EP0764761B1 - Machine de forage de tunnels - Google Patents

Machine de forage de tunnels Download PDF

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Publication number
EP0764761B1
EP0764761B1 EP96114882A EP96114882A EP0764761B1 EP 0764761 B1 EP0764761 B1 EP 0764761B1 EP 96114882 A EP96114882 A EP 96114882A EP 96114882 A EP96114882 A EP 96114882A EP 0764761 B1 EP0764761 B1 EP 0764761B1
Authority
EP
European Patent Office
Prior art keywords
pressure
conveyor
tunnel
region
compressed air
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
EP96114882A
Other languages
German (de)
English (en)
Other versions
EP0764761A1 (fr
Inventor
Werner Leipe
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 EP0764761A1 publication Critical patent/EP0764761A1/fr
Application granted granted Critical
Publication of EP0764761B1 publication Critical patent/EP0764761B1/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
    • E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
    • E21D9/13—Devices for removing or hauling away excavated material or spoil; Working or loading platforms using hydraulic or pneumatic conveying means
    • 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 tunnel boring machine the type corresponding to the preamble of claim 1.
  • the invention is based, also in Cases of penetrating groundwater, the drilling material with only one to be able to discharge a small amount of water.
  • the conveyor is usually up to the discharge facility filled with water.
  • the invention offers the rising end section of the conveyor the possibility within the conveyor maintain a water level above which there is only compressed air.
  • the drilling material on or in the Conveyor device emerges from the water level Water and loses the water it carries, which flows back into the water level. That in the Drilling material entering the lock is still wet and drags but no more large amounts of water, so that the pollution of the following funding institutions Sludge-like or mud-like cuttings are essential is reduced.
  • the "rising end section" of the conveyor can in particular reproduced in claim 2 Be realized in such a way, that is, the conveyor two individual conveyors connected in series of which the second begins below the first. This creates the constructive prerequisites for training a siphon and the training of a sufficient one Housing height of the second conveyor in the relatively narrow Improved tunnel profile.
  • the sponsors come for the funding of a material such as well-known constructions from tunnel construction into consideration, but in particular a belt conveyor for the first conveyor and a scraper conveyor for the rising second sponsor.
  • the formation of the siphon is according to Claim 3 useful.
  • the top of the case of the second conveyor runs relatively close to the second Conveyor, so that at the transition to the housing part of the first Conveyor the siphon point can be easily formed.
  • the device for discharging the drilling material can according to claim 4 comprise a double lock.
  • Claim 5 gives a recommended dimensioning of Case height, i.e. the difference between the siphon point and the highest point of the bottom of the case in the area of the lock.
  • the water level must be in the area this case height remain. If it falls under the siphon mirror, the compressed air can go a rising path directly take and blow in through the housing of the first conveyor the area of the drill head. The water level rises to above the highest point of the bottom of the case of the second conveyor, the water flows into the Lock and arrives at the conveying device, what should be avoided right now. Larger amounts of compressed air can easily with tolerance of about 0.1 bar can be controlled.
  • Corresponds to 0.1 bar a height of a water column of 1 m. At least one height of 2 m must be in the area of the rising end section the conveyor as scope for the water level be available.
  • the invention is also embodied in an operating method according to claim 6, in which the water level held in the mentioned rising end area becomes.
  • the tunnel boring machine according to the invention enables but also another mode of operation without changes, which is set out in claim 7. If only in mountain areas with not too large groundwater and relatively dense rock formations the pressure in the rising End area is increased more, so can this way the groundwater from the area of the first Conveyor and the drill head completely displaced and in that mountains are pushed back far enough so that the Drill head not under water, but only under a certain one Air pressure can work, which offers advantages.
  • the tunnel boring machine designated as a whole by 100 is used to drive up a tunnel 1 in a mountain range 2. Of the tunnel boring machine 100, only those are for the invention important components reproduced.
  • the face of the village 3 adjacent front part of the tunnel boring machine 100 has an axis A that is essentially center-line M of the tunnel 1 matches, the latter does not have to be straight, but also runs in a curve can.
  • disc-shaped drill head 10 rotatable about the axis A. stored, on its side facing the face 3 with drilling tools 11, 12, 13, 14, 15 of suitable type and arrangement is equipped that shred the mountains.
  • the Drill head 10 faces backwards, i.e. from the face 3 extending against the direction of advance Bearing approach 16 on which it is in the machine housing 20 is stored.
  • a collecting device 17 provided for the drilling material into which the loosened drilling material either falls directly into it or with a kind Shovel 18 picks up from the bottom of the tunnel 1.
