EP0084365A2 - Combined tunnelling or shaft boring machine with simultaneous shuttering and supporting of the tunnel excavation, and removal of the excavated material - Google Patents

Combined tunnelling or shaft boring machine with simultaneous shuttering and supporting of the tunnel excavation, and removal of the excavated material Download PDF

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Publication number
EP0084365A2
EP0084365A2 EP83100314A EP83100314A EP0084365A2 EP 0084365 A2 EP0084365 A2 EP 0084365A2 EP 83100314 A EP83100314 A EP 83100314A EP 83100314 A EP83100314 A EP 83100314A EP 0084365 A2 EP0084365 A2 EP 0084365A2
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EP
European Patent Office
Prior art keywords
drilling
shaft
steel ring
plastic
combined
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Withdrawn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
EP83100314A
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German (de)
French (fr)
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EP0084365A3 (en
Inventor
Karl Merkle
Erich Bingiesser
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP19830901710 priority Critical patent/EP0162041A1/en
Priority to PCT/EP1983/000142 priority patent/WO1984002740A1/en
Priority to AU15587/83A priority patent/AU1558783A/en
Publication of EP0084365A2 publication Critical patent/EP0084365A2/en
Publication of EP0084365A3 publication Critical patent/EP0084365A3/en
Withdrawn legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms

Definitions

  • the combination invention relates to a machine by means of which tunnels or shafts are drilled, boarded, stiffened with concrete, cast iron or other building material and sealed with plastic without the opening of the clearing material (earth, rock, etc.) - except for the start of the drilling at the same time, the excavated material (earth, rock, etc.) is extracted when drilling the tunnels.
  • the conventional way of producing tunnels or shafts is to tear open the earth, support it and then switch on the tunnel or shaft and fill it with liquid or plastic building materials that will become hard later, then switch it off again and fill in and compress the resulting cavities with filler material .
  • the related formwork material can rarely be used again.
  • the combination invention is based on the task of proposing a combined tunnel or shaft drilling machine with simultaneous boarding and stiffening of the shaft tunnel and return transport of the excavated material, which eliminates the above-mentioned disadvantages of the previously known methods, prevents disabilities etc. and limits them to a minimum.
  • This object is achieved in that the combined machine bears a windmill wing-like overburden head that breaks down the existing material and at the same time transported into the judge under the drilling shaft on the conveyor belt below.
  • the overburden head which is located directly behind the actual drill, can also be constructed in such a way that the tunnel or shaft in each case becomes almost angular and is only slightly rounded.
  • the stiffeners of the individual clearing sheets coated with hard materials are designed in such a way that when the material is drilled and cleared, the material reaches the conveyor belt directly via the funnel.
  • the second shaft on the same shaft which is at least 2/3 the diameter of the first clearing wing and has the actual tunnel diameter as well as stiffeners that are attached so that the clearing material gets onto the conveyor belt running under the shaft.
  • a bearing At the rear end of the shaft is a bearing with a housing.
  • the hammer drill at the end of the shaft can be driven with compressed air or electrically.
  • the steel ring itself contains several nozzles on its front, to which in turn a flexible hose is connected, through which liquid or plastic, at least later hardening, building material is pressed and at the same time drives the whole combination together with the impact drill.
  • the Stablring with its outer and inner plastic spray nozzles and building material connection piece must be stiffened with a ball joint on the same shaft and strong springs between the clearing head, ball joint and bracket of the bearing on which the hydraulic cylinders are mounted, so that the pressure of the building material pumps indirectly Forward movement of the! combined machine.
  • the building material required to climb the tunnel is distributed over the entire circumference of the tunnel by means of small rollers that press the inner plastic casing until the building material hardens.
  • one of the at least three necessary steel rails is welded onto the rear end of the steel ring by means of a welding device, on which the rollers of the hydraulic cylinders run, which in turn are mounted directly behind the stiffening on the bearing mentioned above.
  • longitudinal and transverse rails are connected to the hydraulic cylinders.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Laser Beam Processing (AREA)

