EP3683361B1 - Modulare schlitzwandfräse - Google Patents

Modulare schlitzwandfräse Download PDF

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Publication number
EP3683361B1
EP3683361B1 EP20150513.8A EP20150513A EP3683361B1 EP 3683361 B1 EP3683361 B1 EP 3683361B1 EP 20150513 A EP20150513 A EP 20150513A EP 3683361 B1 EP3683361 B1 EP 3683361B1
Authority
EP
European Patent Office
Prior art keywords
frame part
slurry wall
cutter
accordance
parts
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
EP20150513.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3683361A1 (de
Inventor
Johannes Rhomberg
Florian Gabriel
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.)
Liebherr Werk Nenzing GmbH
Original Assignee
Liebherr Werk Nenzing 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 Liebherr Werk Nenzing GmbH filed Critical Liebherr Werk Nenzing GmbH
Publication of EP3683361A1 publication Critical patent/EP3683361A1/de
Application granted granted Critical
Publication of EP3683361B1 publication Critical patent/EP3683361B1/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
    • 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
    • E02F3/241—Digging wheels; Digging elements of wheels; Drives for wheels digging wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • 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
    • E02F3/188—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with the axis being horizontal and transverse to the direction of travel
    • 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
    • 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
    • E02F3/52—Cableway excavators
    • 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
    • E02F3/58—Component parts
    • 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
    • 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
    • E02F5/04—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/03—Cranes with arms or jibs; Multiple cranes
    • 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
    • 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
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0808—Improving mounting or assembling, e.g. frame elements, disposition of all the components on the superstructures