  • the collection facility 17 discharges the drilling material into a funnel 19, from which the drilling material 3 in the indicated by the points Way to the feed area 31 of a first conveyor 30 falls in the form of a horizontal conveyor belt.
  • the machine housing 20 is with one as a whole 6 designated shield arrangement on the inner circumference of the tunnel 1 supported.
  • this shield arrangement is through a transverse wall 27 a pressure bulkhead 21 is formed, which of the Pass through bearing boss 16 against the direction of advance is.
  • the outer circumference is sealed by seals 22 of the bearing approach 16 compared to that for the Reaching through the bearing shoulder 16 in the transverse wall 27 left opening.
  • the drive of the drill head 10 around Axis A is done by means of a hydraulic motor 23.
  • An entrance to the area on the face side behind the transverse wall 27 is possible via locks 24, 25, 26.
  • segment setting device 4 Immediately behind the front part of the tunnel boring machine a segment setting device 4 is provided, the segments 5 indicated by elongated rectangles to support the previously drilled tunnel wall.
  • the first conveyor 30 throws the drilling material B at his Dispensing end 32 onto the feeding area 41 of a second one Conveyor 40 from.
  • the task area 41 lies accordingly with a distance below the delivery end 32.
  • the second conveyor 40 is a substantially rectilinear diagonally upwards through a passage of the segment setting device 4 passing scraper conveyor that the Drilling material B at its discharge end 42 at the top into a as a whole sheds 50 double lock.
  • the double lock 50 comprises a first lock 51 with a vertical, located below the discharge end 42 Storage slot 52, which is at the lower end by a suspended, partially cylindrical locking slide 53 is lockable.
  • the drilling material B collects in the the drawing apparent way on the slide 53 up to a certain amount in a kind of temporary storage on.
  • the slide valve 53 can its pivot axis 54 are shifted to a position 53 ', in which he has the cross section of the storage shaft 52nd releases, so that the accumulated drillings B in one Storage slot 56 of an underlying second lock 55 falls, which in turn by a slide gate 57 is closed, hanging about an axis 58 is pivotally mounted and reproduced from the solid Locked position 57 in the dashed line Open position 57 'can be brought. That on the Locking slide 57 dropped drillings falls open slide valve 57 on the loading area 71 a subsequent conveyor 70, which is the drilling material B. the tunnel boring machine 100 to the rear for removal through the already opened tunnel.
  • the entire conveyor line from the collection facility 17 to the lock 50 is of a pressure-tight housing 60 surround, which is a first, the first conveyor 30 enclosing housing part 61, one of which in the Drawing right end going vertically downwards outgoing shaft 62 and a second conveyor 40 surrounding rising housing part 63 includes, which in the Double lock 50 merges.
  • the housing part 61 passes through the transverse wall 27 and extends below the funnel 19, wherein the housing part 61 and the transverse wall 21 are pressure-tight are interconnected.
  • the double lock 50 is also pressure-tight.
  • the slide valve 53 shifts within a pressure-tight housing part 59 and can be inside the same can be opened without the in the housing part 63 prevailing pressure blows out, provided the slide valve 57 is closed.
  • the housing part 63 forms a on its top lowest point 64 with a level 65. Furthermore, that forms Housing part 63 has a highest point 66 on its underside with a level 67. The level difference is denoted by h.
  • Compressed air can now be pressed in through a connection 68 in the upper region of the housing part 63, which presses the water level S p back through the housing part 63, as can be seen from the drawing. How far the water level S P is pushed back at a certain pressure of the compressed air depends on the back pressure of the groundwater in the area 0. At a certain air pressure, an equilibrium is established.
  • the second conveyor 40 forms a siphon, the lowest point 64 of which is located at level 65. If the water level S p falls below the level 65, the compressed air above the water level can escape directly up to range 0 and blow off unused and undesirably. 65 is the lower limit of the permissible height of the water level S p during normal operation.
  • the drilling material B is now conveyed on the second conveyor 40 during operation, its upper run carrying the drilling material B emerges from the water level S p and loses the water which is carried along and which flows back into the amount of water under the mirror S p .
  • the drill material B freed in this way from the large amounts of water is discharged at the discharge end 52 in the manner indicated in the first lock 51 onto the slide slide 53. If a sufficient amount has accumulated there, the amount of drilling material will fall down on the slide slide 57 when the slide slide 53 is brought into position 53 '. Since the slide valve 57 is tight, no significant amount of air escapes to the outside.
  • the closing slide 53 is closed again and then the closing slide 57 is opened, which unloads the quantity of drilling material onto the further conveyor 70. In this way, a drill good reaches this further conveyor 70 without excessive water admixture.
  • a prerequisite for this is that the water level S P is kept within the housing height h. This is done by appropriately dimensioning the pressure at port 68.

