EP1514998A1 - Tunnel drainage construction - Google Patents

Abstract

A method for constructing a self draining tunnel, i.e. preventing hydraulic pressure build up between the tunnel and the rock, has the tunnel support (2) assembled with a spacing inside the excavation and with the trapped space filled with rubble, e.g. gravel, loose stone etc. The actual tunnel (9) is constructed inside the support shell. The loose infill (6) provides drainage zones (5a) each side of the tunnel. The roof of the excavation is secured by sprayed concrete (8) with the upper space (5b) between the tunnel support and the roof filled with reinforcing material. The tunnel support structure is sufficiently strong to support the loose infill until the tunnel proper is completed, and can be further reinforced by rock anchors.

Description

The present invention relates to a method to create a draining underground Tunnel construction, the application of the method of creation a draining tunnel and a draining Tunnel construction according to the general terms of the independent claims.

Underground tunnels serve in the most cases for transport purposes and preferably come there used where certain transport capacities with above ground Means not or only in uneconomic Way can be provided. This is true especially when it comes to roads or Rail vehicles geographical barriers, such as e.g. Mountains, to cross. Because the cost of creating of railway and road tunnels considerably Are and maintenance often with a loss of use go hand in hand with very high durability requirements such structures. A central point represents in addition to the actual creation costs for the tunnel structure sealing the interior of the tunnel against escaping from the mountain water and the safe Derivation of this water.

In early times of tunnel construction was after the rock outcrop the tunnel vault of individual Bricks created in the excavated cavity and the outer surface is then sealed with a mortar layer. The one between the rock and the mortar layer cavity was formed with a bed of Refilled rock rubble and served as one of the reliable drainage room for drainage and pressure relief of the water leaving the mountain. The between the breakout edge and the outside of the Innenmauerung infused rock rubble served as Support body to a relaxation of the mountains prevent.

The advent of shotcrete, concrete, rock anchors and of plastics as materials in tunneling has displaced this construction. Today will be different other constructions practiced.

Thus, with tunnel constructions with concrete Inner shell enforced, after the rock outbreak by drilling or blasting in a second step one All-round protection against falling rock by applying from shotcrete to the rock as well as moving from Rock anchors or by moving segmental rings too create. In a third step becomes a fleece fabric or a drainage mat as a drainage layer from the inside applied to this all-round protection (tubbing or shotcrete). In a fourth step becomes a waterproofing membrane applied to the nonwoven fabric or the drainage mat and then in a fifth step, the inner shell adjacent to the inside of the waterproofing membrane concreted, wherein the nonwoven fabric or the drainage mat compressed to a thickness of a few millimeters becomes. This drainage layer is in the installed state (new condition) strong enough to emerge from the rock Derive water and thus the pressure relief of To ensure inner shell. Over time it can however, for washing lime and other components from the rock and the concrete of the all-round safety. This also referred to as a sintering process leads operation to a limitation or even loss of ability the drainage layer to divert water, causing it to an unscheduled water pressure build-up on the inner shell can come. This in turn can cause damage the supporting structure and other important elements lead the tunnel.

EP 1 108 855 and EP 1 267 035 disclose tunnels with concrete inner shell reveals which be created by that after the rock outbreak first a vault made of plastic sheets or from a grid-like support structure with sealing foil is created, which as a wrap around and as a tunnel seal serves, then the space between the Limitations of the rock outcrop and the vault with Gravel or rock split is filled and then the Inner shell is concreted, with the vault as external formwork serves. While in this way large drainage rooms generate, which is a safe derivative of the mountain water permanently has been shown that a tight filling of the interspace between the boundaries of the rock outcrop and the Vault with gravel or rock split in the ceiling area (ridge area) can hardly be reached.

For tunnel structures without concrete inner shell is in many cases after the rock eruption in erupted cavity from a self-supporting vault plate-like elements created, which the protection of the Tunnel interior in front of water and in front of falling rocks serves. Such constructions are e.g. in GB 2 325 946, WO 91/13239 and, inter alia, in EP 1 108 855 described and have the disadvantage that the Sealing plate-like elements practically unprotected by the action of falling rocks are exposed, causing them after a relatively short time can be leaking.

In US 4,940,360 a tunnel construction of the described above, in which purpose Prevention of falling rocks of the Gap between the breakout surface and the Insulation elements with a light, chemically setting Filling material is filled. Previous for introduction of the filling material is the eruption surface with a release agent treated so that after the Curing and the associated shrinkage of the Fill material between the breakout surface and the hardened filling material forms a drainage gap. There this gap, however, only by the volume shrinkage the filling material is generated during curing is he is relatively narrow, so it becomes constipated with time and this can lead to a pressure build-up.

