EP0483445A1 - Bouclier d'avancement - Google Patents

Bouclier d'avancement Download PDF

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Publication number
EP0483445A1
EP0483445A1 EP90890292A EP90890292A EP0483445A1 EP 0483445 A1 EP0483445 A1 EP 0483445A1 EP 90890292 A EP90890292 A EP 90890292A EP 90890292 A EP90890292 A EP 90890292A EP 0483445 A1 EP0483445 A1 EP 0483445A1
Authority
EP
European Patent Office
Prior art keywords
sliding formwork
formwork
shield
elements
sliding
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Withdrawn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
EP90890292A
Other languages
German (de)
English (en)
Inventor
Volker Dipl.-Ing. Hentschel
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
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 filed Critical Voest Alpine Bergtechnik GmbH
Publication of EP0483445A1 publication Critical patent/EP0483445A1/fr
Withdrawn legal-status Critical Current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
    • E21D9/0607—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield being provided with devices for lining the tunnel, e.g. shuttering

Definitions

  • the invention relates to a jacking plate with an essentially cylindrical support frame, on which a sliding formwork for the production of a lining consisting of hardening material, in particular concrete, is axially displaceably mounted, and with a front formwork sealing the end face of the sliding formwork.
  • a number of expansion devices and methods have become known for securing underground cavities.
  • segments which can usually be placed behind the tunneling shield, it is known to secure them by introducing concrete or hardening material, for which formwork is generally required.
  • the hardening material is either filled or pressed in between the formwork and the rock face and, in addition to the basic possibility of subsequently leaving the formwork in the expanded space as an additional expansion element, there is in principle the possibility of moving formwork elements after the hardening of the hardening material so that they can be placed on it Way to continue using the formwork for further expansion.
  • a tunneling shield has already become known, on which a sliding formwork is slidably supported in the axial direction of the tunneling shield.
  • Such sliding formwork which protrudes into the area of the driving shield, enables the early introduction of hardening material, such as concrete, and in the course of further driving, the sliding formwork in the The selected position remains until the material has hardened without the advancing movement of the shield being impaired, since the shield and the sliding formwork are axially displaceable relative to one another.
  • the formwork can be retightened so that further sections can be backfilled with hardening material and the expansion can always be brought close to the face.
  • the invention now aims to provide a tunneling shield of the type mentioned at the outset, with which it is possible to carry out the tunneling work continuously and without impairing the expansion, and in which both the advancement of the tunneling shield itself and the retightening of the sliding formwork without additional Support in the already completed expansion is possible.
  • the invention essentially consists in that shield jacking presses are supported on the sliding formwork. Because the shield jacking presses are supported on the sliding formwork, the sliding formwork can be used directly as an abutment for driving the shield, and conversely, with the same shield jacking presses, with a corresponding design of the sliding formwork, continuous tightening of the sliding shells is also possible.
  • a particularly simple mode of operation in particular when using conventional concrete, can be achieved with a design in which the sliding formwork consists of a plurality of elements which can be displaced relative to one another in the axial direction of the plate by means of separate drives.
  • the fact that the sliding formwork is divided into a plurality of elements which can be displaced relative to one another in the axial direction of the shield ensures that the entirety of the individual elements is capable of absorbing sufficient supporting forces of the shield jacking presses or feed cylinders, even if the hardening material is not yet high Has reached strength.
  • a particularly simple structural design of such a sliding formwork can be achieved in that the sliding formwork can be displaced along the axis of parallel generators in a manner similar to a knife shield Elements is divided.
  • the feed reaction of the shield is readily absorbed by the entire sliding formwork and for the purpose of traversing the sliding formwork, the individual knife-like elements of the sliding formwork to be traversed can be used using the supporting force of the undamaged parts of the formwork be guided along the plate in the longitudinal direction.
  • the design can be such that the sliding formwork consists of a plurality of rings adjoining one another in the axial direction, which are connected to one another by hydraulic cylinder-piston assemblies, again with much smaller friction forces to be overcome for the displacement of a single element of the sliding formwork are than they can be transferred from the entirety of the elements. It is thus possible to move individual elements of this formwork in the axial direction by utilizing the supporting force or frictional force of the elements of the formwork that remain undamaged, and the reaction force of the feed reaction can also be safely absorbed in every phase of the expansion and driving.
