EP0735199A1 - Slotting machine - Google Patents

Slotting machine Download PDF

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Publication number
EP0735199A1
EP0735199A1 EP96102544A EP96102544A EP0735199A1 EP 0735199 A1 EP0735199 A1 EP 0735199A1 EP 96102544 A EP96102544 A EP 96102544A EP 96102544 A EP96102544 A EP 96102544A EP 0735199 A1 EP0735199 A1 EP 0735199A1
Authority
EP
European Patent Office
Prior art keywords
frame
milling
narrow sides
milling frame
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.)
Granted
Application number
EP96102544A
Other languages
German (de)
French (fr)
Other versions
EP0735199B1 (en
Inventor
Maximilian Arzberger
Ignaz Seitle
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 Spezialtiefbau GmbH
Original Assignee
Bauer Spezialtiefbau 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
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Publication of EP0735199A1 publication Critical patent/EP0735199A1/en
Application granted granted Critical
Publication of EP0735199B1 publication Critical patent/EP0735199B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E02F3/20—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
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/22—Component parts
    • E02F3/26—Safety or control devices

Definitions

  • the invention relates to a trench cutter according to the preamble of claim 1.
  • Known trench wall milling machines have a milling frame, on the lower end of which milling wheels are attached.
  • the trench cutter is lowered to the ground on a carrying device, the soil below being removed by the rotary movement of the cutting wheels. Due to its own weight, the trench cutter usually digs vertically down into the ground.
  • the trench cutter will move in the direction of the softer soil layers, and therefore the milling direction will deviate from the vertical.
  • Known diaphragm wall milling machines are therefore equipped with devices to determine and compensate for deviations from the vertical milling direction.
  • a trench wall cutter which has a guide frame with a substantially rectangular plan and a steering frame which is suspended from the lower end of the guide frame with the help of pendulum rods. Furthermore, this trench cutter includes control cylinder piston units, with the aid of which the steering frame can be laterally deflected relative to the guide frame is. This type of suspension of the steering frame allows the steering frame to be deflected in several spatial directions, but it is also correspondingly complex, and moreover leads to a trench wall cutter with a relatively large overall height.
  • the invention has for its object to provide a trench cutter of the generic type, which is structurally simple and has small dimensions.
  • the trench wall cutter has a milling frame with a substantially cuboidal outer contour.
  • a carrier part for the milling wheels is rotatably mounted in the area of the vertical narrow sides.
  • the carrier part has lever arms which project upwards into the interior of the milling frame and are likewise arranged in the region of the vertical narrow sides of the milling frame. Between the lever arms and the milling frame are arranged near the vertical narrow sides and parallel to these hydraulic elements in a substantially horizontal position, i.e. parallel to the base of the milling frame. By actuating the hydraulic elements, the lever arms, and thus the support part, are pivoted relative to the milling frame about a horizontal axis parallel to the long sides of the milling frame.
  • the space in between in the milling frame stands for other devices available, such as for a conveyor to promote the milled soil or the like.
  • the hydraulic elements consist of hydraulic cylinders which are arranged essentially horizontally and parallel to the vertical narrow sides of the milling frame.
  • the hydraulic cylinders are designed to be short and only allow a correspondingly short stroke movement. Therefore, the length of the lever arms is chosen so that the support member can still be pivoted through a sufficient angle relative to the milling frame.
  • the trench wall cutter has a milling frame 10 which has a substantially cuboidal outer contour.
  • a suspension device 12 is attached in a manner known per se, with which the milling frame can be suspended in a conventional manner on a carrying device.
  • a carrier part 20 is rotatably mounted in two bearings 30.
  • the swivel axis runs horizontally and parallel to the wide sides of the milling frame.
  • Four cutter wheels 40 are arranged in pairs on the support part 20 arranged. The pivot axis thus runs perpendicular to the axes of the milling wheels 40.
  • the carrier part 20 has in the area of the bearings 30, i.e. in the area of the narrow sides two lever arms 22 which extend upwards into the interior of the milling frame 10.
  • the lever arms 22 have eyes 24 at their upper ends, in which hydraulic elements 50 are rotatably fastened.
  • Each hydraulic element 50 consists of a piston / cylinder unit, one end of which engages the lever arm 22 and the other end of which is rotatably mounted in eyes 14 attached to the milling frame 10.
  • the piston / cylinder units are arranged essentially horizontally in the region of the narrow sides of the milling frame and essentially parallel to the narrow sides of the milling frame.
  • the upper end of the lever arms 22 can be moved back and forth essentially horizontally.
  • the carrier part 20 rotates in the bearings 30 and the cutting wheels execute a pivoting movement in the opposite direction to the upper ends of the lever arms 22, i.e. the milling wheels 40 are deflected perpendicularly to a milling plane defined by the milling wheels.
  • the trench wall cutter is preferably provided in a manner known per se with an inclination detector which indicates deviations from the desired vertical milling direction.
  • the hydraulic elements are actuated in such a way that the deviation from the vertical is compensated for by the pivoting of the carrier part with the cutting wheels caused thereby.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Earth Drilling (AREA)
  • Adjustment And Processing Of Grains (AREA)
  • Dicing (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)

