EP1108855A1 - Self-supporting waterproof vault for tunnel lining - Google Patents

Abstract

A method for lining a tunnel has a flexible shell (5) erected inside the freshly excavated tunnel. The shell is waterproof and protects the construction crew from falling debris and water. The shell can be braced by support ribbing and it can be secured to the tunnel wall at set points. The shell can form the shuttering for concrete and for backfilling the void between the shell and the tunnel. The tunnel can be completed by an inner masonry lining if required.

Description

The present invention relates to a Procedure for creating tunnels, the application of the process, a tunnel construction and a sealing vault and the use of the sealing vault according to the General terms of the independent claims.

Underground tunnels serve in the most cases for transportation purposes and prefer to come there for use where certain transport capacities with above-ground Means not or only in uneconomical Way can be provided. This hits especially when it comes to using road or rail vehicles geographic obstacles, such as e.g. Mountains to cross. Because the cost of that Construction of railway and road tunnels significantly and maintenance work often with a loss of use go hand in hand, very high durability requirements of such structures. A key point provides the sealing of the tunnel interior against this background against water emerging from the mountain and possibly the safe drainage of this water.

In the early days of tunnel construction, the tunnel vault made of individual Bricks created in the excavated cavity and the outer surface of which is then sealed with a layer of mortar. The one between the rock and the layer of mortar located cavity was filled with a fill Rock debris filled up and served as more reliable Drainage room for draining and pressure relief from the water leaking from the mountain. The rock scree served also to secure the cavity against falling Rock and for transferring rock pressure to the Masonry vault.

The emergence of concrete as a material in Tunnel construction has replaced this construction method. Today will be different other designs practiced, each one common is that after the rock eruption by In a second step, drilling or blasting is all-round security against falling rocks by application of shotcrete on the rock or by placing is created by segment rings in the rock eruption and then, in a third step, the waterproofing membrane from is applied internally to this all-round safety device.

When creating pressurized water Seals are between the all-round securing and the Sealing membrane a non-woven fabric or a drainage mat arranged as a drainage layer. At the subsequent Pour the inner shell from concrete, in which the Tracks or the lanes will run this Drainage layer to a thickness of a few millimeters condensed. While this drainage layer is new is sufficient for the water emerging from the rock derive safely and thus also the pressure relief ensure it can wash out over time of lime and other constituents from the rock and the Concrete all-round protection and consequently to one The drainage layer becomes blocked. This also as Sintering called constipation leads to a limitation or even loss of ability the drainage layer to drain water, causing it to a water pressure build-up of the emerging from the rock Water can come. This in turn can lead to failure the tunnel seal and / or damage to the supporting structure and other important elements of the tunnel to lead.

Creating a permanent pressurized water Sealing is practical in the known way not or only with great effort at low mountain water pressures possible because the slightest injuries the waterproofing membrane, e.g. during the tunnel construction work or through rock material that settles over time to water ingress and thus to large areas Moistening on the dry side of the waterproofing membrane to lead.

There is therefore the task of procedures for creating tunnel structures, tunnel structures and sealing vaults to provide which the previously Avoid the disadvantages mentioned.

This task is carried out by the process that Tunnel construction and the sealing vault according to the independent Claims solved.

In a preferred embodiment of the invention includes the process of creating sealed underground tunnels creating a cavity in an underground environment such as Rock, by explosion, by drilling or with another Outbreak method, and then creating one load-bearing sealing vault made of a water-impermeable and at least partially flexible and essentially dimensionally stable material in this broken space. All underground structures are under a tunnel understood that over a pronounced longitudinal extension feature. In addition to through tunnel constructions such as e.g. Road and rail tunnels also underground ending tunnel structures, which also others Can serve as transport purposes. As sustainable a vault is to be considered if it is suitable as a vault All-round protection from the outbreak limits dissolving material such as To catch boulders and if necessary, a filling layer of clean rock split, To carry rubble or gravel. At least partially flexible and essentially dimensionally stable material are understood materials and composite materials, which is in a plate-shaped formation Deform force, especially warp, and which in such a training a supporting structure represent who is able to next to their own weight to bear even more external loads. The creation of a tunnel seal in the form of a load-bearing sealing vault made of such a material gives the advantage that both the All-round protection as well as the tunnel sealing created can be what at a significant time and Cost savings when creating a tunnel construction leads.

