EP4086390B1 - Engin de creusement et procédé de creuser une fente dans le sol - Google Patents

Engin de creusement et procédé de creuser une fente dans le sol Download PDF

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Publication number
EP4086390B1
EP4086390B1 EP21172503.1A EP21172503A EP4086390B1 EP 4086390 B1 EP4086390 B1 EP 4086390B1 EP 21172503 A EP21172503 A EP 21172503A EP 4086390 B1 EP4086390 B1 EP 4086390B1
Authority
EP
European Patent Office
Prior art keywords
suction
shut
milling
trench wall
wall cutter
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.)
Active
Application number
EP21172503.1A
Other languages
German (de)
English (en)
Other versions
EP4086390C0 (fr
EP4086390A1 (fr
Inventor
Ulli Wiedenmann
Stefan Roth
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.)
Bauer Maschinen GmbH
Original Assignee
Bauer Maschinen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bauer Maschinen GmbH filed Critical Bauer Maschinen GmbH
Priority to EP21172503.1A priority Critical patent/EP4086390B1/fr
Priority to CN202280032850.2A priority patent/CN117242224A/zh
Priority to PCT/EP2022/061174 priority patent/WO2022233672A1/fr
Priority to US18/559,308 priority patent/US20240240427A1/en
Publication of EP4086390A1 publication Critical patent/EP4086390A1/fr
Application granted granted Critical
Publication of EP4086390B1 publication Critical patent/EP4086390B1/fr
Publication of EP4086390C0 publication Critical patent/EP4086390C0/fr
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
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/20—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels
    • E02F3/205—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels with a pair of digging wheels, e.g. slotting machines
    • 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
    • E02D17/13—Foundation slots or slits; Implements for making these slots or slits
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/22—Component parts
    • E02F3/24—Digging wheels; Digging elements of wheels; Drives for wheels
    • E02F3/246—Digging wheels; Digging elements of wheels; Drives for wheels drives
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/902—Component parts, e.g. arrangement or adaptation of pumps for modifying the concentration of the dredged material, e.g. relief valves preventing the clogging of the suction pipe
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads
    • E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
    • E02F3/9225—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel with rotating cutting elements
    • E02F3/9237—Suction wheels with axis of rotation in transverse direction of the longitudinal axis of the suction pipe
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/004—Priming of not self-priming pumps
    • F04D9/005—Priming of not self-priming pumps by adducting or recycling liquid

