect the workers working in the trench. For this purpose, on the height of the trench, the shoring panel 100 is full.

Les ailes latérales 104 et 106 sont disposées de part et d'autre du module central 102 et viennent en appui contre la paroi et, comme pour le module central 102, la première aile latérale 104 et la deuxième aile latérale 106 sont pleines sur la hauteur de la tranchée.The lateral wings 104 and 106 are disposed on either side of the central module 102 and abut against the wall and, as for the central module 102, the first lateral wing 104 and the second lateral wing 106 are full on the height of the trench.

Le module central 102 et les ailes latérales 104 et 106 sont dans le prolongement les uns des autres et forment un panneau d'étaiement 100 dont les dimensions sont équivalentes aux dimensions des panneaux d'étaiement de l'état de la technique utilisés pour étayer la tranchée où sont placés les tuyaux.The central module 102 and the lateral wings 104 and 106 are in the extension of each other and form a shoring panel 100 whose dimensions are equivalent to the dimensions of the shoring panels of the state of the art used to support the trench where the pipes are placed.

Selon un mode de réalisation particulier, le module centrale 102 a une longueur de 2 mètres et chaque aile latérale 104, 106 a une longueur de 1 mètre, l'ensemble formant ainsi un panneau d'étaiement 100 d'environ 4 mètres.According to a particular embodiment, the central module 102 has a length of 2 meters and each lateral wing 104, 106 has a length of 1 meter, the assembly thus forming a shoring panel 100 of about 4 meters.

Comme cela a été explicité dans la description de l'état de la technique, la tranchée prévue pour la dépose d'une canalisation avec des regards de visite comporte une première section adaptée au diamètre des tuyaux et une deuxième section plus large que la première et adaptée aux dimensions des regards de visite. La première portion de la tranchée prévue pour recevoir les tuyaux est plus longue que la deuxième portion de la tranchée prévue pour recevoir les regards de visite et la longueur du panneau d'étaiement 100 doit donc être plus importante dans le cas où celui-ci est disposé dans la première portion que dans le cas où il est déposé dans la deuxième portion. En d'autres termes, la longueur du panneau d'étaiement 100 doit pouvoir être modulée entre une première longueur adaptée à la première portion de la tranchée et une deuxième longueur plus courte que la première et adaptée à la deuxième portion de la tranchée. La tranchée est ainsi constituée d'une succession d'une première portion et d'une deuxième portion.As has been explained in the description of the state of the art, the trench intended for the removal of a pipe with manholes has a first section adapted to the diameter of the pipes and a second section wider than the first and adapted to the dimensions of manholes. The first portion of the trench intended to receive the pipes is longer than the second portion of the trench intended to receive the manholes and the length of the shoring panel 100 must therefore be greater in the case where it is disposed in the first portion only in the case where it is deposited in the second portion. In other words, the length of the shoring panel 100 must be able to be modulated between a first length adapted to the first portion of the trench and a second length shorter than the first and adapted to the second portion. of the trench. The trench thus consists of a succession of a first portion and a second portion.

Pour permettre cette modulation, les ailes latérales 104 et 106 sont montées mobiles en rotation par rapport au module central 102 autour d'un axe de rotation qui est sensiblement vertical lorsque le panneau d'étaiement 100 est en position d'utilisation. Il est ainsi possible d'escamoter chaque aile latérale 104, 106 et ceci indépendamment l'une de l'autre. Chaque aile latérale 104, 106 est montée sur une charnière 108, 110 qui s'articule entre le module central 102 et l'aile latérale 104, 106 correspondante.To allow this modulation, the lateral wings 104 and 106 are rotatably mounted relative to the central module 102 about an axis of rotation which is substantially vertical when the shoring panel 100 is in the use position. It is thus possible to retract each lateral wing 104, 106 and this independently of one another. Each side wing 104, 106 is mounted on a hinge 108, 110 which is articulated between the central module 102 and the corresponding lateral wing 104, 106.

La mise en place du panneau d'étaiement 100 dans la deuxième portion s'effectue ainsi par rotation de chaque aile 104, 106, ou uniquement de l'une d'elles, vers l'intérieur de la tranchée. Pour que le panneau d'étaiement 100 joue pleinement son rôle de protection vis-à-vis des ouvriers après cette mise en place, chaque aile 104, 106 doit être bloquée en rotation. A cet effet, est prévu un dispositif de blocage en rotation qui est décrit ci-après.The establishment of the shoring panel 100 in the second portion is thus effected by rotation of each wing 104, 106, or only one of them, towards the inside of the trench. So that the shoring panel 100 fully plays its role of protection vis-à-vis the workers after this establishment, each wing 104, 106 must be locked in rotation. For this purpose, there is provided a rotational locking device which is described below.

A chaque passage de la première portion vers la deuxième portion, un élargissement de la tranchée est créé. De la même manière, à chaque passage de la deuxième portion vers la première portion, un rétrécissement de la tranchée est créé. Chaque élargissement et chaque rétrécissement peuvent prendre la forme d'une marche ou d'un plan incliné. La conception particulière du panneau d'étaiement 100 de l'invention et, en particulier la présence des ailes latérales 104 et 106, permet d'étayer chaque élargissement et chaque rétrécissement. En effet, lorsque le panneau d'étaiement 100 est disposé au niveau d'une deuxième portion de la tranchée, chaque aile latérale 104, 106 vient s'appuyer contre un rétrécissement ou un élargissement et, ainsi, la sécurité des ouvriers est améliorée.At each passage from the first portion to the second portion, an enlargement of the trench is created. In the same way, with each passage of the second portion to the first portion, a narrowing of the trench is created. Each enlargement and narrowing may take the form of a step or incline. The particular design of the shoring panel 100 of the invention and, in particular the presence of the lateral wings 104 and 106, makes it possible to support each enlargement and each narrowing. Indeed, when the shoring panel 100 is disposed at a second portion of the trench, each side wing 104, 106 abuts against a constriction or expansion and thus the safety of workers is improved.

La Fig. 2 représente le panneau d'étaiement 100 vu de derrière, c'est-à-dire vu de l'intérieur de la tranchée.The Fig. 2 represents the shoring panel 100 seen from behind, that is to say seen from inside the trench.