Abstract

The wind-mill like stripping percussion drill point, which is provided with hard cutting edges and has built-in automatic neutron bombardment, ultrasonic bombardment or laser beam devices guides the strippings via stiffeners to a conveyor belt for hauling away. The remnants of the strippings or water are sucked off using suction pumps. The drive shaft, which is supported by 6 hydraulic cylinders, is controlled in the measuring and control housing - hanging centre shaft - by computer, ultrasound, infrared, laser or display screen upon presentation of test cards. By means of pumps, hoses, nozzles and welding equipment, insulating and fixing material is moved up to stationary material via a steel ring, which is mounted on the drive shaft with a spherical joint, bearing and untensioning springs and is equipped with external and internal plastic spray nozzles and connecting sockets for construction material, and a steel funnel joined to the steel ring. Rolls, which are mounted on spring holders are for their part fixed to the steel ring on rails provided longitudinally and transversely with spherical joints, press against insulating and fixing material until it sets. The overall drive of the drive shaft, which is provided with the stripping percussion drill point is performed by an electric motor, internal combustion engine or compressed air. Drilling, removal of the stripped material, reinforcement and insulating of the tunnel are performed in one operation.

Description

Die Kombinationaerfindung betrifft eine Maschine, mittels der Tunnels oder Schächte ohne vorheriges Aufreißen des Abräummaterials (Erde, Gestein etc.) - ausgenommen der Ansatz der Bohrung - in einem Arbeitsgang gebohrt, verschalt, mit Beton, Guß oder sonstigem Baustoff versteift und kunatstoffversiegelt werden, wobei gleichzeitig das Aushubmaterial (Erde, Gestein etc.) beim Bohren der Tunnels herausgefördert wird.The combination invention relates to a machine by means of which tunnels or shafts are drilled, boarded, stiffened with concrete, cast iron or other building material and sealed with plastic without the opening of the clearing material (earth, rock, etc.) - except for the start of the drilling at the same time, the excavated material (earth, rock, etc.) is extracted when drilling the tunnels.

Die konventionelle Art der Herstellung von Tunnels oder Schächten besteht darin, daß man die Erde aufreißt, abstützt und dann den Tunnel oder Schacht einschalt und mit flüssigem oder plastischen, später hart werdenden Baustoffen ausfüllt, danach wieder ausschalt und die entstandenen Hohlräume mit Ausfüllmaterial ausfüllt und verdichtet.The conventional way of producing tunnels or shafts is to tear open the earth, support it and then switch on the tunnel or shaft and fill it with liquid or plastic building materials that will become hard later, then switch it off again and fill in and compress the resulting cavities with filler material .

Die bisher bekannten Verfahren sind ausgesprochen zeitaufwendig, mit hohen Lohnkosten und durch die jeweilige Absperrung des Bausektors mit Verkehrabehinderungen und erheblichen Unannehmlichkeiten (Lärmbelästigung etc.) für die Verkehrsteilnehmer und Anwohner verbunden.The previously known methods are extremely time-consuming, involve high wage costs and, due to the respective closure of the construction sector, traffic congestion and considerable inconvenience (noise pollution, etc.) for road users and residents.

Nach den bisher bekannten Verfahren kann auch das verwandte Schalmaterial selten nochmals eingesetzt werden.According to the previously known methods, the related formwork material can rarely be used again.

Die bisher bekanntlich anzusetzenden Material- und Lohnkosten fallen nach den umständlichen Verfahren - abgesehen von erheblichen Lärmbelästigungen und Verkehrsbehinderungen der Anwohner und Verkehrsteilnehmer - neben in Kauf zu nehmenden langen Dauzeiter erheblich ins Gewicht.As is well known, the material and wage costs that have to be used up to now are significant in addition to the long duration that has to be accepted - aside from considerable noise pollution and traffic disruption to residents and road users.

Auch die Umweltbelastungen sind nach den bisherigen Verfahren außerordentlich hoch.The environmental impact is also extremely high according to the previous methods.

