EP0774043B1 - Vortriebsschild - Google Patents
Vortriebsschild Download PDFInfo
- Publication number
- EP0774043B1 EP0774043B1 EP95924186A EP95924186A EP0774043B1 EP 0774043 B1 EP0774043 B1 EP 0774043B1 EP 95924186 A EP95924186 A EP 95924186A EP 95924186 A EP95924186 A EP 95924186A EP 0774043 B1 EP0774043 B1 EP 0774043B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- driving shield
- partition
- chamber
- tunnelling
- shield according
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Definitions
- the invention relates to a jacking shield the type corresponding to the preamble of claim 1.
- the tunnel construction in loose rock has been around for decades shield driving is available. More recently for this, tunneling signs with a liquid-supported face developed. They allow tunnel cross sections in non-stable soils within the water table largely without using compressed air, injections or icing. These tunneling signs are with one to the tunnel sealed off pressure chamber for a supporting fluid, the pressure of the pending earth and Adjust and maintain water pressure accordingly becomes.
- a support liquid usually find thixotropes Liquids - mostly a bentonite suspension - use, which, depending on the type of loose rock, from the face penetrates the rock from a certain depth.
- the layer of rock permeated by the bentonite suspension - the so-called filter cake - stabilizes the face, which causes uncontrolled rock collapse from the Face to be avoided reliably.
- the rock is attached to the face using a mechanical Removal device loosened and via pipes a separation system located outside the tunnel room pumped. Here are rock and bentonite suspension Cut.
- the support fluid then becomes the mining chamber again fed after adding if necessary of new bentonite suspension to the requirements of the face was adapted to the rock.
- DE-PS 24 31 512 a tunneling shield is known in which the rock is punctiform by means of a dismantling arm which can be pivoted on all sides rotatably mounted cutting head released or dismantled and suctioned off directly at the cutting head and from there conveyed to the rear out of the excavation space of the tunnel shield becomes.
- this tunnel shield is that the support fluid only in the immediate cutting area comes into contact with the loosened rock and therefore only in this area can be contaminated. In all others Areas of the extraction chamber remain the support fluid from the loosened rock unaffected, so that it with this is not mixed and burdened. Because the support fluid hereby their support and sealing properties last longer than previously known tunneling shields and therefore needs to be renewed or added less often the driving shield known from DE-PS 24 31 512 due to particularly low operating costs during of an assignment.
- the disadvantage of this device is that both to remove the boulder as well as for maintenance or Repair work on the removal arm or on the cutting head the thixotropic Liquid at least partly on the face lowered from the mine and through another fluid Medium through which people get into the mining area can - such as Compressed air or water - to be replaced got to. Because in this area the supporting effect of the thixotropic Liquid is missing, basically exists during the aforementioned Working increases the risk of ground collapse and blowing out the maintenance crew during their Can seriously endanger use. This threat will also through the use of a mechanical face mask sheeting in front of the Lowering of the thixotropic liquid not completely eliminated, because this face doesn't cover completely.
- the invention is therefore based on the object to further develop the generic heading shield so that on the one hand, the danger to the team working in the tunnel also significantly reduced in the event of a collapse of the face is, on the other hand, the collapse does not become significant Damage to the jacking shield.
- the tunneling shield according to the invention is in the Mining chamber one in the longitudinal direction of the tunnel shield movable partition between the transverse wall and the face provided which is roughly parallel to the mining space against the non-pressurized part of the transverse wall runs and at least over a substantial part of the inner cross-sectional area of the shield shell extends.
- a partition that can be moved in the longitudinal direction is provided, which the mining chamber in two half-spaces, the volumes are variable due to the movability of the partition, divided.
- An opening is provided in the partition through which the extending to the face Cutting device passes. The opening is designed that through it the mobility of the cutting device is not restricted.