Le dispositif de blocage en rotation est ici constitué, pour chaque aile latérale 104, 106, d'un vérin de blocage 202, 204, par exemple un vérin hydraulique. Chaque vérin de blocage 202, 204 est lié à l'aile latérale 104, 106 correspondante d'une part, et, au module central 102, d'autre part. Les ouvriers peuvent commander indépendamment chaque vérin de blocage 202, 204 et chaque vérin de blocage 202, 204 est prévu pour bloquer l'aile latérale 104, 106 considérée dans la position désirée mais également pour faire pivoter l'aile latérale 104, 106 considérée jusqu'à la position désirée. Ainsi, chaque dispositif de blocage en rotation 202, 204 constitue également un élément moteur prévu pour mettre en rotation l'aile latérale 104, 106 considérée.The rotational locking device here consists, for each side wing 104, 106, of a locking cylinder 202, 204, for example a hydraulic cylinder. Each locking cylinder 202, 204 is connected to the corresponding lateral wing 104, 106 on the one hand, and to the central module 102, on the other hand. The workers can independently control each locking cylinder 202, 204 and each locking cylinder 202, 204 is provided to lock the lateral wing 104, 106 considered in the desired position but also to rotate the side wing 104, 106 considered until 'to the position desired. Thus, each rotational locking device 202, 204 also constitutes a motor element designed to rotate the side wing 104, 106 considered.

Le réseaux souterrain de canalisations des villes est souvent très dense et il arrive souvent que lors du creusement d'une tranchée, des canalisations d'eau ou de réseaux câblés traversent la tranchée. La mise en place des panneaux d'étaiement de l'état de la technique est alors impossible au niveau de ces canalisations traversantes et la protection des ouvriers n'est pas assurée de manière satisfaisante.The underground network of city canals is often very dense and it often happens that when digging a trench, water pipes or cable networks cross the trench. The establishment of the shoring panels of the state of the art is then impossible at these through pipes and the protection of workers is not ensured satisfactorily.

Pour remédier à ce problème, le panneau central 102 est muni d'au moins une trappe de passage 112, 114 qui peut s'escamoter afin de laisser passer les canalisations traversantes. Bien que ces trappes de passage 112 et 114 soient décrites dans le cadre du panneau d'étaiement 100 de l'invention, elles peuvent également être mises en place sur un panneau d'étaiement de l'état de la technique.To remedy this problem, the central panel 102 is provided with at least one passage door 112, 114 which can be retracted in order to let through the pipes. Although these passage doors 112 and 114 are described in the context of the shoring panel 100 of the invention, they can also be implemented on a shoring panel of the state of the art.

Afin d'assurer leur escamotage, chaque trappe de passage 112, 114 est montée libre en rotation autour d'un axe de rotation qui est sensiblement vertical lorsque le panneau d'étaiement 100 est en position d'utilisation. Chaque trappe de passage 112, 114 est montée sur une charnière 116 qui s'articule entre le module central 102 et la trappe de passage 112, 114 correspondante. Il est ainsi possible d'escamoter chaque trappe de passage 112, 114 indépendamment l'une de l'autre.To ensure their retraction, each flap 112, 114 is mounted free to rotate about an axis of rotation which is substantially vertical when the shoring panel 100 is in the use position. Each flap 112, 114 is mounted on a hinge 116 which is articulated between the central module 102 and the corresponding flap 112, 114. It is thus possible to retract each passage door 112, 114 independently of one another.

Dans le mode de réalisation de l'invention représenté à la Fig. 1 et à la Fig. 2, le panneau d'étalement 100 est muni de deux groupes de trois trappes de passage 112 et 114 qui s'étendent sur environ la moitié de la hauteur du module central 102.In the embodiment of the invention shown in Fig. 1 and at the Fig. 2 , the spreading panel 100 is provided with two groups of three through-hatches 112 and 114 which extend over approximately half the height of the central module 102.

En fonction de l'encombrement des canalisations traversantes, le nombre et la position des trappes de passage 112 et 114 devant être escamotées peuvent être facilement modulés. Cette possibilité de modulation évite qu'une surface trop importante de la paroi de la tranchée ne soit étayée lorsque l'escamotage d'une seule trappe de passage 112, 114 est suffisant pour laisser passer les canalisations traversantes.Depending on the size of the through pipes, the number and position of the passage doors 112 and 114 to be retracted can be easily modulated. This possibility of modulation prevents a too large surface of the wall of the trench is supported when the retraction of a single passage hatch 112, 114 is sufficient to allow through pipes.

Chaque trappe de passage 112, 114 est pourvue d'un dispositif de blocage 206 qui maintient la trappe de passage considérée 112, 114 en position contre la paroi de la tranchée, lorsqu'elle n'est pas escamotée.Each flap 112, 114 is provided with a locking device 206 which maintains the passage door 112, 114 considered in position against the wall of the trench, when it is not retracted.

La Fig. 3 représente un agrandissement du dispositif de blocage 206. Dans le mode de réalisation représenté à la Fig. 3, le module central 102 est muni d'un premier bras de solidarisation 308 et la trappe de passage 112 est munie d'un deuxième bras de solidarisation 310. Entre le premier bras de solidarisation 308 et le deuxième bras de solidarisation 310 s'étend un bras d'articulation 302. Le bras d'articulation 302 est monté mobile en rotation par rapport au deuxième bras de solidarisation 310 grâce à la mise en place d'un plot d'articulation 304. Le bras d'articulation 302 est assemblé au premier bras de solidarisation 308 grâce à la mise en place d'une goupille 306 qui peut se retirer, libérant ainsi le bras d'articulation 302 du premier bras de solidarisation 308. Ainsi libéré, le bras d'articulation 302 peut être tiré vers l'intérieur de la tranchée, en entraînant également la trappe de passage 112 vers l'intérieur de la tranchée.The Fig. 3 represents an enlargement of the blocking device 206. In the embodiment shown in FIG. Fig. 3 , the central module 102 is provided with a first securing arm 308 and the flap 112 is provided with a second securing arm 310. Between the first securing arm 308 and the second securing arm fastening 310 extends a hinge arm 302. The hinge arm 302 is rotatably mounted relative to the second securing arm 310 by the introduction of a hinge pin 304. The hinge arm 302 articulation 302 is assembled to the first securing arm 308 by virtue of the introduction of a pin 306 which can be withdrawn, thus releasing the hinge arm 302 from the first securing arm 308. Thus released, the hinge arm 302 can be pulled inward of the trench, also driving the flap 112 into the trench.

La mise en place de trappes de passage 112, 114 n'est pas limitée au module central 102, mais une ou plusieurs trappes de passage 112, 114 peuvent également être prévues dans les ailes latérales 104, 106.The establishment of passage hatches 112, 114 is not limited to the central module 102, but one or more passage doors 112, 114 may also be provided in the side wings 104, 106.