Abstract

The cutter has a frame and a carrier for at least two cutter wheels. The carrier (20) is turnably fastened in the frame, in the area of its two vertical narrow sides. In this area, it has upward projecting lever arms (22). The hydraulic elements (50) to move the carrier relative to the frame, are located in the frame in the area of the narrow sides, in a horizontal position between lever arms and cutter frame. The hydraulic elements are pistons/cylinders, which are located mainly horizontally and parallel to the vertical narrow sides.

Description

Die Erfindung bezieht sich auf eine Schlitzwandfräse gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a trench cutter according to the preamble of claim 1.

Bekannte Schlitzwandfräsen weisen einen Fräsrahmen auf, an dessen unterem Ende Fräsräder angebracht sind. Die Schlitzwandfräse wird an einer Tragevorrichtung auf den Boden herabgelassen, wobei durch die Drehbewegung der Fräsräder das darunterliegende Erdreich abgetragen wird. Aufgrund ihres Eigengewichts gräbt sich die Schlitzwandfräse normalerweise vertikal nach unten ins Erdreich. Treffen die Fräsräder jedoch auf unterschiedlich harte Bodenschichten, weicht die Schlitzwandfräse in Richtung der weicheren Bodenschichten aus, und daher die Fräsrichtung von der Vertikalen ab. Bekannte Schlitzwandfräsen sind daher mit Einrichtungen ausgerüstet, um Abweichungen von der vertikalen Fräsrichtung festzustellen und auszugleichen.Known trench wall milling machines have a milling frame, on the lower end of which milling wheels are attached. The trench cutter is lowered to the ground on a carrying device, the soil below being removed by the rotary movement of the cutting wheels. Due to its own weight, the trench cutter usually digs vertically down into the ground. However, if the milling wheels meet differently hard soil layers, the trench cutter will move in the direction of the softer soil layers, and therefore the milling direction will deviate from the vertical. Known diaphragm wall milling machines are therefore equipped with devices to determine and compensate for deviations from the vertical milling direction.

Aus der DE-PS 36 02 387 ist eine Schlitzwandfräse bekannt, die ein Führungsgestell mit einem im wesentlichen rechteckigen Grundriß und ein Lenkgestell aufweist, das am unteren Ende des Führungsgestells mit Hilfe von Pendelstangen pendelnd aufgehängt ist. Ferner enthält diese Schlitzwandfräse Steuerzylinderkolbenaggregate, mit deren Hilfe das Lenkgestell gegenüber dem Führungsgestell seitlich auslenkbar ist. Diese Art der Aufhängung des Lenkgestells ermöglicht zwar die Auslenkung des Lenkgestells in mehrere Raumrichtungen, dafür ist sie aber auch entsprechend aufwendig, und führt überdies zu einer Schlitzwandfräse mit relativ großer Bauhöhe.From DE-PS 36 02 387 a trench wall cutter is known which has a guide frame with a substantially rectangular plan and a steering frame which is suspended from the lower end of the guide frame with the help of pendulum rods. Furthermore, this trench cutter includes control cylinder piston units, with the aid of which the steering frame can be laterally deflected relative to the guide frame is. This type of suspension of the steering frame allows the steering frame to be deflected in several spatial directions, but it is also correspondingly complex, and moreover leads to a trench wall cutter with a relatively large overall height.