Definitions

  • the present invention relates to a trench wall cutter for producing a soil trench, which can be connected to a carrier device, with a frame and at least one milling tool arranged on the frame for crushing soil material.
  • the invention also relates to a carrier device, in particular a cable excavator, with a trench wall cutter according to the invention and a method for assembling a trench wall cutter of a trench wall cutter system.
  • Diaphragm wall cutters are used to create trenches in the ground for the construction of diaphragm walls and come in a wide variety of designs and sizes. Such devices are known, inter alia, from the publication JPH 07 238 550 A.
  • Trench cutters are usually mounted on mobile carrier equipment such as mobile cranes or cable excavators.
  • mobile carrier equipment such as mobile cranes or cable excavators.
  • These requirements may include, for example, size limitations on the trench cutter and carrier due to limited workspace. For this reason, in environments with limited working space, so-called compact trench cutters are typically used, which have a lower height and are often also mounted on smaller carrier devices.
  • a compact trench cutter comprises all the elementary basic functions and components of a conventional trench cutter while at the same time having a smaller overall geometry.
  • the height of the compact trench cutter is usually significantly lower in order to enable insertion into the ground trench at a lower working height of the entire system.
  • a disadvantage of such compact trench cutters is reduced stability in the soil trench, which is why they are normally only used when a standard trench cutter cannot be used.
  • trench wall cutters and carrier devices of different sizes are required.
  • different trench wall cutters and possibly even different carrier devices must be used. It should be noted that each trench wall cutter is a very expensive purchase.
  • the object of the present invention is to provide a trench wall cutter which enables use under different working conditions with different requirements in terms of the working height.
  • the trench wall cutter comprises a frame and at least one milling tool arranged on the frame for crushing soil material.
  • the frame comprises an upper, a middle and a lower frame part, which can be detachably connected to one another, the upper and lower frame parts being detachably connected to one another both directly and via the middle frame part that can be arranged or mounted in between.
  • the present invention makes it possible to cover at least two different areas of application with just one modular trench cutter. This is accomplished through a conversion process from a longer standard mid-frame trench cutter to a shorter, mid-frame compact trench cutter accomplished.
  • the modularity is based on dividing the frame of the trench cutter into three parts, which are compatible with one another and can be detachably connected to one another.
  • the trench wall cutter can thus be adapted to the respective requirements. As a result, it is no longer necessary to use separate trench wall cutters with different overall heights or lengths for the respective work assignments, which brings an enormous cost advantage.
  • a standard trench wall cutter assembly with a built-in middle frame part can be used, since the longer design has better properties in terms of stability within the soil trench. If space is limited, the middle frame section can be removed, resulting in a shorter compact trench cutter assembly. In this case, it may only be necessary to adapt subordinate components such as hose lines running in the middle part of the frame, etc., which represents a comparatively small effort.
  • Claim 9 presents a method for assembling a trench cutter of an inventive trench cutter system.
  • the at least one milling tool is arranged on the lower frame part, wherein preferably at least one drive unit is provided, by means of which the at least one milling tool can be driven, and which is also arranged on the lower frame part.
  • the milling tool is in particular a milling wheel, with several milling wheels preferably being provided, which are arranged next to one another and can be rotated in opposite directions.
  • the upper frame part comprises an electronic control unit and/or that the lower frame part has a suction opening and a feed pump connected thereto for conveying excavation produced by the at least one milling tool or with an excavation introduced into the floor slot Suspension mixed excavated material.
  • the trench wall cutter can be operated both with and without a built-in central frame part.
  • the components of the trench wall cutter that are essential for the milling function can be accommodated in the lower frame part, such as the drives for the milling tools, a feed pump, etc.
  • the upper frame part further functions or components of the trench wall cutter, such as a control system, can be accommodated.
  • the middle frame part does not contain any components that are absolutely necessary for the operation of the trench wall cutter according to the invention, but merely represents a transition part that extends the overall length of the trench wall cutter. Only the frame itself and, if necessary, the upper and lower frame parts connecting through lines are provided here.
  • the trench wall cutter comprises at least one through-line running between the upper and lower frame part.
  • the through-line can be, for example, a conveying hose for conveying excavation produced by the at least one milling tool, a supply line for conducting e.g. hydraulic oil, a suspension solution or concrete to the lower frame part, or an electrical cable.
  • a conveying hose for conveying excavation produced by the at least one milling tool
  • a supply line for conducting e.g. hydraulic oil, a suspension solution or concrete to the lower frame part
  • an electrical cable for example a conveying hose, a supply line and an electrical line.
  • the at least one through line comprises three separate parts, which are each arranged on the lower, middle and upper frame part and can be releasably connected to one another by compatible connections.
  • the one or more through-pipes can also be separated so that the through-pipe parts in the area of the upper and lower frame parts can be reconnected to one another using the compatible connectors and are ready for operation of the compact trench cutter.
  • the parts of the through lines which are assigned to the central frame part are therefore removed or installed with it.
  • the top and bottom frame portions are disconnected from one another, as are the corresponding portions of the one or more feedthroughs.
  • the parts of the through lines are connected to each other using the compatible connectors.
  • Lengthening or shortening of the trench wall cutter is accompanied by a corresponding lengthening or shortening of the at least one through line.
  • the compatible connections are adapted to the respective existing types of through lines (e.g. conveying hose, supply line or electric cable) and can therefore represent electrical, hydraulic or other suitable connections or couplings.
  • two interchangeable through lines are provided with different lengths, wherein the shorter through line can be releasably connected to the trench wall cutter with the central frame part removed and the longer through line can be releasably connected to the trench wall cutter with the central frame part installed.
  • the entire at least one through line is exchanged during a conversion.
  • a suitably dimensioned, shorter through-line is required, and in the case of a structure with built-in middle frame part (standard trench wall cutter) installed a correspondingly longer through-line.
  • corresponding connections must also be provided on the components connected to the corresponding through lines (e.g. feed pump, controller, hydraulic motor, etc.) for detachable connection to the through lines so that they can be easily removed or installed.