Dans le mode de réalisation de l'invention représenté aux Fig. 1 et 2, le panneau d'étaiement 100 comprend une structure portante rigide comprenant un premier rail de guidage 122, un deuxième rail de guidage 124, un premier moyen de renfort 126 et un deuxième moyen de renfort 128. Chaque rail de guidage 122, 124 dont la fonction est décrite ci-après s'étend verticalement tandis que chaque moyen de renfort 126, 128 s'étend horizontalement entre le premier rail de guidage 122 et le deuxième rail de guidage 124 afin de rigidifier la structure portante.In the embodiment of the invention shown in Fig. 1 and 2 , the shoring panel 100 comprises a rigid supporting structure comprising a first guide rail 122, a second guide rail 124, a first reinforcement means 126 and a second reinforcement means 128. Each guide rail 122, 124 whose The function described below extends vertically while each reinforcing means 126, 128 extends horizontally between the first guide rail 122 and the second guide rail 124 to stiffen the supporting structure.

En partie haute du panneau d'étaiement 100, qui est ici constituée par le premier moyen de renfort 126, est prévu un moyen de solidarisation 120 dont la fonction est décrite ci-après.In the upper part of the shoring panel 100, which here consists of the first reinforcing means 126, there is provided a securing means 120 whose function is described below.

La Fig. 4 représente une vue de côté d'un engin de travaux 400 prévu pour transporter, positionner et maintenir en position deux panneaux d'étaiement 100 dans la tranchée. La Fig. 5 représente une vue en coupe selon la ligne V-V de la Fig. 4 et la Fig. 6 représente une vue de dessus de l'engin de travaux 400 de la Fig. 4.The Fig. 4 represents a side view of a work machine 400 intended to transport, position and maintain in position two shoring panels 100 in the trench. The Fig. 5 represents a sectional view along the line VV of the Fig. 4 and the Fig. 6 represents a top view of the construction machine 400 of the Fig. 4 .

L'engin de travaux 400 est disposé sur 1c sol 450 et peut se déplacer sur ce dernier grâce à des moyens de déplacement qui sont, dans le mode de réalisation décrit, constitués de chenilles 404 qui sont disposées de part et d'autre de l'engin de travaux 400. L'engin de travaux 400 peut ainsi se déplacer le long de la tranchée. Selon la nature du terrain, les moyens de déplacement peuvent prendre d'autres formes, comme par exemple des roues des skis, ou autres.The work machine 400 is disposed on the ground 450 and can move on the latter by means of displacement which are, in the embodiment described, consist of tracks 404 which are arranged on either side of the 400 The work machine 400 can thus move along the trench. Depending on the nature of the terrain, the means of displacement may take other forms, such as ski wheels, or others.

L'engin de travaux 400 comprend:

  • un châssis 430 porté par les moyens de déplacement 404;
  • deux panneaux d'étaiement 100 se faisant face; et
  • pour chaque panneau d'étalement 100, un moyen de déplacement 402 prévu sur ledit châssis 430 et adapté pour déplacer verticalement le panneau d'étaiement 100 considéré.
The construction machine 400 includes:
  • a chassis 430 carried by the displacement means 404;
  • two shoring panels 100 facing each other; and
  • for each spreading panel 100, a displacement means 402 provided on said frame 430 and adapted to vertically move the shoring panel 100 considered.

Pour adapter la position de chaque panneau d'étaiement en fonction de la largeur de la tranchée à étayer, le châssis 430 comprend des moyens de réglage 408 et 410 prévus pour élargir et rétrécir le châssis 430 afin de régler l'espacement entre les deux panneaux d'étaiement 100.To adapt the position of each shoring panel according to the width of the trench to be supported, the frame 430 comprises adjustment means 408 and 410 provided for widening and shrinking the frame 430 to adjust the spacing between the two panels. Shoring 100.

Le châssis 430 comprend une première poutre longitudinale 406 reposant sur l'une des chenilles 404 (Fig. 5), une deuxième poutre longitudinale 602 (Fig. 6) reposant sur l'autre chenille 404 (Fig. 5) et parallèle à ladite première poutre longitudinale 406, une poutre transversale avant 408 et une poutre transversale arrière 410. La poutre transversale avant 408 relie une extrémité de la première poutre longitudinale 406 à une extrémité de la deuxième poutre longitudinale 602, et la poutre transversale arrière 410 qui est parallèle à la poutre transversale avant 408 relie l'autre extrémité de la première poutre longitudinale 406 à l'autre extrémité de la deuxième poutre longitudinale 602.The chassis 430 comprises a first longitudinal beam 406 resting on one of the tracks 404 ( Fig. 5 ), a second longitudinal beam 602 ( Fig. 6 ) resting on the other caterpillar 404 ( Fig. 5 ) and parallel to said first longitudinal beam 406, a front transverse beam 408 and a rear transverse beam 410. The front transverse beam 408 connects one end of the first longitudinal beam 406 to one end of the second longitudinal beam 602, and the transverse beam. rear 410 which is parallel to the front transverse beam 408 connects the other end of the first longitudinal beam 406 to the other end of the second longitudinal beam 602.

Ces quatre poutres 406, 602, 408 et 410 sont solidarisées de manière à former le châssis 430. Chaque poutre longitudinale 406, 602 s'étend de l'avant à l'arrière de l'engin de travaux 400 et chaque poutre transversale 408, 410 s'étend du côté gauche au côté droit de l'engin de travaux 400. Le châssis 430 a ainsi une forme sensiblement rectangulaire creuse, c'est-à-dire, comme cela est mieux vu sur la Fig. 6, que l'espace qui se situe entre les poutres 406, 602, 408 et 410 est vide et cela permet la mise en place de deux panneaux d'étaiement 100 à l'intérieur de cet espace. A l'intérieur de cet espace sont disposés, successivement, les tuyaux 670a et 670b constituant la canalisation.These four beams 406, 602, 408 and 410 are secured to form the frame 430. Each longitudinal beam 406, 602 extends from the front to the rear of the work machine 400 and each transverse beam 408, 410 extends from the left side to the right side of the work machine 400. The frame 430 thus has a substantially rectangular hollow shape, that is to say, as is better seen on the Fig. 6 , that the space between the beams 406, 602, 408 and 410 is empty and this allows the establishment of two shoring panels 100 within this space. Inside this space are arranged, successively, the pipes 670a and 670b constituting the pipe.