Definitions

  • the invention relates to a trench cutter for cutting a trench slot in the ground, with a cutter frame, at least one rotatably driven cutter wheel which is mounted on an underside of the cutter frame, a suction nozzle which is arranged in the region of the at least one cutter wheel and is provided with at least one suction opening, and a suction pump which is designed to suck suspension out of the trench slot during milling via the suction nozzle, wherein the suction pump is connected to the suction nozzle via a suction line, according to the preamble of claim 1.
  • the invention further relates to a method for milling a milling slot in the ground with a trench wall milling machine, according to the preamble of claim 12.
  • Diaphragm wall cutters are used to create so-called diaphragm walls or sealing walls, which are required for securing or sealing excavations.
  • soil material is removed by rotating milling wheels and is sucked into the milling slot together with the surrounding support suspension or flushing liquid via a suction pump and transported to the surface.
  • the removed suspension or flushing liquid can be depleted of removed soil material in a processing plant above ground and the suspension or flushing liquid can be returned to the slot.
  • Such a diaphragm wall cutter and such a process are known, for example, from the DE 41 41 629 A1 or the EP 2 586 962 A1 known.
  • the suction pump For safe and long-lasting functionality of the suction pump, it is essential that the suction pump does not suck in air and therefore run dry or empty. This is particularly a problem at the start of milling when no or only a shallow slot is formed.
  • the invention is based on the object of specifying a trench wall milling machine and a method with which a milling slot in the ground can be created particularly efficiently.
  • the trench wall cutter according to the invention is characterized in that a shut-off device is provided with which the suction line can be shut off downwards to the milling slot, and that at least one filling connection is provided for filling the suction pump and the suction line with a liquid, in particular when the suction line is shut off.
  • a basic idea of the invention is to prevent the suction pump from running dry at the start of the milling process by filling the suction line, which extends between the at least one suction opening on the suction nozzle and the suction pump, with a liquid via a filling connection on the trench wall cutter.
  • the liquid is preferably water, but can also comprise a suspension within the meaning of the invention, i.e. a liquid mixed with solids or solid components or a binding agent.
  • the liquid can in particular correspond to the suspension to be sucked out of the milled slot.
  • the shut-off and filling of the suction line can in principle also be provided if the trench cutter is already inserted into a previously created pre-excavation or guide trench that is filled with liquid at the start of milling up to the suction pump or even in its entirety.
  • the trench cutter according to the invention also makes it possible to insert a trench cutter into only a relatively shallow guide trench filled with suspension, with only at least one suction opening of the suction nozzle being immersed in the suspension.
  • the shut-off device can then be released so that suspension is sucked in from the previously created guide trench via the suction line without air entering.
  • the trench cutter according to the invention can thus significantly reduce the effort required to create a guide trench, since only a relatively shallow guide trench or a basin filled with suspension is required around the milling point.
  • the shut-off device has a locking element which is adjustable between a shut-off position and a flow position.
  • the shut-off device is therefore a unit on the trench wall cutter, via which a locking element mounted on it can be adjusted.
  • the locking element can in particular be an adjusting bolt or a locking valve, which is arranged on the intake port or a suction channel between the intake port and the intake pump.
  • the blocking element in principle, manual operation of the shut-off device can be provided.
  • the blocking element it is particularly expedient for the blocking element to be adjustable, in particular displaceable or pivotable, with an actuator between the shut-off position and the flow position.
  • a hydraulic, pneumatic or electric actuator for adjusting a latch or an electrically actuated check valve can be provided.
  • several locking elements can also be provided.
  • the actuator of the shut-off device can be operated by an operator or automatically by a control unit when the milling machine starts up.
  • the blocking element can be arranged at any suitable position to ensure that the suction pump and the upstream suction line are sufficiently filled with suspension.
  • a particularly advantageous embodiment of the invention consists in that the blocking element is arranged on the suction nozzle or on the suction line.
  • the shut-off device has at least one closure cover, which can be released when the suction pump starts up.
  • the closure cover can be easily placed manually onto the at least one suction opening on the suction port.
  • the sealing cover can then be sucked off using the suction pressure alone, thus opening the suction opening.
  • a closure cover is detachably attached to each suction opening of the suction port. This design eliminates the need for a complex control device.
  • the area up to the intake port can also be filled with liquid.
  • the at least one closure cap on the intake port can be held on the intake port by a bracket, a chain or a rope, so that the closure cap can detach from the suction opening but is not lost. Before a new milling process, the at least one closure cover can be brought back into the closed position.
  • a particularly simple embodiment of the invention consists in that the at least one closure cover is designed as a disposable element which can be removed by suction when the suction pump is started up.
  • the closure cover can be recovered when the suspension is circulated in a processing plant with a corresponding sieve or filter device.
  • the closure lid can basically be made of any suitable material, in particular a plastic, a rubber material or a metal. According to an embodiment variant of the invention, it is particularly advantageous that the closure lid is formed with a degradable material, in particular a biopolymer plastic. A wood material can also be used. The closure cap can thus remain in the suspension without affecting the environment. A ceramic material can also preferably be provided. A ceramic lid can break during removal and behave like rock material, i.e. H. There is no risk of the suction line becoming blocked. In addition, ceramic material is environmentally friendly.
  • any opening to the suction pump, suction line or suction nozzle can be used as a filling connection.
  • the filling connection is arranged on, above or directly below the suction pump. It can be easily filled from above.
  • the filling connection ensures that after the lower line section up to the suction pump has been shut off, it can be filled with suspension.
  • the filling connection is arranged in such a way that air is largely completely displaced by the filled suspension via this or a corresponding vent valve.
  • a filling connection above the suction pump also ensures that the suction pump is completely filled with liquid at the start of milling and can therefore reliably suck in the rinsing liquid or suspension.
  • a filling nozzle for manual filling can be provided on the filling connection.