  • the formation of the slide formwork as a plurality of rings adjoining one another in the axial direction can advantageously be made such that the elements of the slide formwork formed by rings have hollow-conical or conical approaches on their mutually facing end faces. In this way, the maneuverability of the tunneling shield is increased and better maneuverability in curves is achieved without the static friction conditions between the friction of the formwork segment on the concrete shell being impaired.
  • individual segments or groups of segments can be tracked to the cutting plate, the segments remaining in their position absorbing both the reaction forces of the cutting plate and the displacement forces for the segments of the sliding formwork due to their static friction.
  • the design is advantageously made such that at the separation points of adjacent elements Seals, in particular covering elements that cross the separation points, are arranged.
  • the design is advantageously made such that the feed cylinders are arranged within the area of the double-walled sliding formwork adjacent to the working face.
  • the design is advantageously made such that the front formwork and / or at least one formwork element adjacent to the working face has a connection for the pressing in of hardening material, in particular concrete, the front formwork being able to take on additional supporting forces for the knife shield, if desired .
  • Filling of hardening material can take place, for example, by extruding concrete.
  • FIG. 1 shows a first embodiment of a tunneling shield according to the invention, partly in section, in which the elements of the sliding formwork are designed in the manner of a knife shield; 2 also partly in section, a modified embodiment of a tunneling shield according to the invention based on the knife shield principle; 3 shows a further embodiment of a driving shield according to the invention, partly in section, the sliding formwork consisting of a plurality of rings adjoining one another in the axial direction; and FIG. 4, also partially in section, a modified embodiment of an embodiment according to FIG.
  • a tunneling shield 1 which comprises a support frame 2 for a tunneling machine, not shown, and a cutting shield 3 on the side facing the working face.
  • a slipform 4 is provided, which is divided in the manner of a knife shield from generators parallel to the axis 5 of the tunnel shield into generators that are displaceable relative to one another.
  • the elements of the sliding formwork 4 are displaceable relative to the support frame and to the cutting plate 3 which is firmly connected to it, whereby 4 jacking cylinders 6 are arranged between the support frame 2 and the sliding formwork, which are fixed at 7 on the support frame and at 8 on the sliding formwork.
  • a hardening material in particular concrete 11, is introduced into the free space between the contour of the mountains and the outer surface 10 of the sliding formwork, which is indicated by 9, a front formwork 12 being provided to delimit the cavity in the direction of the face not shown, which is supported against the cutting shield via a cylinder-piston unit 13.
  • Hardening material, in particular concrete is introduced or pressed in, for example, via a schematically illustrated connection 14 of the face formwork 12, the feed line for the hardening material or concrete being indicated schematically by 15.
  • a frictional force acts between the sliding formwork 4 or the individual sliding formwork elements and the concrete shell 11, this frictional force being designated F 1.
  • a frictional force F2 acts between the sliding formwork 4 and the supporting frame 2, the static friction F1 between the concrete 11 and the outer casing 10 being a multiple of the sliding guide friction F2 between the individual elements or knives of the sliding formwork 4 and the supporting frame 2.
  • the individual elements of the sliding formwork 4 can be retightened either individually or in groups via the cylinders 6 and, for example, the free space formed between the outer surface 10 of the sliding formwork 4 and the rock 9 can be pressed again with hardening material or concrete via the front formwork 12.
  • the working face With appropriate dimensioning of the length of the sliding formwork in the longitudinal direction of the driving shield, the working face can thus be continuously dismantled and the extension 11 can be produced directly behind the cutting shield 3, the curing time being coordinated with the driving speed of the dismantling device, not shown, over the length of the sliding formwork elements 4.
  • the individual elements of the sliding formwork 4 are sealed along their separating joints which run essentially parallel to the axis 5 by corresponding covering or sealing elements which overlap the individual elements.
  • Tensioning units are provided, which are braced against the extension 11 and which, via presses or cylinder / piston units 17, enable additional support of the support frame 2 and, if appropriate, additional introduction of feed forces onto the support frame 2.
  • the tunneling shield 1 in turn has a support frame 2 and a cutting shield 3, and a sliding formwork 4 constructed in the manner of a knife shield is again provided.
  • an end formwork 12 is again provided, which is supported on the cutting plate by hydraulic cylinder-piston assemblies 13, the supply of hardening material or Concrete, for example, can again be made via the front formwork 12, but this is not shown for the sake of clarity.
  • the ratio of the frictional force F1 between the shell 11 made of concrete or hardening material and the outer surface 10 of the sliding formwork 4 relative to the smaller sliding friction F2 between the support frame 2 and the individual elements of the sliding formwork 4 is used to the support frame 2nd with the cutting blade 3.