L'un des panneaux d'étalement 100 est monté mobile sur la première poutre longitudinale 406 et l'autre panneau d'étaiement 100 est monté mobile sur la deuxième poutre longitudinale 602.One of the spreading panels 100 is movably mounted on the first longitudinal beam 406 and the other shoring panel 100 is movably mounted on the second longitudinal beam 602.

A l'arrière de l'engin de travaux 400 est disposé un poste de commande 414 au niveau duquel vient se placer un technicien 412 pour commander l'engin de travaux 400. Afin d'empêcher la chute du technicien 412, le poste de commande 414 est limité par un garde-corps 416 qui s'étend transversalement par rapport à l'engin de travaux 400. Depuis le poste de commande 414, le technicien 412 peut commander les mouvements des différents éléments comme par exemple ceux de chaque vérin de blocage 202, 204.At the rear of the machine 400 is arranged a control station 414 at which a technician 412 is placed to control the machine 400. In order to prevent the fall of the technician 412, the control station 414 is limited by a guard rail 416 which extends transversely with respect to the work machine 400. From the control station 414, the technician 412 can control the movements of the various elements such as those of each locking cylinder 202, 204.

Dans le mode de réalisation de l'invention décrit ici, le moyen de déplacement 402 prend la forme d'un mât télescopique 402 qui coopère avec le panneau d'étaiement 100 correspondant par l'intermédiaire du moyen de solidarisation 120.In the embodiment of the invention described here, the displacement means 402 takes the form of a telescopic mast 402 which cooperates with the corresponding shoring panel 100 via the securing means 120.

Le fonctionnement de l'engin de travaux 400 est alors le suivant. L'engin de travaux 400 est positionné au dessus du début de la tranchée, les panneaux d'étaiement 100 sont plaqués contre les parois de la tranchée et les ouvriers peuvent travailler sur le premier tuyau 670a en toute sécurité. Les panneaux d'étaiement 100 peuvent ensuite être déplacés par déplacement de l'engin de travaux 400 dans le sens de la flèche 680 et être positionnés au niveau de la portion suivante de la tranchée. Lorsque des canalisations traversantes traversent la tranchée, il est nécessaire de relever chaque panneau d'étaiement 100 préalablement à son déplacement et d'abaisser chaque panneau d'étaiement 100 postérieurement à ce déplacement. Les ouvriers peuvent, alors, travailler sur le deuxième tuyau 670b en toute sécurité et, en particulier, ils peuvent tirer sur le deuxième tuyau 670b à l'aide de dispositifs de tirage 620 qui sont décrits ci-après, ceci afin de faciliter l'emboîtement des tuyaux 670a et 670b.The operation of the work machine 400 is then as follows. The work machine 400 is positioned above the beginning of the trench, the shoring panels 100 are pressed against the walls of the trench and the workers can work on the first pipe 670a safely. The shoring panels 100 can then be moved by moving the work machine 400 in the direction of the arrow 680 and be positioned at the next portion of the trench. When through pipes through the trench, it is necessary to raise each shoring panel 100 prior to its movement and lower each shoring panel 100 after this movement. The workers can then work on the second pipe 670b safely and, in particular, they can fire on the second pipe 670b with pulling devices 620 which are described hereinafter, in order to facilitate the interlocking of the 670a and 670b pipes.

L'utilisation d'un tel engin de travaux 400 permet de libérer la pelleteuse creusant la tranchée qui peut donc poursuivre le creusement sans se soucier de la progression de la mise en place de la canalisation et des panneaux d'étaiement 100. En outre, il n'est plus nécessaire d'utiliser la pelleteuse pour tirer sur les panneaux d'étaiement, ce qui permet de libérer la pelleteuse et son conducteur lorsque la tranchée est entièrement creusée.The use of such a work machine 400 frees the excavator digging the trench which can continue digging without worrying about the progress of the establishment of the pipe and shoring panels 100. In addition, it is no longer necessary to use the backhoe to pull the shoring panels, which frees the digger and its driver when the trench is fully dug.

Comme cela a été décrit ci-dessus, l'engin de travaux 400 comprend des moyens pour permettre la mise en place d'un panneau d'étaiement 100 contre chaque paroi de la tranchée et, ceci, quelle que soit la largeur de cette dernière. L'engin de travaux 400, et, en particulier, son châssis 430, sont prévus pour pouvoir s'élargir et se rétrécir transversalement. En d'autres termes, le rectangle formant le châssis 430 peut se déformer par allongement ou raccourcissement des poutres transversales avant 408 et arrière 410. Lesdits moyens de réglage permettant de régler l'espacement entre les deux panneaux d'étaiement 100 comprennent, alors, la poutre transversale avant 408 et la poutre transversale arrière 410. A cet effet, comme cela est mieux vu sur la Fig. 6 et sur la Fig. 7, la poutre transversale avant 408 est télescopique et constituée d'une poutre mâle avant 604 et d'une poutre femelle avant 606 mobile à l'intérieur de ladite poutre mâle avant 604, et la poutre transversale arrière 410 est télescopique et constituée d'une poutre mâle arrière 608 et d'une poutre femelle arrière 610 mobile à l'intérieur de ladite poutre mâle arrière 608.As described above, the construction machine 400 includes means for allowing the establishment of a shoring panel 100 against each wall of the trench and this, regardless of the width of the latter . The work machine 400, and in particular its frame 430, are provided to be able to expand and shrink transversely. In other words, the rectangle forming the frame 430 may be deformed by elongation or shortening of the front transverse beams 408 and rear 410. Said adjustment means for adjusting the spacing between the two shoring panels 100 comprise, then, the transverse beam before 408 and the rear transverse beam 410. For this purpose, as is better seen on the Fig. 6 and on the Fig. 7 , the transverse beam before 408 is telescopic and consists of a front male beam 604 and a front female beam 606 movable within said front male beam 604, and the rear transverse beam 410 is telescopic and consists of a rear male beam 608 and a rear female beam 610 movable within said rear male beam 608.