  • the filling connection is designed for the detachable attachment of a hose line and preferably has a check valve.
  • the filling connection can preferably have a quick coupling system or a thread for attaching a hose line in a standard hose size.
  • a check valve on the filling connection ensures that no suspension escapes from the filling connection when the hose line is removed and during further operation of the trench wall cutter.
  • a display device which indicates a filling state of the suction pump.
  • one or more sensors can be provided on the suction pump and/or on a suction channel and/or on the suction nozzle. These are connected to the display device of a control unit, preferably in the operator's cabin of an associated carrier device for the trench wall cutter. This ensures that there is actually no or hardly any air in the area of the suction pump when milling begins.
  • the control unit can be designed in such a way that if insufficient filling is detected, milling and suction are blocked.
  • the control unit can also control the course of further milling in such a way that, in the case of an adjustable locking element, this is opened immediately when the suction pump starts up or shortly thereafter in order to ensure continuous suction of liquid via the suction nozzle.
  • the invention further comprises a method for milling a milling slot in the ground with such a trench wall cutter, wherein the method is characterized in that before milling begins, the suction line down to the milling slot is shut off by means of the shut-off device and that the suction pump and the suction line are filled with a liquid via the filling connection when the suction line is shut off.
  • the method can be carried out in particular with the trench cutter described above, whereby the advantages described above can be achieved.
  • a particularly preferred method variant of the invention consists in creating a guide trench which is filled with suspension and in inserting the trench cutter into the guide trench for milling, with milling starting before the suction pump is completely submerged in the suspension.
  • the guide trench is designed with such a depth that at least the intake nozzle with the at least one intake opening is submerged in the suspension in the guide trench.
  • An inflow to the guide trench can ensure that there is a sufficient inflow of suspension into the guide trench.
  • the inflow can be connected to a suspension circuit through which suspension sucked in by the trench cutter is fed back into a processing plant in sufficient quantities, possibly with a suspension supplement, to fill the enlarging trench cutter slot after any necessary depletion of milled soil material.
  • the shut-off device must be opened at a suitable time depending on the process sequence in order to ensure an uninterrupted suction flow of suspension through the suction pump.
  • a separate filling pump in particular a self-priming pump or a vacuum pump, can also be arranged at the filling connection. This allows the suction line to be filled via the suction openings when the shut-off device is open.
  • the filling pump can be switched off when the suction pumps are in operation.
  • a particularly efficient method variant results from the shut-off device being opened when the suction pump has built up a speed required for suction or a negative pressure required for suction.
  • a trench wall cutter 20 according to the invention has a cutting frame 22, on the underside of which rotatably mounted and driven lower cutting wheels 24 are arranged for removing soil material.
  • the preferably box-shaped milling frame 22 can be suspended from a carrier device (not shown) via a support cable or guided over a guide rod.
  • the trench wall cutter 20 is provided on the milling frame 22 with a suction pump 30, which is arranged above the lower milling wheels 24.
  • Milled soil material can be sucked in together with the surrounding suspension 16 during milling via a suction line 28 and a suction port 26, which is positioned centrally between the two pairs of milling wheels 24.
  • the intake port 26 is included here Fig. 1 Suction openings, not shown.
  • the suspension 16 can be a liquid, in particular water, preferably a milling suspension provided with a binder, which enriches with milled soil material during milling.
  • a shut-off device 40 with a plate-shaped blocking element 42 is arranged at the lower end of the suction line 28 towards the suction port 26.
  • the blocking element 42 designed as a slide is in an opening or flow position.
  • the locking element 42 can be moved by an actuator, not shown, into a shut-off position in which the locking element 42 seals off the intake line 28 downwards towards the intake port 26 and which in Fig. 2 is shown.
  • liquid can be introduced into the suction pump 30 and the suction line 28 when the suction line 28 is shut off, as clearly shown in Fig. 2 shown.
  • Filling can be carried out in a simple manner via a water pipe hose, which is detachably connected to the filling connection 50.
  • liquid in particular water or suspension 16
  • the milling slot 14 to be created is in Fig. 2 shown with a dashed line.
  • a shallow guide trench 18 is first created in the ground 12.
  • the guide trench 18 is designed so that its depth corresponds approximately to the diameter of the milling wheels 24.
  • the guide trench 18 can be created using a separate piece of construction equipment, such as an excavator.
  • the guide or guide trench 18 is filled with suspension 16.
  • the trench wall cutter 20 is with its lower part inserted into the guide trench 18 before the start of milling, the suction port 26 and preferably also the shut-off device 40 with the locking element 42 being immersed in the suspension 16 in the shut-off position, as clearly shown in Fig. 3 is shown.
  • a cavity within the intake port 26 can be filled with suspension 16 from the guide trench 18, with air in the intake port 26 being largely displaced by the suspension 16.
  • the shut-off device 40 can be actuated so that the locking element 42 is reset from the shut-off position back into the opening or flow position.
  • the suction pump 30 can be put into operation, so that this suspension 16 is sucked in from the milling slot 14 that is being formed together with milled ground material and discharged upwards via an upper discharge line 32.
  • the suction pump 30 is started. If a necessary negative pressure occurs from a certain speed of the suction pump 30, the shut-off device 40 can be opened. Once constant fluid circulation has been achieved, milling operation can be started.
  • the trench wall milling machine 20 can now be sunk in this position until the desired final depth of the milling slot 14 is reached.
  • the locking element 42 can be returned to the shut-off position, so that the trench wall cutter 30 can then be inserted into a guide trench to create a further milling slot after being withdrawn from the milling slot 14 to a new milling point can.
  • the existing suction openings 27 on the intake port 26, which preferably have a circular diameter, can each be closed with a closure cover 44, preferably made of a rubber material, as in Fig. 5 shown.
  • a closure cover 44 preferably made of a rubber material
  • an interior space or cavity of the approximately wedge-shaped intake port 26 can also be filled with liquid before milling begins be filled. This means that there is practically no air left in the area of the suction pump 30, the suction line 28 and the suction port 26. This allows the suction pump 30 to be operated particularly gently.
  • the suction pressure is adjusted so that the closure caps 44 are released from the suction openings 27 and are sucked out together with the suspension 16.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Claims (15)

