EP0881359A1 - Method and arrangement for constructing a tunnel by using a driving shield - Google Patents

Abstract

To drill a tunnel, a drilling drive machine (1) has a leading shield (3) and a shield tail which is advanced by pushing a pipe section (11) out of the shield tail. An expandable pipe section (11") is pushed through the prepared pipe length into the shield tail, and expanded. After locking the expansion, the expanded pipe section is placed at the end of the pipe length at the drilling side and, as the machine is advanced, is pushed out of the shield tail. The process is repeated for further lengths to laid. A shield drilling machine may have pipe lengths and movement systems (28), with expansion mechanisms (21), locks and positioners (16), and a system (10,14,15) to push the expanded pipe sections out of the shield tail.

Description

The invention relates to a method for producing a tunnel in shield tunneling and an arrangement for performing the method.

It has long been known to manufacture tunnels in the shield tunnel, in which a immediate removal by inserting segments. For this is located in the shield tail of the tunneling machine, a tubbing rector, which the individual Tubbings put together in the protection of the shield tail to a tunnel tube. The result is an in-situ pipe, which is made up of a variety is composed of individual segments.

In the area of so-called microtunneling, i.e. remote-controlled manufacturing of channels, segmental lining is not possible because the assembly the tubbing to a tube is not fully automatic or remote controlled feasible.

Not accessible channels, for example house connections, lines for loading and Drainage, or supply and disposal lines, are still used in many Cases made in open construction. In contrast, microtunneling offers with immediate expansion but already considerable advantages.

Microtunneling enables immediate expansion as follows: A tunneling machine is from a starting shaft by means of a pre-press unit in the Ground driven. When the pre-press unit is fully extended, the Tunneling stopped, the pre-pressing unit moved back and a pipe section attached to the end of the shield tail. The pre-press unit pushes the pipe section, and with this the tunneling machine, in the ground, around the tunneling to continue. By gradually inserting further pipe sections into the pre-pressing unit a pipe string is created with the tunneling machine at the top.

The force of the pre-press unit acts in each case with this known procedure to the last piece of pipe used and indirectly to the tunneling machine, so that the force required for the advance with increasing pipe length and correspondingly increasing friction in the existing soil becomes. Depending on the nature of the soil, this results in a maximum pipe length, beyond the use of specially controlled and supplied stretching stations becomes necessary. It is also in the procedure just described very complex to produce curved tunnels.

Starting from this prior art, the invention is based on the object a method and an arrangement for manufacturing a tunnel in the Provide shield driving, with which in particular inaccessible tunnels and ducts with immediate expansion while avoiding the open construction even over large distances and with curvatures if necessary can be produced.

This object is achieved by a method with the features of claim 1 or solved by an arrangement with the features of claim 15.

According to the invention, when driving a tunneling machine with a shield and a shield tail first pushed out a piece of pipe from the shield tail. From the start shaft through this piece of pipe becomes an expandable Pipe piece transported into the shield tail and there on the expanded to the same diameter as the pipe piece already pushed out. The Widening is locked, the widened piece of pipe is pushed onto the extended one Pipe piece attached and the further advance of the tunneling machine pushed out the shield tail. Then another expandable piece of pipe through the pipe string formed by the two pipe pieces set transported through the tail of the shield, expanded there, locked and on attached the removed pipe string. Repeat these steps until the desired tunnel length is reached.

The method according to the invention is used to assemble a link Pipe string produced, which can also have curvatures. The one time ejected pipe sections remain stationary in relation to the ground in front, so that relatively small radii can be driven during tunneling. Furthermore are the forces required for the propulsion from the distance between independent of the tunneling machine and the starting shaft.

The fact that complete pipe pieces as a whole are placed in the shield tail and just widen to the desired diameter there, it is - in contrast to the well-known segmental lining - possible to expand the tunnel remote controlled in the shield tail and also not accessible channels to make.

The arrangement according to the invention for carrying out the method comprises in addition a well-known tunneling machine with a shield and a shield tail a number of expandable pipe sections, a means of transport for Transport of these pipe sections in the shield tail, expanding devices for Widening of the pipe sections, which are preferably attached to the pipe sections themselves are locking devices for locking the expansion, the Expanding devices can be designed to be self-locking, a positioning device for attaching the pipe section widened in the shield tail on the already expanded pipe string and means for pushing out the widened pipe sections from the shield tail, which at the same time the propulsion of the tunneling machine.