Un dispositif de déplacement, du type vérin hydraulique, est mis en place au niveau de chaque poutre transversale 408, 410. Chaque dispositif de déplacement est relié, d'un part, à la poutre mâle 604 (respectivement 608) et, d'autre part, à la poutre femelle 606 (respectivement 610) correspondante, pour permettre de réaliser le raccourcissement ou l'allongement des poutres transversales 408 et 410. Chaque dispositif de déplacement est commandé depuis le poste de commande 414.A displacement device, of the hydraulic cylinder type, is put in place at each transverse beam 408, 410. Each displacement device is connected, on the one hand, to the male beam 604 (respectively 608) and, on the other hand, on the other hand, to the corresponding female beam 606 (respectively 610), to make it possible to shorten or lengthen the transverse beams 408 and 410. Each displacement device is controlled from the control station 414.

Le garde-corps 416 comprend des moyens d'adaptation prévus pour adapter la longueur du garde-corps 416 à la déformation du châssis 430. Ces moyens d'adaptation peuvent, par exemple, prendre la forme de barrières qui peuvent s'allonger ou se raccourcir par coulissement les unes dans les autres.The railing 416 comprises adaptation means provided to adapt the length of the railing 416 to the deformation of the frame 430. These adaptation means can, for example, take the form of barriers that can be extended or to shorten by sliding in one another.

De la même manière, le plancher de poste de commande 414 comprend des moyens d'adaptation prévus pour adapter la longueur du plancher à la déformation du châssis 430. Ces moyens d'adaptation peuvent prendre la forme d'un pont 660 solidaire de la poutre mâle arrière 608 et glissant sur la poutre femelle arrière 610.In the same way, the control station floor 414 comprises adaptation means provided to adapt the length of the floor to the deformation of the frame 430. These adaptation means can take the form of a bridge 660 secured to the beam rear male 608 and sliding on the rear female beam 610.

Afin d'assurer la stabilité de l'engin de travaux 400 durant le maintien des panneaux d'étaiement 100 en position contre les parois de la tranchée, des dispositifs de stabilisation 500 sont prévus sur chaque poutre longitudinale 406, 602. Chaque dispositif de stabilisation 500 est manoeuvré par l'intermédiaire d'un dispositif de manoeuvre 422, 424 pouvant être commandé depuis le poste de commande 114. De manière classique, chaque dispositif de stabilisation 500 comprend un pied 506, une jambe 508 et le dispositif de manoeuvre 424. Le pied 506 est monté en partie inférieure de la jambe 508 qui est montée sur le dispositif de manoeuvre 424 qui comprend un ensemble de vérins 510. Afin de stabiliser l'engin de travaux 400, le dispositif de manoeuvre 424 déploie la jambe 508 de manière à venir poser le pied 506 sur le sol 450.In order to ensure the stability of the construction machine 400 during the maintenance of the shoring panels 100 in position against the walls of the trench, stabilization devices 500 are provided on each longitudinal beam 406, 602. Each stabilizing device 500 is operated by means of an operating device 422, 424 controllable from the control station 114. In a conventional manner, each stabilization device 500 comprises a foot 506, a leg 508 and the operating device 424. The foot 506 is mounted in the lower part of the leg 508 which is mounted on the operating device 424 which comprises a set of jacks 510. In order to stabilize the work machine 400, the operating device 424 deploys the leg 508 so that to come and put the foot 506 on the ground 450.

Dans le mode de réalisation de l'invention représenté sur les Figs. 4, 5 et 6, chaque poutre longitudinale 406, 602 est munie de deux dispositifs de stabilisation 500. Chaque dispositif de stabilisation 500 est prévu pour pouvoir prendre trois positions.In the embodiment of the invention shown in Figs. 4 , 5 and 6 each longitudinal beam 406, 602 is provided with two stabilizing devices 500. Each stabilizing device 500 is provided to take three positions.

La première position est une position de repos correspondant à celle représentée sur la Fig. 5 et dans laquelle chaque dispositif de stabilisation 500 est rentré.The first position is a rest position corresponding to that shown on the Fig. 5 and wherein each stabilizer 500 is retracted.

La deuxième position est une position de stabilisation dans laquelle chaque pied 506 vient en appui sur le sol 450 mais où les moyens de déplacement 404 restent en contact avec le sol 450.The second position is a stabilization position in which each foot 506 bears on the ground 450 but where the displacement means 404 remain in contact with the ground 450.

La troisième position correspond à une position d'extension dans laquelle chaque pied est en contact avec le sol 450 mais où la force exercée par l'ensemble de vérins 510 est telle que les moyens de déplacement 404 se soulèvent et ne sont plus en contact avec le sol 450. Cette position permet de dégager les moyens de déplacement 404 du sol 450 et facilite, ainsi, l'élargissement et le rétrécissement du châssis 430 puisque les moyens de déplacement 404 ne frottent plus sur le sol 450, évitant, en outre, une déstabilisation du sol 450 sous l'effet du frottement. Chaque dispositif de stabilisation 500 constitue, alors, un dispositif de soulèvement.The third position corresponds to an extension position in which each foot is in contact with the ground 450 but where the force exerted by the set of jacks 510 is such that the displacement means 404 are raised and are no longer in contact with the ground 450. This position makes it possible to disengage the displacement means 404 from the ground 450 and thus facilitates the widening and narrowing of the frame 430 since the displacement means 404 no longer rub on the ground 450, avoiding, moreover, a destabilization of the soil 450 under the effect of friction. Each stabilizing device 500 is then a lifting device.

De préférence, les moyens de déplacement 404 sont soulevés l'un après l'autre.Preferably, the displacement means 404 are raised one after the other.

Le guidage vertical de chaque panneau d'étaiement 100, lors de son déplacement vertical, est assuré par au moins un dispositif de guidage 502, 504 qui coopère avec ledit panneau d'étaiement 100. Dans le mode de réalisation de l'invention représenté sur la Fig. 5 et sur la Fig. 6, chaque panneau d'étaiement 100 est guidé par deux dispositifs de guidage inférieur 502 et deux dispositifs de guidage supérieur 504. La mise en place de deux dispositifs de guidage inférieur 502 et deux dispositifs de guidage supérieur 504 pour chaque panneau d'étaiement 100 permet d'assurer un meilleur guidage de celui-ci. Le mât télescopique 402 est disposé sensiblement au milieu entre les deux dispositifs de guidage supérieur 504 pour éviter que le panneau d'étaiement 100 se mette de travers lors de son déplacement vertical.Vertical guidance of each shoring panel 100, during its vertical movement, is provided by at least one guiding device 502, 504 which cooperates with said shoring panel 100. In the embodiment of the invention shown in FIG. the Fig. 5 and on the Fig. 6 , each shoring panel 100 is guided by two lower guiding devices 502 and two upper guiding devices 504. The introduction of two lower guiding devices 502 and two upper guiding devices 504 for each shoring panel 100 allows to ensure better guidance of it. The telescopic mast 402 is disposed substantially in the middle between the two upper guide devices 504 to prevent the shoring panel 100 skews during its vertical movement.