1. Fraise à parois moulées pour le fraisage d'une fente (14) dans le sol (12), comprenant
- un cadre de fraisage (22),
- au moins une roue de fraisage (24) entraînée en rotation, qui est montée sur une face inférieure du cadre de fraisage (22),
- un raccord d'aspiration (26) disposé dans la zone de la ou des roues de fraisage (24) et pourvu d'au moins une ouverture d'aspiration (27), et
- une pompe d'aspiration (30) conçue pour aspirer la suspension (16) du fraisage de la fente (14) à travers le raccord d'aspiration (26) lors du fraisage, la pompe d'aspiration (30) étant reliée au raccord d'aspiration (26) par une conduite d'aspiration (28),
caractérisée en ce que
- un dispositif d'obturation (40) est prévu pour fermer la conduite d'aspiration (28) vers le bas, vers la fente de fraisage (14), et
- au moins un raccord de remplissage (50) est prévu pour remplir la pompe d'aspiration (30) et la conduite d'aspiration (28) avec un liquide, en particulier lorsque la conduite d'aspiration est fermée.
Fraise à parois moulées selon la revendication 1,
caractérisée en ce que
le dispositif d'obturation (40) comprend un élément d'obturation (42) qui est monté de manière réglable entre une position d'obturation et une position de passage du flux.
Fraise à parois moulées selon la revendication 2,
caractérisée en ce que
l'élément d'obturation (42) est réglable, en particulier de manière coulissante ou pivotante, par un actionneur de commande entre la position d'obturation et la position de passage du flux.
Fraise à parois moulées selon la revendication 2 ou 3,
caractérisée en ce que
l'élément d'obturation (42) est disposé sur le raccord d'aspiration (26) ou sur la conduite d'aspiration (28).
Fraise à parois moulées selon l'une quelconque des revendications 1 à 4,
caractérisée en ce que
le dispositif d'obturation (40) comprend au moins un capuchon de fermeture (44) qui peut être libéré lors du démarrage de la pompe d'aspiration (30).
Fraise à parois moulées selon l'une quelconque des revendications 1 à 5,
caractérisée en ce que
un capuchon de fermeture (44) amovible est fixé de manière libérable à chaque ouverture d'aspiration (27) du raccord d'aspiration (26).
Fraise à parois moulées selon la revendication 5 ou 6,
caractérisée en ce que
ledit au moins un capuchon de fermeture (44) est réalisé en tant qu'élément unidirectionnel qui peut être détaché par aspiration lors du démarrage de la pompe d'aspiration (30).
Fraise à parois moulées selon l'une quelconque des revendications 5 à 8,
caractérisée en ce que
le capuchon de fermeture (44) est fabriqué à partir d'un matériau dégradable, en particulier d'un plastique biopolymère.
Fraise à parois moulées selon l'une quelconque des revendications 1 à 8,
caractérisée en ce que
le raccord de remplissage (50) est disposé sous, sur ou au-dessus de la pompe d'aspiration (30).
Fraise à parois moulées selon l'une quelconque des revendications 1 à 9,
caractérisée en ce que
le raccord de remplissage (50) est conçu pour fixer de manière libérable un tuyau flexible et comprend de préférence une soupape de retenue.
Fraise à parois moulées selon l'une quelconque des revendications 1 à 10,
caractérisée en ce que
un dispositif d'affichage est prévu pour indiquer l'état de remplissage de la pompe d'aspiration (30).
Procédé de fraisage d'une fente (14) dans le sol (12) à l'aide d'une fraise à parois moulées selon l'une quelconque des revendications 1 à 11,
caractérisé en ce que
- avant le début du fraisage, la conduite d'aspiration (28) est fermée vers le bas, vers la fente de fraisage (14), au moyen du dispositif d'obturation (40) et
- la pompe d'aspiration (30) et la conduite d'aspiration (28) sont remplies d'un liquide par le biais du raccord de remplissage (50) lorsque la conduite d'aspiration (28) est fermée.
Procédé selon la revendication 12,
caractérisé en ce que
une tranchée de guidage (18) est créée, qui est remplie d'une suspension (16), et la fraise à parois moulées (20) est introduite dans la tranchée de guidage (18) pour le fraisage, le fraisage commençant avant que la pompe d'aspiration (30) ne soit complètement immergée dans la suspension (16).
Procédé selon la revendication 12 ou 13,
caractérisé en ce que
le dispositif d'obturation (40) est ouvert lorsqu'il est immergé dans la suspension (16).
Procédé selon l'une quelconque des revendications 12 à 14,
caractérisé en ce que
le dispositif d'obturation (40) est ouvert lorsque la pompe d'aspiration (30) atteint une vitesse de rotation ou une dépression nécessaire à l'aspiration.
EP21172503.1A 2021-05-06 2021-05-06 Engin de creusement et procédé de creuser une fente dans le sol Active EP4086390B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP21172503.1A EP4086390B1 (fr) 2021-05-06 2021-05-06 Engin de creusement et procédé de creuser une fente dans le sol
CN202280032850.2A CN117242224A (zh) 2021-05-06 2022-04-27 用于在土地中铣削铣槽的槽壁铣削机和方法
PCT/EP2022/061174 WO2022233672A1 (fr) 2021-05-06 2022-04-27 Dispositif de coupe de paroi moulée et procédé de découpe d'une fente dans le sol
US18/559,308 US20240240427A1 (en) 2021-05-06 2022-04-27 Diaphragm wall cutter and method for cutting a cutting trench in the ground