It is therefore the task, a procedure for creating a draining tunnel structure and a draining tunnel construction available provide, which the aforementioned disadvantages of the state The technique does not have or largely avoid.

This task is supported by the method and the Tunnel construction according to the independent patent claims solved.

A first aspect of the invention comprises Method of creating a draining, underground Tunnel construction, which is at least along the tunnel ceiling and the tunnel side walls throughout extending tunnel seal, e.g. from one Plastic waterproofing membrane, which allows penetration from the Tunnel environment of incoming water into the tunnel interior safely prevented, as long as the water dissipated and no appreciable pressure build-up takes place. The Tunnel seal is used when building the tunnel structure seen over their entire circumferential extent at a distance from the boundaries of the tunnel environment arranged. Under tunnel environment here is the material understood in the previous to create the tunnel structure created this receiving underground cavity is, in tunnels in rock so the rock surrounding this cavity. The one between the limits the tunnel environment and the tunnel seal lying area is when creating the tunnel structure so filled with material that in this area in Circumferential direction of the tunnel structure seen different Zones with different pressure transfer capability and / or drainage capability are formed. This For example, filling can be done by filling one between the limitations of the tunnel environment and the already completely or partially installed tunnel seal formed intermediate space with material or by lining the boundaries of the tunnel environment, e.g. by spraying material layers and / or arranging flat elements, e.g. plates made of pressure-resistant and water-permeable materials, to the same, before to create the tunnel seal. In other words, according to the invention is therefore at draining tunnel structures where the tunnel seal spaced from the breakout boundaries is the area between breakout limit and Tunnel seal over the perimeter of the tunnel seal seen specifically with different filling materials designed with different characteristics, with the result that different local requirements concerning pressure transmission and / or drainage specifically taken into account. This allows the disadvantages of the prior art are avoided.

Preferably, in the tunnel circumferential direction seen in the area between breakout limit and tunnel seal at least partially different Materials arranged, e.g. in a zone of rock split and in another zone concrete, whereby the thus formed different Zones certainly also over common material layers, e.g. a continuous all-round security Shotcrete, may have. This can be the desired different properties of different Particularly easy to bring about zones.

However, it is also envisaged the various Zones in whole or in part by different Processing of the same materials, e.g. by doing certain materials are compacted in one area and in another area, e.g. by means of blowing agents, be loosened up.

In a preferred embodiment of the invention is the area between the boundaries of Tunnel environment and the tunnel seal filled in such a way, that in the ceiling area (ridge area) a zone with other properties regarding the pressure transfer capability and / or the drainage ability results as in the areas of the tunnel side walls, where it is preferred is when the zones in the area of the side walls one have a higher drainage capacity than the zone in Ceiling area. It is also preferred if the zone in the ceiling area a greater pressure transmission capability, in particular a better composite for transmission of shear and compressive forces, as the zones in the side areas. This will make it possible, a good Pressure transfer from the tunnel environment to the inner shell and good protection of the tunnel seal to ensure mechanical damage and at the same time a good mountain water drainage or pressure water discharge sure.

Preferably, the range between the limitations of the tunnel environment and the tunnel seal in the area of the two tunnel sides with a pressure-transmitting, filled with water-permeable bulk material, which is preferably unbonded, so that it also pourable after introduction into this area remains and thus also in any subsidence of the tunnel environment in the side area always a large area Pressure transmission between tunnel environment and tunnel structure guaranteed. As bulk materials come here preferably Rock split, boulders or gravel are used.

In the ceiling area (First) becomes the area between the limitations of the tunnel environment and the Tunnel seal with advantage with a bound, pressure-transmitting filling material filled, which hardens and thereby at any subsidence of the tunnel environment can not relocate, so that permanently good protection of the tunnel seal against mechanical Damage is ensured. Preferably come here as filling material concrete, mortar or a filling resin-bonded gravel for use.

It is beneficial if the tunnel seal in the ceiling area directly adjacent to this shotcrete layer is arranged, as so on more costly Fillers can be dispensed with and also one the lowest possible overprofile of the underground cavity opposite the clearance gauge of the tunnel structure is required, which also saves costs to let.

Preferably, in the aforementioned case both in the ceiling area and at least partially in the ceiling area Area of the sidewalls on the boundaries of the tunnel environment applied a shotcrete layer as a wrap around and then in the area of the side walls between the shotcrete layer and the tunnel seal one Layer of pressure-resistant, water-permeable filling material arranged. As a result, an inventive Tunnel construction with large drainage areas on uncomplicated Way even under increased security requirements be created, which in particular when creating long Tunneling is of great importance.

