EP4001515A1 - System zum ausheben von gräben und verlegen von länglichen gegenständen, insbesondere von rohren oder kabeln, unter verarbeitung des aushubmaterials - Google Patents

System zum ausheben von gräben und verlegen von länglichen gegenständen, insbesondere von rohren oder kabeln, unter verarbeitung des aushubmaterials Download PDF

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Publication number
EP4001515A1
EP4001515A1 EP21205345.8A EP21205345A EP4001515A1 EP 4001515 A1 EP4001515 A1 EP 4001515A1 EP 21205345 A EP21205345 A EP 21205345A EP 4001515 A1 EP4001515 A1 EP 4001515A1
Authority
EP
European Patent Office
Prior art keywords
heel
casing
chamber
trench
wheel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP21205345.8A
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English (en)
French (fr)
Other versions
EP4001515B1 (de
EP4001515C0 (de
Inventor
Philippe TODESCO
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OT Engineering SAS
Original Assignee
OT Engineering SAS
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Filing date
Publication date
Application filed by OT Engineering SAS filed Critical OT Engineering SAS
Publication of EP4001515A1 publication Critical patent/EP4001515A1/de
Application granted granted Critical
Publication of EP4001515B1 publication Critical patent/EP4001515B1/de
Publication of EP4001515C0 publication Critical patent/EP4001515C0/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/08—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging wheels turning round an axis
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/12—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with equipment for back-filling trenches or ditches

