EP0772730B1 - Bouclier - Google Patents

Bouclier Download PDF

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Publication number
EP0772730B1
EP0772730B1 EP95924854A EP95924854A EP0772730B1 EP 0772730 B1 EP0772730 B1 EP 0772730B1 EP 95924854 A EP95924854 A EP 95924854A EP 95924854 A EP95924854 A EP 95924854A EP 0772730 B1 EP0772730 B1 EP 0772730B1
Authority
EP
European Patent Office
Prior art keywords
chamber
working chamber
shield according
driving shield
opening
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.)
Expired - Lifetime
Application number
EP95924854A
Other languages
German (de)
English (en)
Other versions
EP0772730A1 (fr
Inventor
Albrecht Heinrichs
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.)
Mhwirth GmbH
Original Assignee
Wirth Maschinen und Bohrgeraete Fabrik 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 Wirth Maschinen und Bohrgeraete Fabrik GmbH filed Critical Wirth Maschinen und Bohrgeraete Fabrik GmbH
Publication of EP0772730A1 publication Critical patent/EP0772730A1/fr
Application granted granted Critical
Publication of EP0772730B1 publication Critical patent/EP0772730B1/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
    • 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
    • E21D9/0642—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end
    • E21D9/065—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end with devices for provisionally supporting the front face