Der Kombinationserfindung liegt die Aufgabe zugrunde eine kombinierte Tunnel- bzw. Schachtbohrmaschine mit gleichzeitigem Verschalen und Versteifen des Schachttunnels sowie Rücktransport des Aushubmaterials vorzuschlagen, die die vorstehend aufgezählten Nachteile der bisher bekannten Verfahren beseitigt, Behinderungen etc. verhindert und auf ein Mindestmaß beschränkt.The combination invention is based on the task of proposing a combined tunnel or shaft drilling machine with simultaneous boarding and stiffening of the shaft tunnel and return transport of the excavated material, which eliminates the above-mentioned disadvantages of the previously known methods, prevents disabilities etc. and limits them to a minimum.

Damit entfallen:

  • Absperren ganzer Wohngebiete für den Verkehr, Aufreißen dervorhandenen Straßendecken, Verbrauch erheblichen Schalungsmaterials, bisher hohe Lärmbelästigungen und Umweltbelastungen und damit gleichzeitig bisher anfallende enorme Lohnkosten.
This eliminates:
  • Shutting off entire residential areas for traffic, tearing open the existing road surfaces, using considerable formwork material, previously high levels of noise pollution and environmental pollution and, at the same time, resulting in enormous wage costs.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die kombinierte Maschine einen windmühlflügelartigen Abraumkopf trügt, der das bestehende Material abbaut und zugleich in den rrichter unter der Bohrwelle auf das darunterlaufende Förderband transportiert.This object is achieved in that the combined machine bears a windmill wing-like overburden head that breaks down the existing material and at the same time transported into the judge under the drilling shaft on the conveyor belt below.

Dabei kann der Abraumkopf, der sich unmittelbar hinter dem eigentlichen Bohrer befindet, auch so konstruiert sein, daß der Tunnel oder Schacht jeweils fast kantig wird und lediglich leicht abgerundet wird.The overburden head, which is located directly behind the actual drill, can also be constructed in such a way that the tunnel or shaft in each case becomes almost angular and is only slightly rounded.

Die Versteifungen der einzelnen mit harten Haterialien beschichteten Abräumblätter sind so angelegt, daß beim Bohron und Abräumen des Materials dieses direkt über den Trichter auf das Förderband gelangt.The stiffeners of the individual clearing sheets coated with hard materials are designed in such a way that when the material is drilled and cleared, the material reaches the conveyor belt directly via the funnel.

Der mit harten Material beschichtete Bohrer, an den sich der erste Abräumflügel anschlisßt, wied von einer mindestens 2 m langen, tragenden Welle geführt. Daran anschließend befinden sich auf der gleichen Welle fent montiert die zweiten - den mindestens 2/3 Durchmesser des ersten Abräumflügels überateigenden - Abräumflügel mit dem eigentlichen Tunneldurchmesser sowie Versteifungen die so angebracht sind, daß das Abraummaterial auf das unter der Welle laufende Förderband gelangt.The drill, coated with hard material, to which the first clearing wing is connected, was guided by a supporting shaft that was at least 2 m long. Next to it are the second shaft on the same shaft, which is at least 2/3 the diameter of the first clearing wing and has the actual tunnel diameter as well as stiffeners that are attached so that the clearing material gets onto the conveyor belt running under the shaft.

Am hinteren Endo der Welle befindet sich ein lager mit Gehäuse.At the rear end of the shaft is a bearing with a housing.

Auf der gleichen Welle, aber vorn unmittelbar hinter der Versteifung des Abräumkopfes sind mindestens drei Hydraulikzylinder - einzeln steuerber aber letzten Endes doch aufeinander abgestimmt - die ihrerseits wiederum auf fest eingeschweißten Stahlachienen laufen, aufmontiert.On the same shaft, but at the front directly behind the stiffening of the clearing head, at least three hydraulic cylinders - individually controlled but ultimately coordinated with each other - are mounted, which in turn run on firmly welded steel axes.

Über diese Hydraulikzylinder wird durch Meßgeräte an der Bohrmaschine der Bohr- und Abräumkopf in der gewünschten Richtung gesteuert.About these hydraulic cylinders of the drilling and A is bräumkopf in the desired direction controlled by measuring at the drilling machine.