If the sealing arch is designed in this way, that it's both circumferentially and in the direction the longitudinal extent of the tunnel construction to be created is closed and tight, can even if none Relief of pressure or in the event of constipation existing drainage rooms or pipes no water in the interior of the sealing vault and thus into the interior of tunnel construction (pressurized water Seal).

In a further preferred embodiment the sealing arch spaced from the boundaries of the underground cavity created by eruption, so that there is a space between the sealing vault and Outbreak limitation results, which with draining Tunnel constructions as a drainage room deriving the from the Escaping rock into the drainage pipes and thus also serves to relieve pressure. This too can Filled with a filler to fill the space Mountain pressure evenly towards the sealing vault to distribute. This is the case with pressurized water seals Particularly desirable, as this increases the risk a later breach of the seal falling or settling rock material can be significantly reduced.

It is particularly advantageous if between the sealing vault and the boundaries of the cavity additional vault, especially on segment elements and / or in the areas of Concrete or shotcrete vaults extending to the side walls is dispensed with, which is made possible by the invention, because of this both material and labor costs as well Time can be saved. Is a pressure-relieved This creates a special sealing vault advantageous because it introduces constipation Foreign substances in the drainage inflow in the can be substantially prevented. One exclusively in the area of the cavity ceiling made of shotcrete Head protection can be specified by regulations and poses nothing extending to the side walls Shotcrete vault.

In a further preferred embodiment following the creation of the sealing vault in the an inner shell enclosed by this sealing vault, especially an inner shell made of concrete, created. For reasons of operational safety, this indicates Inner shell has a significantly higher load reserve than the sealing vault and is therefore able to, too increased rock loads, e.g. through with time Settlement can occur in the rock, and, in the case of pressurized water Arches, the mountain water pressure too bear. The inside of the sealing arch is advantageous as outer formwork for casting one Inner shell made of concrete is used, which simplifies it and material savings when formwork leads. In this case, the inner shell takes over or supplements after the concrete that forms them has hardened Supporting functions of the sealing vault.

In another preferred embodiment, this is Sealing vault with additional, essentially selective and / or reinforcements that act in a linear manner, preferably in the interior of the sealing arch attached structures, in particular reinforcement trusses, Reinforcement rings, reinforcement arches and / or Latticework, e.g. Steel mesh mats used that are only an insignificant reduction in size Effect clearance profile. It is also preferred to Reinforcement of tie rods in the area surrounding the rock eruption Fasten the rock and connect it to the sealing arch. It is particularly advantageous to use the tie rods in Interior of the sealing vault arranged reinforcing means to connect in such a way that these together form a Form reinforcement. The tie rods used are included Advantage designed such that the tensile forces receiving element in one with the sealing arch waterproof connected sleeve is arranged so that this does not impair the sealing function results. For pressurized water seals is one Sealing any passing through the sealing arch Tie rods against the vault are mandatory necessary. Such fasteners are commercial available. However, it is also possible for others Fasteners to use and only the Seal the passage of the tie rod through the sealing arch. Depending on the application and the size of the vault, through Use of reinforcement means the thickness of the sealing arch be reduced or its load capacity certain requirements, such as thick layers of filler material between the sealing vault and the boundary of the Cavity in the rock.