Definitions

  • the invention relates to a jacking shield the type corresponding to the preamble of claim 1.
  • the rock is attached to the face using a mechanical Removal device loosened and via pipes a separation plant located outside the tunnel room pumped. Here are rock and bentonite suspension Cut.
  • the support fluid then becomes the Mining chamber supplied after passing through if necessary Add new bentonite suspension to the requirements of the rock standing on the face was adjusted.
  • DE-PS 24 31 512 a tunneling shield is known in which the rock punctiform by means of a swiveling on all sides Removal arm of the rotatably mounted cutting head released or dismantled and sucked off directly on the cutting head and by from there to the rear from the excavation space of the tunnel shield is promoted.
  • this jacking shield is that that the support fluid only in the immediate cutting area comes into contact with the loosened rock and can only be contaminated in this area. In the remaining liquid remains in all other areas of the extraction chamber unaffected by the loosened rock, so that it is not mixed and burdened with it. Since the Support fluid hereby their support and sealing properties longer than with previously known jacking plates retains and therefore renewed or supplemented less often needs to be distinguished from the DE-PS 24 31 512 known removal sign due to particularly low Operating costs during its deployment.
  • Another tunneling shield is from DE 32 21 494 C1 known.
  • This tunneling shield includes one with one Extraction head provided extraction arm, which on an orbit the working face is movable. To remove the mining material is the mining head one while moving through falling down through the lower part of the orbit coarse mining material and during moving through through the upper part of the orbit that Dismantling material assigned to the clearing bucket that is emitted to the rear.
  • the invention is therefore based on the object to develop such a device so that on the one hand Work to remove bouldering from the quarry of the jacking plate and maintenance work from Operators can be made without it a lowering of the thixotropic liquid is required.
  • the tunneling shield according to the invention according to claim 1 is a separate working chamber in the mining chamber provided, which against the rear, pressure-free Area of the tunnel shield over at least one security gate is sealed and which one down has directed opening, through which they with the removal chamber communicates.
  • the work chamber is with one for the use of suitable fluid medium by operating personnel - usually compressed air or water - pressurizable. While the jacking plate is being dismantled, the Working chamber also with the fluid support medium filled.
  • the supporting medioum is supported by the Filling the working chamber with the for the use of the Operator suitable fluid medium under one Pressure that corresponds to the pressure of the support medium the downward opening of the working chamber this displaces without the supporting effect of the support medium would be restricted to the working face.
  • the operating personnel can now go through a security gate from the pressure-free area of the heading shield into the Inside the work chamber and go down through it directed opening of the working chamber the desired activities make.
  • Jacking shield is the subject of the claim 3.
  • the Chamber of Labor has one of the Removal chamber independent chamber housing, which in one provided in the transverse wall of the tunnel shield Bearing opening is at rest.
  • the working chamber housing is optional from the position inside the excavation chamber towards a publisher axis that is roughly in the direction the central axis of the heading shield runs in one essentially outside the mining chamber Position under the seal opposite the bearing opening relocatable. This measure prevents the Working chamber for this during normal mining operations excessively limited space required in the excavation chamber.
  • the Driving shield in a particularly advantageous embodiment of the Driving shield according to claim 5 is the opening of the Working chamber facing storage area of the storage opening so dimensioned that this in the essentially outside the Dismantling chamber position of the working chamber The opening is completely covered and the working chamber with it seals against the environment.
  • the Chamber of Labor can measure the use of the Fluid medium that allows operating personnel - such as compressed air or water - already filled, and the operating staff can the work chamber through the security gate Already seek this out before taking it into the mining area Opening their opening is introduced.
  • the face of the face facing the working face Chamber housing as perpendicular to the central axis of the tunnel shield training extending support wall and to move the working chamber so far into the mining chamber that the outer surface of the end wall against the working face is pressed.
  • the displacement axis is preferably used hydraulic device.
  • Cut-out obstacles, the so-called boulder, as well complete cutting heads can be opened if necessary easy way to remove from the pit when in the Working chamber a gripping device that can be lowered through its opening is provided.
  • the dismantling arm can only be pivoted about a pivot axis because this measure a particularly simple and robust storage of the removal arm on the cross wall allowed.
  • the removal arm is pivoted at a preferred embodiment of claim 14 by a hydraulic device.
  • a preferred embodiment of the tunneling shield according to claim 15 thereby has an increased drilling capacity on that several, independently of each other on the carrier plate pivotable support arms with attached to them Cutting heads are provided.
  • the one designated 100 as a whole in the drawing Driving shield comprises a tubular shield jacket 1, which has a transverse wall 2 in its central region, which a front extraction chamber 3 from the rear Part 4 of the tunneling shield 100 is cut off.
  • the front one Mining chamber 3 extends straight up to the face 5 and is in the mining operation with a support medium, for example a thixotropic liquid, filled, for the one in the transverse wall not shown in the drawing Inlet is provided.
  • a support medium for example a thixotropic liquid, filled, for the one in the transverse wall not shown in the drawing Inlet is provided.
  • a support medium for example a thixotropic liquid
  • the compensation chamber 39 communicates with the Mining chamber 3 such that to compensate for changes in volume the extraction chamber 3 support fluid between the Chambers an exchange of support fluid takes place. At major volume changes in the mining chamber or in one considerable loss of support fluid through the face the pressure in the extraction chamber can be reduced by additional Pumping or suctioning of support liquid via the inlet can be set.
  • Symmetrical to the central axis M of the tunnel shield 100 is a carrier plate in the transverse wall 2 via ball bearings 7 8 rotatably mounted and via a sealing ring 9 sealed against the transverse wall 2.
  • the rotary drive of the A hydraulic motor 6 serves as the support plate 8.
  • a excavation arm 10 is arranged on the face of the rock, one rotatable about the longitudinal axis L of the extraction arm Cutting head 11 includes and on the carrier plate by means a hinge assembly 12 parallel to that through the the face of the support plate 8 facing the working face and perpendicular to one radially from the center of rotation of the support plate intersecting the longitudinal axis L of the extraction arm Swivel axis is pivotally mounted.
  • the pivoting of the Dismantling arm 10 is done by one at the back of the Carrier plate 8 arranged hydraulic cylinder 13.
  • Das rear end 14 of the removal arm 10 is through the support plate 8 in the rear part 4 of the tunneling shield 100 through an opening 15 machined into the carrier plate 8 passed through.
  • For sealing it is in the area of Opening part of the extraction arm 10 as a spherical Seat 16 executed and via an annular seal arrangement 17 sealed against the carrier plate 8.
  • the extraction arm two telescopically interlocking Arm segments 10 ', 10 ", by means of which the length of the removal arm - As shown by the dashed line in Fig. 1 different positions of the extraction arm 10 and Cutting head 11 can be seen - for example with the help of hydraulic Actuators not shown in the drawing are varied.
  • the carrier plate 8 has above the removal arm 10 an area widened in the direction of the bore axis 19 in which a bearing opening 20 is incorporated, which is the storage of one along a displacement axis V in the bearing opening 20 displaceable working chamber 21st serves.
  • the displacement axis V above the Center axis M of the tunneling shield and runs - from viewed from front to back - slightly sloping upwards.
  • the Working chamber 21 points at that shown in the drawing Embodiment a cylindrical segment Housing 22, whose lower flat 23 in the front Area 24 has a downward opening 25.
  • the rear region 26 of the working chamber 21 is a double person lock 27 trained.
  • the working chamber 21 is in a manner not shown in the drawing a device for loading, also not shown the working chamber 21 with a fluid medium, which gives people access to the working chamber 21 allows, such as compressed air or water, connected.
  • a fluid medium which gives people access to the working chamber 21 allows, such as compressed air or water, connected.
  • the position of the working chamber 21 is the lower opening 25 from the lower bearing surface 28 of the bearing opening 20 completely covered and both to the chamber 3 and to the rear part 4 of the jacking shield via sealing rings 29, which extends around the entire circumference of the housing 22 extend the working chamber 21, sealed.
  • This Position of the working chamber 21 can be operated by the operating personnel Double lock 27 in the front area 24 of the working chamber and then use a suitable one fluid medium can be filled under a pressure which the pressure of the support liquid located in the extraction chamber 3 corresponds.
  • the fluid medium in the working chamber has the same pressure as that in the mining chamber support medium for supporting the working face 5, does not penetrate this or only slightly working chamber 21 opened downward, and the operating personnel can carry out maintenance or repair work make the cutting head 11 without lowering it the support fluid in the extraction chamber 3 is required.
  • a gripping device that can be lowered through its opening 31 provided, which for the inclusion of a dismantled Cutting head or not shown in the drawing larger pieces of overburden is provided.
  • the housing 22 of the working chamber 21 has a front Front side 32, which over the outer circumference of the protrudes cylindrical segment-shaped housing 22 and thus at the same time the additional support of the face 5 serves when the working chamber 21 so far into the mining chamber 3 is pushed in that the end face 32 on the Face 5 is present.
  • a double person lock 35 arranged through which - if necessary - after lowering the support fluid, operating personnel directly can get into the mining chamber 3.
  • a stone lock 36 is provided, through which larger Scraps in the rear part 4 of the tunnel shield can be brought.
  • the tunneling shield is propelled via on the fixed part 2 of the transverse wall 2 'attacking hydraulic Feed cylinder 37, which is with her other End at the front of the existing tubbing extension 38 support.
  • the Driving shield either pushed forward continuously, or Dismantling and feed take place in succession. Then there is one significant acceleration of the propulsion can be achieved that the ground initially only along the shield edge 39 forming front end edge of the shield mantle 1 is milled, for which purpose the cutting head 11 in the Fig. 1 shown in dashed lines, exposed position and then by rotating the carrier plate along the blade edge is moved.