Definitions

  • the present invention relates to the field of systems for digging trenches in the ground for laying elongated objects, in particular optical cables, electric cables, or tubes intended to receive this type of cable, or even conduits.
  • the rotation of the trenching wheel of the digging system and the advance of the carrier truck allows the obtaining in the ground of a trench at the desired depth.
  • the carrier truck is also equipped with a device for suction and collection of the cuttings which are generated during the digging of the trench.
  • the latter After laying the cables or tubes inside the trench, the latter is filled with a ready-to-use cement-based mortar which is manufactured in a specialized factory and which is transported to the site using another machine of the truck-mixer type.
  • the present invention aims to remedy these drawbacks.
  • the invention relates to a system for digging at least one trench in the ground, for depositing at least one elongated object, in particular a tube or a cable, and for filling in the dug trench.
  • the system includes a trencher wheel and a housing partially enclosing the trencher wheel. A part of the slicing wheel projects out of the casing and the other part of the wheel is located inside an internal housing of said casing.
  • the system further comprises a heel integral with the casing and arranged at least partly at the rear of the slicing wheel.
  • heel is meant a rear part of the system.
  • heel secured to the casing is meant that the heel is fixed relative to the casing.
  • the heel and the housing can be formed as separate pieces to facilitate manufacturing. Alternatively, the heel could be made in one piece with the casing.
  • the heel internally delimits at least one cuttings collection chamber in communication with the internal housing of said casing and having at least one outlet opening.
  • the heel comprises means for guiding said elongated object to be deposited provided with an inlet opening and an outlet opening for the passage of said elongated object which is offset vertically downwards with respect to the outlet opening of the collection chamber.
  • the heel internally delimits the collection chamber and a guide chamber of said elongated object to be deposited forming at least in part said guide means and provided with inlet and outlet openings.
  • a system which makes it possible to simultaneously carry out the operation of digging the trench, the operation of depositing the elongated object(s) inside the dug trench, and the operation of covering of this or these elongated objects deposited and of filling in the dug trench with the cuttings produced during the digging operation.
  • the cuttings generated during the digging of the trench go up inside the casing before being sent to the chamber collection of the heel, then reintroduced into the trench which has just been dug for the removal of the elongated object(s).
  • the cuttings generated during digging are drawn inside the internal housing of the housing and the collection chamber of the heel by rotation of the trenching wheel.
  • the system of the invention thus makes it possible to reduce the costs of laying optical, electrical, telephone cables, etc., and is more ecological.
  • any risk of interference is avoided between, on the one hand, the elongated object to be deposited and, on the other hand, the trenching wheel and the cuttings.
  • the heel collection chamber forms an upper chamber thereof and the guide chamber forms a lower chamber of said heel.
  • the entrance opening of the guide chamber of the bead opens laterally. This promotes reduced transverse bulk for the heel.
  • the bead may internally comprise a compartmentalization wall which separates the upper collection and lower guide chambers, and which is inclined obliquely downwards and towards the rear.
  • the casing can also be equipped internally with a ramp obliquely extending the partitioning wall of the heel and extending inside the internal housing of said casing.
  • the heel internally delimits an upper chamber for collecting cuttings, and a lower chamber for guiding said elongated object to be deposited, the inlet opening of the guiding chamber of the heel emerging laterally.
  • the outlet opening of the bead guide chamber is located vertically below and plumb with the outlet opening of the collection chamber.
  • the heel may further comprise at least one sheath for guiding said elongated object to be deposited which extends inside the guide chamber in the direction of the outlet opening of said chamber. This facilitates the passage and sliding of said elongated object to be deposited during operation of the system.
  • the guide sleeve may extend projecting through the inlet opening.
  • the heel compartmentalization wall can then be equipped with means for blocking said guide sleeve.
  • the system also comprises at least one distribution means able to distribute at least one binder in the internal housing of the casing and/or in the collection chamber of the heel, and/or in an area adjacent to the casing. located in front of the trenching wheel.
  • at least one distribution means able to distribute at least one binder in the internal housing of the casing and/or in the collection chamber of the heel, and/or in an area adjacent to the casing. located in front of the trenching wheel.
  • the cuttings are mixed with the binder before being reintroduced into the trench, which makes it possible to plug it and obtain a backfill material with good bearing and resistance characteristics after subsequent operation. of compaction.
  • said means of distributing the system distributes the binder inside the internal housing of the casing.