Advantageously, with the inventive Process a tunnel structure with concrete inner shell created because of such tunnels the advantages the invention particularly evident.

It is preferred if the tunnel seal when concreting as lost external formwork is used because it saves time and money.

In a further preferred embodiment of inventive method is first an underground Cavity created in an environment and then in the ceiling area or in the ceiling and in the side areas applied a layer of shotcrete, which depending on their extent as a head protection or as All-round security serves. Then in the side areas created the tunnel seal, so that on each Side between tunnel seal and the boundaries of the Cavity or arranged on these boundaries Shotcrete layer an upwardly open space is formed, which is accessible from inside the tunnel ago. Subsequently, the two spaces from above filled with a filling material from inside the tunnel, whereupon the tunnel seal in the ceiling area directly adjacent to the shotcrete layer or directly adjacent to a previously arranged on the shotcrete layer Layer of a nonwoven material or a dimpled film web created and thereby completed. Finally an inner shell of concrete is poured, the Tunnel seal as lost outer formwork is used. By such a method, it becomes possible to have a draining sealed tunnel structure practically continuous, to create continuously in the direction of advance, i.e. the individual process steps can be done simultaneously seen at different positions in the direction of advance be carried out, namely the first step, the creation of the underground cavity, on Foremost position and the last step, the Concreting the inner shell, in the last position.

Preferably, in the previously set forth Method as tunnel seal a waterproofing membrane used in plastic. This way you can the tunnel seal made cost-effective and already proven materials are produced.

It will be advantageous to create the tunnel seal in the page areas on each side of the page future tunnel structure a separate waterproofing membrane with one arranged on its inside Support structure arranged and supported such that They in this area about the desired outer contour of the later to be created concrete inner shell and the and after filling up the pressure of the filling material withstand its outside. During concreting the inner shell serve the support structures at the same time as a reinforcement, so that at least in the Side areas in whole or in part on additional reinforcements can be waived.

Preferably come as a support structures curved grating elements are used, since these one ensure good support of the sealing film webs and also represent a preferred form of reinforcement.

To complete or close the tunnel seal be the two separate sealing films advantageously connected together in the ceiling area, which is preferably by gluing or welding he follows.

In addition, it is in tunnels with a Shotcrete layer on the boundaries of the tunnel environment in the ceiling area advantageous, the sealing film attach directly to this shotcrete layer what Advantageously done by sticking.

Advantageously, the inventive method carried out as a continuous process, at as previously in a preferred embodiment set out the individual process steps simultaneously and locally continuous in tunneling direction be executed. Such methods facilitate one smooth workflow and help idle times and thereby saving time and money.

A second aspect of the invention relates an application of the method according to the first aspect the invention for creating draining underground Tunnels.

A third aspect of the invention relates to draining tunnel construction, which can be produced according to the method according to the first aspect of the invention.

In a preferred embodiment the tunnel structure a concrete inner shell, the on the outside in the area of the sides and the ceiling a sealing layer preferably of a plastic sealing film having. Adjacent to the outside the sealing layer is one in the area of the tunnel sides Layer of pressure-resistant and water-permeable Filler arranged, preferably from rock split, Gravel and / or scree, and in the area of the ceiling one Layer of concrete. Such a tunnel construction is inexpensive in production and in maintenance and guaranteed In addition, a permanently good drainage of the mountain water.

Preferably, this is the outside of the tunnel structure adjoining the tunnel environment, in the ceiling area and preferably in Deckenund in the lateral areas of the tunnel structure of a applied to the limitations of the tunnel environment Shotcrete layer formed, which in addition to it contributes, a possible violation of the tunnel structure prevent by settling surrounding material.

Fig. 1 ein erstes erfindungsgemässes Tunnelbauwerk im Querschnitt;

Fig. 2 ein zweites erfindungsgemässes Tunnelbauwerk im Querschnitt;

Fig. 3 ein drittes erfindungsgemässes Tunnelbauwerk im Querschnitt;

Fig. 4 ein viertes erfindungsgemässes Tunnelbauwerk im Querschnitt;

Fig. 5 eine Hälfte eines fünften erfindungsgemässen Tunnelbauwerks im Querschnitt;

die Figuren 6A bis 6D einen Längsschnitt durch eine Baustelle zum Erstellen des Tunnelbauwerks aus Fig. 5;

Fig. 7A einen Schnitt entlang der Linie A-A in Fig. 6A;

Fig. 7B einen Schnitt entlang der Linie B-B in Fig. 6B;

Fig. 7C einen Schnitt entlang der Linie C-C in Fig. 6C; und

Fig. 7D einen Schnitt entlang der Linie D-D in Fig. 6D.