  • this embodiment can also be used a clamping unit 16 provided in the already hardened area of the shell 11 is used, in which case support cylinders 18 are provided between the clamping unit 16 and the sliding formwork 4.
  • the support frame 2 with the cutting plate 3 is thus only pressed via the feed cylinders 6 between the sliding formwork 4 and the support frame 2, while the additional cylinders 18 optionally only support or push the sliding formwork 4 forward.
  • the individual elements are retightened relative to the support frame 2, the larger number of non-moving elements of the sliding formwork 4 fixing the support frame with their static friction to the shell 11, so that it does not is withdrawn. If an additional clamping unit 16 is provided, the additional support cylinders 18 can support this movement of individual elements of the sliding formwork.
  • the driving shield 1 in turn has a support frame 2 and a cutting shield 3, the sliding formwork 4 in this case consisting of a plurality of rings 20 adjoining one another in the axial direction, which are connected to one another by hydraulic cylinder-piston units 21 are.
  • the sliding formwork 4 in this case consisting of a plurality of rings 20 adjoining one another in the axial direction, which are connected to one another by hydraulic cylinder-piston units 21 are.
  • jacking presses or jacking cylinders 22 are used, which are articulated at 23 on the cutting plate and at 24 at the foremost ring element 20 of the sliding formwork 4 facing the working face.
  • the jacking cylinders 22 are supported on the end face of the double-walled foremost ring element 20 of the sliding formwork 4.
  • an end formwork 12 is again used, which is supported by cylinders 13 on the cutting plate.
  • the supply of curing Material in the cavity between the rock 9 and the outer surface 25 of the sliding formwork 4 can in turn be made via the front formwork 12 or also via the formwork element 20 facing the working face, as is indicated schematically by the feed line 26.
  • the ratio of static friction F1 between the outer surface 25 of the individual elements 20 of the formwork 4 and the smaller sliding friction F2 between the foremost elements of the formwork 4 and the support frame 2 is used to turn the support frame by means of the jacking presses or jacking cylinders 22 2 with the cutting blade 3.
  • these elements 20 can be displaced relative to one another essentially in the longitudinal direction 5 of the driving shield, the rings being again individually pulled or pushed forward, while the non-moving elements 20 with their larger ones Stiction between the shell 11 and its outer surfaces 25 prevent the support frame from being retracted.
  • a trailing additional clamping unit 27 can also be provided, which can be integrated, for example, in the last formwork ring 28 or can be connected to it.
  • the ring elements 20 each have a stepped area 29, which is overlapped by an overlapping area 30 of the preceding element, with a seal or a cover element in between 31 is provided.
  • these areas 29 and 30 can be arranged conically or hollow conically with a coordinated contour, as is indicated schematically.
  • the foremost ring element 20 facing the working face is connected directly to the cutting shield 3 via the feed presses or feed cylinders 22, which results in a large mobility of the shield when the extrusion concrete is hardened accordingly.
  • the driving shield 1 again consists of a support frame 2 for a dismantling device (not shown in detail) and a cutting shield 3, the support frame 2 in turn being supported on a sliding formwork 4 which consists of a plurality of rings 20 adjoining one another in the axial direction, between which in turn cylinders Piston units 21 are provided.
  • a sliding formwork 4 which consists of a plurality of rings 20 adjoining one another in the axial direction, between which in turn cylinders Piston units 21 are provided.
  • the design of the cutting plate 3 with the support frame 2 is such that this unit is used in the area 31 itself as formwork element in the foremost area for the fresh concrete zone or for the front area of the shell 11 made of hardening material. Then the further movable formwork elements 20 are coupled.
  • the sliding friction F2 between the support frame 2 and the foremost ring elements 20 exceeds static friction F1 between the outer surfaces 25 of the ring elements and the shell 11 made of hardening material or concrete to pre-press the shield.
  • additional lagging clamping units 27 can also be used in this case.
  • the overall length of the shield 1 can be kept very short, the number of elements 20 of the sliding formwork corresponding to the hardening times of the hardening material or concrete and can be chosen according to the force relationships between the static friction F1 and the sliding friction F2.
  • the sliding formwork 4 By dividing the sliding formwork 4 into short ring elements 20 as seen in the axial direction, it is possible to ensure good maneuverability in curves.
  • such a design of a sliding formwork can also be coupled in a simple manner to other types of sign.
  • the cylinders 13 of the end-formworks 12 can also be activated or additionally acted upon by the additional, optionally partially hardened ones Shell 11 additional driving forces are exerted on the cutting blade 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)
  • Lining And Supports For Tunnels (AREA)
EP90890292A 1989-05-11 1990-10-31 Bouclier d'avancement Withdrawn EP0483445A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT112989A AT397127B (de) 1989-05-11 1989-05-11 Vortriebsschild

