EP0299952A1 - Procédé pour l'avancement d'un tunnel et perceuse à bouclier pour mettre en oeuvre ce procédé - Google Patents

Procédé pour l'avancement d'un tunnel et perceuse à bouclier pour mettre en oeuvre ce procédé Download PDF

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Publication number
EP0299952A1
EP0299952A1 EP88890187A EP88890187A EP0299952A1 EP 0299952 A1 EP0299952 A1 EP 0299952A1 EP 88890187 A EP88890187 A EP 88890187A EP 88890187 A EP88890187 A EP 88890187A EP 0299952 A1 EP0299952 A1 EP 0299952A1
Authority
EP
European Patent Office
Prior art keywords
pressure
bell
pressure bell
displacement
space
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
EP88890187A
Other languages
German (de)
English (en)
Other versions
EP0299952B1 (fr
Inventor
Werner Dipl.-Ing. Wippig
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.)
Sandvik Mining and Construction GmbH
Original Assignee
Voest Alpine Bergtechnik GmbH
Voest Alpine Maschinenbau 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 Voest Alpine Bergtechnik GmbH, Voest Alpine Maschinenbau GmbH filed Critical Voest Alpine Bergtechnik GmbH
Publication of EP0299952A1 publication Critical patent/EP0299952A1/fr
Application granted granted Critical
Publication of EP0299952B1 publication Critical patent/EP0299952B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
    • E21D9/0875—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a movable support arm carrying cutting tools for attacking the front face, e.g. a bucket
    • E21D9/0879—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a movable support arm carrying cutting tools for attacking the front face, e.g. a bucket the shield being provided with devices for lining the tunnel, e.g. shuttering