  • said distribution means feeds by binding the collection chamber of the bead.
  • said distribution means distributes the binder both in the internal housing of the casing and in the collection chamber of the heel.
  • said distribution means distributes the binder in an area adjacent to the casing located in front of the slicing wheel. This adjacent area is located outside the internal housing of the crankcase. In this fourth design, the binder is spread in front of the trenching wheel on the ground to be excavated.
  • Said binder distribution means can be integral with the casing and/or the heel.
  • said binder distribution means comprises a frame delimiting a metering chamber in communication with the internal housing of the casing, at least one endless screw mounted vertically inside the metering chamber, and means for driving said endless screw in rotation.
  • said dispensing means may comprise two worm screws mounted vertically inside the metering chamber which are driven in rotation by the drive means.
  • said distribution means may comprise a hopper capable of receiving the binder and in communication with the internal housing of the casing, and/or with the heel collection chamber, and/or capable of pouring the binder into said zone adjacent to the casing located in front of the trenching wheel.
  • the hopper can be equipped with a movable shutter between at least one open position for distributing the binder and a closed position.
  • the flap may for example be adapted to close an inlet opening of the internal housing and/or of the heel collection chamber, and to close said opening.
  • said dispensing means could have another design than in the form of a hopper.
  • Said distribution means could for example be an injector.
  • the casing can be equipped with a sole intended to bear against the surface of the ground.
  • the heel can also be equipped with a sole offset vertically downwards with respect to the sole of the casing and intended to bear against the bottom of the dug trench. This helps guide the system as it advances.
  • the heel guide chamber is advantageously offset at least partly vertically downwards with respect to the sole of the casing.
  • the heel is advantageously arranged at least partly at the rear of the casing.
  • the heel can be fitted with an access hatch to the cuttings collection chamber.
  • the system can also be additionally equipped with at least one water injector capable of injecting water into the collection chamber of the heel and/or into the internal housing of the casing.
  • the invention also relates to a method for digging at least one trench in the ground, for depositing at least one elongated object and for filling in the dug trench.
  • the first, second and third steps are carried out simultaneously.
  • the third step of covering said elongated object and filling in the dug trench is carried out with the cuttings generated during the first digging step which are driven by the rotation of the trenching wheel.
  • the third step of covering said elongated object and filling in the dug trench is carried out with the cuttings generated and with at least one binder which is also driven by the rotation of the trenching wheel.
  • the method further comprises a fourth step of injecting said binder inside a casing of the wheel of the trencher which is carried out simultaneously with the first, second and third steps.
  • the method may further comprise a fourth step of spreading said binder on the ground to be excavated in front of the trenching wheel which is carried out simultaneously with the first, second and third steps.
  • the method further comprises a water injection step, this water being mixed with the cuttings generated during the first digging step and driven by the rotation of the trenching wheel
  • a system is shown, referenced 10 as a whole, which is suitable for digging a trench in the ground, for depositing elongated objects in the dug trench and for the internal treatment of the cuttings generated.
  • the elongated objects are tubes 11.
  • the system 10 is intended to be hooked to the rear of a motorized machine to allow its advancement, for example a carrier truck.
  • the system 10 comprises a slicing wheel 12, a casing 14 partially enveloping the slicing wheel, and a heel 16 integral with the casing 14 and arranged longitudinally at the rear of the slicing wheel 12.
  • the slicing wheel 12 is provided at its periphery with cutting members 18, here made in the form of added teeth.
  • cutting members 18 here made in the form of added teeth.
  • any other type of trenching wheel such as cutting and sawing discs could be used.
  • the trenching wheel 12 is intended to make narrow trenches, for example of the order of 10 to 20 cm, and of shallow depth, for example less than 50 cm, in particular for laying tubes such as optical, electrical, telephone cables, etc.
  • the slicing wheel 12 is rotatable about a transverse axis 12a.
  • the system 10 is equipped with a drive member 20 in rotation, such as a geared motor, extending in the hub of the slicing wheel 12.
  • the protective casing 14 envelops an upper part 12a ( figure 5 ) of the trenching wheel.
  • the casing 14 internally delimits a housing 22 inside which is located the upper part 12a of the slicing wheel.
  • a lower part 12b of the trenching wheel projects downwardly from the housing 14. In operation, the upper part 12a of the trenching wheel is located outside the dug trench and the lower part 12b is located in the trench.
  • the housing 14 has a vertical section of general inverted U shape inside which is located the upper part 12a of the slicing wheel.
