EP3725955A1 - Benne à parois moulées et procédé de fabrication d'une mortaise dans le sol - Google Patents

Benne à parois moulées et procédé de fabrication d'une mortaise dans le sol Download PDF

Info

Publication number
EP3725955A1
EP3725955A1 EP19170103.6A EP19170103A EP3725955A1 EP 3725955 A1 EP3725955 A1 EP 3725955A1 EP 19170103 A EP19170103 A EP 19170103A EP 3725955 A1 EP3725955 A1 EP 3725955A1
Authority
EP
European Patent Office
Prior art keywords
gripper
grab
diaphragm wall
trench
slot
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.)
Withdrawn
Application number
EP19170103.6A
Other languages
German (de)
English (en)
Inventor
Johannes Sedlmeier
Stefan Roth
Jürgen Heilgemeir
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 EP19170103.6A priority Critical patent/EP3725955A1/fr
Priority to CN202010305237.6A priority patent/CN111827384A/zh
Publication of EP3725955A1 publication Critical patent/EP3725955A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/413—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device
    • E02F3/4133—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device grabs carried out as loaders or mounted on a tractor
    • 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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/413—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device
    • E02F3/4135—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device with grabs mounted directly on a boom
    • 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
    • E02F3/46—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor
    • E02F3/47—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor with grab buckets
    • E02F3/475—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor with grab buckets for making foundation slots
    • 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/26—Indicating devices
    • E02F9/264—Sensors and their calibration for indicating the position of the work tool
    • E02F9/265—Sensors and their calibration for indicating the position of the work tool with follow-up actions (e.g. control signals sent to actuate the work tool)