Der Erfindung liegt die Aufgabe zugrunde, eine Schlitzwandfräse der gattungsgemäßen Art anzugeben, die konstruktiv einfach ausgeführt ist und geringe Abmessungen aufweist.The invention has for its object to provide a trench cutter of the generic type, which is structurally simple and has small dimensions.

Diese Aufgabe ist bei einer Schlitzwandfräse gelöst, die die Merkmale des Anspruchs 1 aufweist. Eine vorteilhafte Weiterbildung ist in dem Unsteranspruch enthalten.This object is achieved in a trench wall cutter which has the features of claim 1. An advantageous further development is contained in the unsubstantiated claim.

Erfindungsgemäß weist die Schlitzwandfräse einen Fräsrahmen mit im wesentlichen quaderförmiger Außenkontur auf. Im Bereich der vertikalen Schmalseiten ist ein Trägerteil für die Fräsräder drehbar gelagert. Das Trägerteil besitzt nach oben ins Innere des Fräsrahmens ragende Hebelarme, die ebenfalls im Bereich der vertikalen Schmalseiten des Fräsrahmens angeordnet sind. Zwischen den Hebelarmen und dem Fräsrahmen sind nahe den vertikalen Schmalseiten und parallel zu diesen Hydraulikelemente in im wesentlichen horizontaler Lage angeordnet,d.h. parallel zur Grundfläche des Fräsrahmens. Durch Betätigen der Hydraulikelemente werden die Hebelarme, und somit das Trägerteil gegenüber dem Fräsrahmen um eine horizontale Achse parallel zu den Längsseiten des Fräsrahmens verschwenkt.According to the invention, the trench wall cutter has a milling frame with a substantially cuboidal outer contour. A carrier part for the milling wheels is rotatably mounted in the area of the vertical narrow sides. The carrier part has lever arms which project upwards into the interior of the milling frame and are likewise arranged in the region of the vertical narrow sides of the milling frame. Between the lever arms and the milling frame are arranged near the vertical narrow sides and parallel to these hydraulic elements in a substantially horizontal position, i.e. parallel to the base of the milling frame. By actuating the hydraulic elements, the lever arms, and thus the support part, are pivoted relative to the milling frame about a horizontal axis parallel to the long sides of the milling frame.

Da die Lagerung des Trägerteils und auch die zum Verschwenken notwendigen Hebelarme und Hydraulikelemente nahe den Schmalseiten des Fräsrahmens angeordnet sind, steht der dazwischenliegende Raum im Fräsrahmen für andere Einrichtungen zur Verfügung, wie beispielsweise für eine Fördereinrichtung zur Förderung des ausgefrästen Erdreichs oder dergleichen.Since the mounting of the carrier part and also the lever arms and hydraulic elements necessary for pivoting are arranged near the narrow sides of the milling frame, the space in between in the milling frame stands for other devices available, such as for a conveyor to promote the milled soil or the like.