Publications (1)

Publication Number Publication Date
EP0483445A1 true EP0483445A1 (fr) 1992-05-06

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ID=3507218

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90890292A Withdrawn EP0483445A1 (fr) 1989-05-11 1990-10-31 Bouclier d'avancement

Country Status (3)

Country Link
EP (1) EP0483445A1 (fr)
AT (1) AT397127B (fr)
DE (1) DE4015203A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0890708A1 (fr) 1997-07-11 1999-01-13 Heerema Ondergrondse Infrastructuren B.V. Procédé, système et dispositif pour la construction de parois dans le sol
CZ302312B6 (cs) * 2010-04-06 2011-02-23 Metrostav A. S. Posuvné bednení dna tunelu

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017203772A1 (de) * 2017-03-08 2018-09-13 Peri Gmbh Betonröhre sowie Schalvorrichtung und Verfahren zur Herstellung einer solchen Betonröhre

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB443158A (en) * 1934-08-22 1936-02-24 Malcolm Mcalpine An improved method of and means for the lining of tunnels, and the like
FR2380413A1 (fr) * 1977-02-15 1978-09-08 Gewerk Eisenhuette Westfalia Procede et dispositif pour le creusement de tunnels, galeries et cavites analogues, avec pose simultanee d'un revetement en beton
DE3012189A1 (de) * 1979-03-29 1980-10-09 Sp Kt Bjuro Glavtonnelmetrostr Vortriebsschild zum errichten von tunnels mit monolithisch gepresster auskleidung
EP0154208A1 (fr) * 1984-02-10 1985-09-11 Alfred Kunz GmbH & Co. Procédé de percement par bouclier avec pose d'un tubage en béton coulé et dispositif pour sa réalisation
EP0301188A1 (fr) * 1987-07-25 1989-02-01 Hochtief Aktiengesellschaft Vorm. Gebr. Helfmann Coffrage pour le revêtement d'un tunnel au moyen de béton coulé sur place