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)
  • Earth Drilling (AREA)

Claims (7)

  1. Machine de forage de tunnels (100), comprenant :
    un corps de machine (20),
    une tête de forage (10) rotative, dont la section efficace correspond au profil du tunnel et montée dans le corps (20), autour d'un axe (A) correspondant sensiblement à l'axe médian (M) du tunnel,
    des moyens pour appliquer la tête de forage (10) sur le front de taille, dans la direction d'avancement,
    derrière la tête de forage (10) et appliquée sur celle-ci de manière étanche par l'intermédiaire d'un joint d'étanchéité (22), une cloison (21) étanche à la pression, destinée à retenir par l'action d'air comprimé, l'eau profonde affluant du front de taille (3),
    une installation de transport traversant la cloison de pression (21) jusqu'à atteindre la zone de la tête de forage (10), et destinée à évacuer vers l'arrière les produits du forage (B) à travers la cloison (21),
    un boítier (60) enveloppant l'installation de transport avec étanchéité à la pression, et
    un dispositif (50) situé à l'extrémité de sortie (42) l'installation de transport pour écluser les produits de forage (B) dans l'espace sans pression situé derrière la cloison (21),
    caractérisée en ce que
    l'installation de transport comporte à l'opposé de l'extrémité de sortie (42) une partie terminale (40) ascendante formant siphon, et qui peut être remplie par de l'air comprimé à une pression adaptée à celle de l'eau profonde affleurante.
  2. Machine de forage selon la revendication 1,
    caractérisée en ce que
    l'installation de transport est divisée en deux transporteurs (30, 40) logés dans un boítier commun (60) étanche à la pression, le second transporteur (40) ayant sa zone de réception (41) placée à une certaine distance en dessous de l'extrémité de sortie (32) du premier transporteur (30), et constituant la partie terminale de l'installation de transport.
  3. Machine de forage selon la revendication 1 ou 2,
    caractérisée en ce que
    le boítier commun (60) étanche à la pression présent, sur sa surface supérieure, dans la zone de transition entre les transporteurs (30, 40) un point (64) considère comme étant le plus bas.
  4. Machine de forage selon l'une quelconque des revendications 1 à 3,
    caractérisée en ce que
    le dispositif (50) servant à écluser les produits du forage (B) comprend une écluse double (51, 55) disposée en dessous de l'extrémité de sortie (42) du second transporteur (40).
  5. Machine selon l'une quelconque des revendications 1 à 4,
    caractérisée en ce que
    la hauteur (h) du boítier dans sa partie terminale ascendante au moins dans la zone du second transporteur 40 est au moins celle de la colonne d'eau correspondant à la plage de tolérance de la pression de l'air comprimé qui peut être maintenue dans la zone du second transporteur (40).
  6. Procédé pour faire fonctionner une machine de forage selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce que
    la pression de l'air comprimé est choisie de manière que le niveau (SP) de l'eau soit maintenu dans la zone de la partie terminale ascendante (40) de l'installation de transport.
  7. Procédé pour faire fonctionner une machine de forage (100) selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce que
    la pression de l'air comprimé est choisie de manière à refouler l'eau profonde dans la zone du front de taille (3) et à maintenir largement sans eau la zone de travail de la tête de forage (10).
EP96114882A 1995-09-20 1996-09-17 Machine de forage de tunnels Expired - Lifetime EP0764761B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19534814A DE19534814A1 (de) 1995-09-20 1995-09-20 Tunnelbohrmaschine
DE19534814 1995-09-20