The sealing vault is preferably included additional feed means for subsequent Feeding liquid or pasty material into the Area between the sealing vault and the boundary of the Provided cavity, which are designed around the Feeding from the interior of the completed tunnel construction to enable her. These feeders are advantageous formed as a compression fitting, which itself radially through any inner shell of the tunnel extend through. Should it be after a period of time leakage or further hardening outside of the tunnel construction is desirable appear a cement suspension, mortar or one or more other sealing substances feed these feeders and the area between Sealing vault and the boundary of the cavity press and seal.

It is also advantageous if between the Dome and the boundaries of the underground Cavity introduced a pressure-resistant filler especially a bed of loose rock material, in particular from rock split or gravel, which in the case of a sealing vault relieved of pressurized water should have good water permeability. This Filling material is preferably introduced prior to possibly creating an inner shell. Become a means of strengthening the sealing vault used, it is preferred to follow the Introducing the filling material, pressing the same by moving the sealing arch towards the Limiting the underground cavity with the help of Reinforcement, which is advantageous Spreading or lifting of arranged in the sealing vault Reinforcing agents, e.g. Reinforcement arches or Wire mesh, and / or by tightening between the sealing vault and the boundary of the cavity arranged tie rods.

It is also preferred to make the vault from one to produce at least partially translucent material, because this is a simple visual success check when filling material is brought into the room between the sealing vault and the cavity boundary.

The sealing arch is advantageously made of an at least partially flexible and essentially dimensionally stable plate material created, i.e. out at least one material plate. At least under one partly flexible and essentially dimensionally stable Panel material becomes material panels and composite panels understood which are only under Deform force, especially warp, and which are a support structure capable of is, besides its own weight, more from the outside to bear attacking loads. The plate thickness will preferably chosen such that a good one Load capacity ensured even with larger vaults and the possibility of mechanical destruction the seal both during assembly and through later action due to pressure forces, subsidence and rockfall is low. Especially with the Creation of sealing vaults containing pressurized water the plate thickness for reasons of risk of injury by mechanical action preferably thicker than 4 mm, more preferably thicker than 8 mm.

In a preferred embodiment, the Sealing vault made of a plastic sheet material created, which makes it possible to get cheap and maintenance free Sealing vault with a low weight and to maintain a long service life. Are preferred thermoplastic plastic sheet materials as through this in a simple and reliable manner Welding out with each other and / or with other elements a similar thermoplastic material leave and in this way tight connections achieved become.

In a preferred embodiment of the invention several plastic plates are used to form the sealing vault welded together. In another advantageous embodiment are used to form the sealing vault several plastic plates on their in the direction of extension of tunnel construction oriented and contiguous Boundary edges welded to sealing arch arches and that in the direction of the tunnel construction sealing arch arches arranged one behind the other on their opposite boundary edges through plug connections connected with each other. These connectors can be formed by profiles in which the Boundary edges of the plastic sheets forming the vaulted arches be plugged in. The profiles can also Sealing and fastening elements such as Sealing lips, Have clamping edges, gears, etc. It is too conceivable, the profiles after insertion with the plastic plates to weld or at or after Insert to glue, which is particularly the case with the Creation of sealing vaults containing pressurized water required is. By creating the sealing vault from several The advantage of plates is that the size of the plates processing plates regardless of the vault size is selectable and the transport options and the Space on the tunnel construction site adjusted can be. The use of plug-in profiles makes it easier the alignment of the vaulted arches to each other and also enables a density against seepage water Connection of the vaulted arches even with irregular ones Boundary edges and with uneven distances between the boundary edges of the to be connected Vaulted arches, what for pressure-relieved seals is sufficient. However, it is also possible to use the in Extension direction of the tunnel construction one after the other arranged sealing arch arches on their opposite Boundary edges even without a previous one Put together by welding together connect.

In another preferred embodiment, a Plate material used to form the sealing vault, that on its the boundary of the underground cavity facing side spacer. This are advantageous as spacers or spacers formed, preferably from the same material as the plate material and preferably in one piece with this trained. The use of such sheet materials with spacers ensures that at relative uniform cavity boundaries, such as those when excavating certain rocks with tunnel boring machines arise, a minimum distance in all areas between the sealing vault and the boundary of the underground cavity as a filling space and / or drainage space preserved.