- the partition is in place during the dismantling process usually in a position adjacent to the transverse wall and and the mining process on the working face takes place on the known way. If there is a risk of collapse, the working face may the partition into a position adjacent to the face be relocated without interruption of the Degradation process with the support of the thixotropic liquid requirement. Should the face collapse, it can Loose stone no longer uncontrolled with the already described adverse effects in the entire mining area penetration. It should be the nature of the soil require, so with the tunneling shield according to the invention the dividing wall with the progress of the face of this also be tracked continuously, whereby during the the entire mining process the volume of the mining space before Face, into which loose rock penetrates during a collapse can be kept small.
- Another advantage of the movable partition is in that on an additional, the working face if necessary supporting mechanical breast bracing in the inventive Driving shield can be dispensed with because the Partition if necessary - after interrupting the dismantling process - Can be pressed against the face and this then mechanically stabilized. In this position the partition the thixotropic liquid can be safely removed from the extraction area be removed so that the operating personnel for maintenance or repair work or for removal of bouldering is available.
- a preferred embodiment of the tunneling shield has the features of claim 2. After relocating the cutter, closing the opening and lowering or removing the thixotropic support fluid, can the operating personnel in this embodiment are also safe Maintenance or repair work at the front of the Carry out cutting device.
- sealing element which the outer edge the partition optionally with the inner surface of the Brings shield jacket in plant and through which the the partitions divided half-spaces of the mining chamber against each other are sealable. It is through this configuration of the jacking plate possible, the hydrostatic pressure of the maintain thixotropic fluid on the working face, even if maintenance work involves lowering the support fluid or require an exchange for another fluid medium.
- sealing element as hydraulic or pneumatic activatable hose seal.
- the cutting device consists of at least one under Sealing on the transverse wall pivotally mounted, adjustable in length Dismantling arm, which has a rotating cutting head for the soil material that is used in the in the Removal chamber contained, pressurized support medium the face can be moved to any point.
- the jacking shield is a high mining performance reached and it can be targeted in the working face Cut out any obstacles.
- the dismantling arm can be compared to the Removal arm of a conventional jacking plate, which in middle area of the transverse wall of the tunnel shield on all sides is pivotally mounted, on the one hand essential be shorter. Also its length adjustment range about half the value of the mining arm of a conventional tunneling shield can be reduced, which already increases the manufacturing costs for the extraction arm significantly reduced.
- the pivotability the removal arm around a swivel axis is necessary because by turning the support plate and swiveling the dismantling arm around the swivel axis and corresponding change in length of the extraction arm each point of the working face with the am End of the removal arm arranged cutting head can be approached.
- the dismantling arm can only can be pivoted about a pivot axis, as this Measure a particularly simple and robust storage of the Dismantling arms allowed on the transverse wall.
- a tunneling shield according to the invention 14 is in a bearing opening provided in the transverse wall sealing against this a sliding Working 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 communicated in this inserted state.
- the Working chamber is with one for the use of operating personnel suitable fluid medium - usually compressed air or Water - pressurizable. Used to maintain the cutting head or the use of operating personnel to remove bouldering required in the excavation space, so the working chamber with the one suitable for the use of the operating personnel fluid medium filled under a pressure equal to the pressure of the support medium. The working chamber can then releasing the downward opening into the Mining chamber are shifted without the support medium this penetrates. Since removing or lowering the Support medium from the extraction chamber is therefore not required is, its supportive effect is retained and it can by the downward opening of the working chamber desired activities can be carried out without this the face is supported separately with the help of the partition should be.
- a particularly advantageous arrangement of the bearing opening have the features of claims 16 and 17.
- the order the bearing opening in the carrier plate eccentrically The central axis of the tunneling shield enables on the one hand easy insertion of the when inserted Working chamber below the cutting head opening, on the other hand, the one for the storage of the swiveling Low degradation and for connecting pipes to Removal of the extracted rock through the required space Working chamber restricted as little as possible.
- the Propulsion shield according to claim 18 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 Opening completely covered and thus the working chamber 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 the work chamber can already pass through the security gate seek out before these in the mining space releasing their Opening is introduced.
- the axis of displacement of the working chamber in the direction of the central axis of the tunnel shield runs can in the advantageous embodiment according to claim 20 facing the face wall of the Working chamber should be dimensioned such that this is the partition to the department of the half-spaces of the mining chamber.