The expandable pipe sections preferably consist of ring-shaped, expandable bands, the ends of which overlap in the circumferential direction. Expandable tapes of this type are used to seal leaks already used in channels and are for example from DE 93 13 379 U1 or DE 44 01 318 C2 known. Such a band expediently exists made of resiliently deformable material, for example sheet steel.

Between those widened and pushed out inside the shield tail Pipe pieces, which form the pipe string, and the upcoming floor usually an annulus remains. This is expediently filled in, for example with a quick hardening suspension to close the tubing support and give it sufficient support for the tunneling machine. The annular space is preferably filled via injection nozzles at the end of the shield tail facing away from the propulsion.

To prevent any pressurized water from entering the Inside the shield tail can penetrate, and around the backfill for the To keep the annulus away from the interior of the shield tail, it is advantageous to between the outer walls of the pipe sections and the inner wall of the shield tail To attach rings made of rubber-elastic material, which at the Widening of the pipe sections on their outer walls and at the same time on the Lay the inner wall of the shield tail sealingly. These rings can either on the outer walls of the pipe sections or stationary on the inner wall the tail of the shield.

The sealing of the abutting edges between the individual pipe pieces against pressing water or against the backfill can be done be that the outer edges of the pipe sections each with a rubber elastic Material are coated so that when attaching a piece of pipe to the Pipe string of rubber-elastic material encounters rubber-elastic material.

When using bands bent in a ring, the ends of which overlap in the circumferential direction, it is advantageous if between the overlapping band ends each have an essentially axially extending seal is arranged to prevent water or backfill from entering the interior to prevent the pipe string at this point.

There are special advantages if the expandable pipe sections with a Montierwagen be transported in the Schildschwanz, the Montierwagen carries an actuator for the expansion devices and with whose help expands the pipe sections in the shield tail. The expanding devices of the expandable pipe section can already be engaged in the starting shaft be brought to the operating device of the service vehicle. After this The assembly trolley is positioned in the shield tail during transport through the pipe string. Then the actuator is activated and the pipe section expanded. This ensures in a simple manner that the expansion of the Pipe piece can be done automatically or remotely.

The assembly trolley can expand the pipe sections individually or in pairs transport into the shield tail. Almost the entire route between the Tunneling machine and the starting shaft can be removed from the assembly vehicle during the Pushing out the last widened pipe section are covered so that driving the car back and forth does not cause delays.

The supply lines necessary for the operation of the tunneling machine are located in the already expanded pipe string and are behind the tunneling machine dragged here. You must already be in the expandable pipe sections in the starting shaft be threaded so that they rest on the inner wall of the pipe string Supply lines transport the pipe sections into the shield tail hinder. To remove these difficulties, the assembly car advantageously provided with a device which the supply lines lifts in front of the assembly car and puts it down behind him. So the expandable pipe sections can be used without hindrance even when threaded can be transported through the pipe string.

There are further advantages if the tire changer is attached to a shield tail Docking station of the tunneling machine is coupled: This is the Assembling car in a defined position relative to the shield tail with the tunneling machine connected before the expansion of the pipe section takes place. The positioning device can be assigned to and act on the docking station, so that an exact attachment of the newly widened pipe section to the already removed pipe string is remotely controlled or automatically ensured.

The docking station also offers the option of using suitable assembly vehicles Coupling elements to the supply lines of the tunneling machine to connect. For example, the control pulse can be via the docking station forwarded to the assembly car for the actuators, or this can be done with electricity, compressed air, hydraulic oil or the like for the the assembly trolley for expanding and positioning the pipe section Mechanics are supplied.

A particularly preferred development of the method according to the invention consists in the fact that in addition to the expandable pipe section, an additional pipe piece is transported into the shield tail, which after widening, Lock and attach the pipe section to the already removed pipe string placed in the area of the abutting edge between the pipe section and the pipe string and expanded there until it hits the inner wall of the tubing string is present. Then the expansion of the additional pipe piece is locked.

One piece of pipe and one additional piece of pipe are expediently used for transport a trolley is used, the two parts together in transported the tail of the shield, there initially widened the pipe section, locked and attaches to the already expanded pipe string, and then the additional pipe piece position, expand and lock. Only after these procedural steps the pipe piece is removed from the shield tail during further drilling pushed out.