In a further preferred embodiment is the sealing arch by extrusion of the forming Material created in the underground cavity. For this purpose, the exit of the extrusion nozzle essentially points the profile of the sealing arch across it greatest extension. However, it is also conceivable several partial profile pieces with separate extrusion nozzles produce and then this by a suitable Method, e.g. Welding or glue to join. The Create a sealing vault by extruding one Material in the underground cavity gives the advantage that there is no need to transport bulky sheets of material and automated creation of the sealing vault becomes possible. You can also do this for a very long time Execute the sealing vault in one piece.

Fig. 1a einen Schnitt durch einen Tunnelbau mit druckwasserentlastetem Dichtgewölbe quer zu dessen grösster Erstreckung;

Fig. 1b einen Schnitt durch die Tunnelsohle des Tunnelbaus aus Fig. 1 im Falle der Ausbildung des Dichtgewölbes als druckwasserhaltendes Dichtgewölbe;

Fig. 2 einen Schnitt durch eine Steckverbindung zweier Dichtgewölbebögen des Tunnelbaus mit druckwasserentlastetem Dichtgewölbe aus Fig. la in Richtung dessen grösster Erstreckung;

Fig. 3 einen Schnitt durch einen Tunnelbau mit einem druckwasserentlasteten Dichtgewölbe mit Verstärkungsbögen quer zu dessen grösster Erstreckung;

Fig. 4 einen Schnitt durch einen Tunnelbau mit einem druckwasserentlasteten Dichtgewölbe mit Felsankern quer zu dessen grösster Erstreckung;

Fig. 5 einen Schnitt durch einen Tunnelbau mit einem druckwasserentlasteten Dichtgewölbe mit einer Innenschale aus Beton und einer Splitfüllung im Drainageraum quer zu dessen grösster Erstreckung;

Fig. 6 einen Schnitt durch die Wand eines druckwasserhaltenden Tunnelbaus mit Innenschale aus Beton und eine verpressten Mörtelfüllung zwischen Dichtgewölbe und Ausbruchsbegrenzung.

Further preferred embodiments of the invention result from the dependent claims and from the description that follows with reference to the figures. Show:

1a shows a section through a tunnel construction with a sealing arch relieved of pressurized water transversely to its greatest extent;

1b shows a section through the tunnel sole of the tunnel construction from FIG. 1 in the case of the design of the sealing arch as a pressurized water-retaining sealing arch;

2 shows a section through a plug connection of two sealing arch arches of the tunnel construction with a sealing arch relieved of pressurized water from FIG. 1 a in the direction of its greatest extent;

3 shows a section through a tunnel construction with a sealing vault relieved of pressurized water with reinforcing arches transverse to its greatest extent;

4 shows a section through a tunnel construction with a sealing arch relieved of pressurized water with rock anchors transversely to its greatest extent;

5 shows a section through a tunnel construction with a sealing vault relieved of pressurized water with an inner shell made of concrete and a split filling in the drainage space transverse to its greatest extent;

Fig. 6 shows a section through the wall of a pressurized water tunnel construction with an inner shell made of concrete and a compressed mortar filling between the sealing vault and outbreak limit.