- this Trap is used for relocating the partition and the Working chamber only requires a drive, whereby the design effort of the heading shield is reduced is.
- the working chamber Operating personnel always from the partition in front of the Consequences of a collapse of the face are effectively protected, so that maintenance and repair work in the greatest possible Security to be done.
- the relocation of the working chamber and thus the partition serves in the direction of the central axis of the tunnel shield preferably a hydraulic cylinder. Cut-out obstacles, the so-called boulder, as well If necessary, complete cutting heads can be easily Remove way from the excavation space if in the Working chamber a gripping device that can be lowered through its opening is provided (claim 22).
- the partition when it faces the face of the site End face has cutting devices. It is then also possible with the help of the partition through which Partition itself to remove large areas of material from the working face.
- partition Lockable consultation openings distributed over their diameter can be provided by which in the event of an interruption of the mining work, individual consultation drilling into the Face can be brought.
- nozzles may be provided through which a fluid medium hisses the partition and the face can be inserted.
- a fluid medium hisses the partition and the face can be inserted.
- Driving shield comprises a hollow cylindrical shield jacket 1, which has a transverse wall 2 in its central region which has a front extraction chamber from the rear Part 4 of the tunneling shield 100 is cut off.
- the front mining chamber 3 extends straight to the face 5 and is in the mining operation with a support medium, e.g. a thixotropic liquid, filled for in the transverse wall an inlet not shown in the drawing is provided is.
- a support medium e.g. a thixotropic liquid
- the compensation chamber 39 communicates with the mining chamber 3 such that to compensate an exchange of changes in volume of the extraction chamber 3 of support fluid can take place between the chambers. With larger volume changes in the mining chamber or at a significant loss of support fluid through the The pressure in the excavation chamber can be increased by additional Pumping or suctioning of support liquid over the Inlet can be set.
- the rotary drive of the carrier plate serves a hydraulic motor 6.
- the Swiveling of the removal arm 10 is carried out by a Hydraulic cylinder arranged on the back of the carrier plate 13.
- the rear end 14 of the arm 10 is through the support plate 8 in the rear part 4 of the tunneling shield 100 passed through a 15 worked into the carrier plate.
- the one in the area of the opening is used for sealing Part of the removal arm 10 as a spherical seat 16 executed and via an annular seal assembly 17th sealed against the carrier plate 8.
- the tunneling shield 100 comprises the Removal arm two telescopically interlocking arm segments 10 ', 10' ', by means of which the length of the removal arm 10 - like on the basis of the different lines drawn in dashed lines in FIG. 1 Positions of the removal arm 10 and the cutting head 11 evident - e.g. with the help of hydraulic actuators not shown in the drawing can be varied can.
- Suction pipe 18 which the mined soil material immediately at the dismantling or interface and with a arranged in the rear part 4 of the tunneling shield 100, Feed pump, not shown, is connected.
- 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 the storage of a along the displacement axis V in the bearing axis 20 slidable working chamber 21 is used.
- the displacement axis V At the position of the support plate shown in the drawing 8 is the displacement axis V above the central axis M of the tunneling shield and runs parallel to it.
- the working chamber 21 has a cylindrical housing 22 on, in which in the front area 24 one down directed opening 25 is provided.
- the rear area 26 the working chamber 21 is designed as a double person lock 27.
- the working chamber 21 is on one in the drawing not shown manner with a likewise not shown Device for applying a fluid Medium that gives access to people in the work chamber 21, such as Compressed air or water. While the solid position shown in Fig. 1 the working chamber 21 is the lower opening 25 from the lower Bearing surface 28 of the bearing opening 20 completely covered and both the excavation chamber 3 and the rear part 4 of the driving shield via sealing rings 29, which are around the entire circumference of the housing 22 of the working chamber 21 extend, sealed.