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)
  • Liquid Crystal (AREA)
  • Valve Device For Special Equipments (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Claims (15)

  1. Bouclier de percement comprenant dans sa partie avant une chambre d'abattage (3) délimitée à l'arrière par une paroi transversale (2) étanche et en avant par le front de taille (5) celle chambre contenant, pour abattre le matériau du sol composant le front de taille (5), un bras d'abattage (10) monté de manière étanche sur la paroi transversale (2) et réglable en longueur, ce bras portant une tête rotative en coupe (11) et pouvant, en service, se déplacer en direction de tout point de front de taille (5) à l'intérieur d'un fluide de soutien contenu sous pression dans la chambre d'abattage (3),
    caractérisé en ce qu'
    il est prévu dans la chambre d'abattage (3) une chambre de travail (21) qui peut être mise en pression par l'intermédiaire d'un liquide et qui est rendue étanche par rapport à la partie arrière (4) dépourvue de pression, du bouclier, par l'intermédiaire d'un sac à poussière (27) cette chambre de travail présentant une ouverture (25) dirigée vers le bas, par laquelle elle communique avec la chambre d'abattage (3).
  2. Bouclier selon la revendication 1,
    caractérisé en ce que
    l'ouverture (25) a des dimensions permettant d'introduire la tête de coupe (11).
  3. Bouclier selon la revendication 1 ou 2,
    caractérisé en ce que
    la chambre de travail (21) comporte un boítier séparé (22) qui est monté dans une ouverture (20) prévue dans la paroi transversale et formant palier et qui peut, en partant d'une position située à l'intérieur de la chambre d'abattage (3) se déplacer selon la direction d'un axe de déplacement (V) orienté sensiblement comme l'axe médian (M) du bouclier (100) pour venir occuper une position située essentiellement à l'extérieur de la chambre d'abattage (3) avec étanchéité le long de l'ouverture (20).
  4. Bouclier selon la revendication 3,
    caractérisé en ce que
    le centre de l'ouverture (20) est situé au-dessus de l'axe médian (M) du bouclier (100) et l'axe de déplacement (V), vu depuis le front de taille (5), est légèrement en pente vers le haut.
  5. Bouclier selon l'une quelconque des revendications 3 ou 4,
    caractérisé en ce que
    la portée (28) formant palier de l'ouverture (25) située en face de l'ouverture (25) de la chambre de travail (21) recouvre totalement cette ouverture (25) et obture la chambre de travail (21) de manière étanche par rapport à ce qui l'entoure, quand la chambre de travail (21) est située essentiellement à l'extérieur de la chambre d'abattage.
  6. Bouclier selon l'une des revendication 3 à 5,
    caractérisé en ce que
    la paroi frontale du boítier de chambre, située en face du front de taille (5) est constituée par une paroi de soutien (32) perpendiculaire à l'axe médian du bouclier, la chambre de travail (21) pouvant se déplacer dans la chambre d'abattage (3) jusqu'à ce que la face externe de la paroi frontale (32) soit appliquée sur le front de taille (5).
  7. Bouclier selon la revendication 6,
    caractérisé en ce que
    la paroi frontale (32) du boítier (22) située en face du front de taille (5) s'étend au-delà de la périphérie de la chambre de travail (21).
  8. Bouclier selon une des revendications 3 à 7,
    caractérisé en ce qu'
    un vérin hydraulique (30) assure le déplacement de la chambre de travail.
  9. Bouclier selon une des revendications 1 à 8,
    caractérisé en ce qu'
    il est prévu dans la chambre de travail (21) un dispositif de prise (31) pouvant descendre à travers l'ouverture (25) de la chambre et saisir une tête de coupe (11) ou d'assez gros morceaux de déblais.
  10. Bouclier selon une des revendications 1 à 9,
    caractérisé en ce qu'
    au moins un bras d'abattage (10) pouvant basculer au moins autour d'un axe est monté sur une plaque porteuse (8) en dehors du milieu de cette plaque qui elle-même est montée avec étanchéité dans la paroi transversale (2), en pouvant tourner à peu près autour de l'axe médian (M).
  11. Bouclier selon la revendication 10,
    caractérisé en ce qu'
    au moins un bras d'abattage (10) est pivotable sur un axe de rotation.
  12. Bouclier selon la revendication 11,
    caractérisé en ce que
    l'axe de basculement est d'une part parallèle à la surface de la plaque porteuse (8) tournée vers le front de taille (5), d'autre part perpendiculaire à une droite partant radialement du centre de rotation de la plaque porteuse et coupant l'axe longitudinal (L) du bras d'abattage (10).
  13. Bouclier selon une des revendications 10 à 12,
    caractérisé en ce que
    le bras d'abattage (10) est monté sur la plaque porteuse (8) avec décalage vers l'extérieur par rapport à l'axe médian (M) du bouclier (100) d'environ la moitié du rayon du perçage.
  14. Bouclier selon une des revendications 10 à 13,
    caractérisé en ce qu'
    il est prévu un dispositif hydraulique (13) pour basculer le bras d'abattage (10).
  15. Bouclier selon une des revendications 10 à 14,
    caractérisé en ce que
    plusieurs bras d'abattage basculant indépendamment les uns des autres sont montés sur la plaque porteuse.
EP95924854A 1994-07-27 1995-07-12 Bouclier Expired - Lifetime EP0772730B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4426497A DE4426497C2 (de) 1994-07-27 1994-07-27 Vortriebsschild
DE4426497 1994-07-27
PCT/DE1995/000909 WO1996003570A1 (fr) 1994-07-27 1995-07-12 Bouclier