The basic principle of the invention is in Fig. La shown. In a first step, an underground one Cavity 1 created. The example shown shows a generated by blast eruption in rock 2 Cavity 1, in which the limits 3 due to Outbreak method are very irregular. However, it is also provided the cavity 1 by drilling or with to create other breakout methods, creating voids arise with much more regular limits 3. Even if in the description of rock outlined here 2 is mentioned, the cavity 1 can also in all other environments that the Formation of an at least temporarily self-supporting Allow cavity 1. After such one Cavity 1 is generated and the bottom 4 of the cavity 1 prepared to enable further work vaulted arches 5 by welding plastic plates together 6a, 6b, 6c on their in the direction of extension of the tunnel construction oriented and adjacent boundary edges created in cavity 1. The weld seams 7 result in a stable and watertight connection between the plates 6a, 6b, 6c. The connection of the in the direction of extension of the tunnel construction arranged one behind the other Arches 5 among themselves can also be welded or also by gluing, by clamp connections and / or by plug connections become. Outside the sealing arch 5 in the direction of extension of the tunnel, as in the present case a draining tunnel construction, drainage lines 8 and / or discharge channels for the controlled discharge of the emerged from rock 2 and from the sealing vault 5 derived water can be arranged.

Fig. 1 b shows the structure of the tunnel sole of the Tunnel construction from Fig. La in the event that the tunnel construction a pressurized water tunnel with a pressurized water Sealing arch 5 is. As in this illustration is clearly visible, the pressurized water stretches Sealing arch 5 also over the area of the tunnel sole and encloses the tunnel interior with the one inside located tunnel floor 4 completely and tightly, so that penetration of water into the tunnel interior also impaired water drainage and the resulting rising water level and / or pressure build-up prevented becomes. With such a configuration of the sealing arch 5 it may be entirely desirable to drain lines outside the vault 8 waive the cost of installation and maintenance save to prevent the mountains from leaching and / or not existing hydrological conditions to affect.

The connection of two in a row arranged sealing arch arches 5 of a pressure water-relieved Sealing vault by means of a plug-in profile is in Fig. 2 shown. As can be seen, the Boundary edges of the vaulted arches 5 Plastic plates 6 in the opposite grooves a profile 9 inserted, whereby the boundary edges aligned with each other and with each other be connected in such a way that it flows from the outside Leachate is derived and not in the Vaulted arches formed can reach interior. Should the connector also transmit tensile forces can, it is provided, the profile bar 9 by non-positive and / or positive fastening elements such as. Clamping edges and / or toothing too complete. It is also conceivable for additional sealing elements such as. Supplement sealing lips. It is also planned the profile 9 with the plastic sheets forming the vaulted arches 6 to weld or glue what is particularly necessary if this way a sealing vault 5 holding pressurized water is formed should. The sealing arch 5 thus formed serves on the one hand Sealing the tunnel interior against the ingress of Water and secondly as all-round protection against falling Rock. The sealing arch 5 thus takes one Dual function was and is going through rock safety Applying shotcrete to large parts of the boundary surfaces 3 or by creating tubbing rings previously unnecessary for sealing, which means that when State of the art separate work step required the prior creation of an all-round backup is not necessary. As can also be seen from Fig. 2, with advantage plate materials used on the Side that faces outwards when creating the vault comes to lie, have spacers. The ones shown here Plastic plates 6 have at their Limitation 3 of the cavity 1 facing side spacer webs 10, which are made of the same material as that Plates 6 are made and in one piece with them are trained. In addition to these in the installed state radially extending webs 10 are also selective Supports such as fixed or attachable trestles, from the same or a different material, conceivable. In this way it can be ensured that between the sealing arch 5 and the boundary 3 of the cavity 1 everywhere given by the spacers Minimum distance as drainage or, if applicable, as Injection cavity is present.

Should the load capacity and / or dimensional stability of the sealing arch 5 can be improved, for example around thicker filler layers or pressed layers heavy material such as Rock split, rubble, or mortar to wear, are punctiform and / or linear on Sealing vault 5 provided reinforcing means. Fig. 3 shows a sealing arch 5 with one in it Reinforcement arch 11 arranged in the interior essentially along a circumferential line on the inside of the vault 5 is present and this reinforces it. This here Reinforcement arch 11 shown is made of a metal profile material manufactured, but it can also be used as Truss arch should be formed. It is also conceivable that Reinforcement means both in one piece and in several pieces to train. Generally all are punctual and / or suitable as a line-shaped reinforcing agent, which can easily be found inside the Dome 5 can be created and only a minor Reduction of the clearance profile of the sealing vault 5 cause. This also includes Wire mesh constructions, which also at Creation of a concrete inner shell serve as reinforcement can. The reinforcing means can also be additional Devices for lifting or spreading the sealing arch include, which is particularly advantageous if it is about a filling layer surrounding the sealing vault to press against the rock. Those shown in Fig. 3 Printing elements 12 allow one in the present case Relieved of pressurized water in the area of the tunnel floor opened sealing vault a spreading and lifting the Reinforcement arch 11 and thus also the sealing arch 5.