In this particularly advantageous process variant, a pipe string is created, which consists of pieces of pipe put together, each connecting joint between two adjacent pipe sections via one on the inner walls of both Pipe pieces pressed at the same time additional pipe piece. This additional pipe piece can be of the same length as the actual pipe sections, so that the result is a double-walled pipe string. To material too save and to enable small radii of curvature of the tunnel, they are Additional pipe sections are preferably significantly shorter than the actual pipe sections educated.

The additional pipe pieces have the great advantage that they are adjacent Center the pipe sections and stabilize them in relation to each other. Beside poetry the pipe string formed by the pipe sections from the outside, too when curvatures of the tunnel between the individual pipe sections create fingers.

The entire inventive method for producing a tunnel in the Shield jacking can be done remotely, which means that non-accessible channels is of the greatest importance.

In addition to the advantageous developments of the method according to the invention, which can be found in claims 2 to 14, there are advantageous embodiments the arrangement according to the invention from claims 16 to 29.

The arrangement for performing the method can in particular be a Montierwagen include, an actuator for the expanding devices carries, which essentially consists of at least one turning tool exists, which engages with a when expanding the pipe section Pinion of the expander is located and designed to be raised and lowered is. The mentioned pinion of the expansion device can therefore already in the starting shaft be placed on the turning tool, preferably pointing upwards and during transport of the expandable pipe section with this in Stay engaged. After the assembly car arrived in the shield tail the lathe tool can be raised until the pipe section is at the apex of the shield tail. Then the pipe section can be turned simply of the turning tool can be expanded without hindrance.

To carry out the process variant, which works with additional pipe pieces, the assembly trolley preferably has two actuating devices, which can be operated independently of one another, can be raised independently of one another and are designed to be lowerable and displaceable relative to one another. Hereby can be expanded and a piece of pipe in the manner described above can be attached to the already expanded pipe string. Then the second Actuator for an additional pipe piece moved along the pipe axis and the additional pipe piece by lifting the associated actuating device applied to the apex of the inner wall of the pipe string and be expanded.

Figur 1

Einen seitlichen Schnitt durch eine Vortriebsmaschine mit dem vorderen Ende des bereits ausgebauten Rohrstrangs;

Figur 2

das Detail II aus Figur 1;

Figur 3

eine Darstellung wie Figur 1 während eines späteren Verfahrensabschnitts;

Figur 4

das Detail IV aus Figur 3 während eines noch späteren Verfahrensabschnitts;

Figur 5

einen Schnitt entlang der Linie V-V gemäß Figur 3;

Figur 6

eine perspektivische Skizze eines Montierwagens;

Figur 7

einen Abschnitt eines mit der Erfindung hergestellten, nicht begehbaren Kanals;

Figur 8

eine Darstellung wie Figur 1, jedoch eines anderen Ausführungsbeispiels.

The method according to the invention and the arrangement for carrying out the method are explained in more detail below using an exemplary embodiment. This will be described with reference to the accompanying drawings. Show it:

Figure 1

A side section through a tunneling machine with the front end of the pipe string already removed;

Figure 2

the detail II from Figure 1;

Figure 3

a representation like Figure 1 during a later stage of the process;

Figure 4

the detail IV from FIG. 3 during an even later process section;

Figure 5

a section along the line VV of Figure 3;

Figure 6

a perspective sketch of an assembly car;

Figure 7

a portion of a non-walkable channel made with the invention;

Figure 8

a representation like Figure 1, but of another embodiment.

The tunneling machine 1 shown in Figure 1 comprises a shield 2 with a subsequent shield tail 3 and a cutting wheel 4, which with carbide tools 5 is provided. The overburden entering a crusher room 6 is discharged into the starting shaft (not shown) via a delivery line 7.

The tunneling machine 1 can be steered by means of control cylinders 8. A rotary drive 9 generates the rotary motion necessary for drilling, whereas the Propulsion force is generated by means of propulsion cylinders 10, which are on the supported by the pipe sections 11, 11 'and 11' 'pipe string.

At the abutting edges 12, 12 'between the individual pipe sections 11, 11' and 11 '' are additional pipe sections lying against the inner walls of the pipe sections 11, 11 ', 11' ' 13 and 13 'arranged, which stabilize the pipe string and against Seal ingressing water.

The jacking cylinders 10 are supported with their piston rods 14 on one Pressure plate 15, which in turn rests on the foremost pipe section 11.