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2555317A1 (de) * 1975-12-09 1977-06-23 Gewerk Eisenhuette Westfalia Verbauschild fuer das auffahren von tunneln, stollen u.dgl. sowie vortriebsmesser fuer einen verbauschild
DE2702341C3 (de) * 1977-01-21 1980-04-30 Hochtief Ag Vorm. Gebr. Helfmann, 4300 Essen Stirnschalung zum Einbringen von Ortbeton beim Tunnelvortrieb
DE2706024C2 (de) * 1977-02-12 1986-01-30 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Messerschild-Vortriebseinrichtung
DE2725827C2 (de) * 1977-06-08 1985-10-24 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Messerschild-Vortriebseinrichtung
DE2743225A1 (de) * 1977-09-26 1979-04-05 Ruhrkohle Ag Schreitender ausbautunnel
SU812929A1 (ru) * 1978-01-06 1981-03-15 Специальное Конструкторско-Технологическоебюро "Главтоннельметростроя" Опалубка передвижна
DE2913091A1 (de) * 1979-04-02 1980-10-16 Gewerk Eisenhuette Westfalia Verfahren und vorrichtung zum auffahren und ausbauen mit ortbeton von tunnels, unterirdischen strecken o.dgl.
BG34701A1 (en) * 1979-05-17 1983-11-15 Sp Kt Bjuro Glavtonnelmetrostr Movable shuttering
DE3023026C2 (de) * 1980-06-20 1982-09-16 Bilfinger + Berger Bauaktiengesellschaft, 6800 Mannheim Verfahren und Einrichtung zur Herstellung einer Ortbetonauskleidung für eine im Schildvortriebsverfahren aufzufahrende Tunnelröhre
DE3025922A1 (de) * 1980-07-09 1982-01-28 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Einrichtung zur steuerung der hydraulischen stirnschalungszylinder beim einbringen einer ortbetonauskleidung in unterirdischen bauwerken, wie vor allem tunnels, stollen, untertagestrecken u.dgl.
DE3342903C2 (de) * 1983-11-26 1985-10-10 Hochtief Ag Vorm. Gebr. Helfmann, 4300 Essen Entkoppelungseinrichtung zum Entkoppeln der Bewegung des Vorlaufschildes und der Stirnschalung für eine Vortriebsmaschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB443158A (en) * 1934-08-22 1936-02-24 Malcolm Mcalpine An improved method of and means for the lining of tunnels, and the like
FR2380413A1 (fr) * 1977-02-15 1978-09-08 Gewerk Eisenhuette Westfalia Procede et dispositif pour le creusement de tunnels, galeries et cavites analogues, avec pose simultanee d'un revetement en beton
DE3012189A1 (de) * 1979-03-29 1980-10-09 Sp Kt Bjuro Glavtonnelmetrostr Vortriebsschild zum errichten von tunnels mit monolithisch gepresster auskleidung
EP0154208A1 (fr) * 1984-02-10 1985-09-11 Alfred Kunz GmbH & Co. Procédé de percement par bouclier avec pose d'un tubage en béton coulé et dispositif pour sa réalisation
EP0301188A1 (fr) * 1987-07-25 1989-02-01 Hochtief Aktiengesellschaft Vorm. Gebr. Helfmann Coffrage pour le revêtement d'un tunnel au moyen de béton coulé sur place

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0890708A1 (fr) 1997-07-11 1999-01-13 Heerema Ondergrondse Infrastructuren B.V. Procédé, système et dispositif pour la construction de parois dans le sol
US6357965B2 (en) 1997-07-11 2002-03-19 Heerema Ondergrondse Infrastructuren B.V. Method, system and device for building a wall in the ground
CZ302312B6 (cs) * 2010-04-06 2011-02-23 Metrostav A. S. Posuvné bednení dna tunelu

Also Published As

Publication number Publication date
ATA112989A (de) 1993-06-15
DE4015203A1 (de) 1990-11-15
AT397127B (de) 1994-02-25

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