Gemäß einer bevorzugten Ausführung der erfindungsgemäßen Schlitzwandfräse bestehen die Hydraulikelemente aus Hydraulikzylindern, die im wesentlichen horizontal und parallel zu den vertikalen Schmalseiten des Fräsrahmens angeordnet sind. Die Hydraulikzylinder sind entsprechend kurz ausgeführt und lassen auch nur eine entsprechend kurze Hubbewegung zu. Daher ist die Länge der Hebelarme so gewählt, daß trotzdem das Trägerteil um einen ausreichenden Winkel gegenüber dem Fräsrahmen verschwenkt werden kann.According to a preferred embodiment of the trench wall cutter according to the invention, the hydraulic elements consist of hydraulic cylinders which are arranged essentially horizontally and parallel to the vertical narrow sides of the milling frame. The hydraulic cylinders are designed to be short and only allow a correspondingly short stroke movement. Therefore, the length of the lever arms is chosen so that the support member can still be pivoted through a sufficient angle relative to the milling frame.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels näher erläutert, das in den Figuren dargestellt ist. Es zeigt

Fig. 1
eine schematisch dargestellte erfindungsgemäße Schlitzwandfräse von ihrer schmalen Seite;
Fig. 2
eine schematisch dargestellte erfindungsgemäße Schlitzwandfräse von ihrer breiten Seite.
The invention is explained in more detail below using an exemplary embodiment which is illustrated in the figures. It shows
Fig. 1
a schematically shown trench cutter according to the invention from its narrow side;
Fig. 2
a schematically shown trench cutter according to the invention from its wide side.

Wie in den Figuren dargestellt, weist die Schlitzwandfräse einen Fräsrahmen 10 auf, der eine im wesentlichen quaderförmige Außenkontur hat. Am oberen Ende des Fräsrahmens 10 ist in an sich bekannter Weise eine Aufhängevorrichtung 12 angebracht, mit der der Fräsrahmen in herkömmlicher Weise an einer Tragevorrichtung aufhängbar ist. Am unteren Ende des Fräsrahmens 10 ist in zwei Lagern 30 ein Trägerteil 20 drehbar gelagert. Die Schwenkachse verläuft horizontal und parallel zu den breiten Seiten des Fräsrahmens. Am Trägerteil 20 sind vier Fräsräder 40 paarweise hintereinander angeordnet. Die Schwenkachse verläuft somit senkrecht zu den Achsen der Fräsräder 40.As shown in the figures, the trench wall cutter has a milling frame 10 which has a substantially cuboidal outer contour. At the upper end of the milling frame 10, a suspension device 12 is attached in a manner known per se, with which the milling frame can be suspended in a conventional manner on a carrying device. At the lower end of the milling frame 10, a carrier part 20 is rotatably mounted in two bearings 30. The swivel axis runs horizontally and parallel to the wide sides of the milling frame. Four cutter wheels 40 are arranged in pairs on the support part 20 arranged. The pivot axis thus runs perpendicular to the axes of the milling wheels 40.

Das Trägerteil 20 weist im Bereich der Lager 30, d.h. im Bereich der Schmalseiten zwei Hebelarme 22 auf, die sich nach oben ins Innere des Fräsrahmens 10 erstrecken. Die Hebelarme 22 weisen an ihren oberen Enden Augen 24 auf, in denen Hydraulikelemente 50 drehbar befestigt sind. Jedes Hydraulikelement 50 besteht aus einer Kolben/Zylinder-Einheit, deren eines Ende am Hebelarm 22 angreift, und deren anderes Ende in am Fräsrahmen 10 angebrachten Augen 14 drehbar gelagert ist. Die Kolben/Zylinder-Einheiten sind im wesentlichen horizontal im Bereich der Schmalseiten des Fräsrahmens und im wesentlichen parallel zu den Schmalseiten des Fräsrahmens angeordnet.The carrier part 20 has in the area of the bearings 30, i.e. in the area of the narrow sides two lever arms 22 which extend upwards into the interior of the milling frame 10. The lever arms 22 have eyes 24 at their upper ends, in which hydraulic elements 50 are rotatably fastened. Each hydraulic element 50 consists of a piston / cylinder unit, one end of which engages the lever arm 22 and the other end of which is rotatably mounted in eyes 14 attached to the milling frame 10. The piston / cylinder units are arranged essentially horizontally in the region of the narrow sides of the milling frame and essentially parallel to the narrow sides of the milling frame.