A positioning device 16, which is equipped with a docking station, is also visible 17 cooperates, and supply lines 18, holding plates 19 and Guide rails 20. The function of these parts will be explained later.

FIG. 1 and FIG. 2 show an enlarged illustration of the detail II from FIG. 1 the process section in which the pushing out of a pipe section 11 the shield tail 3 takes place during the simultaneous propulsion of the tunneling machine 1. For this purpose, it can be clearly seen in FIG. 2 how the piston rod 14 opens the pressure plate 15, and this is supported on the pipe section 11. At the butt edge 12 between the pipe section 11 and the pipe section 11 'sits the additional pipe section 13. Both parts, the pipe section 11 and the additional pipe section 13, are in front extended, positioned and locked when pushed out.

Both the pipe sections 11, 11 ', 11' 'and the additional pipe sections 13, 13' exist made of sheet steel strips, which overlap in the circumferential direction. The in Wear the overlapping area of the outer ends of the pipe sections 11, 11 ', 11' ' two pinions each, each in a rack-like slot on the inside Intervene at the end of the belt and together with these the expansion devices 21 form. By rotating the pinion, the two overlap Band ends shifted against each other, causing the expansion of the pipe sections 11, 11 ', 11' 'causes. The additional pipe sections 13, 13 'are also equipped with such expansion devices 21 'provided.

The outer edges of the pipe sections 11, 11 'carry all-round sealing profiles 22, 22 ', by means of which the abutting edge 12 is sealed. The sealing effect is by pressing the additional pipe section 13 against the inner walls of the pipe sections 11 and 11 'in the area of their abutting edge 12 still increased.

The sealing profiles 22, 22 'are provided on the outside with all-round sealing lips 23, 23', which take over the function of sealing rings. As can be seen in Figure 2, prevent these sealing lips 23, 23 'that in the adjacent floor 24 if necessary existing pressurized water between the through the pipe sections 11, 11 ', 11' 'formed tubing and the inner wall of the tail 3 can penetrate into the tunneling machine 1.

The one remaining between the pipe string 11, 11 ', 11' 'and the pending bottom 24 Annulus 25 is introduced with an injection nozzle 26 Suspension 27 filled. The injection nozzles 26 are only shown schematically; it is expediently located in the area facing away from the boring jack End of the tail 3.

Is shown in Figures 1 and 2, the process section in which the Propelled machine 1 and the last pipe section 11 from the shield tail 3 is pushed out, so Figure 3 shows the process section, in which one through the already expanded pipe string 11, 11 '11' ' transported pipe section 11 '' 'expanded in the tail 3 and to the Pipe piece 11 is attached. The tunneling machine 1 stands still; the piston rods 14 are retracted into the jacking cylinders 10 and the pressure plate 15 is pulled away from the pipe section 11.

The new pipe piece 11 '' 'introduced into the shield tail is together with one Additional pipe section 13 '' on an assembly cart (shown here in simplified form) 28 have been transported through the pipe string 11, 11 ', 11' '. Of the Montierwagen 28 is now coupled to the docking station 17 and via the positioning device 16 has been positioned. The pipe section 11 '' 'lies on two actuators 29 for the two expansion devices 21. Likewise, the additional pipe section 13 ″ lies on an actuating device 29 ′ for the Expanding device 21 '. The actuators 29, 29 'consist in essentially of turning tools 30, 30 'which engage with those described above Pinions of the expanding devices 21, 21 'are located.

The actuators 29 for the pipe section 11 '' 'are a front work table 31 of the assembly car 28 assigned; they can be raised and lowered educated. The actuating device 29 'for the additional pipe section 13' 'is seated A rear work table 32, which is also designed to be raised and lowered of the assembly trolley 28, which is displaceable relative to the front work table 31 is; this is indicated by a double arrow.

Both the front work table 31 and the rear work table 32 of the assembly trolley 28 have bracing cylinders 33 and 33 ', which are used during transport of the pipe section 11 '' 'and the additional pipe section 13' 'ensure that the Turning tools 30, 30 'in engagement with the respective expanding devices 21, 21 'remain. The bracing cylinders are used to raise the actuating devices 29, 29 ' 33, 33 'retracted.