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21172503.1A EP4086390B1 (fr) 2021-05-06 2021-05-06 Engin de creusement et procédé de creuser une fente dans le sol

Publications (3)

Publication Number Publication Date
EP4086390A1 EP4086390A1 (fr) 2022-11-09
EP4086390B1 true EP4086390B1 (fr) 2024-04-03
EP4086390C0 EP4086390C0 (fr) 2024-04-03

Family

ID=75825679

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21172503.1A Active EP4086390B1 (fr) 2021-05-06 2021-05-06 Engin de creusement et procédé de creuser une fente dans le sol

Country Status (4)

Country Link
US (1) US20240240427A1 (fr)
EP (1) EP4086390B1 (fr)
CN (1) CN117242224A (fr)
WO (1) WO2022233672A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2600119B1 (fr) * 1986-06-11 1988-08-26 Soletanche Motopompe pour engin de fraisage destine a creuser des tranchees dans le sol
FR2602635B1 (fr) * 1986-07-28 1989-08-25 Crms Sarl Dispositif de remplissage et de vidage d'une tonne a lisier ou analogue
DE4141629C2 (de) 1991-12-17 1997-02-20 Bauer Spezialtiefbau Verfahren zur Herstellung von Dichtwänden
DE50007205D1 (de) * 2000-05-23 2004-09-02 Vakutec Guelletechnik Gmbh Nus Pumpenaggregat
FR2950086B1 (fr) * 2009-09-15 2021-05-14 Soletanche Freyssinet Machine d'excavation comportant au moins un tambour couvert par un deflecteur
ITTO20110961A1 (it) 2011-10-24 2013-04-25 Soilmec Spa Sistema per la evacuazione di fanghi di scavo.
EP3556942B1 (fr) 2018-04-18 2020-04-29 BAUER Maschinen GmbH Foreuse pour faire une mur de diaphragma et procedé pour faire une mur de diaphragma

Also Published As

Publication number Publication date
WO2022233672A1 (fr) 2022-11-10
EP4086390C0 (fr) 2024-04-03
CN117242224A (zh) 2023-12-15
EP4086390A1 (fr) 2022-11-09
US20240240427A1 (en) 2024-07-18

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