  • the casing 14 is equipped, in the lower part, with a peripheral flange 24 intended to bear against the surface of the ground as shown on the figure 6 .
  • the sole 24 extends transversely.
  • the casing 14 is delimited in the vertical direction by the sole 24.
  • the housing 14 comprises two side flanges 26, 28 spaced apart transversely, and a central flange 30 to which the flanges are fixed on either side.
  • the sole 24 is fixed on the flanges 26, 28.
  • the flanges 26, 28 and the flange 30 jointly delimit the internal housing 22 of the casing.
  • the flange 30 has a half-crown shape.
  • the flanges 26, 28 delimit the housing 22 in the transverse direction.
  • the flange 30 delimits the housing 22 in the vertical direction.
  • the housing 22 is open vertically downwards to allow passage of the slicing wheel 12.
  • the housing 22 is also open towards the rear on the side of the heel 16.
  • the casing 14 also comprises, in the rear part, a plate 32 ( figure 5 ) defining a through opening 34 to allow communication between the internal housing 22 of the housing and the heel 16.
  • the opening 34 passes through the thickness of the plate 32 in the longitudinal direction.
  • Plate 32 is fixed to flanges 26, 28 and flange 30.
  • the system 10 further comprises a lug 36 fixed to the casing 14 to allow attachment to the associated motorized vehicle and its manipulation.
  • the system 10 can thus be manipulated to adjust in particular the depth of the trench to be dug or to pass into a raised position relative to the ground.
  • the lug 36 is fixed to one of the side flanges 26, 28 of the casing.
  • the lug 36 also supports the drive member 20 of the slicing wheel.
  • the heel 16 is arranged partly at the rear of the casing 14.
  • the heel 16 is fixed to the casing 14.
  • the heel 16 internally delimits a first upper chamber 40 and a second lower chamber 42 which are separate from each other.
  • the upper 40 and lower 42 chambers are separated from each other. In other words, there is no communication from one room 40, 42 to another.
  • the chambers 40, 42 are located vertically one below the other.
  • the upper chamber 40 is intended to receive and evacuate the cuttings generated during the digging of the trench.
  • the lower chamber 42 is for its part intended to receive the tubes 11 to be laid at the bottom of this trench.
  • the tubes 11 are shown only partially, as regards their length, for reasons of clarity.
  • the upper chamber 40 is in communication with the internal housing 22 of the housing.
  • the upper chamber 40 is in communication with the through opening 34 of the plate.
  • the upper chamber 40 has a through inlet opening 44 which faces this through opening 34.
  • the upper chamber 40 is in communication with the internal housing 22 of the housing via the inlet opening 44 located longitudinally on the side of the trenching wheel 12.
  • the upper chamber 40 also has a through-out outlet opening 46 which is located longitudinally opposite the slicing wheel 12 and the inlet opening 44.
  • the outlet opening 46 is located at the rear of the heel 16 The outlet opening 46 faces the opposite side of the trencher wheel 12, i.e. facing rearward.
  • the lower chamber 42 has a side entrance opening 48 ( figure 1 and 3 ) leading outwards.
  • the entrance opening 48 is through.
  • Inlet opening 48 extends transversely through the thickness of heel 16.
  • the lower chamber 42 also has an exit opening 50 which is located longitudinally opposite the slicing wheel 12.
  • the exit opening 50 is located at the rear of the heel 16.
  • the exit opening 50 is oriented on the opposite side of the trenching wheel 12, i.e. oriented towards the rear.
  • the outlet opening 50 is located vertically below and plumb with the outlet opening 46.
  • the heel 16 is internally equipped with a partitioning wall 52 separating inside thereof the upper 40 and lower 42 chambers.
  • the compartmentalization wall 52 also separates the outlet openings 46, 50.
  • the compartmentalization wall 52 is inclined obliquely downwards and to the rear.
  • the partitioning wall 52 is rectilinear.
  • the compartmentalization wall 52 extends from the front to the rear of the heel 16.
  • the compartmentalization wall 52 extends obliquely from the entrance opening 44.
  • the heel 16 comprises two side flanges 56, 58 spaced apart transversely, and a central flange 60 to which the flanges are fixed on either side.
  • the casing 14 is equipped, in the lower part, with a sole 62 intended to come opposite the bottom of the trench as shown in the figure 6 .
  • the heel 16 also comprises, in the front part, a front plate 64 delimiting the through inlet opening 44 of the upper chamber 40.
  • the opening 44 passes through the thickness of the plate 64 in the longitudinal direction.
  • the inlet opening 44 faces the through-opening 34 of the casing to obtain communication between the upper chamber 40 and the internal housing 22 of the casing.
  • the plate 64 is fixed on the flanges 56, 58 and the flange 60 of the heel.
  • the plate 64 is also fixed to the plate 32 of the housing.
  • the flanges 56, 58 as well as the flange 60 and the wall 52 for compartmentalizing the heel jointly delimit the upper chamber 40 of the heel.
  • the flanges 56, 58 delimit the chamber 40 in the transverse direction.
  • the flange 60 and the partitioning wall 52 delimit the chamber 40 in the vertical direction.
  • the plate 64 delimits in the longitudinal direction the chamber 40 on the front side. Chamber 40 is open to the rear through outlet opening 46. Chamber 40 is open to the front through inlet opening 44.