La Fig. 6a représente un agrandissement du détail VI de la Fig. 6 et elle représente un dispositif de guidage supérieur 504. Comme cela est expliqué ci-dessus, le panneau d'étalement 100 comprend, ici, un deuxième rail de guidage 124. Le deuxième rail de guidage 124 est constitué de deux rainures, chacune étant délimitée par une première nervure 656 et une deuxième nervure 658.The Fig. 6a represents an enlargement of detail VI of the Fig. 6 and it represents an upper guide device 504. As explained above, the spreading panel 100 here comprises a second guide rail 124. The second guide rail 124 consists of two grooves, each being delimited by a first rib 656 and a second rib 658.

La première poutre longitudinale 406 est munie de deux poutrelles et à l'extrémité de chacune de ces poutrelles est prévu un rouleau de glissement 652. Chaque rouleau dé glissement 652 est mobile en rotation autour d'un axe horizontal et parallèle aux nervures 656 et 658 et vient se positionner dans l'une des rainures, c'est-à-dire entre la première nervure 656 et la deuxième nervure 658. Les dimensions de chaque rouleau de glissement 652 et de chaque rainure sont telles que lors du déplacement vertical du panneau d'étaiement 100, chaque rouleau de glissement 652 roule sur l'une des nervures 656 ou 658, c'est-à-dire à l'intérieur du deuxième rail de guidage 124.The first longitudinal beam 406 is provided with two beams and at the end of each of these beams is provided a sliding roller 652. Each sliding roller 652 is rotatable about a horizontal axis and parallel to the ribs 656 and 658 and is positioned in one of the grooves, that is to say between the first rib 656 and the second rib 658. The dimensions of each sliding roller 652 and each groove are such that during the vertical movement of the panel shoring 100, each slip roller 652 rolls on one of the ribs 656 or 658, that is to say within the second guide rail 124.

Le dispositif de guidage de chaque panneau d'étaiement 100 peut prendre d'autres formes comme, par exemple, un dispositif à glissières ou autres.The guiding device of each shoring panel 100 may take other forms such as, for example, a slider device or the like.

Pour permettre au technicien 412 de se placer au fond de la tranchée pour y positionner une canalisation ou au poste de commande 414 pour y manoeuvrer l'engin de travaux 400, un élévateur 420 est disposé dans l'espace qui se situe entre les poutres 406, 602, 408 et 410.To allow the technician 412 to be placed at the bottom of the trench to position a pipe or at the control station 414 to maneuver the work machine 400, a lift 420 is disposed in the space between the beams 406 , 602, 408 and 410.

L'élévateur 420 est prévu pour permettre au technicien 412 de passer facilement, rapidement et en sécurité de l'intérieur de la tranchée au poste de commande 414 et inversement.The elevator 420 is intended to allow the technician 412 to pass easily, quickly and safely from the inside of the trench to the control station 414 and vice versa.

La Fig. 8 représente un dispositif de tirage 620 prévu pour se positionner soit sur l'engin de travaux 400, soit sur l'un des panneaux d'étaiement 100. Le dispositif de tirage 620 est destiné à tirer sur les tuyaux de la canalisation afin de les emboîter les uns dans les autres.The Fig. 8 represents a drawing device 620 intended to be positioned either on the work machine 400 or on one of the shoring panels 100. The pulling device 620 is intended to pull on the pipes of the pipe to fit them together in each other.

Le dispositif de tirage 620 comprend des moyens de fixation 1102 et des moyens de tirage.The pulling device 620 comprises fastening means 1102 and pulling means.

Dans le mode de réalisation de l'invention représenté sur la Fig. 11, les moyens de fixation prennent la forme d'une barre de fixation 1102 qui vient se fixer sur l'engin de travaux 400 ou sur l'un des panneaux d'étaiement 100 et, en particulier, sur l'une des ailes latérales 104, 106.In the embodiment of the invention shown in FIG. 11, the fixing means take the form of a fixing bar 1102 which is fixed on the work machine 400 or on one of the shoring panels 100 and, in particular, on one of the lateral wings 104, 106.

Les moyens de tirage comprennent une colonne 1104, un vérin de traction 1106, une barre de tirage 1108, un câble de tirage 1110, une poulie de déviation 1112 et un grappin (non représenté) prévu pour s'accrocher à l'extrémité d'un tuyau constituant la canalisation.The pulling means comprise a column 1104, a traction cylinder 1106, a draw bar 1108, a draw cable 1110, a deflection pulley 1112 and a grapple (not shown) provided for hooking onto the end of a pipe constituting the pipe.

La barre de fixation 1102 est solidaire de colliers qui enserrent la colonne 1104. La colonne 1104 est mobile en translation à l'intérieur des ces colliers pour permettre de relever le dispositif de tirage 620 lorsque l'engin de travaux 400 n'est pas en position de travail et d'abaisser le dispositif de tirage 620 lorsque l'engin de travaux 400 est en position de travail.The fixing bar 1102 is secured to collars which enclose the column 1104. The column 1104 is movable in translation inside these collars to raise the pulling device 620 when the work machine 400 is not in position. working position and lower the pulling device 620 when the work machine 400 is in the working position.

De préférence, le dispositif de tirage 620 est libre de pivoter autour d'un axe sensiblement vertical pour permettre d'orienter la direction de tirage en fonction de la longueur du tuyau sur lequel il est prévu de tirer. Comme cela est décrit ci-après, la direction de tirage est sensiblement horizontale et dans le plan médian de la poulie de déviation 1112.Preferably, the pulling device 620 is free to pivot about a substantially vertical axis to allow to direct the direction of pull according to the length of the pipe on which it is intended to pull. As described below, the pulling direction is substantially horizontal and in the median plane of the deflection pulley 1112.

Le vérin de traction 1106, la barre de tirage 1108 et le câble de tirage 1110 sont disposés à l'intérieur de la colonne 1104 et la poulie de déviation 1112 est disposée en partie basse de la colonne 1104.The traction cylinder 1106, the draw bar 1108 and the pull cable 1110 are arranged inside the column 1104 and the deflection pulley 1112 is arranged in the lower part of the column 1104.