4 shows a sealing arch 5, which has tie rods 13 as reinforcing means fixed in rock 2 and connected to the vault 5 are. The tie rods 13 used are e.g. for commercially available fasteners, which consists of a plastic sleeve with a Sealing flange and one arranged in its center Threaded rod with an abutment element, e.g. one Mother, exist. The fastener is replaced by a Hole in the sealing arch 5 into a borehole in Rock 2 introduced and in this by gluing, Concreting or spreading attached. The sealing flange of the Sleeve is on the inside of the vault 5 for Sealing connected to the arch 5, e.g. by gluing or welding. The from the sealing flange of the sleeve in entering the sealed interior of the vault 5 Threaded rod with its against the inner surface of the sealing arch 5 attacking abutment element then serves as a selective reinforcing element and also allows a certain radial positioning of the Arch 5 in the cavity 1. It is also on this Possible with the sealing arch shown, a introduced between the sealing arch 5 and the cavity boundary 3 Filling layer by tightening the abutment element to be pressed in the direction of the cavity boundary 3.

In the example shown in Fig. 2 points the sealing vault arranged both in its interior Wire mesh 16 made of steel wire and tie rod 13, which are connected here in such a way that they a coherent reinforcement for the sealing vault form. Again, here is the limit 3 of the Cavity pressed filling layer 14 recognizable. This kind the reinforcement is suitable for pressurized water like Sealing vaults relieved of pressure water equally.

Fig. 5 shows the pressure water relieved Sealing arch 5 from FIG. 4 with a filling layer Rock split 14 between the sealing arch 5 and the cavity boundary 3 in rock 2. As filling material In this case, all materials come into question, which ones can not be compacted and good water permeability also in the pressed state and are suitable, the weight of itself possibly from the Limit 3 releasing pieces of rock and pressure forces take up the mountains and in a uniform form to transfer the sealing arch 5. This will both a safe discharge and pressure relief from the Rocks 2 escaping water ensured long-term as well as the risk of damage to the sealing vault 5 diminished by falling rock. The 5 also shows a tunnel construction in the Sealing vault 5 arranged inner shell 15 made of concrete. The outer surface of the inner shell 15 directly abuts that Sealing vault 5, which when created as external formwork and all-round security served. In the The situation shown here takes over the inner shell 15 after hardening of the concrete forming this under the supporting functions of the sealing arch 5.

Is the vault 5 shown as pressurized water Sealing arch 5 designed, e.g. according to Fig. 1b, so it is provided, the tunnel construction in such a way to design that the possibility of a subsequent Compression of the filled cavity between the sealing vault 5 and cavity limitation 3 with a cement suspension, with mortar or with one or more other sealing substances is present.

Fig. 6 shows a section through the wall a corresponding tunnel construction with a pressurized water Arch 5 made of plastic plates 6, one Inner shell 15 made of concrete and a filling made of grit 14 between sealing arch 5 and cavity boundary 3. The Chipping filling 14 was retrofitted with a cement suspension 17, which from inside the tunnel through a or more arranged on the sealing arch 5 and through the concrete inner jacket 15 extending through Injection connector 18 in the area between sealing arch 5 and breakout limitation 3 was inserted, pressed, to close any leaks and / or the To increase the load capacity of the tunnel in this section. In this way, as shown, only targeted certain areas can be pressed, are at Introducing the filling material 14 during the creation of the tunnel construction at regular intervals 19 made of shotcrete or other materials, which the filled cavity between sealing vault 5 and cavity restriction 3 in several essentially Divide separate, filled partial cavities.