Publications (2)

Publication Number Publication Date
EP0764761A1 EP0764761A1 (fr) 1997-03-26
EP0764761B1 true EP0764761B1 (fr) 2001-04-04

Family

ID=7772616

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96114882A Expired - Lifetime EP0764761B1 (fr) 1995-09-20 1996-09-17 Machine de forage de tunnels

Country Status (5)

Country Link
EP (1) EP0764761B1 (fr)
JP (1) JPH09217589A (fr)
AT (1) ATE200337T1 (fr)
DE (2) DE19534814A1 (fr)
DK (1) DK0764761T3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29903426U1 (de) * 1999-02-25 2000-09-14 Wirth Maschinen- und Bohrgerätefabrik GmbH, 41812 Erkelenz Vorrichtung zum Vortreiben von Strecken, Tunneln o.dgl.
CA2362280A1 (fr) 1999-02-25 2000-08-31 Nikolaus Kleuters Dispositif pour creuser des galeries, des tunnels ou voies analogues
DE50011858D1 (de) * 2000-10-05 2006-01-19 Herrenknecht Ag Schildvortrieb-Tunnelbohrmaschine
DE10133345A1 (de) 2001-07-12 2003-01-30 Wirth Co Kg Masch Bohr Tunnelbohrmaschine
DE10150685B4 (de) 2001-10-17 2007-06-14 Wirth Maschinen- und Bohrgeräte-Fabrik GmbH Arbeitskopf mit veränderbarem Schneidabstand der Schneidrollen für eine Vorrichtung zum Vortreiben von Strecken, Tunneln oder dergleichen
CN103967498B (zh) * 2014-04-21 2016-03-23 河海大学 一种粗粒土地层中盾构机的带压开舱方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3418180C2 (de) * 1984-05-16 1994-12-15 Holzmann Philipp Ag Vortriebsschild
DE3428431A1 (de) * 1984-08-01 1986-02-13 Carl Baas GmbH & Co KG, 8882 Lauingen Vorrichtung mit einem ein ringgehaeuse aufweisenden vortriebsschuh
DE3445578A1 (de) * 1984-12-14 1986-06-19 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Schildvortriebseinrichtung
DE3514563A1 (de) * 1985-04-23 1986-10-30 Strabag Bau-AG, 5000 Köln Tunnelvortriebsmaschine
DE3623283A1 (de) * 1986-07-10 1988-01-28 Bade & Theelen Gmbh Verfahren zum tunnelvortrieb und vorrichtung zur durchfuehrung des verfahrens
FR2607549B1 (fr) * 1986-11-28 1989-02-24 Fives Cail Babcock Perfectionnements aux machines pour le creusement de tunnels et de galeries
US5203614A (en) * 1991-06-17 1993-04-20 The Robbins Company Tunneling machine having liquid balance low flow slurry system
DE4439865C2 (de) * 1994-11-08 1997-07-31 Alp Westf Berg & Tunneltechnik Fördereinrichtung für eine Schildvortriebsmaschine

Also Published As

Publication number Publication date
DE59606695D1 (de) 2001-05-10
ATE200337T1 (de) 2001-04-15
JPH09217589A (ja) 1997-08-19
EP0764761A1 (fr) 1997-03-26
DE19534814A1 (de) 1997-03-27
DK0764761T3 (da) 2001-05-07

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