Definitions

  • the invention relates to a diaphragm wall grab for creating a slot in the ground, with a grab frame, a pair of grab shovels which are mounted on a lower end of the grab frame, a connecting device which is provided on an upper end of the grab frame for connecting to a holding element, guide elements which are arranged along the gripper frame between the gripper blades and the connecting device for guiding the trench wall grab along walls of the slot, and at least one measuring device for measuring a position of the trench wall grab in the slot, according to the preamble of claim 1.
  • the invention further relates to a method for creating a slot in the ground, with soil material being excavated by means of a pair of gripper blades which are mounted at a lower end of a gripper frame of a trench wall gripper, at the upper end of which a connecting device is provided for connecting to a holding element, and Guide elements are arranged along the gripper frame between the gripper blades and the connecting device for guiding the diaphragm wall gripper along walls of the slot, a position of the diaphragm wall gripper in the slot being measured by means of at least one measuring device, according to the preamble of claim 9.
  • a diaphragm wall grab of the generic type is based on, for example EP 0 690 943 B1 emerged.
  • a vertical position is continuously monitored by an inclination detector.
  • an inner body with the gripper blades can be adjusted relative to an outer body of the diaphragm wall grab.
  • a diaphragm wall grab is known in which a measuring cell for inclination measurement is arranged on the digging tools. The measured values determined can be saved and used to control the diaphragm wall grab.
  • Diaphragm wall grabs are used, in particular, to create support or sealing walls in the ground, which are required, for example, to support or seal a construction pit.
  • Such support or sealing walls are composed of individual slotted wall segments. It is necessary here that the individual diaphragm wall segments are created exactly next to one another, since otherwise defects can arise between adjacent diaphragm wall segments. In particular in the case of sealing walls, such imperfections can occur, for. B. lead to a groundwater ingress into a construction pit.
  • the invention is based on the object of specifying a diaphragm wall gripper and a method for creating a slot in the ground with which a slot can be created with a particularly precise position.
  • the trench wall grab according to the invention is characterized in that a rotation rate sensor is provided as the measuring device for determining a rotational position of the trench wall grab about a vertical axis z, that the measuring devices also include a first inclinometer and a second inclinometer with which an inclination is provided in a horizontal plane orthogonal to the vertical axis of the trench wall grab can be determined with respect to a first horizontal axis x or a second horizontal axis y, that at least some of the guide elements can be adjusted by means of actuators and that the measuring devices are connected to a control unit in which a target position of the trench wall grab is specified and which is designed to determine an actual position of the diaphragm wall grab based on the measurements of the measuring devices, to compare the actual position with the target position and to control the actuating elements of the guide elements in order to move the diaphragm wall grab into the predetermined position level target situation.
  • a rotation rate sensor is provided as the measuring device for determining a rotational position of the trench
  • an actual position of the trench wall grab in a slot in the ground is determined with particularly good accuracy by at least three measuring devices.
  • a rotation rate sensor is provided on the gripper frame to determine a rotational position of the trench wall grab about a vertical axis z. In this way, a rotational position of the diaphragm wall grab about a vertical axis can be reliably determined.
  • a first inclinometer and a second inclinometer are provided which determine an inclination of the trench wall grab with respect to a horizontal plane which is perpendicular to the vertical axis.
  • the first inclinometer measures an inclination with respect to a first horizontal axis x in the horizontal plane and the second inclinometer measures an inclination of the trench wall grab with respect to a second horizontal axis y in the horizontal plane.
  • both horizontal axes are perpendicular to each other and intersect in the vertical axis z.
  • This arrangement of measuring devices according to the invention allows an actual position of the diaphragm wall grab in the ground to be determined in an efficient manner.
  • a control unit can determine the actual position of the diaphragm wall grab and compare this with a specified target position. If deviations are detected by the control unit, these control elements can be controlled by guide elements until the actual position corresponds to the desired target position of the diaphragm wall grab.
  • the diaphragm wall grab can be controlled fully or partially automatically, resulting in an independent position control of the diaphragm wall grab.
  • the rotation rate sensor can be designed in any way.
  • the yaw rate sensor is designed as a gyro compass. This is particularly robust and allows high measurement accuracy.
  • the actuators can in principle be formed by any linear drives or motors. These can adjust or deflect the guide elements in whole or in part, in particular if the guide elements are hinged to one side in the manner of a flap.
  • the actuating elements are designed as hydraulic cylinders. In this way, particularly high actuating forces can also be applied.
  • the hydraulic cylinders are preferably hydraulic cylinders that act on both sides.
  • the guide elements have contact plates which can be retracted and extended by means of the actuating elements.
  • the contact plates are arranged on all four sides of a diaphragm wall grab.
  • several contact plates are arranged one above the other on each side above the gripper frame, which can be several meters high.
  • Each contact plate is assigned at least one control element, preferably several control elements.
  • a particularly good position control of the diaphragm wall grab is achieved according to a further development of the invention in that displacement measuring elements are provided with which a setting position of the guide elements can be determined.
  • the displacement measuring elements can be electrical, inductive, capacitive or magnetic measuring elements.
  • the invention further comprises a diaphragm wall gripping device with the diaphragm wall gripper according to the invention, a carrier device being provided on which the diaphragm wall gripper is mounted so as to be essentially vertically adjustable.
  • the carrier device is in particular a carrier vehicle, preferably with a crawler chassis.
  • the diaphragm wall gripper can be mounted on the carrier device by means of an actuating rod, in particular a telescopic rod.
  • actuating rod in particular a telescopic rod.
  • a cable winch is provided with a support cable, with which the diaphragm wall gripper is suspended vertically adjustable. In this way, a particularly compact and robust diaphragm wall gripping device can be implemented.
  • a further improvement of the position measurement of the diaphragm wall grab is achieved according to an embodiment variant of the invention in that a depth measuring device is provided with which a vertical position of the diaphragm wall grab in relation to the carrier device can be determined.
  • the depth measuring device can in particular be designed in such a way that a depth position of the trench wall grab is determined over the unwound cable length of the supporting cable.