  • Appropriate connections must also be available to connect the through lines to the lines of the carrier device.
  • the trench wall cutter according to the invention can have more than just two different lengths (in particular when using more than one removable central frame part), a corresponding number of through lines with different lengths must of course be present.
  • the frame parts have connecting means for producing a detachable connection, the connecting means of the lower and the upper frame part being compatible both with one another and with the connecting means of the central frame part.
  • the connecting means comprise both mechanical connecting elements for establishing a mechanical detachable connection of the frame parts and connections for detachable coupling of the parts of the through line, with the connecting means preferably being designed as a quick coupling for the simultaneous connection of the frame parts and the parts of the through line are.
  • the mechanical and other (e.g. hydraulic, electrical, etc.) connections do not have to be separated separately or made, but the connection is made quickly and easily via a multi-coupling, which also forms the mechanical connection.
  • the present invention also relates to a carrier device with a trench cutter according to the invention.
  • the carrier device is in particular a mobile crane or cable excavator. This obviously results in the same advantages and properties as for the trench wall cutter according to the invention, which is why a repeated description is dispensed with at this point.
  • the trench wall cutter 10 comprises a frame which comprises three individual frame parts, namely an upper 12, a middle 14 and a lower 16 frame part.
  • a plurality of milling tools 18 designed as milling wheels are arranged on the lower frame part 16, by means of which the bottom slot is created.
  • the soil material of the subsoil is broken up by the rotation of the cutting wheels 18 .
  • Also arranged on the lower frame part 16 are the drive units of the cutting wheels 18 (not shown), which are supplied via corresponding supply lines which run from the upper 12 to the lower 16 frame part.
  • the lower frame part 16 can also include a suction opening (not shown) to which a feed pump (not shown) embodied as a centrifugal pump, for example, is connected.
  • a conveying hose (not shown) is connected to this in turn, via which the crushed soil material sucked in by the pump from the suction opening (possibly together with a suspension introduced into the soil slot via a supply line) is conveyed out of the soil slot.
  • hydraulic lines and/or electrical cables can run along the trench wall cutter 10 .
  • These aforementioned cables, hoses and lines (as well as other lines not explicitly listed here) are collectively referred to here as through line(s).
  • These through lines run along the trench wall cutter between the upper 12 and lower 16 frame part, i.e. (if installed) also via the middle frame part 14.
  • the upper frame part 12 can have a connection point for mounting the trench wall cutter 10 on a carrier device. There may also be connection points for connecting the through lines to the corresponding lines of the carrier device (e.g. for the energy supply or the removal of the crushed soil material).
  • the trench wall cutter 10 has a modular structure, with the individual frame parts 12, 14, 16 being able to be connected to one another in a compatible manner.
  • the upper and lower frame parts 12, 16 can be connected to one another via the middle frame part 14 in order together to form a longer standard trench cutter 10 ( figure 1 ).
  • the center frame member 14 may be removed so that the upper and lower frame members 12, 16 are connected directly to one another to form a shorter compact trench cutter 10.
  • This structure is in the figure 2 shown.
  • the frame parts 12, 14, 16 have corresponding compatible connections (not shown), which allow conversion by inserting or removing the central frame part 14.
  • the three frame parts 12, 14, 16 of the trench cutter 10 can either be used together as a longer standard trench cutter (see figure 1 ) or without the middle frame part 14 as a shorter compact trench cutter (see figure 2 ) to be assembled.
  • the components are compatible, which is why the existing frame parts 12, 14, 16 are suitable for both variants. Only subordinate components such as through lines have to be individually adjusted or replaced.
  • the modularity thus enables the option of setting two sizes of the trench wall cutter 10 by means of a conversion or conversion process.
  • the through lines running between the upper and lower frame parts 12, 16 must also be converted or replaced. This can be done, for example, by providing different lengths of transit line for use in different configurations of trench cutter 10 (i.e., shorter transit lines for a shorter compact trench cutter configuration).
  • corresponding connections for the different through lines can be provided, so that, for example, when the middle frame part 14 is removed, the corresponding through lines are also removed and the connections of the through lines of the upper and lower ones Frame parts 12, 16 are connected directly to each other to close the respective lines or circuits.
  • the middle frame part 14 does not include any components that are absolutely necessary for the operation of the trench wall cutter 10 . Thus, it can be properly operated both with and without the middle frame part 14. the latter represents only a transition part for adjusting the length of the trench wall cutter 10 according to the invention and has no other essential function for the cutting operation.
  • middle frame parts 14 can all be constructed identically or have different lengths in order to be able to set the overall length of the trench wall cutter 10 more precisely.
  • the properties and advantages of the trench wall cutter 10 described above also apply to an embodiment with several (identical or different) middle frame parts 14.
  • FIG. 3 a carrier device designed as a cable excavator with a trench wall cutter 10 according to the invention is shown in a side view as an example.
  • the figure 3 10 shows a complete structure of the trench wall cutter 10 with the middle frame part 14 installed. This longer structure represents a standard trench wall cutter 10 with optimal stability properties, as is usually used when there is sufficient space.
  • the figure 4 FIG. 14, shows a structure in which the middle frame part 14 has been removed in order to obtain a shorter compact trench cutter 14. FIG. This can be used, for example, in tight spaces.
  • the same carrier device and the same components of the trench wall cutter 10 can be used for this.
  • a contractor wants to get into the trench cutter business. Due to the high variability of the incoming orders, a single standard trench cutter is not sufficient to cover all areas of application. Since the budget is limited, purchasing two different trench cutters is not an option. In addition, he does not want to buy a second trench wall cutter that could only be used for special areas of application.
  • the modular trench wall cutter 10 can be converted from the longer standard version to the shorter compact version and thus cover different areas of application.
  • the compact version of the modular trench cutter 10 is also compatible with "smaller" carrier devices. Due to the high compatibility of the modular trench wall cutter 10, this can in turn bring advantages for further purchases.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP20150513.8A 2019-01-18 2020-01-07 Modulare schlitzwandfräse Active EP3683361B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019101305.4A DE102019101305A1 (de) 2019-01-18 2019-01-18 Modulare Schlitzwandfräse