The assembly trolley 28 has, in addition to wheels that are not visible here, Support assembly car 28 against the pipe string 11, 11 ', 11' 'and in front of the Pipe section 11 '' 'or behind the additional pipe section 13' 'are arranged, guide wheels 34, which run in the guide rails 20. The guide rails 20 carry the supply lines 18 at regular intervals provided holding plates 19. When moving the assembly carriage 28 in the pipe string 11, 11 ', 11' 'become the guide rails 20 due to the guide wheels 34 raised so that because of the holding plates 19 as a result, the supply lines 18 are raised in the area of the assembly vehicle 28. The Supply lines 18 therefore represent the transport of the pipe section 11 '' and the additional pipe section 13 '' is not an obstacle.

FIG. 4 shows detail IV from FIG. 3, but during a comparison with FIG. 3 Later section of the process: The pipe section 11 '' 'has already been expanded and to the front end of the pipe string 11, 11 ', 11' ', that is to say to the pipe section 11 scheduled. The expansion devices 21 are self-locking, so that the expansion is permanent. The turning tools 30 of the front work table 31 are already retracted and no longer in engagement with the pinions of the expansion devices 21.

The rear work table 32 became forward relative to the front work table shifted and thereby brought the additional pipe section 13 '' into position. The additional pipe piece 13 '' is now in the area of the butt edge 12 between the Pipe section 11 and the pipe section 11 '' '. By lifting the turning tool 30 'in the crown of the tubing 11, 11 '' 'and rotation of the pinion of the expander 21 ', the additional pipe piece 13' 'is expanded and against the inner walls the pipe piece 11 and the pipe piece 11 '' 'clamped.

Figure 5 shows a section along the line V-V according to Figure 3. Outside you can see the (cut) shield tail 3 and in top view the pipe section 11 and the additional pipe section 13, which the front end of the already removed Form pipe string. The pipe piece transported with the assembly car 28 11 '' 'is also shown in plan view, it being seen that it has two overlapping ends and by a relative movement of the two Ends can be widened.

The assembly carriage 28 (shown in simplified form) comprises, in addition to those already described Rotary tools 30, the only visible front in this illustration Work table 31 and the clamping cylinders 33, a frame 35, which on the one hand the work tables 31, 32 and on the other hand the ones (not visible in FIG. 3) Carries wheels 36, by means of which the assembly car 28 in the pipe run 11, 11 ', 11' 'can move back and forth.

At the front end of the assembly car 28 is a coupling device 37 for Coupling to the docking station 17 of the tunneling machine 1 arranged.

Furthermore, it can be clearly seen in FIG. 5 how the guide wheels 34 of the assembly vehicle 28 run in the guide rails 20, which by means of the holding plate 19 Lift the supply lines 18 under the assembly car 28.

FIG. 6 shows a perspective illustration of an example of a tire changer 28, which already (in a simplified form) in Figures 3, 4 and 5 is shown. A front work table 31 is arranged on the frame 35, which two turning tools 30 as actuating device 29 for the expanding devices 21 of the pipe sections 11 '' 'carries. On these turning tools 30, which are raised and lowered, there is a dash-dotted line Pipe section 11 '' '. The front work table 31 is on the right and left with bracing cylinders 33 provided which interact with the pipe section 11 '' ' give a secure hold for transport with the turning tools 30.

The rear work table 32 of the assembly carriage 28 is by means of travel rails 38 and elongated holes 39 slidably mounted on the frame 35. He carries a Rotary tool 30 ', which is arranged in cooperation with the right and left Bracing cylinders 33 'the additional pipe section, also indicated by dash-dotted lines 13 '' holds.

The frame 35 of the assembly carriage 28 is also behind the additional pipe piece 13 ″ two angled wheels 36 connected, which due to their angling perpendicular to the surface of the inner wall of the pipe string already removed Roll 11, 11 ', 11' '. There are also two in front of the pipe section 11 '' ' angled wheels 36. Between the two front wheels 36 is one Coupling device 37 for coupling the assembly vehicle 28 to the docking station 17 of the tunneling machine 1 is provided.

The guide wheels 34 also attached to the frame 35 run in the guide rails 20 to this together with the supply lines (not shown here) 18 in the area of the assembly car 28.

FIG. 7 finally shows a section of the method according to the invention pipe string 11, 11 ', 11' 'produced with the arrangement according to the invention, 11 '' '. With broken lines it is indicated how the additional pipe pieces 13, 13 ' and 13 ″ each sit within the tube pieces 11, 11 ′, 11 ″, 11 ″ ″. In this illustration it is also clear that the sealing lips 23, 23 'of the sealing profiles 22, 22' act as circumferential sealing rings.