  • the invention is characterized in that a rotary position of the trench wall grab about a vertical axis z is determined by means of a rotation rate sensor as a measuring device, that an inclination of the trench wall grab in a horizontal plane orthogonal to the vertical axis compared to a first horizontal axis x by means of a first inclinometer or a second Yaw rate sensor can be determined as a further measuring device or with respect to a second horizontal axis y by means of a second inclinometer or a third yaw rate sensor as a measuring device, and that the measuring devices are connected to a control unit in which a target position of the diaphragm wall grab is specified, the measurements being based on Measuring devices an actual position of the diaphragm wall grab is determined, the actual position is compared with the target position and the control unit controls the actuating elements of the guide elements to move the slot Bring the wall gripper into the specified target position.
  • the method according to the invention can in particular be carried out with the previously described diaphragm wall grab.
  • the advantages described above can be achieved.
  • An advantageous variant of the method of the invention consists in that the slot is filled with a suspension when it is created or afterwards, and that the suspension hardens in the slot and a slot wall segment is produced.
  • the method according to the invention can be used to produce a large number of slit wall segments lying next to one another, which together lie close to one another and form a supporting or sealing wall in the floor.
  • an excavation pit enclosure can be created in this way, which extends from a surface to a groundwater-blocking layer in the ground in order to secure an excavation pit against groundwater ingress, for example.
  • a trench wall gripping device 10 comprises a carrier device 12 with a trench wall grab 20 attached thereto.
  • the carrier device 12 has, in a basically known manner, a crawler chassis 11 and an upper carriage 13 rotatably mounted thereon.
  • An approximately vertically directed mast 14 with a mast head 15 is articulated on the superstructure 13.
  • the trench wall gripper 20 is attached to the carrier device 12 with the mast 14 in a vertically adjustable manner via a support cable 16.
  • Hydraulic energy is supplied via a supply line 18.
  • a supply line for electrical energy and for data transmission can also be provided.
  • the diaphragm wall grab 20 has a box-shaped grab frame 22.
  • a connecting device 40 is arranged on its upper side, to which one end of the support cable 16 with a holding element 42 is attached.
  • the gripper blades 24 are mounted at a lower end of the gripper frame 22.
  • Plate-shaped guide elements 26 for position control are adjustably mounted along the gripper frame 22.
  • Fig. 2 the structure of a trench wall grab 20 is shown in more detail.
  • an actuating device 30 for the lower gripper blades 24 is arranged in a central area of the scaffold-like structure of the gripper frame 22 in which an actuating device 30 for the lower gripper blades 24 is arranged.
  • the actuating device 30 comprises a hydraulically drivable actuating cylinder 32 in which a piston rod 34 is mounted such that it can be extended downwards.
  • the hydraulic actuating cylinder 32 is supplied with hydraulic energy from the carrier device 12 via the supply line 18.
  • a lower end of the piston rod 34 is articulated to a slide element 36 which is guided along the gripper frame 22 such that it can be moved linearly.
  • Two levers 38 are articulated on the slide element 36, each lever 38 being articulated to a gripper shovel 24.
  • the grab shovels 24 themselves are articulated at a lower end of the grab frame 22.
  • a diaphragm wall grab 20 according to the invention is shown with a total of four plate-shaped guide elements 26 on the broad sides.
  • Two guide elements 26 lying one above the other are arranged on each broad side.
  • the guide elements 26 are each pivotably linked to the gripper frame 22 via two pivot levers 29.
  • each plate-shaped guide element 26 is a Associated actuator 28, which is designed as a hydraulic cylinder.
  • Corresponding guide elements 26 can also be arranged on the narrow sides of the gripper frame 22.
  • the plate-shaped guide elements 26 are drawn in and lie close to the gripper frame 22 so that they do not protrude from an outer contour of the gripper frame 22, as illustrated in FIG Fig. 3 is shown.
  • the plate-shaped guide elements 26 can move from this retracted position according to FIG Fig. 3 can be adjusted to an extended control position, as illustrated in Fig. 4 is shown. In this extended control position, the guide elements 26 protrude from the contour of the gripper frame 22.
  • Fig. 4 the actuators 28 are extended evenly. These can, however, be extended in a differentiated manner by a control unit (not shown) so that the gripper frame 22 can be adjusted or tilted in a targeted manner relative to walls in a slot in the floor. As a result, an actual position of the diaphragm wall gripper 20 in the slot in the ground can be changed, the position of the diaphragm wall gripper 20 being controlled.
  • a rotation rate sensor is provided on the gripper frame 22 for determining a rotational position of the diaphragm wall gripper 20 about a vertical axis, which in the normal position of the diaphragm wall gripper 20 extends along from the gripper blades 24 to the upper connecting device 40 and is determined by the direction of gravity. Furthermore, a first inclinometer for determining an inclination of the trench wall grab 20 relative to a first horizontal axis and a second inclinometer for determining the inclination of the trench wall grab 20 relative to a second horizontal axis are provided. The first horizontal axis and the second horizontal axis span a horizontal plane which is perpendicular to the central vertical axis of the trench wall grab 20. The two horizontal axes are perpendicular to each other and intersect in the vertical axis.
  • an orientation of the trench wall grab 20 in space can be reliably determined. The so determined
  • Measurement data on the actual position of the diaphragm wall grab 20 are forwarded to a control unit (not shown).
  • the control unit can preferably be arranged on the carrier device 12.
  • the measured values determined by the measuring devices can be passed to the control unit via the supply line 18 or via a wireless connection.
  • the control unit can then make a statement about the actual position of the diaphragm wall grab 20 on the basis of the measured values obtained.
  • the information determined in this way can be communicated via a monitor to an operator in the upper structure 13 of the carrier device 12 or to a remote control center.
  • the values for the actual position of the diaphragm wall gripper 20 are compared with a predetermined target position.
  • one or more of the actuating elements 28 for adjusting the plate-shaped guide elements 26 can be actuated by the control unit.
  • the control unit can carry out this process continuously, so that the diaphragm wall gripper 20 is adjusted in the slot until the actual position corresponds to the desired target position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
EP19170103.6A 2019-04-18 2019-04-18 Benne à parois moulées et procédé de fabrication d'une mortaise dans le sol Withdrawn EP3725955A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19170103.6A EP3725955A1 (fr) 2019-04-18 2019-04-18 Benne à parois moulées et procédé de fabrication d'une mortaise dans le sol
CN202010305237.6A CN111827384A (zh) 2019-04-18 2020-04-17 用于在土地中生成槽的槽壁抓夹器和方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19170103.6A EP3725955A1 (fr) 2019-04-18 2019-04-18 Benne à parois moulées et procédé de fabrication d'une mortaise dans le sol