Durch Betätigen der Hydraulikelemente 50 ist das obere Ende der Hebelarme 22 im wesentlichen horizontal hin- und herbewegbar. Dadurch dreht sich das Trägerteil 20 in den Lagern 30, und führen die Fräsräder eine zu den oberen Enden der Hebelarme 22 gegenläufige Schwenkbewegung aus, d.h. werden die Fräsräder 40 senkrecht zu einer durch die Fräsräder festgelegten Fräsebene ausgelenkt.By actuating the hydraulic elements 50, the upper end of the lever arms 22 can be moved back and forth essentially horizontally. As a result, the carrier part 20 rotates in the bearings 30 and the cutting wheels execute a pivoting movement in the opposite direction to the upper ends of the lever arms 22, i.e. the milling wheels 40 are deflected perpendicularly to a milling plane defined by the milling wheels.

Die Schlitzwandfräse ist vorzugsweise in an sich bekannter Weise mit einem Neigungsdetektor versehen, der Abweichungen von der gewünschten vertikalen Fräsrichtung anzeigt. Je nach Größe und Richtung der jeweiligen Abweichung werden die Hydraulikelemente derart betätigt, daß durch das dadurch hervorgerufene Verschwenken des Trägerteils mit den Fräsrädern die Abweichung von der Vertikalen kompensiert wird.The trench wall cutter is preferably provided in a manner known per se with an inclination detector which indicates deviations from the desired vertical milling direction. Depending on the size and direction of the respective deviation, the hydraulic elements are actuated in such a way that the deviation from the vertical is compensated for by the pivoting of the carrier part with the cutting wheels caused thereby.

Claims (2)

Schlitzwandfräse mit einem Fräsrahmen mit einer im wesentlichen quaderförmigen Außenkontur und einem Trägerteil für mindestens ein Paar Fräsräder, bei der das Trägerteil am Fräsrahmen befestigt ist, und durch mindenstens ein Hydraulikelement gegenüber dem Fräsrahmen um eine horizontale Achse verschwenkbar ist,
dadurch gekennzeichnet,
daß das Trägerteil im Bereich der beiden vertikalen Schmalseiten des Fräsrahmens im Fräsrahmen drehbar gelagert ist,
daß das Trägerteil (20) im Bereich der vertikalen Schmalseiten nach oben ragende Hebelarme (22) besitzt, und
daß die Hydraulikelemente (50) im Bereich der vertikalen Schmalseiten im Fräsrahmen (10) in im wesentlichen horizontaler Lage zwischen den Hebelarmen und dem Fräsrahmen angeordnet sind.Trench wall cutter with a milling frame with a substantially rectangular outer contour and a carrier part for at least one pair of milling wheels, in which the carrier part is fastened to the milling frame and can be pivoted about a horizontal axis with respect to the milling frame,
characterized by
that the carrier part is rotatably mounted in the milling frame in the area of the two vertical narrow sides of the milling frame,
that the carrier part (20) has upwardly projecting lever arms (22) in the region of the vertical narrow sides, and
that the hydraulic elements (50) are arranged in the region of the vertical narrow sides in the milling frame (10) in a substantially horizontal position between the lever arms and the milling frame. Schlitzwandfräse nach Anspruch 1,
dadurch gekennzeichnet,
daß die Hydraulikelemente Zylinder/Kolben-Elemente sind, die im wesentlichen horizontal und parallel zu den vertikalen Schmalseiten des Fräsrahmens angeordnet sind.Trench cutter according to claim 1,
characterized by
that the hydraulic elements are cylinder / piston elements which are arranged substantially horizontally and parallel to the vertical narrow sides of the milling frame.
EP96102544A 1995-03-28 1996-02-20 Slotting machine Expired - Lifetime EP0735199B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29505263U 1995-03-28
DE29505263U DE29505263U1 (en) 1995-03-28 1995-03-28 Trench cutter

Publications (2)

Publication Number Publication Date
EP0735199A1 true EP0735199A1 (en) 1996-10-02
EP0735199B1 EP0735199B1 (en) 2001-07-04