Definitions

  • the invention relates to a method for tunneling with a shield tunneling machine, in which the excavation space is sealed off from the shield construction by means of a pressure bell and is placed under higher pressure than the space inside the shield construction, and to an apparatus for carrying out this method.
  • a device and a method for the removal of soil from the pressure chamber of a tunnel driving shield have become known.
  • a pressure-resistant sealing wall is built inside the shield construction behind the removal tools and a pressure chamber is formed which is spatially separated from the room in which operating personnel are located.
  • the pressure chamber is usually filled with compressed air in order to retain the water that occurs depending on the geological formation.
  • a support fluid pressure control for a shield tunneling machine has become known, the extraction chamber filled with support fluid being sealed by a partition that penetrates the machine cross-section from the tunnel, which is not under pressure.
  • a spring arrangement is provided for the support, as a result of which a support fluid pressure container can be dispensed with.
  • a support fluid pressure container can be dispensed with. In the known design, only a shift in the machine longitudinal direction is provided.
  • Earth pressure compensation shields are also already known, in which the earth pressure is measured by separate measuring devices. With access to freshly dissolved soil, everyone is However, a change in material density is inevitable. For this reason, the use of the known earth pressure compensation shields is mostly limited to soft, mushy soils in the groundwater.
  • the mined soil is compacted in a conveyor drum or screw to such an extent that the material forms an impermeable barrier which can support the working face and retain groundwater.
  • pressure transducers are arranged, which can be arranged both in the pressure chamber and in the area of the screw conveyor, whereby the possibility is to be created to control the extraction of soil from the screw according to the pressure conditions.
  • such pressure transducers can only cover a small, locally limited area, so that with regard to the material density that varies over the working face, relatively large uncertainties with regard to the actual pressure conditions on the mining area must be expected.
  • the invention now aims to provide a method of the type mentioned, which makes it possible to detect the actual pressure conditions on the working face more precisely and, in particular, also enables a sensible control if there are greater fluctuations in the material density and in the working face Pressure conditions occur. In this way, settlements and other suddenly occurring problems during tunneling should be recognized in good time and the possibility should be created to take countermeasures in good time.
  • the method according to the invention essentially consists in that the pressure in the extraction space is transferred directly to the material in the extraction space via a displaceable and pivotable sealing pressure bell, and that the pressure bell is set against the material in the extraction space by means of an adjustable and / or adjustable drive is pressed.
  • a displaceable and pivotable sealing pressure bell can be transferred directly to the material in the mining area, the possibility is created to specifically take into account the differences in the consistency of the mined material at different altitudes.
  • the movable and swiveling, sealing pressure bell makes it possible to maintain a constant pressure over the entire height of the tunneling machine.
  • the drive of the dismantling tools is stored in the pressure bell and the axis of rotation of this drive is pivoted together with the pressure bell, whereby a uniform utilization and thus a high, adapted, constant removal performance is made possible in each swivel position of the pressure bell according to the required supporting pressure.
  • the method according to the invention is supplemented with a correspondingly reliable measuring method and is advantageously carried out in such a way that the pressure load on the pressure bell is measured and that the pressure bell is adjusted in dependence on the measured values by a plurality of separate displacement or swivel drives.
  • a plurality of representative measured values are obtained, which make it possible to carry out the displacement or pivoting movement of this pressure bell in accordance with the measured pressure values.
  • the device according to the invention for performing this method is essentially characterized in that a drive for a removal tool, in particular a cutting wheel, sealingly surrounding pressure bell is sealingly displaceable in the longitudinal direction of the shield constructions and pivotably arranged with respect to the longitudinal direction of the shield construction and that the pressure bell is connected to pressure and / or displacement transducers as well as displacement and / or swivel drives.
  • the measure that the pressure bell is sealingly displaceable in the longitudinal direction of the shield construction and pivotable relative to the longitudinal direction of the shield construction it is possible to set this pressure bell according to the respective requirements of the working face, in order in this way a regional compensation of the earth pressure according to the ensure geological conditions.
  • the pressure bell is pressed by separate, appropriately arranged displacement and / or swivel drives, which are connected to pressure and / or displacement sensors for better control of the displacement and / or swivel movement.
  • a particularly simple combination of pressure transducers or displacement transducers with displacement and / or swivel drives can be achieved when using hydraulic cylinder-piston units, which enables the pressure bell to be pivoted in a targeted manner according to the pressure conditions.
  • the displacement and / or swivel drives of the pressure bell can be formed by fluidic cylinder piston assemblies and the pressure transducers can be designed as pressure gauges connected to the working space of the fluidic cylinders.
  • Fluidic cylinder piston units of this type offer the advantage that, in addition to their function as a drive for the displacement or pivoting movement of the pressure bell, they can also serve as measuring sensors, in which case it is sufficient instead of complex displacement sensors to connect simple pressure gauges to the work area of the respective fluidic cylinder.
  • the displacement and / or swivel drives, and in particular the fluidic cylinder piston units, can advantageously be supported on a support structure supported within the shield construction.