Publications (1)

Publication Number Publication Date
EP3725955A1 true EP3725955A1 (fr) 2020-10-21

Family

ID=66239821

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19170103.6A Withdrawn EP3725955A1 (fr) 2019-04-18 2019-04-18 Benne à parois moulées et procédé de fabrication d'une mortaise dans le sol

Country Status (2)

Country Link
EP (1) EP3725955A1 (fr)
CN (1) CN111827384A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4339379A1 (fr) * 2022-09-16 2024-03-20 Liebherr-Werk Nenzing GmbH Outil de travail doté d'une pince mécanique pour parois moulées et procédé de réalisation d'une étape de travail d'un tel outil

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05156882A (ja) * 1991-12-04 1993-06-22 Penta Ocean Constr Co Ltd 地下連続壁工法用掘削装置
EP0690943A1 (fr) 1993-03-23 1996-01-10 Leffer Stahl & App Procede et dispositif assurant l'exactitude de la verticalite de l'excavation d'une paroi continue en beton moulee dans le sol
EP0791690A1 (fr) * 1996-02-26 1997-08-27 SOILMEC S.p.A. Dispositif de réglage de l'inclinaison d'une tête d'excavatrice pour le creusement de murs enterrés
DE19806047A1 (de) 1997-02-14 1998-09-24 Porr Technobau Ag Verfahren zur Erfassung der Neigung von Grabungen
FR2785946A1 (fr) 1998-11-18 2000-05-19 Spie Fondations Procede et dispositif de localisation de forage, outil et unite de forage et forage
DE4335479C2 (de) 1992-11-06 2002-11-28 Porr Technobau Ag Verfahren zur Erfassung der Neigung von Grabungen sowie Meßsystem zur Durchführung des Verfahrens
JP2007327334A (ja) * 2007-08-21 2007-12-20 Ohbayashi Corp バケット式掘削機