A l'extrémité du vérin de traction 1106 est prévu un premier dispositif de liaison 1118 auquel est fixée l'une des extrémités de la barre de tirage 1108. A l'autre extrémité de la barre de tirage 1108 est prévu un deuxième dispositif de liaison 1120 auquel est fixée l'extrémité du câble de tirage 1110 qui n'est pas pourvu du grappin.At the end of the traction cylinder 1106 is provided a first connecting device 1118 to which is fixed one end of the draw bar 1108. At the other end of the draw bar 1108 is provided a second connecting device 1120 to which is fixed the end of the pull cable 1110 which is not provided with the grapple.

La poulie de déviation 1112 est montée libre en rotation autour d'un axe de rotation 1116 qui est sensiblement horizontal. La poulie de déviation permet de changer l'orientation du câble de tirage 1110 qui passe d'une orientation verticale à une orientation horizontale.The deflection pulley 1112 is mounted free to rotate about an axis of rotation 1116 which is substantially horizontal. The deflection pulley makes it possible to change the orientation of the pull cable 1110 which passes from a vertical orientation to a horizontal orientation.

Le mode de fonctionnement du dispositif de tirage 620 est le suivant.The operating mode of the pulling device 620 is as follows.

Le premier tuyau 670a comprend une première extrémité et une deuxième extrémité.The first pipe 670a includes a first end and a second end.

Le deuxième tuyau 670b comprend une première extrémité qui doit s'emmancher dans la deuxième extrémité du premier tuyau 670a et une deuxième extrémité dans laquelle doit s'emmancher la première extrémité d'un troisième tuyau.The second pipe 670b comprises a first end which must be fitted into the second end of the first pipe 670a and a second end into which the first end of a third pipe must be fitted.

Lorsque le deuxième tuyau 670b doit être emmanché dans le premier tuyau 670a, le grappin est fixé à la deuxième extrémité du deuxième tuyau 670b, puis le vérin de tirage 1106 tire, dans la direction de la flèche 1122, sur la barre de tirage 1108 et le câble de tirage 1110, ce qui provoque le tirage du grappin et donc l'emmanchement du deuxième tuyau 670b dans le premier tuyau 670a. Après quoi le vérin de traction 1106 est relâché, dans la direction de la flèche 1124, ce qui abaisse la barre de tirage 1108 et le câble de tirage 1110 et permet de libérer le grappin.When the second pipe 670b is to be fitted into the first pipe 670a, the grapple is attached to the second end of the second pipe 670b, then the draw cylinder 1106 pulls, in the direction of the arrow 1122, on the draw bar 1108 and the pull cable 1110, which causes the pulling of the grapple and thus the fitting of the second pipe 670b in the first pipe 670a. After which the traction cylinder 1106 is released, in the direction of the arrow 1124, which lowers the draw bar 1108 and the pull cable 1110 and releases the grapple.

Il est possible d'utiliser un seul dispositif de tirage 620, mais il est préférable d'en utiliser deux, disposés de part et d'autre des tuyaux 670a et 670b à emmancher, afin d'obtenir une force de tirage totale sensiblement alignée avec la direction longitudinale de la canalisation.It is possible to use a single pulling device 620, but it is preferable to use two, arranged on both sides of the pipes 670a and 670b to be fitted, in order to obtain a total pulling force substantially aligned with the longitudinal direction of the pipeline.

Lorsque le dispositif de tirage 620 est mobile en rotation autour d'un axe vertical, il peut être pivoté afin d'orienter le plan médian de la poulie de déviation 1112 vers la deuxième extrémité du deuxième tuyau 670b.When the draw device 620 is rotatable about a vertical axis, it can be pivoted to orient the center plane of the deflection pulley 1112 to the second end of the second pipe 670b.

Bien entendu, la présente invention n'est pas limitée aux exemples et modes de réalisation décrits et représentés, mais elle est susceptible de nombreuses variantes accessibles à l'homme de l'art.Of course, the present invention is not limited to the examples and embodiments described and shown, but it is capable of many variants accessible to those skilled in the art.

Par exemple, le panneau d'étaiement 100 a été plus particulièrement décrit dans le cadre du module central 102 et de deux ailes latérales 104 et 106, mais le nombre d'ailes latérales est au moins égal à un.For example, the shoring panel 100 has been more particularly described in the context of the central module 102 and two lateral wings 104 and 106, but the number of lateral wings is at least one.

Les trappes de passage 112 et 114 ont été décrites comme pouvant pivoter, mais il est également possible de prévoir que l'escamotage s'effectue par coulissement vertical, horizontal, ou autres, de chaque trappe de passage parallèlement au module central 102.The through-hatches 112 and 114 have been described as being able to pivot, but it is also possible to provide for the retraction to take place by vertical, horizontal or other sliding of each through-hatch parallel to the central module 102.

Bien que le transport, le positionnement et le maintien en position des panneaux d'étaiement 100 soient particulièrement avantageux à l'aide de l'engin de travaux 400 décrit ci-dessus, il est possible de positionner et de maintenir deux panneaux d'étaiement 100 de la même manière que deux panneaux d'étaiement de l'état de la technique. En particulier, il est possible de positionner un ou plusieurs vérins horizontalement entre les deux modules centraux 102 se faisant face dans la tranchée tout en laissant libre la possibilité de rotation des ailes latérales 104 et 106.Although the transportation, positioning and the holding in position of the shoring panels 100 are particularly advantageous using the work machine 400 described above, it is possible to position and maintain two shoring panels. 100 in the same way as two shoring panels of the state of the art. In particular, it is possible to position one or more cylinders horizontally between the two central modules 102 facing each other in the trench while leaving free the possibility of rotation of the lateral wings 104 and 106.

Le poste de commande 114 et l'élévateur 420 ont été décrits comme étant disposés à l'arrière de l'engin de travaux 400, mais ils peuvent être disposés à l'avant de l'engin de travaux 400.The control station 114 and the elevator 420 have been described as being arranged at the rear of the work machine 400, but they can be arranged at the front of the machine 400.

L'invention a été plus particulièrement décrite dans le cas où le technicien 412 commande l'engin de travaux 400 depuis le poste de commande 114, mais il est possible que certaines commandes soient également déportées sur un boîtier distant, de manière à être accessibles depuis le fond de la tranchée.The invention has been more particularly described in the case where the technician 412 controls the work machine 400 from the control station 114, but it is possible that some commands are also remote on a remote box, so as to be accessible from the bottom of the trench.