FIG. 8 shows another embodiment of an arrangement according to the invention shown according to the representation of Figure 1. The tunneling machine 1 of this embodiment includes a telescopic part 40 which is essentially by an outer cladding tube 41 and a coaxially displaceable relative to this Inner tube 42 of the tail 3 is formed. About the shift of the cladding tube 41 against the inner tube 42 is also possible the delivery line 7 is provided with a telescopic section 43.

The telescopic part 40 is by means of telescopic cylinder 44, which can be moved by means of front Bearing 45 on the front part of the tunneling machine 1 and by means of the rear bearing Support 46 on the rear part of the tunneling machine 1, pushed apart and moved back in. The tunneling machine has in front of the telescopic part 40 1 over a number of front bracing units 47. In a corresponding manner are also behind the telescopic part 40 circumferentially distributed clamping units 48 on the tunneling machine 1.

The clamping units 47 and 48 each consist of two lifting cylinders 49, by means of which an outer wall section 50 is pressed into the surrounding floor 24 and can be pulled out of it. By alternating Actuation of the front tensioning units 47 and the rear tensioning units 48 and with the telescopic cylinder's retracting and extending movements 44 results in a worm-like locomotion of the tunneling machine 1, so that they are essentially only for propulsion against the upcoming Bottom 24, and not supported against the dismantled tubing 11, 11 ', 11' ', 11' ''.

The embodiment shown in Figure 8 of an arrangement according to the invention thus allows continuous propulsion while protecting the Shield tail 3 of the pipe string 11, 11 ', 11' ', 11' '' is produced.

With reference to Figures 1 to 6 is again on the operation of the received embodiment shown there:

In the (not shown) starting shaft an expandable pipe section 11 '' 'and an additional pipe section 13 ″ on the turning tools 30, 30 ′ of the assembly carriage 28 put on and by means of the tension cylinders 33, 33 'on the assembly car 28th tense. Then the assembly car 28 is replaced by the already removed Pipe string, 11, 11 ', 11' 'through into the shield tail 3 of the tunneling machine 1 proceed. Here he is supported by means of four wheels 36 on the inner wall of the pipe string 11, 11 ', 11' '. At the same time, the guide rails 20, and with these via the holding plates 19, the supply lines 18, by means of the guide wheels 34 raised in front of the assembly car 28 and behind it filed again.

In parallel to this process, the tunneling machine 1 is driven into the ground 24 and at the same time the last applied expandable pipe section 11 from the Shield tail 3 pushed out by the propulsion cylinder 10 over the Support the pressure plate 15 on the pipe section 11 (see FIG. 1 and FIG. 2).

After the pipe section 11 is almost completely pushed out of the tail 3 the piston rods 14 are moved into the jacking cylinders 10, the drilling is stopped and the assembly car 28 is via the docking station 17 coupled to the tunneling machine 1. By means of the positioning device 16, the assembly car 28 is positioned so that the assembly car 28 transported pipe section 11 '' 'after expansion on the front Edge of the pipe section 11 rests (see FIG. 3).

To expand the pipe section 11 '' ', the two turning tools 30 of the front work table 31 of the assembly car 28 raised until not yet widened pipe section 11 rests in the apex of the shield tail 3. Then be the turning tools 30 actuated so that the expansion devices 21 the Expand pipe section 11 '' '. After the sealing lips 23 of the sealing profiles 22 all around the widening will rest on the inner wall of the shield tail 3 locked - what is easiest by a self-locking expansion device 21 takes place - and the turning tools 30 are lowered again. Then the rear work table 32 of the assembly vehicle 28 is forward to the front Work table 31 moves to the additional pipe section 13 '' in a position between to bring the pipe sections 11 and 11 '. The turning tool 30 'is raised until the additional pipe section 13 '' in the apex of the two pipe sections 11 and 11 '' ' sits, after which the additional pipe section 13 '' by actuating the turning tool 30 ' is expanded (see FIG. 4). The expansion of the additional pipe section 13 ″ causes centering and stabilizing the two pipe sections 11 and 11 '' 'and an improved sealing effect of the sealing profiles lying between them 22 and 22 '.