  • an abutment for the drives which is stationary relative to the shield construction is created and the possibility is created to use the pressure bell not only for receiving the earth pressure, but also for directional control.
  • the support and control cylinders for the pressure bell or for the individual movable wall parts of the pressure bell can be used individually or in groups for obtaining the pressure measurements of the final pressure and for active control.
  • the support structure is advantageously designed as a further sealing wall in the shield construction, so that an additional security room is formed.
  • this additional safety space can be filled by introducing compressed air, so that the operating personnel are provided with increased safety.
  • the displaceable pressure bell itself can have edges parallel to the shield, as a result the edge seal is significantly simplified.
  • the pressure bell can be supported in slide bearings, in particular spherical slide bearings, on the drive shaft or on the housing surrounding the drive shaft.
  • the drive shaft of the cutting wheel must pass through the pressure bell and can advantageously be hollow, which creates the possibility of arranging a discharge device within the hollow drive shaft.
  • the pressure bell can have an opening for the connection of a discharge device, as a result of which the cut material can be transported away safely and quickly while maintaining the required pressure.
  • the design is advantageously made in such a way that the pressure bell and optionally also the support structure have a lock.
  • the fluidic cylinder piston assemblies which can be designed in a particularly simple manner as hydraulic cylinder piston assemblies, are arranged distributed over the entire circumference of the pressure bell, which on the one hand makes it possible to record and register the earth pressure over the entire excavation area or working face and on the other hand the Different earth pressures depending on the diameter of the tunneling machine can be clearly measured and recorded at all altitudes in front of the shield machine, especially in the roof, elm and sole.
  • the arrangement of the hydraulic cylinder-piston units on the circumference also enables secure support against the actual one Shield construction so that even large forces can be safely absorbed or exerted.
  • Screw conveyors or similar systems are primarily suitable for the removal of soil, with additional cellular wheels, storage flaps or the like. be arranged in order to be able to control the runoff of the mined soil exactly.
  • the control of the support and control cylinders or the displacement and swivel drives of the pressure bell can be carried out in a simple manner by means of a freely programmable switching mechanism, the design preferably being such that the signal lines of the pressure measuring devices and / or displacement transducers have a freely programmable switching mechanism are connected and that control lines of the freely programmable switching mechanism are connected to the drives, in particular valves of the fluidic drives, of the displaceable and pivotable pressure bell.
  • FIG. 1 shows an axial section through a device according to the invention and FIG. 2 shows a view in the direction of arrow II of FIG. 1 with the tool carriers removed.
  • a shield extension 1 is shown, at the end face 2 on the face side a sliding seal 3 for the displaceable and pivotable pressure bell 4 is arranged.
  • the displaceable pressure bell 4 extends hiebei near the face in the direction of the axis 5 and overlaps with its outer ring 4 ', the tool carrier 6 of rotatably mounted mining tools.
  • the movable pressure bell 4 is supported by hydraulic cylinder-piston units 7 on a support structure 8, which is arranged in a stationary manner within the shield construction 1.
  • This support structure 8 is designed as a sealing wall and supports the bearing 9 for the drive shaft 10 of the tool holder 6.
  • the bearing 9 is spherical to enable pivoting of the drive 11 for the shaft 10 in the direction of the double arrow 12.
  • the storage is designed so that a displacement in the direction of the double arrow 13 parallel to the axis 5 of the shield extension is possible.
  • the pressure bell is displaceable and pivotable on the housing 14, which is held in the bearings 9, for which in turn spherical bearings 15 are provided.
  • the pressure bell 4 carries a pressure lock 16, via which the pressure chamber 17 in front of the pressure-resistant, displaceable and pivotable pressure bell 4 can be made accessible.
  • the hydraulic cylinder-piston units 7 can be pressurized to move or pivot the pressure bell 4.
  • Pressure transducers, not shown, are connected to the working spaces of the pistons of these cylinder-piston assemblies 7, by means of which the respectively existing pressure conditions can be detected.
  • a screw conveyor 18 is connected via a funnel 19 to the displaceable and pivotable pressure bell 4, this screw conveyor 18 sealingly penetrating the pressure-resistant support structure 8. Between the flameproof support structure 8 and the movable pressure bell there remains a space 20 which can be acted upon as compressed air as a second security space if necessary.
  • the screw conveyor 18 or a comparable discharge device can, however, also be inserted into the interior of the hollow drive shaft, indicated by broken lines, the cavity of this drive shaft being designated by 21.
  • Fig. 2 the displaceable and pivotable pressure bell 4 is shown in the view seen from the working face.
  • the support cylinders, via which the pressure measurement values can also be obtained, are indicated schematically by 7. Outside the support cylinders, the feed cylinders 22 of the shield construction are indicated schematically.
  • the drive shaft for the removal tools is again designated 10.
  • the displaceable and pivotable pressure bell 4 has the receiving funnel 19 for the subsequent removal device formed by a screw conveyor 18.
  • the entire surface facing the working face without an overlapping outer ring 4 ' can be arranged displaceably and pivotably within a shield cutting edge by means of a similar sliding seal 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
EP88890187A 1987-07-17 1988-07-15 Procédé pour l'avancement d'un tunnel et perceuse à bouclier pour mettre en oeuvre ce procédé Expired - Lifetime EP0299952B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0181587A ATA181587A (de) 1987-07-17 1987-07-17 Verfahren zum tunnelvortrieb sowie schildvortriebsmaschine zur durchführung dieses verfahrens
AT1815/87 1987-07-17