Die am Ende der Welle angesetzte Schlagbohrmaschine kann mit Druckluft oder elektrisch angetrieben werden.The hammer drill at the end of the shaft can be driven with compressed air or electrically.

Zwischen dem Abräumkopf und dem dahinter befindlichen Stahlring sind mehrere Kunststoff-Spritzdüsen bzw. Schweißgeräte angebracht, die nach dem Abbau der Abraummaterialien durch Auftragen eines Kunststofffilmes ein Abbröckeln des noch bestehenden Materials nach dem Ausbohren und Abräumen verhindert.Between the clearing head and the steel ring located behind it, several plastic spray nozzles or welding devices are attached, which, after the removal of the clearing materials by application of a plastic film, prevents the remaining material from crumbling after drilling and clearing.

Der Stahlring selbst enthält mehrere Stutzen an .seiner Vorderseite, an die wiederum ein flexibler Schlauch angeschlossen ist, durch den mittels Druck flüssiger oder plastischer, jedenfalls später hart werdender Baustoff gepreßt wird und zugleich zusammen mit der Schlagbohrmaschine die ganze Kombination mit vorantreibt.The steel ring itself contains several nozzles on its front, to which in turn a flexible hose is connected, through which liquid or plastic, at least later hardening, building material is pressed and at the same time drives the whole combination together with the impact drill.

Durch die an Baustoffpumpen angeschlossenen flexiblen Schläuche und die ihrerseits am Stahlring sitzenden Stutzen wird je nach Richtungsänderung - gesteuert über Hydraulikzylinder - mehr oder weniger Baustoff eingepreßt.Due to the flexible hoses connected to the building material pumps and the sockets attached to the steel ring, more or less building material is pressed in depending on the change of direction - controlled by hydraulic cylinders.

Der Stablring mit seinen äußeren und inneren Kunststoff-Spritzdüsen und Baustoffanschlußstutzen muß mit ainem Kugelgelenk auf der gleichen Welle und starken Federn zwischen Abräumkopf, Kugelgelenk und Halterung des Lagers, auf dem die Hydraulikzylinder aufmontiert sind, derart versteift werden, daß indirekt der Druck der Baustoffpumpen die Vorwärtsbewegung der ! kombinierten Maschine mitfördert.The Stablring with its outer and inner plastic spray nozzles and building material connection piece must be stiffened with a ball joint on the same shaft and strong springs between the clearing head, ball joint and bracket of the bearing on which the hydraulic cylinders are mounted, so that the pressure of the building material pumps indirectly Forward movement of the! combined machine.

Der jeweils zur Versteigung des Tunnels benötigte Baustoff wird durch kleine Rollen, die die innere Plastikverschalung anpreßt auf den ganzen Umfang des Tunnels bis zur Erhärtung des Baustoffes verteilt.The building material required to climb the tunnel is distributed over the entire circumference of the tunnel by means of small rollers that press the inner plastic casing until the building material hardens.

Durch den Stahlring hindurch wird mittels Schweißgerät unmittelbar am hinßeren Ende des Stahlrings eine der mindestens drei notwendigen Stahlschienen aufgeschweißt, auf denen die Rollen der Hydraulikzylinder laufen, die ihrerseits unmittelbar hinter der Versteifung auf dem vorstehend erwähnten Lager angebracht sind.Through the steel ring, one of the at least three necessary steel rails is welded onto the rear end of the steel ring by means of a welding device, on which the rollers of the hydraulic cylinders run, which in turn are mounted directly behind the stiffening on the bearing mentioned above.

Mit dem gebohrten Tunnel laufend sind an den Hydraulikzylindern längs- und querschienen verbunden.With the drilled tunnel running, longitudinal and transverse rails are connected to the hydraulic cylinders.

Diese Schienen mit einer bestimmten Länge müssen mit Kugelgelenken längs und quer zur Ermöglichung einer Richtungsänderung durch kleine Rollen mit einer Federhalterung an den Schienen verbunden sein.These rails of a certain length must be connected with ball joints longitudinally and transversely to enable a change of direction by small rollers with a spring holder on the rails.