- the working chamber 21 can operating personnel via the double lock 27 in the front area 24 of the working chamber and then this with a suitable fluid medium under a Pressure to be filled, which is the pressure in the mining chamber 3 support fluid located corresponds. Subsequently can the working chamber 21 with the help of one in your Center provided feed cylinder 30 in the in Fig. 1st Position shown in dashed lines are shifted at the lower opening 25 of the working chamber 21 is released. The opening can then - as in the drawing is shown in dashed lines - by pivoting and corresponding Length adjustment of the removal arm on his front end arranged cutting head in the working chamber be introduced.
- the fluid medium in the working chamber has the same pressure as that in the mining chamber Support medium for supporting the face 5, penetrates this not or only slightly in the only after working chamber 21 opened at the bottom, and the operating personnel can perform maintenance or repair work on the cutting head 11 make without lowering the support fluid in the mining chamber 3 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 massive front end face 32, which over the outer circumference of the cylindrical housing 22 protrudes radially and itself except for a narrow, outer annular gap 41 over the entire inner cross-sectional area of the shield shell 1 extends.
- a partition 40 is thus through the front end face 32 formed which the mining chamber 3 in two half-spaces 3 ', 3' 'divided.
- For the passage of the removal arm 10 is in the partition 40 a from its central area to radially outwardly extending slot-shaped opening 42 incorporated along which the removal arm 10 can be freely pivoted is.
- a displaceable bulkhead 44th provided which laterally delimit in the opening 42 Grooves 45 guided, after the removal arm 10 has been moved out can be moved into the opening 42.
- the relocation serves a hydraulic cylinder provided in the partition 40 46.
- a sealing element 49 is arranged, which as a hydraulically or pneumatically activated hose seal is trained.
- the scope of the Partition 40 distributed on the side facing the transverse wall 2 Page arranged radially over the outer edge 47 of the Partition movable locking pin 50 is provided, which the locking of the partition in their the face 5 closely adjacent layers, as shown in dashed lines in Fig. 1 is to serve.
- the shield jacket 1 points in the area the front end edge forming a shield edge 39 one radially over the inner circumference of the shield jacket 1 extending, step-shaped diameter reduction 51, whose height is just such that it is in the front Position of the partition 40 substantially the annular gap 41 fills out.
- an all-round groove 52 incorporated with which the locking pin 50 such can be brought into engagement that the partition in Longitudinal direction of the heading shield locked, but around whose center axis M is still rotatable.
- the transverse wall 2 In the fixed part 2 'of the transverse wall 2 is above the working chamber 21 also a double person lock 53 arranged by - if necessary - after Relocation of the partition to its front position and after Lowering the support fluid operating personnel directly into the Mining chamber 3 can reach. In the lower part of the fixed Part 2 'of the transverse wall 2 is also a stone lock 36 provided by which larger pieces of waste in the rear part 4 of the tunneling shield are brought can.
- the advance shield 100 is propelled via the fixed part 2 of the transverse wall 2 'attacking hydraulic Feed cylinder 37, which are at their other ends at the front of the existing tubbing extension 38 support.
- the tunneling shield either pushed forward continuously, or degradation and feed take place successively. Then one is essential Acceleration of the propulsion can be achieved in that the ground initially only along the shield edge 39 forming the front end edge of the shield shell 1 milled is what the cutting head 11 dashed into in Fig. 1 presented, exposed position and then by rotating the carrier plate along the blade edge is moved. This process generally happens with in its rear position partition.
- the partition 40 can also in during the dismantling process brought their front position and even with the help of Locking pin 50 against displacements in the longitudinal direction of the Jacking shield are secured, leaving everyone behind the Partition 40 located parts of the tunnel shield effective are protected from the consequences of a collapse. Is this Rock material along the shield edge by a segment width have already been milled off, a further tubbing expansion can 38 take place while panning accordingly of the removal arm 20 and twisting the support plate 8 the still existing core in the middle of the working face becomes what in turn in both positions of the partition 40 is possible.
- the removal space 3 is for Operating personnel accessible in different ways:
- operating personnel can use the working chamber 21 get into the mining space 3 in the manner already described and working on through opening 25 into the work chamber Perform 21 inserted parts of the tunneling shield 100.