Claims (18)

  1. Supporting panel (100) comprising:
    - a central module (102) and;
    - at least one side wing (104, 106);
    the supporting panel being characterised in that the/each side wing (104, 106) when fitted can rotate freely in relation to the central module (102) around an axis of rotation which is markedly vertical when the supporting panel (100) is in its position of use.
  2. Supporting panel (100) according to claim 1, characterised in that it includes an initial side wing (104) and a second side wing (106) arranged either side of the central module (102).
  3. Supporting panel (100) according to one of claims 1 or 2, characterised in that the/each side wing (104, 106) is fitted with a rotation locking device.
  4. Supporting panel (100) according to claim 3, characterised in that the/each rotation locking device constitutes a driving element designed to cause the side wing (104, 106) in question to rotate.
  5. Supporting panel (100) according to one of Claims 1 to 4, characterised in that it is fitted with at least one access gate (112, 114).
  6. Supporting panel (100) according to claim 5, characterised in that the/each access gate (112, 114) when fitted can rotate freely around an axis of rotation which is markedly vertical when the supporting panel (100) is in its position of use.
  7. Supporting panel (100) according to one of claims 5 or 6, characterised in that the/each access gate (112, 114) is fitted with a locking device (206).
  8. Works vehicle (400) comprising:
    - a chassis (430) supported by means of movement (404);
    - two supporting panels (100) in accordance with one of the previous claims and facing each other; and
    - for each supporting panel (100) a means of movement (402) on the said chassis (430) and designed to move the supporting panel (100) in question vertically;
    the works vehicle (400) being characterised in that the chassis (430) includes means of adjustment (408, 410) designed to expand and contract the said chassis (430) in order to adjust the spacing between the two supporting panels (100).
  9. Works vehicle (400) according to claim 8, characterised in that it includes lifting devices (500) designed to lift the said means of movement (404), in particular when expanding and contracting the said chassis (430).
  10. Works vehicle (400) according to one of claims 8 or 9, characterised in that the said means of adjustment include a telescopic front transverse beam (408) comprising a male front beam (604) and a female front beam (606) mobile inside the said male front beam (604), and a telescopic rear transverse beam (410) comprising a male rear beam (608) and a female rear beam (610) mobile inside the said male rear beam (608).
  11. Works vehicle (400) according to claim 10, characterised in that the chassis (430) also includes:
    - a first longitudinal beam (406);
    - a second longitudinal beam (602) parallel to the aforementioned first longitudinal beam (406);
    - the front transverse beam (408) linking one end of the first longitudinal beam (406) to one end of the second longitudinal beam (602); and
    - the rear transverse beam (410) parallel to the aforementioned front transverse beam (408) and linking the other end of the first longitudinal beam (406) to the other end of the second longitudinal beam (602).
  12. Works vehicle (400) according to claim 11, characterised in that the two supporting panels (100) are set up inside the space delimited by the first longitudinal beam (406), the second longitudinal beam (602), the front transverse beam (408) and the rear transverse beam (410).
  13. Works vehicle (400) according to one of claims 11 or 12, characterised in that one of the supporting panels (100) is fitted and mobile on the aforementioned first longitudinal beam (406) and in that the other supporting panel (100) is fitted and mobile on the aforementioned second longitudinal beam (602).
  14. Works vehicle (400) according to one of claims 8 to 13, characterised in that it includes, for each supporting panel (100) at least one guide device (502, 504) designed to assist the said supporting panel (100) when moving vertically.
  15. Works vehicle (400) according to claim 14, characterised in that each guide device (502, 504) includes at least one slide roller (652) integral to the chassis (430) and in that each supporting panel (100) has at least one guide rail (122, 124) inside which runs one of the slide rollers (652).
  16. Works vehicle (400) according to one of claims 8 to 15, characterised in that it includes at least one pulling device (620) designed to pull on the pipes (670a, 670b) of lines to be fixed (shrunk on).
  17. Works vehicle (400) according to claim 16, characterised in that the pulling device (620) includes fixings (1102) designed to fasten the said pulling device (620) to the chassis (430) or to the supporting panel (100).
  18. Works vehicle (400) according to one of claims 16 or 17, characterised in that it includes two pulling devices (620) set either side of the pipes (670a, 670b) to be fixed (shrunk on).
EP07011576A 2006-06-13 2007-06-13 Supporting panel Not-in-force EP1900879B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0605262A FR2902119B1 (en) 2006-06-13 2006-06-13 EXPANDING PANEL, IN PARTICULAR FOR TRENCH AND WORK EQUIPMENT COMPRISING SUCH AN EVALUATION PANEL

Publications (2)

Publication Number Publication Date
EP1900879A1 EP1900879A1 (en) 2008-03-19
EP1900879B1 true EP1900879B1 (en) 2010-01-27

Family

ID=37745845

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07011576A Not-in-force EP1900879B1 (en) 2006-06-13 2007-06-13 Supporting panel

Country Status (4)

Country Link
EP (1) EP1900879B1 (en)
AT (1) ATE456709T1 (en)
DE (1) DE602007004544D1 (en)
FR (1) FR2902119B1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH491254A (en) * 1967-04-07 1970-05-31 Jost Ag Heimberg Geb Sprouting plant
US3473336A (en) * 1967-05-18 1969-10-21 Emanuel Torti Adjustable trench shoring machine
DE2523732C3 (en) * 1975-05-28 1980-06-04 Leningradskoe Otdelenie Vsesojuznogo Proektno-Isyskatelskogo I Nautschno-Issledovatelskogo Instituta Gidroproekt Imeni S.J. Schuka, Leningrad (Sowjetunion) System for sinking into the ground and pulling out of the ground support or auxiliary elements that are used in the creation of pile foundations
DE19813282A1 (en) * 1998-03-26 1999-09-30 Richter Wolfgang Trench sheeting device
FR2799774B1 (en) * 1999-10-13 2003-04-04 Martine Griguer POLYETHYLENE SHEET COATING SYSTEM FORMING WALLS OR TEMPORARY FORMWORK FOR EARTH SUPPORTS AND PROTECTION OF POSSIBLE BURIALS IN TRENCHES
DE102004041116A1 (en) * 2004-08-24 2006-03-02 Emunds & Staudinger Gmbh shoring

Also Published As

Publication number Publication date
FR2902119B1 (en) 2008-08-22
EP1900879A1 (en) 2008-03-19
FR2902119A1 (en) 2007-12-14
ATE456709T1 (en) 2010-02-15
DE602007004544D1 (en) 2010-03-18

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