Claims (2)

1. Verfahren zur Herstellung von Tunneln bzw. Schächten, dadurch gekennzeichnet, daß durch eine kombinierte, über Computer und Hydraulikzylinder steuerbare Schlagbohrmaschine in einem Arbeitsgang unmittelbar nach dem Bohren das Abraummaterial herausbefördert, der Tunnel verschalt und mit isolierten Baustoffen sicher versteift wird.1. A process for the production of tunnels or shafts, characterized in that by a combined, computer and hydraulic cylinder controllable impact drill in one operation immediately after drilling the removal material is conveyed out, the tunnel is boarded and securely stiffened with insulated building materials. 2. Kombinierte Maschine zum Ausführen des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß unmittelbar hinter dem Bohr- und Abräumkopf Kunststoffspritzdüsen oder auf Rollen rotierende Schweißgeräte sofort nach dem Bohren auf das stehenbleibende Material eine Kunststoffschicht aufbringen, hinter der ein auf der Bohrwelle mit Kugelgelenk und Versteifungen gelagerter Stahlring mit Anschlußstutzen und flexiblen Schläuchen zum Einpressen von Baustoffen mittels Pumpen an den elastischen Kunststoff gepreßt wird, wobei auf der Innenseite des Stahlringes wiederum Kunststoffspritzdüsen oder Schweißgeräte Kunststoff in jeweils bestimmbarer Stärke auftragen, während kleine, auf Federhalterungen an längs- und querlaufenden, mit Kugelgelenken versehenen Schienen gelagerte Rollen den eingepreßten Baustoff auf einem jeweils regulierbaren Maß halten, während im Zentrum die mit Hydraulikzylindern auf eingeschweißten Schienen beweglich geführte Welle an ihrem hinteren Ende durch eine Schlagbohrmaschine angetrieben wird, wobei der beim Bohren anfallende Abbraum durch einen unter der Welle befindlichen trichterförmigen Einlaufstutzen unmittelbar auf das abtransportierende Förderband gelangt, während an den Hydraulikzylindern Baustoffpumpen und Restmaterialien absaugende Staubsauger angebracht sind.2. Combined machine for carrying out the method according to claim 1, characterized in that immediately behind the drilling and clearing head plastic spray nozzles or rotating rotating welding machines apply a plastic layer immediately after drilling on the material that remains, behind which a on the drilling shaft with ball joint and Stiffening steel ring with connecting pieces and flexible hoses for pressing in building materials is pressed onto the elastic plastic by means of pumps, whereby plastic spray nozzles or welding devices in turn apply plastic of a definable thickness on the inside of the steel ring, while small ones, on spring holders on longitudinal and transverse, with Rollers provided with ball-and-socket joints hold the pressed-in building material at an adjustable level, while in the center the shaft, which is movably guided by hydraulic cylinders on welded-in rails, is held at its rear end by a hammer drill chine is driven, with the excavation resulting from drilling passing directly through a funnel-shaped inlet nozzle under the shaft onto the conveyor belt that is being removed, while building material pumps and residual materials are used to extract vacuum cleaners.
EP83100314A 1982-01-15 1983-01-15 Combined tunnelling or shaft boring machine with simultaneous shuttering and supporting of the tunnel excavation, and removal of the excavated material Withdrawn EP0084365A3 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP19830901710 EP0162041A1 (en) 1983-01-15 1983-05-19 Combined machine for drilling tunnels, respectively wells, with simultaneous coffering and shoring of the tunnel for the well, as well as rear transport of the cuttings
PCT/EP1983/000142 WO1984002740A1 (en) 1983-01-15 1983-05-19 Combined machine for drilling tunnels, respectively wells, with simultaneous coffering and shoring of the tunnel for the well, as well as rear transport of the cuttings
AU15587/83A AU1558783A (en) 1983-01-15 1983-05-19 Kombinierte tunnel-bzw. schachtbohrmaschine mit gleichzeitigem verschalen u. versteifen des schacht-tunnels sowie rucktransport des aushubmaterials