Further preferred embodiments of the invention will become apparent from the dependent claims and from the following description with reference to FIGS. Showing:

1 shows a first tunnel construction according to the invention in cross section;

FIG. 2 shows a second tunnel construction according to the invention in cross section; FIG.

3 shows a third tunnel construction according to the invention in cross section;

4 shows a fourth tunnel construction according to the invention in cross section;

5 shows a half of a fifth tunnel construction according to the invention in cross section;

Figures 6A to 6D is a longitudinal section through a construction site for creating the tunnel structure of Fig. 5;

Fig. 7A is a section along the line AA in Fig. 6A;

Fig. 7B is a section along the line BB in Fig. 6B;

Fig. 7C is a section along the line CC in Fig. 6C; and

Fig. 7D is a section along the line DD in Fig. 6D.

A first tunnel construction 1 according to the invention in a tunnel environment of rock is in cross section shown in Fig. 1. As can be seen, points the tunnel structure 1 a concrete inner shell 9, On the outside of a tunnel seal 2 curved and welded plastic plates is arranged. The area between the boundaries 4 the tunnel environment and the tunnel seal 2 is in Area of the tunnel sides each filled with gravel 6 and in the ceiling area filled with concrete 7, 8, leaving this Space in the circumferential direction seen in three zones with different properties regarding pressure transfer capability and drainage capacity is divided, and although in a very good regardless of the load area pressure transmitting and therefore well protective and also one symmetrical load of the tunnel construction ensuring Ceiling zone 5b, which is practically impermeable to water, and two very well water permeable and large area Pressurization good pressure-transmitting side zones 5a, which, however, in small-area pressurization, such as it can occur in dissolving rocks, the Pressure can only be insufficiently distributed and so only one can exercise limited protective function.

To create this tunnel structure is after creating an underground cavity in the rock by explosion blasting a head protection from shotcrete 8 to the boundaries 4 of the tunnel environment in the area applied to the ceiling of the cavity and the tunnel sole created. Then it is in the thus secured cavity a sealing arch 2, which in the finished tunnel construction 1 serves as a tunnel seal 2, by welding together and Warping under residual stress of plastic sheets created, such that this vault 2 spaced everywhere from the boundaries 4 of the cavity is. The sealing arch 2 is strong in the present case enough for himself and later on his outside arranged filler material layers 6, 7 temporarily, i.e. until creating the inner shell 9, too wear. Then the between the sealing arch 2 and the boundaries 4 of the cavity or the surface of the Head lock 8 formed gap in the area of Sites filled with gravel 6 and the tops of the gravel fillings 6 each with a thin shotcrete layer occupied, which as a barrier layer in the subsequent Filling the gap in the ceiling area with concrete 7 serves. Finally, the inner shell 9 of the tunnel construction plant 1 created, with the sealing arch 2 as lost outer formwork serves.

Fig. 2 shows a cross section through a Another inventive tunnel structure 1, which is in construction and in the creation methodology of the in Fig. 1 tunnel structure essentially differs thereby, that on a head protection from shotcrete 8 was omitted and the sealing arch 2 in addition to radial tie rods 13 attached in the surrounding rock has been. In a variant of this embodiment it is also provided, the sealing arch 2 instead of stable Plastic plates of a grid or net-like Support structure to form their lattice or network interstices of flat or plate-like fabrics are spanned. It is particularly preferred in one such case, when the sealing arch 2 of wire mesh mats is created on the outsides of a viable Fleece for carrying the filling materials and on the inside of a geomembrane as a future tunnel seal is arranged. It is preferred here that the geomembrane only after a complete fixing the respective wire grid arranged on this is excluded, so that a violation of the waterproofing membrane can be.

Fig. 3 shows a cross section through yet another Another inventive tunnel structure 1, also with an inner shell 9 made of concrete. The tunnel construction shown here 1 was created by that after the Rock outbreak by blowing on the boundaries of the Tunnel environment 4 a Rundumsicherung 8 shotcrete was applied and on these, in the area of the pages, one layer each of resin-bonded gravel 12 was sprayed, which after curing both very pressure resistant as well as draining well. Then it became a plastic sealing strip as a tunnel seal 2 on the surfaces of the all-round security 8 or the layer glued from synthetic resin-bonded gravel 12 and then the inner shell 9 concreted, the tunnel seal 2 was used as external formwork. Even if here the geomembrane directly on the all-round security 8 off Shotcrete or on the layer of resin-bonded Gravel 12 was glued, it is also provided between The latter and the geomembrane a fleece or to arrange a dimpled sheet. The tunnel construction created here 1 also points in the area between its tunnel seal 2 and the boundaries 4 of the tunnel environment in Seen circumferentially different zones 5a, 5b with different properties regarding pressure transfer capability and drainage capability and is thereby particularly durable and cost-effective in maintenance.