Publications (2)

Publication Number Publication Date
EP3683361A1 EP3683361A1 (de) 2020-07-22
EP3683361B1 true EP3683361B1 (de) 2023-03-01

Family

ID=69143466

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20150513.8A Active EP3683361B1 (de) 2019-01-18 2020-01-07 Modulare schlitzwandfräse

Country Status (4)

Country Link
US (1) US11619023B2 (zh)
EP (1) EP3683361B1 (zh)
CN (1) CN111501784A (zh)
DE (1) DE102019101305A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112095700B (zh) * 2020-09-18 2022-09-09 江苏科弘岩土工程有限公司 一种具有摆刀单元的双轮铣槽机铣头装置
EP4053342B1 (de) * 2021-03-01 2023-10-11 BAUER Maschinen GmbH Schlitzwandfräsvorrichtung und verfahren zum fräsen eines frässchlitzes im boden
DE102021114945A1 (de) 2021-06-10 2022-12-15 Liebherr-Werk Nenzing Gmbh Schlitzwandfräse

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JPH026746U (zh) 1988-06-29 1990-01-17
DE3911624A1 (de) 1989-04-09 1990-10-11 Delmag Maschinenfabrik Schlitzwandfraese
JPH07238550A (ja) 1994-02-28 1995-09-12 Nisshin Shoji Kk 連続掘削機
FR2856088B1 (fr) * 2003-06-11 2005-09-09 Cie Du Sol Outil de fraisage pour la realisation de tranchees, permettant un changement rapide de la tete de coupe
FR2904338B1 (fr) 2006-07-28 2011-03-04 Cie Du Sol Tete de coupe pour machine d'excavation
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EP2251491B1 (de) * 2009-05-15 2011-08-03 BAUER Maschinen GmbH Fräsvorrichtung und Verfahren zum Abtragen von Bodenmaterial
ITTO20110832A1 (it) * 2011-09-16 2013-03-17 Soilmec Spa Dispositivo di supporto e guida per linee di alimentazione per dispositivi di scavo.
CN103770224B (zh) * 2014-01-29 2016-06-01 徐工集团工程机械股份有限公司 一种双轮铣槽机的进给装置及双轮铣槽机
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FR3039851B1 (fr) * 2015-08-05 2021-12-10 Soletanche Freyssinet Outil d'excavation par impulsions electriques
FR3041022B1 (fr) * 2015-09-10 2017-09-29 Soletanche Freyssinet Machine de forage ancrable munie d'un module de forage articule et mobile en translation
FR3041023B1 (fr) 2015-09-10 2017-09-29 Soletanche Freyssinet Machine de forage comprenant un amortisseur
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CN206128158U (zh) * 2016-10-08 2017-04-26 周德吉 一种地下连续墙施工设备
CN106638743B (zh) * 2016-12-07 2019-03-19 天津市津勘岩土工程股份有限公司 双轮铣槽装置以及双轮铣槽机
EP3401444B1 (de) * 2017-05-11 2019-11-27 BAUER Maschinen GmbH Schlitzwandgerät und verfahren zum erstellen eines schlitzes im boden
FR3083819B1 (fr) * 2018-07-13 2020-11-27 Soletanche Freyssinet Kit d'ancrage pour machine de forage

Also Published As

Publication number Publication date
CN111501784A (zh) 2020-08-07
US11619023B2 (en) 2023-04-04
DE102019101305A1 (de) 2020-07-23
EP3683361A1 (de) 2020-07-22
US20200232183A1 (en) 2020-07-23

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