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823201087 DE3201087A1 (en) 1982-01-15 1982-01-15 "COMBINED TUNNEL OR SHAFT DRILLING MACHINE WITH SIMULTANEOUS SHELLING AND REINFORCEMENT OF THE SHAFT TUNNEL AND RETURN TRANSPORT OF THE EXCAVATION MATERIAL"
DE3201087 1982-01-15

Publications (2)

Publication Number Publication Date
EP0084365A2 true EP0084365A2 (en) 1983-07-27
EP0084365A3 EP0084365A3 (en) 1983-11-30

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EP83100314A Withdrawn EP0084365A3 (en) 1982-01-15 1983-01-15 Combined tunnelling or shaft boring machine with simultaneous shuttering and supporting of the tunnel excavation, and removal of the excavated material

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EP (1) EP0084365A3 (en)
DE (1) DE3201087A1 (en)

Cited By (3)

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DE3343212A1 (en) * 1983-11-30 1985-06-13 MC-Bauchemie Müller GmbH & Co, Chemische Fabrik, 4300 Essen Process for lining construction spaces, in particular shafts, galleries, tunnels or the like
CN111927483A (en) * 2020-07-27 2020-11-13 中铁十九局集团轨道交通工程有限公司 Discharging device for tunneling
US10851650B2 (en) * 2019-02-27 2020-12-01 Bouygues Travaux Publics Unclogging of a discharge opening of a tunnel boring machine by ultrasonic waves

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CN107387121B (en) * 2017-08-15 2023-06-02 中铁工程装备集团有限公司 Novel double-liquid grouting full-hydraulic coupling control system

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US1751147A (en) * 1929-03-11 1930-03-18 Roy C Hackley Method of lining tunnels with concrete and apparatus therefor
GB710494A (en) * 1951-01-10 1954-06-16 Edmund Nuttall Sons & Company Improvements in and relating to lining tunnels or bores with concrete
DE913403C (en) * 1951-06-05 1954-06-14 Paul Chlebus Dipl Ing Dr Process and device for lining shafts, mines, galleries and tunnels
DE915925C (en) * 1951-10-21 1954-08-02 Paul Chlebus Dipl Ing Dr Process for lining shafts, mines, galleries and tunnels
DE1006879B (en) * 1955-09-12 1957-04-25 Wayss & Freytag Ag Method for producing a gallery or tunnel masonry
DE1229962B (en) * 1960-06-11 1966-12-08 Bergwerksverband Gmbh Process for maintaining the initial properties of the walls of mine workings
DE1658758A1 (en) * 1963-05-31 1971-01-07 Robbins & Assoc James S Tunneling machine with shield drive
DE1534663A1 (en) * 1963-05-31 1969-02-20 Robbins & Assoc James S Cutting head arrangement for a tunneling machine
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FR1506054A (en) * 1966-12-23 1967-12-15 Mekh Zd N Deg 5 Mechanized tunnel digging shield
CH472547A (en) * 1967-07-03 1969-05-15 Skanska Cementgjuteriet Ab Spray device for applying a spray material on a surface
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DE2538033B1 (en) * 1975-08-27 1976-11-18 Bergwerksverband Gmbh BLOW DEVICE FOR BACK-FILLING OF ROAD CONSTRUCTION
US4043600A (en) * 1975-09-22 1977-08-23 Dresser Industries, Inc. Adjustable bucket for an earth boring machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3343212A1 (en) * 1983-11-30 1985-06-13 MC-Bauchemie Müller GmbH & Co, Chemische Fabrik, 4300 Essen Process for lining construction spaces, in particular shafts, galleries, tunnels or the like
US10851650B2 (en) * 2019-02-27 2020-12-01 Bouygues Travaux Publics Unclogging of a discharge opening of a tunnel boring machine by ultrasonic waves
CN111927483A (en) * 2020-07-27 2020-11-13 中铁十九局集团轨道交通工程有限公司 Discharging device for tunneling

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DE3201087A1 (en) 1983-07-28

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