Finally, the turning tool 30 ′ on the rear work table 32 the Montierwag 28 lowered and the Montierwagen 28 back in move the starting shaft. The advance can already be resumed, during the assembly car 28 through the tubing 11, 11 ', 11' ', 11' '' back runs into the starting shaft. The jacking cylinders 10 are then supported the pressure plate 15 on the newly introduced pipe section 11 '' '. The one when pushing out of the newly introduced pipe section 11 '' 'remaining annular space between the outer wall and the upcoming floor 24 is with a quickly hardening suspension pressed to the tubing 11, 11 ', 11' ', 11' '' stabilize.

The embodiment shown in Figure 8, which differs from that just described Embodiment differs, enables uninterrupted Propulsion during the manufacture of the tubing string 11, 11 ', 11' ', 11' '' nevertheless done in the manner described above; because the tunneling machine 1 is supported against the ground essentially by means of the tensioning units 47, 48 24 from.

Compilation of the reference symbols

1

Tunneling machine

2nd

sign

3rd

Shield tail

4th

Cutting wheel

5

Carbide tools

6

Crusher room

7

Conveyor line

8th

Control cylinder

9

Rotary drive

10th

Jacking cylinder

11, 11 ', 11' ', 11' ''

Pipe piece

12, 12 '

Butt edge

13, 13 ', 13' '

Additional pipe section

14

Piston rod (of 10)

15

printing plate

16

Positioning device

17th

docking station

18th

Supply lines

19th

Holding plates

20th

Guide rails

21, 21 '

Expanding device

22, 22 '

Sealing profile

23, 23 '

Sealing lips

24th

ground

25th

Annulus

26

Injection nozzle

27

suspension

28

Assembly car

29, 29 '

Actuator (for 21, 21 ')

30, 30 '

Turning tools

31

Work table (front)

32

Work table (rear)

33, 33 '

Bracing cylinder

34

Guide wheels

35

frame

36

bikes

37

Coupling device

38

Travel rail

39

Long hole

40

Telescopic part

41

Cladding tube

42

Inner tube

43

Telescope section

44

Telescopic cylinder

45

Bearing (front)

46

Bearing (rear)

47

Bracing units (front)

48

Bracing units (rear)

49

Lifting cylinder

50

Outer wall section

Claims (29)