- This does not necessarily mean that supportive effect of the thixotropic support fluid is dispensed with be, however, the scope is feasible
- Working is limited by the fact that the operating personnel use the working chamber 21 can not leave.
- the working chamber 21 is first so far in the Removal space 3 that the partition 40 in their front position using the locking pin 50 and he all-round groove 52 can be locked.
- the sealing element 59 activated, after which the located in the rear half space 3 ' thixotropic support fluid can be lowered or removed, without the support effect of the always in the half space 3 ' before the partition 40 remaining support liquid is reduced becomes.
- the half room now accessible to the operating personnel 3 "of the removal chamber 3 can be used during maintenance work be left unpressurized, or it will - for security reasons -
Description
Claims (25)
- Vortriebsschild mit einer im Vorderteil eines die äußere Gehäusewandung des Vortriebsschildes bildenden Schildmantels (1) durch eine Querwand (2) nach hinten abgedichteten, nach vorn durch die Ortsbrust (5) begrenzten Abbaukammer (3) und einer in dieser angeordneten, zum Abbau des an der Ortsbrust anstehenden Bodenmaterials dienenden Schneidvorrichtung, die beim Betrieb in einem in der Abbaukammer enthaltenen, unter Druck stehenden Stützmedium bewegbar ist,
dadurch gekennzeichnet,
daß in der Abbaukammer (3) eine in Längsrichtung des Vortriebsschildes zwischen der Querwand und der Ortsbrust verschiebbare, eine die Bewegung der Schneidvorrichtung erlaubende Öffnung (42) zum Durchtritt der Schneidvorrichtung aufweisende Trennwand (40) vorgesehen ist, welche etwa parallel zu der Querwand (2) verläuft und die innere Querschnittsfläche des Schildmantels (1) zumindest im wesentlichen überdeckt. - Vortriebsschild nach Anspruch 1, dadurch gekennzeichnet, daß die Schneidvorrichtung zumindest in einer der Ortsbrust (5) dichtbenachbarten Position der Trennwand (40) aus deren Öffnung (42) nach hinten hinausverlagerbar und die Öffnung (42) verschließbar ist.
- Vortriebsschild nach Anspruch 2, dadurch gekenn zeichnet, daß eine Einrichtung vorgesehen ist, durch welche der äußere Rand (47) der Trennwand (40) zumindest in der der Ortsbrust (5) dichtbenachbarten Stellung der Trennwand (40) mit der inneren Oberfläche des Schildmantels (1) abdichtbar ist.
- Vortriebsschild nach Anspruch 3, dadurch gekennzeichnet, daß die Einrichtung ein als hydraulisch oder pneumatisch aktivierbare Schlauchdichtung ausgebildetes Dichtungselement (49) ist, welches wahlweise mit der inneren Oberfläche des Schildmantels (1) in Wirkverbindung bringbar ist und im aktivierten Zustand die durch die Trennwand (40) abgeteilten Halbräume (3',3") der Abbaukammer (3) gegeneinander abdichtet.
- Vortriebsschild nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß Verriegelungselemente (50,52) vorgesehen sind, mittels derer die Trennwand (40) zumindest in der der Ortsbrust (5) dichtbenachbarten Position arretierbar ist.
- Vortriebsschild nach Anspruch 5, dadurch gekennzeichnet, daß die Verriegelungselemente aus über den Umfang der Trennwand verteilten Verriegelungsbolzen (50) bestehen, die wahlweise mit einer in den Innenumfang des Schildmantels (1) eingearbeiteten Umfangsnut (52) in Eingriff bringbar sind.
- Vortriebsschild nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Schneidvorrichtung aus mindestens einem unter Abdichtung an der Querwand (2) verschwenkbar gelagerten, längenverstellbaren Abbauarm (10) besteht, welcher einen drehbaren Schneidkopf (11) für das Bodenmaterial umfaßt, der beim Betrieb in dem in der Abbaukammer (3) enthaltenen, unter Druck stehenden Abstützmedium zu jeder Stelle der Ortsbrust (5) bewegbar ist.
- Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß die Öffnung (42) zum Durchtritt der Schneidvorrichtung langlochförmig ausgebildet und die Trennwand um die Mittelachse (M) des Vortriebsschildes (100) rotierbar ist.
- Vortriebsschild nach Anspruch 8, dadurch gekennzeichnet, daß der mindestens eine Abbauarm (10) zumindest um eine Schwenkachse verschwenkbar außerhalb der Mitte auf einer kreisförmigen Trägerplatte (8) angeordnet ist, welche etwa um die Mittelachse (M) rotierbar und dichtwirkend in der Querwandung (2) gelagert ist.
- Vortriebsschild nach Anspruch 9, dadurch gekennzeichnet, daß der mindestens eine Abbauarm (10) um genau eine Schwenkachse verschwenkbar ist.
- Vortriebsschild nach Anspruch 10, dadurch gekennzeichnet, daß die Schwenkachse parallel zu der durch die der Ortsbrust (5) zugewandten Oberfläche der Trägerplatte (8) und senkrecht zu einer radial vom Drehpunkt der Trägerplatte die Längsachse (L) des Abbauarmes (10) schneidenden Geraden verläuft.
- Vortriebsschild nach einem der Ansprüche 9 bis 11, dadurch gekennzeichnet, daß der Abbauarm (10) radial nach außen von der Mittelachse (M) des Vortriebsschildes (100) etwa um den halben Schildmantelradius versetzt auf der Trägerplatte (8) angeordnet ist.
- Vortriebsschild nach einem der Ansprüche 10 bis 12, dadurch gekennzeichnet, daß die Trennwand (40) verdrehfest an der kreisförmigen Trägerplatte (8) gelagert ist.
- Vortriebsschild nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß eine in einer in der Querwand vorgesehenen Lageröffnung (20) unter Abdichtung gegenüber dieser gelagerte, entlang einer Verlagerungsachse aus einer im wesentlichen außerhalb der Abbaukammer (3) befindlichen Position in die Abbaukammer (3) einschiebbare, mit einem fluiden Medium unter Druck setzbare, gegen den hinteren, druckfreien Teil (4) des Vortiebsschildes (100) über mindestens eine Personenschleuse (27) abgedichtete Arbeitskammer (21) vorgesehen ist, welche eine nach unten gerichtete Öffnung (25) aufweist, über die sie im in die Abbaukkammer eingeschobenen Zustand mit dieser kommuniziert.
- Vortriebsschild nach Anspruch 14, dadurch gekennzeichnet, daß die Öffnung (25) eine zum Einführen des Schneidkopfes (11) geeignete Größe aufweist.
- Vortriebsschild nach Anspruch 14 oder 15, dadurch gekennzeichnet, daß die Lageröffnung (20) in der Trägerplatte (8) angeordnet ist.
- Vortriebsschild nach Anspruch 16, dadurch gekennzeichnet, daß die Lageröffnung (20) exzentrisch zur Mittelachse (M) des Vortriebsschildes angeordnet ist.
- Vortriebsschild nach einem der Ansprüche 14 bis 17, dadurch gekennzeichnet, daß die der Öffnung (25) der Arbeitskammer (21) zugewandte Lagerfläche (28) der Lageröffnung (20) in der im wesentlichen außerhalb der Abbaukammer (3) befindlichen Position der Arbeitskammer (21) die Öffnung (25) vollständig überdeckt und die Arbeitskammer (21) gegen die Umgebung dichtwirkend abschließt.
- Vortriebsschild nach einem der Ansprüche 14 bis 18, dadurch gekennzeichnet, daß die Verlagerungsachse (V) in Richtung der Mittelachse (M) des Vortriebsschildes verläuft.
- Vortriebsschild nach einem der Ansprüche 14 bis 19, dadurch gekennzeichnet, daß die der Ortsbrust (5) zugewandte Stirnwandung der Arbeitskammer die Trennwand (40) bildet.
- Vortriebsschild nach einem der Ansprüche 14 bis 20, dadurch gekennzeichnet, daß der Verlagerung der Arbeitskammer ein Hydraulikzylinder (30) dient.