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201649146U (zh) * 2009-10-27 2010-11-24 章瑞宇 一种连续墙液压抓斗的纠偏装置
CN109537662A (zh) * 2018-11-16 2019-03-29 上海中联重科桩工机械有限公司 连续墙抓斗前后纠偏装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05156882A (ja) * 1991-12-04 1993-06-22 Penta Ocean Constr Co Ltd 地下連続壁工法用掘削装置
DE4335479C2 (de) 1992-11-06 2002-11-28 Porr Technobau Ag Verfahren zur Erfassung der Neigung von Grabungen sowie Meßsystem zur Durchführung des Verfahrens
EP0690943A1 (fr) 1993-03-23 1996-01-10 Leffer Stahl & App Procede et dispositif assurant l'exactitude de la verticalite de l'excavation d'une paroi continue en beton moulee dans le sol
EP0791690A1 (fr) * 1996-02-26 1997-08-27 SOILMEC S.p.A. Dispositif de réglage de l'inclinaison d'une tête d'excavatrice pour le creusement de murs enterrés
DE19806047A1 (de) 1997-02-14 1998-09-24 Porr Technobau Ag Verfahren zur Erfassung der Neigung von Grabungen
FR2785946A1 (fr) 1998-11-18 2000-05-19 Spie Fondations Procede et dispositif de localisation de forage, outil et unite de forage et forage
JP2007327334A (ja) * 2007-08-21 2007-12-20 Ohbayashi Corp バケット式掘削機

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4339379A1 (fr) * 2022-09-16 2024-03-20 Liebherr-Werk Nenzing GmbH Outil de travail doté d'une pince mécanique pour parois moulées et procédé de réalisation d'une étape de travail d'un tel outil

Also Published As

Publication number Publication date
CN111827384A (zh) 2020-10-27

Similar Documents

Publication Publication Date Title
DE4309233C1 (de) Verfahren und Vorrichtung zum exakten Einhalten der vertikalen Aushubrichtung einer Schlitzwand
EP2623677B1 (fr) Procédé et agencement destinés à la fabrication d'un élément de paroi moulée
EP0903443B1 (fr) Appareil excavateur de creusement de tranchées pour barrettes d'étanchéité
EP2781682B1 (fr) Petite foreuse
DE69711969T2 (de) Vorrichtung zur Neigungsverstellung eines Baggerkopfes zum Herstellen von Schlitzwänden
DE102014118626A1 (de) Bohrgerät
EP3798367B1 (fr) Élément d'ancrage sur une tranchée, son procédé de fonctionnement et procédé de construction souterraine
AT398323B (de) Einrichtung zum rammen einer fundierung vorzugsweise für einen mast
DE2821113A1 (de) Verfahren und vorrichtung zur maschinellen einstellung der neigung einer gesteinsbohrvorrichtung
EP1291488A1 (fr) Foreuse pour réaliser des forages géotechniques
DE3608893C2 (de) Planiereinrichtung
EP3725955A1 (fr) Benne à parois moulées et procédé de fabrication d'une mortaise dans le sol
DE69520556T2 (de) Vorrichtung zur Detektion der Verschiebung sich bewegender Teile in industriellen Apparaten
DE2835270A1 (de) Strassenhobel mit einer aufhaengung fuer seine schneidvorrichtung
EP3725950B1 (fr) Benne de forage et procédé de fabrication d'une parois dans le sol
DE69821726T2 (de) Schlitzwandgreifer mit Korrektur der senkrechten Lage
EP3584370B1 (fr) Engin de chantier et procédé de fonctionnement d'un engin de chantier
DE2424486A1 (de) Baumaschine
EP2889431B1 (fr) Machine de travail pour le fonctionnement de benne racleuse
AT521423B1 (de) Tunnelinspektionsarbeitsvorrichtung
DE3334573C2 (de) Baufahrzeug zum Einbringen und/oder Herausziehen von Pfählen, Spundwänden, Pfahlgründungen o.dgl. in oder aus dem Erdreich oder zum Durchführen von Erdbohrungen
DE2747742A1 (de) Selbsttaetig verschiebbares arbeitsgeraet fuer einen traktor
EP4063568B1 (fr) Dispositif de mesure et dispositif d'enlèvement doté d'un dispositif de mesure
DE69807599T2 (de) Seilbetätigter Schlitzwandgreifer
DE19544073C2 (de) Fahrbares Abziehgerät

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20210422