Publications (2)

Publication Number Publication Date
EP0772730A1 EP0772730A1 (fr) 1997-05-14
EP0772730B1 true EP0772730B1 (fr) 1998-12-16

Family

ID=6524197

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95924854A Expired - Lifetime EP0772730B1 (fr) 1994-07-27 1995-07-12 Bouclier

Country Status (5)

Country Link
EP (1) EP0772730B1 (fr)
JP (1) JP2925744B2 (fr)
AT (1) ATE174657T1 (fr)
DE (2) DE4426497C2 (fr)
WO (1) WO1996003570A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2758586B1 (fr) * 1997-01-23 1999-03-26 Doris Engineering Sas de communication entre deux espaces a des pressions differentes
NL2001901C (nl) * 2008-08-20 2010-03-10 Leonardus Karel Van Tol Inrichting en werkwijze voor het aanbrengen van een uitgraving.
CN109882189B (zh) * 2019-02-27 2020-06-12 中铁工程装备集团有限公司 一种适用于断层破碎带的马蹄形半断面盾构机及施工方法
CN109915157B (zh) * 2019-03-18 2023-12-19 天津大学 一种用于盾构机滚刀的自动换刀装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2907768A1 (de) * 1979-02-28 1980-09-04 Holzmann Philipp Ag Vortriebsschild
US4283090A (en) * 1979-10-01 1981-08-11 The Robbins Company Conveyor mounted excavator
DE3221494C1 (de) * 1982-06-07 1983-12-22 Philipp Holzmann Ag, 6000 Frankfurt Vortriebsschild
AT384274B (de) * 1985-10-14 1987-10-27 Voest Alpine Ag Schildvortriebsmaschine
DE3831725A1 (de) * 1988-09-17 1990-03-22 Holzmann Philipp Ag Vortriebsschild
DE4427070C1 (de) * 1994-08-01 1995-06-08 Wirth Co Kg Masch Bohr Schildvortriebsmaschine mit einer mechanischen Abstützvorrichtung der Ortsbrust

Also Published As

Publication number Publication date
DE4426497A1 (de) 1996-02-01
DE4426497C2 (de) 1996-12-12
JP2925744B2 (ja) 1999-07-28
JPH09508188A (ja) 1997-08-19
ATE174657T1 (de) 1999-01-15
WO1996003570A1 (fr) 1996-02-08
DE59504576D1 (de) 1999-01-28
EP0772730A1 (fr) 1997-05-14

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