- Vortriebsschild nach einem der Ansprüche 14 bis 21, dadurch gekennzeichnet, daß in der Arbeitskammer (21) eine durch ihre Öffnung (25) absenkbare Greifeinrichtung (31) zur Aufnahme eines Schneidkopfes (11) oder größerer Abraumstücke vorgesehen ist.
- Vortriebsschild nach einem der Ansprüche 1 bis 22, dadurch gekennzeichnet, daß auf der der Ortsbrust zugewandten Stirnfläche der Trennwand (40) Schneideinrichtungen angeordnet sind.
- Vortriebsschild nach einem der Ansprüche 1 bis 23, dadurch gekennzeichnet, daß in der Trennwand (40) über deren Durchmesser verteilte, verschließbare Konsolidierungsöffnungen vorgesehen sind.
- Vorrichtung nach einem der Ansprüche 1 bis 24, dadurch gekennzeichnet, daß auf der der Ortsbrust (5) zugewandten Seite der Trennwand (40) Düsen vorgesehen sind, über welche ein fluides Medium einspritzbar ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4427070A DE4427070C1 (de) | 1994-08-01 | 1994-08-01 | Schildvortriebsmaschine mit einer mechanischen Abstützvorrichtung der Ortsbrust |
DE4427070 | 1994-08-01 | ||
PCT/DE1995/000911 WO1996004465A1 (de) | 1994-08-01 | 1995-07-12 | Vortriebsschild |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0774043A1 EP0774043A1 (de) | 1997-05-21 |
EP0774043B1 true EP0774043B1 (de) | 1998-02-25 |
Family
ID=6524556
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95924186A Expired - Lifetime EP0774043B1 (de) | 1994-08-01 | 1995-07-12 | Vortriebsschild |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0774043B1 (de) |
JP (1) | JP2834332B2 (de) |
AT (1) | ATE163459T1 (de) |
DE (2) | DE4427070C1 (de) |
DK (1) | DK0774043T3 (de) |
WO (1) | WO1996004465A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4426497C2 (de) * | 1994-07-27 | 1996-12-12 | Wirth Co Kg Masch Bohr | Vortriebsschild |
DE10118257B4 (de) * | 2001-04-10 | 2010-07-01 | Gebhardt & Koenig - Berg- Und Bautechnik Gmbh | Verfahren zum Schützen des Arbeitsraumes einer Streckenvortriebsmaschine und Schutzhaube |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2907768A1 (de) * | 1979-02-28 | 1980-09-04 | Holzmann Philipp Ag | Vortriebsschild |
AT384274B (de) * | 1985-10-14 | 1987-10-27 | Voest Alpine Ag | Schildvortriebsmaschine |
FR2589516B1 (fr) * | 1985-11-06 | 1988-05-20 | Bessac Creusement Soutenement | Procede et machine a bouclier pour le creusement de galeries souterraines, notamment dans des sols aquiferes a faible cohesion |
-
1994
- 1994-08-01 DE DE4427070A patent/DE4427070C1/de not_active Expired - Fee Related
-
1995
- 1995-07-12 JP JP8506078A patent/JP2834332B2/ja not_active Expired - Lifetime
- 1995-07-12 EP EP95924186A patent/EP0774043B1/de not_active Expired - Lifetime
- 1995-07-12 WO PCT/DE1995/000911 patent/WO1996004465A1/de active IP Right Grant
- 1995-07-12 DK DK95924186.0T patent/DK0774043T3/da active
- 1995-07-12 AT AT95924186T patent/ATE163459T1/de not_active IP Right Cessation
- 1995-07-12 DE DE59501506T patent/DE59501506D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO1996004465A1 (de) | 1996-02-15 |
JP2834332B2 (ja) | 1998-12-09 |
ATE163459T1 (de) | 1998-03-15 |
EP0774043A1 (de) | 1997-05-21 |
DK0774043T3 (da) | 1998-06-02 |
JPH09508189A (ja) | 1997-08-19 |
DE59501506D1 (de) | 1998-04-02 |
DE4427070C1 (de) | 1995-06-08 |
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