  • Heel 16 is equipped with a hatch 65 for access to the chamber 40 which is removably mounted on the flange 60.
  • the flanges 56, 58 as well as the sole 62 and the partitioning wall 52 jointly delimit the lower chamber 42.
  • the flanges 56, 58 delimit the chamber 42 in the transverse direction.
  • the sole 62 and the partitioning wall 52 delimit the chamber 42 in the vertical direction.
  • Chamber 42 is open at the rear via outlet opening 50. Chamber 42 is closed at the front.
  • the heel 16 also comprises, in the front part, a curved wall 66 delimiting in the longitudinal direction the chamber 42 on the front side.
  • the wall 66 is fixed on the flanges 56, 58 and the sole 62 of the heel.
  • the wall 66 is also fixed to the plate 64.
  • the curved wall 66 is located in the vicinity of the slicing wheel 12. The radius of curvature of the wall 66 is adapted to that of the slicing wheel 12.
  • the casing 14 also comprises a ramp 68 extending obliquely upwards the wall 52 for compartmentalizing the heel and extending inside the internal housing 22 of said casing.
  • the ramp 68 extends above the trenching wheel 12.
  • the ramp 68 is provided to facilitate the passage of the cuttings from the internal housing 22 of the housing to the upper chamber 40 of the heel during the rotation of the slicing wheel 12.
  • For the heel 16 only the upper chamber 40 is in communication with the internal housing 22 of the housing.
  • the lower chamber 42 of the heel does not communicate with the housing 22.
  • the system 10 further comprises sheaths 70 for guiding the tubes 11 to be deposited in the trench which extend inside the lower chamber 42 of the heel.
  • the sheaths 70 here extend projecting outwards through the inlet opening 48 of the heel 16.
  • the inlet opening 48 is made in the thickness of the flange 56 of the heel.
  • Each sheath is intended to receive one of the tubes 11 to be placed in the dug trench.
  • the sheaths 70 extend in the direction of the outlet opening 50 of the lower chamber of the heel. In the illustrated embodiment, the sheaths 70 are set back from the outlet opening 50. Alternatively, the sheaths could be flush with the outlet opening 50, or extend projecting outwardly relative to this one. In the illustrated embodiment, the lower end 52a of the compartmentalization wall 52 is folded downwards so as to guide the tubes 11. The lower end 52a of the compartmentalization wall delimits the outlet opening 50.
  • the partitioning wall 52 is equipped with a lug 72 bearing against them.
  • the sheaths 70 are three in number. As a variant, it is possible to provide a lower or higher number of sheaths.
  • the system 10 further comprises a hopper 80 fixed to the casing 14 longitudinally on the side opposite the heel 16.
  • the hopper 80 is fixed to the front of the casing 14. In the embodiment illustrated, the hopper 80 is fixed to the puddles 26 , 28 from the crankcase.
  • the hopper 80 delimits a reservoir 82 of binder.
  • the hopper 80 is provided for the supply or distribution of the binder in the internal housing 22 of the housing.
  • the binder can for example be a hydraulic binder.
  • hydraulic binder is meant a binder which, mixed with water, forms a paste which sets and hardens.
  • the binder can for example be cement or even lime.
  • a dye can also be introduced inside the tank 82 of the hopper.
  • the hopper 80 is in fluid communication with the internal housing 22 of the housing.
  • an inlet opening (not visible in the figures) is provided on the housing 14 to allow fluid communication between the internal housing 22 and the reservoir 82 of the hopper.
  • the inlet opening extends for example vertically between the sole 24 and the lower end of the flange 30 of the casing which is offset upwards with respect to the sole.
  • the system 10 also comprises a closure flap 84 of the inlet opening of the casing 14 which is mounted to move between a closed position (illustrated in the figures) in which no fluid communication between the internal housing 22 of the casing and the reservoir 82 of the hopper is authorized, and at least one open position allowing this communication.
  • the shutter 84 is mounted to slide vertically between the lowered closed position and the raised open position. In the illustrated embodiment, the shutter 84 is mounted inside the hopper. Alternatively, it could be possible to interpose the shutter 84 between the hopper 80 and the casing 14. The displacement of the shutter 84 can be carried out manually or controlled electronically.
  • the system 10 further comprises water injectors 90 capable of injecting water into the upper chamber 40 of the heel.
  • the water injectors 90 are mounted on the heel 16, here on the flanges 56 and 58.
  • the water injectors are equipped with nozzles opening inside the upper chamber 40 of the heel.
  • the system 10 is attached to the rear of a motorized carrier (not shown) via the bracket 36.
  • the cables or tubes 11 which are to be deposited at the inside a trench to be digged are carried by the motorized machine using reel carriers.
  • Each tube 11 is introduced inside one of the sheaths 70 of the system.
  • the hopper 80 of the system is also filled with binder.
  • the hopper 80 can be supplied with binder via a tank arranged on the motorized carrier, and a conduit connecting the hopper to the tank.
  • the work phase and in particular the digging, can begin.
  • These operations can be controlled by radio control by a operator using a control unit controlling the operation of the slicing wheel 12 of the system.
  • the advance of the motorized carrier machine is adapted to the realization of the trench.