Claims (33)

A method of creating sealed underground tunnels comprising the following steps: a) creating an underground cavity (1); b) Creating a load-bearing sealing arch (5) in the underground cavity (1) from a water-impermeable and at least partially flexible and essentially dimensionally stable material. The method of claim 1, wherein a Sealing vault is created, which is in the circumferential direction and in the direction of the longitudinal extent of the to be created Tunnel construction is closed and tight. Method according to one of the preceding Claims, wherein the sealing arch (5) essentially from the boundaries (3) of the cavity (1) spaced apart is arranged. Method according to one of the preceding Claims, between the sealing arch (5) and the Limits (3) of the cavity (1) no additional load-bearing security vault, in particular none Segment elements and / or in the areas of the side walls extending concrete or shotcrete vault to be ordered. Method according to one of the preceding Claims, following the creation of the Sealing vault (5) in the interior of this vault Inner shell (15) is created, and in particular, being an inner shell (15) made of concrete in the interior of the sealing vault (5) is created. The method of claim 5, wherein the Inside of the sealing arch (5) as an outer casing for casting an inner shell (15) made of concrete is used. Method according to one of the preceding Claims, wherein the sealing arch (5) with additional, essentially punctiform and / or linear attacking means of reinforcement (11, 13, 16) is provided. The method of claim 7, wherein the Means for reinforcement from inside the sealing vault (5) attached structures, in particular from reinforcement trusses, Reinforcement rings, reinforcement arches (11) and / or from latticework (16) are formed, and in particular, the means for reinforcing spreading and / or Include lifting means (12). Method according to one of claims 7 to 8, wherein as a means of reinforcing tie rods (13) in the the cavity (1) surrounding material (2) attached with which the sealing arch (5) is connected, and in particular, with which the sealing arch and / or to this belonging and arranged in its interior Means of reinforcement (11, 16) are connected. Method according to one of the preceding Claims, wherein the sealing arch (5) with additional Feeding means (18), in particular with compression fittings (18), for the subsequent supply of liquid to pasty material from the interior with this sealing arch (5) created tunnel construction in the area between the sealing arch (5) and the boundary (3) of the Cavity (1) is provided. Method according to one of the preceding Claims, between the sealing arch (5) and the Limits (3) of the cavity (1) a filling material, in particular with good water permeability is, in particular a bulk of loose pressure-transmitting Material, in particular from rock split (14) or Gravel. Method according to claim 11 and according to of claims 7 to 9, wherein following the introduction a filling of the filling material by moving the sealing arch (5) in the direction of the Limitation of the cavity (1) with the aid of the means Reinforcement (11, 13, 16) is made, and in particular, that this compression by spreading or lifting of reinforcement means (11, 16) and / or by tightening between the Sealing arch (5) and the boundary (3) of the cavity (1) arranged tie rod elements (13) is made. Method according to one of claims 11 to 12 and according to one of claims 5 to 6, wherein the introduction of filling material (14) between sealing arch (5) and cavity limitation (3) prior to creating the Inner shell (15) takes place. A method according to claim 10 and according to of claims 11 to 13, wherein the filling material (14) between the sealing arch (5) and the boundaries (3) the cavity (1) by supplying a liquid to pasty material, especially by feeding Cement suspension, mortar or other sealing Substance by at least one supply means (18) is pressed through. Method according to one of the preceding Claims, wherein the sealing arch (5) from at least one partially translucent material is created. Method according to one of the preceding Claims, wherein the sealing arch (5) made of a plate material (6, 6a, 6b, 6c) is created, in particular from a plate material with a plate thickness greater than 4 mm, especially larger than 8 mm. The method of claim 16, wherein the Sealing arch (5) made of a plastic plate material (6a, 6b, 6c) is created, in particular from a thermoplastic sheet material. The