Process for the manufacture of a tunnel in shield driving with the following process steps: (a) propulsion of a tunneling machine (1) with a shield (2) and a shield tail (3), (b) pushing out a pipe section (11) from the shield tail (3) during the advance, (c) transporting an expandable piece of pipe (11 ''') through the pipe string (11, 11', 11 '') that has already been removed into the shield tail (3), (d) expanding the expandable tube piece (11 ''') in the shield tail (3) and locking the expansion, (e) attaching the expanded pipe section (11 ''') to the end of the pipe string (11, 11', 11 '') that has already been removed, (f) repeating process steps (b) to (e). A method according to claim 1, characterized in that expandable bands are used as expandable tube pieces (11, 11 ', 11'',11'''), the ends of which overlap each other in the circumferential direction. Method according to one of claims 1 or 2, characterized in that the jacking machine (1) for the jacking is supported in each case on the pipe section (11 ''') last attached to the pipe string (11, 11', 11 ''). Method according to one of claims 1 to 3, characterized in that the tunneling machine (1) for the tunneling is supported in the surrounding soil (24). Method according to one of claims 1 to 4, characterized in that an annular space (25) present between the outer wall of the pipe string (11, 11 ', 11'') and the adjacent base (24) is filled. Method according to Claim 5, characterized in that the annular space (25) is filled via injection nozzles (26) at the end of the shield tail (3) facing away from the propulsion. Method according to one of claims 1 to 6, characterized in that the interior of the shield tail is sealed against pressurized water or against a filling compound by means of between the outer wall of the pipe sections (11, 11 ', 11'',11''') and the inner wall of the shield tail (3) arranged rings made of rubber-elastic material. Method according to one of claims 1 to 7, characterized in that the expandable pipe sections (11 ''') are transported with a fitting carriage (28) which transports the pipe sections (11''') in each case into the shield tail (3) and expanding there. A method according to claim 8, characterized in that the assembly carriage (28) lifts the supply lines (18) of the tunneling machine (11) as it passes through the pipe string (11, 11 ', 11''), so that the latter moves the pipe sections (11') '') do not hinder. Method according to one of Claims 8 and 9, characterized in that the assembly carriage (28) is coupled to the tunneling machine (1) in the shield tail (3). Method according to Claim 10, characterized in that the power supply and / or the control of the assembly carriage (28) takes place in the coupled state via the tunneling machine (1). Method according to one of claims 1 to 11, characterized in that, in addition to the expandable pipe piece (11 '''), an additional pipe piece (13'') is transported into the shield tail, which after the pipe piece (11' has been expanded, locked and attached) '') on the already removed pipe string (11, 11 ', 11'', 13, 13') in the area of the abutting edge (12) between the pipe section (11 ''') and the pipe string (11, 11', 11 '', 13, 13 ') and expanded there until it rests against the inner walls of the pipe section (11''') and the pipe string (11), after which the expansion is locked. Method according to Claim 12 and one of Claims 8 to 11, characterized in that the assembly carriage (28) in each case transports a pipe section (11 ''') and an additional pipe section (13'') together into the shield tail (3), initially the pipe section (11 ''') widened, locked and attached to the already removed pipe string (11), and then brought the additional pipe piece (13'') into position, widened and locked. Method according to one of claims 1 to 13, characterized in that all process steps are carried out remotely. Arrangement for carrying out the method according to one of claims 1 to 14, comprising: a tunneling machine (1) with a shield (2) and a shield tail (3), a number of expandable pipe sections (11, 11 ', 11'',11'''), a transport means (28) for transporting the expandable pipe sections (11 ''') into the shield tail (3), Expanders (21) for expanding the pipe sections (11, 11 ', 11'',11'''), Locking devices for locking the expansion, a positioning device (16) for attaching the expanded pipe sections (11 ''') to the end of the pipe string (11, 11', 11 '') which has already been removed, and means (10, 14, 15) for pushing out the widened pipe sections (11, 11 ', 11'',11''') from the shield tail (3). Arrangement according to Claim 15, characterized in that the expandable tube pieces (11, 11 ', 11'',11''') are expandable bands which are bent together in a ring, the ends of which each overlap in the circumferential direction. Arrangement according to one of claims 15 or 16, characterized in that injection nozzles (26) are arranged on the shield tail (3), around the annular space (25) between the outer wall of the pipe string (11, 11 ', 11'') and the adjacent floor (24) to fill. Arrangement according to one of claims 15 to 17, characterized in that the expandable pipe sections (11, 11 ', 11'',11''') are provided with rings made of rubber-elastic material attached to their outer wall. Arrangement according to one of claims 15 to 18, characterized in that the outer edges of the expandable tube pieces are covered with a rubber-elastic material. Arrangement according to claims 16 and 19, characterized in that in the overlapping area of the expandable tapes there is in each case an essentially axially extending seal arranged between the overlapping tape ends. Arrangement according to one of claims 15 to 20, characterized in that the transport means is an assembly carriage (28) which carries an actuating device (29) for the expanding devices (21). Arrangement according to claim 21, characterized in that the tunneling machine (1) has a docking station (17) for coupling the assembly carriage (28). Arrangement according to claim 22, characterized in that the positioning device (16) is assigned to the docking station (17). Arrangement according to one of claims 22 or 23, characterized in that the assembly carriage (28) can be connected to the supply lines (18) of the tunneling machine (1) via the docking station (17). Arrangement according to one of claims 21 to 24, characterized in that the assembly carriage (28) has means (34) for lifting the supply lines (18) of the tunneling machine (1). Arrangement according to one of claims 15 to 25, characterized in that expandable additional pipe pieces (13) are provided for contacting the inner walls of two adjacent pipe pieces (11, 11 ') in the region of their intermediate abutting edge (12). Arrangement according to Claim 26 and one of Claims 21 to 25, characterized in that the assembly carriage (28) is designed for the pairwise transport of at least one pipe section (11 ''') and at least one additional pipe section (13'') and each has an actuating device (29) for widening the pipe section (11 ''') and each have a further actuating device (29') for widening the additional pipe section (13 ''). Arrangement according to claim 27, characterized in that the two actuating devices (29, 29 ') can be actuated independently of one another, can be raised and lowered independently of one another and can be displaced relative to one another. Arrangement according to one of Claims 15 to 28, characterized in that the tunneling machine (1) has a telescopic part (40) which can be pushed together, and in front and behind it, tensioning units (47, 48) which can be extended radially via the outer wall of the shield tail (3).

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