  • the trench T is executed with the trenching wheel 12 of the system which is positioned with its axis 12a of rotation oriented horizontally as shown in the figure 6 .
  • the speed of rotation of the slicing wheel 12 can for example be between 50 and 150 rpm.
  • the cutting elements 18 gradually dig the trench T.
  • the sole 24 of the casing bears against the ground S and the sole 62 of the heel is facing the bottom of the trench T.
  • the tubes 11 are deposited along the trench T at the bottom thereof, being guided beforehand inside the sheaths 70 which themselves extend into the lower chamber 42 of the heel.
  • the cuttings produced by the digging of the trench T are driven by the trenching wheel 12 inside the internal housing 22 of the casing.
  • the closing flap 84 of the hopper is in the open position to distribute the binder inside the housing 22.
  • the passage of the closing flap 84 towards the open position is carried out manually or is controlled by the unit control controlling the operation of the trenching wheel 12.
  • the cuttings mixed with the binder are driven by the slicing wheel 12 inside the housing 22 of the casing and go up along the latter until they reach the upper chamber 40 of the heel.
  • the cuttings mixed with the binder DL then slide along the compartmentalization wall 52 of the heel before being evacuated through the outlet opening 46.
  • the cuttings mixed with the binder D-L cover the tubes 11 deposited at the bottom of the trench T and completely fill the trench. All of the cuttings generated during the digging of the trench T are thus reintroduced into this trench at the rear of the trenching wheel 12 to fill it.
  • binder makes it possible to make the cuttings produced by the excavation more resistant and harder before their reintroduction inside the trench T.
  • the quantity of binder to be added to the cuttings produced depends on the nature of the soil S to be dug.
  • the opening height of shutter 84 is adjusted according to the amount of binder to be added.
  • the quantity of binder to be added to the cuttings produced can also be adapted according to the speed of advance of the trenching wheel 12.
  • water can also be introduced inside the upper chamber 40 of the heel by the water injectors 90.
  • the operation of the water injectors 90 can be controlled by the control unit also controlling the operation of the trenching wheel 12.
  • the hopper 80 and the water injectors 90 can respectively be supplied with binder and water from tanks transported by the motorized carrier.
  • the hopper 80 allows a distribution of binder inside the internal housing 22 of the housing.
  • the hopper 80 could distribute the binder on the ground S to be dug in an area adjacent to the casing 14 above said hopper and in front of the trenching wheel 12. In this case, the binder is spread on the ground S.
  • the cuttings and the spread binder are also driven by the trenching wheel 12 inside the internal housing 22 of the casing then towards the upper chamber 40 of the heel.
  • the hopper 80 allows a distribution of binder inside the internal housing 22 of the housing.
  • the system 10 comprises a distribution means 100 which comprises a frame 102 fixed to the casing 14 and a binder supply conduit 104 opening into the frame.
  • the frame 102 is fixed to the upper part of the casing 14.
  • the frame 102 is fixed to the flange 30 of the casing.
  • the frame 102 internally delimits a chamber 106 for metering the binder.
  • This chamber 106 is in fluid communication with the internal housing 22 of the casing via a through opening (not visible) formed in the thickness of the flange 30 of the casing.
  • the distribution means 100 also comprises two endless screws 108 ( figure 9 ) arranged inside the frame 102 being oriented vertically, a chain 110 for driving the screws 108 in rotation, and a drive motor 112 connected to the chain 110
  • the axes of rotation of the endless screws 108 are vertical and parallel.
  • the endless screws 108 are arranged relative to each other so that the helix of one of the screws partially engages in the helical space left free by the helix of the other of the screws. .
  • the binder is brought inside the metering chamber 106 of the chassis via the supply duct 104 which is connected to a binder tank arranged for example on the motorized carrier.
  • the rotation of the two endless screws 108 makes it possible to grind any agglomerates of binder and to direct the binder towards the internal housing 22 of the casing inside which the binder is mixed with the cuttings generated which are driven by the trenching wheel 12.
  • the distribution means of the system could still have other designs.
  • the distribution means could for example comprise one or more binder injectors opening into the internal housing of the casing, or else a paddle wheel driven in rotation and allowing the injection of binder into the internal housing of the casing.
  • the system comprises a binder dispensing means.
  • a system devoid of binder distribution means it is possible to provide, without departing from the scope of the invention, a system devoid of binder distribution means.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Earth Drilling (AREA)
  • Pusher Or Impeller Conveyors (AREA)
EP21205345.8A 2020-11-24 2021-10-28 System zum ausheben von gräben und verlegen von länglichen gegenständen, insbesondere von rohren oder kabeln, unter verarbeitung des aushubmaterials Active EP4001515B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2012059A FR3116548B1 (fr) 2020-11-24 2020-11-24 Système de creusage de tranchées et de pose d’objets allongés, notamment de tubes ou de câbles, avec traitement des déblais