method of claim 17, wherein a plurality Plastic plates (6a, 6b, 6c) to form the sealing arch (5) welded together, and in particular, with several plastic plates (6, 6a, 6b, 6c) their oriented in the direction of extension of the tunnel construction and adjoining boundary edges to form sealing arch arches (5) are welded and the in Extension direction of the tunnel construction one after the other arranged sealing arch (5) on their opposite Boundary edges through plug connections (9) connected together, and in particular, wherein the plug connections are welded or glued. Method according to one of claims 16 to 18, a plate material being used to form the sealing arch (5) (6, 6a, 6b, 6c) is used on its the boundary (3) of the cavity (1) facing side Has spacers, and in particular that on this Spacer webs (10) and / or spacer supports has, and in particular, the spacer, which are made of the same material and in one piece are trained with this. Method according to one of claims 1 to 15, the sealing arch (5) by extrusion of the material is created in the underground cavity (1). Application of the method according to one of the previous claims to create a draining or pressurized water tunnel construction. Draining or pressurized water Tunnel construction, producible with the method according to one of the Claims 1 to 20. Sealing arch (5) for sealing underground tunnel structures, characterized in that this is a stable vault made of a water-impermeable and at least partially flexible and essentially dimensionally stable material. Sealing arch according to claim 23, characterized characterized that the sealing vault in the circumferential direction and in the direction of the longitudinal extent of the to be created Tunnel construction is closed and tight. Sealing arch (5) according to one of the claims 23 to 24, characterized in that this consists of a at least partially translucent material is made. Sealing arch (5) according to one of the claims 23 to 25, characterized in that this consists of a Plate material (6, 6a, 6b, 6c) is made, and in particular that the plate material has a thickness of at least 4 mm, in particular at least 8 mm having. Sealing arch (5) according to claim 26, characterized in that it is made of a plastic sheet material (6, 6a, 6b, 6c), in particular from one thermoplastic sheet material is. Sealing arch (5) according to claim 27, characterized in that this consists of several together welded plastic plates (6, 6a, 6b, 6c) is made, and in particular that this from several plastic plates (6, 6a, 6b, 6c) are produced is that at their in the direction of extension of the tunnel construction oriented and adjacent boundary edges are welded to sealing arch arches (5) and the one behind the other in the direction of extension of the tunnel construction arranged sealing arch (5) on themselves opposite boundary edges through plug connections (9) are interconnected, and in particular, these plug connections are welded or glued are. Sealing arch (5) according to one of the claims 26 to 28, characterized in that this consists of a Plate material (6, 6a, 6b, 6c) is made on its facing the boundary (3) of the cavity (1) Side spacer, and in particular that on this side spacer bars (10) and / or spacer supports has, and in particular, the spacer, which are made of the same material as the board material (6, 6a, 6b, 6c) and are integrally connected to it are. Sealing arch (5) according to one of the claims 23 to 25, characterized in that the sealing arch is integrally formed from an extruded material. Sealing arch (5) according to one of the claims 23 to 30, characterized in that this is essentially selective and / or line attacking agents for reinforcement (11, 13, 16), and in particular, that these reinforcing agents in the interior of the sealing vault (5) arranged reinforcement trusses, reinforcement rings, Reinforcement arches (11) and / or latticework (16) and / or in the material (2) surrounding the cavity (1) attached tie rods (13). Sealing arch (5) according to claim 31, characterized in that the tie rods (13) with the in Interior of the sealing vault (5) arranged reinforcing means (11, 16), especially with in the interior arranged wire mesh (16) made of steel wire, connected are such that they are a coherent reinforcement form for the sealing arch (5). Use of the sealing arch (5) after one of claims 23 to 32 as an all-round backup during the creation of sealed underground tunnels with inner shell (15).

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