Publications (2)

Publication Number Publication Date
EP0299952A1 true EP0299952A1 (fr) 1989-01-18
EP0299952B1 EP0299952B1 (fr) 1994-10-05

Family

ID=3521587

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88890187A Expired - Lifetime EP0299952B1 (fr) 1987-07-17 1988-07-15 Procédé pour l'avancement d'un tunnel et perceuse à bouclier pour mettre en oeuvre ce procédé

Country Status (3)

Country Link
EP (1) EP0299952B1 (fr)
AT (2) ATA181587A (fr)
DE (1) DE3851728D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3929393C1 (fr) * 1989-09-02 1990-11-29 Howaldtswerke - Deutsche Werft Ag, 2300 Kiel, De
FR2783889A1 (fr) * 1998-09-29 2000-03-31 Nfm Tech Dispositif d'etancheite entre une tete de coupe d'un tunnelier et un arbre horizontal fixe
CN113236270A (zh) * 2021-04-27 2021-08-10 中铁工程服务有限公司 一种用于盾构掘进轴线的自保持装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2327816A1 (de) * 1973-06-01 1974-12-12 Bade & Co Gmbh Vorrichtung und verfahren zum bodenabtransport aus der druckkammer eines tunnel-vortriebs-schildes
DE1534661B2 (de) * 1963-05-31 1975-04-03 The Robbins Co., Seattle, Wash. (V.St.A.) Tunnelvortriebsmaschine mit Zellaufteilung des Schneidkopfträgers
DE2705580B2 (de) * 1976-04-05 1979-05-03 Tekken Construction Co., Ltd., Tokio Einrichtung zum automatischen Regehi des Druckes in der Druckkammer am Vortriebsschild einer Schildvortriebsmaschine
DE3229268A1 (de) * 1982-08-05 1984-02-09 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Abbauvorrichtung, insbesondere zur verwendung beim schildvortrieb mit fluessigkeitsgestuetzter ortsbrust
EP0192847A1 (fr) * 1985-01-29 1986-09-03 Kabushiki Kaisha Iseki Kaihatsu Koki Machine à bouclier de percement
DE3514563A1 (de) * 1985-04-23 1986-10-30 Strabag Bau-AG, 5000 Köln Tunnelvortriebsmaschine
DE3533425C1 (de) * 1985-09-19 1986-10-30 Hochtief Ag Vorm. Gebr. Helfmann, 4300 Essen Stuetzfluessigkeitsdruckregelung fuer eine Schildvortriebsmaschine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1534661B2 (de) * 1963-05-31 1975-04-03 The Robbins Co., Seattle, Wash. (V.St.A.) Tunnelvortriebsmaschine mit Zellaufteilung des Schneidkopfträgers
DE2327816A1 (de) * 1973-06-01 1974-12-12 Bade & Co Gmbh Vorrichtung und verfahren zum bodenabtransport aus der druckkammer eines tunnel-vortriebs-schildes
DE2705580B2 (de) * 1976-04-05 1979-05-03 Tekken Construction Co., Ltd., Tokio Einrichtung zum automatischen Regehi des Druckes in der Druckkammer am Vortriebsschild einer Schildvortriebsmaschine
DE3229268A1 (de) * 1982-08-05 1984-02-09 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Abbauvorrichtung, insbesondere zur verwendung beim schildvortrieb mit fluessigkeitsgestuetzter ortsbrust
EP0192847A1 (fr) * 1985-01-29 1986-09-03 Kabushiki Kaisha Iseki Kaihatsu Koki Machine à bouclier de percement
DE3514563A1 (de) * 1985-04-23 1986-10-30 Strabag Bau-AG, 5000 Köln Tunnelvortriebsmaschine
DE3533425C1 (de) * 1985-09-19 1986-10-30 Hochtief Ag Vorm. Gebr. Helfmann, 4300 Essen Stuetzfluessigkeitsdruckregelung fuer eine Schildvortriebsmaschine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3929393C1 (fr) * 1989-09-02 1990-11-29 Howaldtswerke - Deutsche Werft Ag, 2300 Kiel, De
GB2236340A (en) * 1989-09-02 1991-04-03 Howaldtswerke Deutsche Werft Shield tunnelling apparatus
FR2783889A1 (fr) * 1998-09-29 2000-03-31 Nfm Tech Dispositif d'etancheite entre une tete de coupe d'un tunnelier et un arbre horizontal fixe
CN113236270A (zh) * 2021-04-27 2021-08-10 中铁工程服务有限公司 一种用于盾构掘进轴线的自保持装置
CN113236270B (zh) * 2021-04-27 2024-05-03 中铁工程服务有限公司 一种用于盾构掘进轴线的自保持装置

Also Published As

Publication number Publication date
ATE112607T1 (de) 1994-10-15
DE3851728D1 (de) 1994-11-10
EP0299952B1 (fr) 1994-10-05
ATA181587A (de) 1995-04-15

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