Publications (3)

Publication Number Publication Date
EP4001515A1 true EP4001515A1 (de) 2022-05-25
EP4001515B1 EP4001515B1 (de) 2023-07-05
EP4001515C0 EP4001515C0 (de) 2023-07-05

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EP21205345.8A Active EP4001515B1 (de) 2020-11-24 2021-10-28 System zum ausheben von gräben und verlegen von länglichen gegenständen, insbesondere von rohren oder kabeln, unter verarbeitung des aushubmaterials

Country Status (3)

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EP (1) EP4001515B1 (de)
ES (1) ES2955515T3 (de)
FR (2) FR3116548B1 (de)

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
CN116397709B (zh) * 2023-06-02 2023-08-04 泰兴一建建设集团有限公司 一种挖掘机械和防塌陷挖沟方法

Citations (4)

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US3332249A (en) * 1965-01-22 1967-07-25 Challenge Cook Bros Inc Trench digging and refilling apparatus
US20050108903A1 (en) * 2003-11-24 2005-05-26 Power Line Constructors, Inc. Mechanized unit for protectively encasing a utility in a trench with processed excavated trench material
DE102014105577A1 (de) 2014-04-17 2015-10-22 Novoter Ag Vorrichtung und Verfahren sowie Verlegeanlage zum Verlegen mindestens eines Stranges in einer Bodenfläche
EP3518361A1 (de) * 2011-01-26 2019-07-31 Husqvarna Ab Schichtmaschine und klingenanordnung dafür

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Publication number Priority date Publication date Assignee Title
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EP4001515B1 (de) 2023-07-05
FR3116548B1 (fr) 2023-01-06
FR3116549A1 (fr) 2022-05-27
FR3116548A1 (fr) 2022-05-27
FR3116549B1 (fr) 2022-10-14
EP4001515C0 (de) 2023-07-05
ES2955515T3 (es) 2023-12-04

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