Family

ID=8006013

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96102544A Expired - Lifetime EP0735199B1 (en) 1995-03-28 1996-02-20 Slotting machine

Country Status (4)

Country Link
EP (1) EP0735199B1 (en)
JP (1) JP2866341B2 (en)
KR (1) KR100237228B1 (en)
DE (2) DE29505263U1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1748110A2 (en) 2005-07-22 2007-01-31 SOILMEC S.p.A. Method and device for mixing earth in situ for the formation of underground walls or diaphragms
US7363990B2 (en) 2004-08-10 2008-04-29 Bauer Maschinen Gmbh Cutting device and method for producing a cut hole
JP2020117934A (en) * 2019-01-23 2020-08-06 大成建設株式会社 Blade expanding excavator and method for constructing wall pile

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2747704B1 (en) * 1996-04-19 1998-07-10 Sol Comp Du DRILLING METHOD FOR REALIZING A BROAD BASED BAR IN THE GROUND, APPARATUS FOR IMPLEMENTING SAME AND BAR THUS OBTAINED
ES2328211B1 (en) * 2008-05-05 2010-09-13 Ack 90, S.L. MILLING SYSTEM FOR THE REALIZATION OF WALLS SCREEN.
JP5450315B2 (en) * 2010-08-20 2014-03-26 株式会社東亜利根ボーリング Excavator tilt correction device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5612432A (en) * 1979-07-10 1981-02-06 Okumura Constr Co Ltd Underground wall hole excavator
EP0109907A2 (en) * 1982-11-19 1984-05-30 SOLETANCHE Société Anonyme dite: Device for maintaining a boring machine in a vertical position
DE3602387C1 (en) * 1986-01-28 1987-06-04 Hochtief Ag Hoch Tiefbauten Device for introducing a substantially vertical bottom slot
EP0496926A1 (en) * 1991-02-01 1992-08-05 C.T.R. - Consulenti Tecnico-Commerciali Riuniti S.A.S. Di Miotti Anna E C. Trench cutter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6245831A (en) * 1985-08-22 1987-02-27 Nippon Ikosu Kk Underground trencher
JPS63125727A (en) * 1986-11-17 1988-05-28 Shimizu Constr Co Ltd Method and apparatus for construction of vertical coupler mortise for underground continuous wall
JPH06128960A (en) * 1992-10-15 1994-05-10 Ohbayashi Corp Excavator for underground wall with nonuniform section

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5612432A (en) * 1979-07-10 1981-02-06 Okumura Constr Co Ltd Underground wall hole excavator
EP0109907A2 (en) * 1982-11-19 1984-05-30 SOLETANCHE Société Anonyme dite: Device for maintaining a boring machine in a vertical position
DE3602387C1 (en) * 1986-01-28 1987-06-04 Hochtief Ag Hoch Tiefbauten Device for introducing a substantially vertical bottom slot
EP0496926A1 (en) * 1991-02-01 1992-08-05 C.T.R. - Consulenti Tecnico-Commerciali Riuniti S.A.S. Di Miotti Anna E C. Trench cutter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 005, no. 057 (M - 064) 18 April 1981 (1981-04-18) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7363990B2 (en) 2004-08-10 2008-04-29 Bauer Maschinen Gmbh Cutting device and method for producing a cut hole
EP1748110A2 (en) 2005-07-22 2007-01-31 SOILMEC S.p.A. Method and device for mixing earth in situ for the formation of underground walls or diaphragms
JP2020117934A (en) * 2019-01-23 2020-08-06 大成建設株式会社 Blade expanding excavator and method for constructing wall pile

Also Published As

Publication number Publication date
EP0735199B1 (en) 2001-07-04
KR960034592A (en) 1996-10-24
DE59607195D1 (en) 2001-08-09
KR100237228B1 (en) 2000-01-15
JP2866341B2 (en) 1999-03-08
JPH08270005A (en) 1996-10-15
DE29505263U1 (en) 1995-05-24

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