Fig. 4 shows a cross section through yet another Another inventive tunnel construction 1. Here, too the tunnel structure 1 has a concrete inner shell 9 on, on the outside of a tunnel seal 2 off a plastic sealing strip is arranged. While the tunnel seal in the ceiling area directly to the All-round protection of shotcrete 8 adjoins, she is in the side areas by a gravel pack 6 of this separated, so in the side areas as already at the previously shown embodiments large drainage rooms arise, which in the long run a good derivative of the mountain water emerging from the surrounding rock guarantee. As can be seen, in concrete the Inner shell 9 in the area of the side walls Wireframe mats 11 arranged, which the outer contour of the Concrete inner shell 9 follow in this area and with Tie rods 13 are anchored in the surrounding rock. These wire mesh mats 11 are used in creating the Tunnel construction 1 temporarily as a support structure for the tunnel seal 2 and finished in the illustrated Tunnel construction 1 as a reinforcement for the inner shell 9.

Fig. 5 shows a cross section through a Half of another tunnel structure according to the invention 1, which differs from that shown in Fig. 4 substantially it differs in that in the concrete of the inner shell 9 in the area of the side walls grid elements arranged, consisting of preformed mesh mats circumferentially extending stiffening wire webs are formed.

As can be seen from FIGS. 6A to 6B which is assembled in sequence 6A-6B-6C-6D a longitudinal section through a tunnel construction site when creating of the in Fig. 5 in cross section Tunnel building 1 show, and to further explain the to serve the inventive method, the individual steps to create the tunnel structure 1 simultaneously and in the direction of advance V continuously done so that the actual creation of the Tunnel structure 1 done essentially without interruption can.

From Figs. 7A to 7D, which are cross sections through the tunnel construction site shown in Figs. 6A-6D along the lines A-A, B-B, C-C and D-D, the Construction of the unfinished tunnel structure different places and in different stages of completion seen.

As can be seen from Figures 6A and 7A is done directly adjacent to the rock outcrop, which the underground cavity for the tunnel structure in Vortriebsrichtung V, the application of a All-round protection from shotcrete 8 on the boundaries 4 the cavity in the area of the sides and in the ceiling area and creating the tunnel sole.

As can be seen from FIGS. 6B and 7B is at the same time in an area where the All-round security 8 and the tunnel sole already created are and which seen in the direction of advance V before Area lies, at which just the all-round security 8 is created, on both sides of the thus secured cavity from bottom to top in each case a plastic sealing strip 2 arranged at a distance from the all-round fuse and from inside the tunnel 3, each with a grid element 11 supported, which by means of tie rods 13 such is fastened in the rock, that its outer surface, on the the plastic sealing strip 2 rests substantially the desired outer contour of the future concrete inner shell 9 in this area describes. In this way, the Tunnel seal 2 created in the area of the side walls and it arises on each side between the tunnel seal 2 and the surface of the lateral all-round security an upwardly open and from inside the tunnel 3 ago accessible space 10.

As can be seen in FIGS. 6C and 7C can be, also at the same time to those described above Working, in an area, which in the direction of advance V seen before the two aforementioned Areas and in which the lateral tunnel seal 2 is already created, the lateral spaces 10 by means of a conveyor belt in each case via its upper opening filled up to the upper edge with gravel 6.

As shown in FIGS. 6D and 7D can, is, also at the same time to those described above Working in a field, which in the direction of advance V seen in front of the three previously mentioned areas is and in which the lateral spaces 10 consequently already completely filled with gravel 6, the tunnel seal 2 also created in the ceiling area by the two plastic waterproofing membranes 2 to the ceiling area be continued and there both on the All-round security glued on and glued together become. This creates a closed over the Side areas and the ceiling area extending tunnel seal Second

In another not shown here Step is at the same time, at a location in the forward direction V seen before the aforementioned areas lies and in which the tunnel seal 2 already complete is created, the inner formwork and the front formwork created for the tunnel inner shell and the inner tunnel shell then poured from concrete, with the on the Inside the lateral tunnel seal 2 arranged Grid elements 11 serve as reinforcement and completely come to lie within the concrete of the internal formwork, because of this, the plastic waterproofing membrane 2 in the area of Pages under compaction of the gravel packing 6 to the outside suppressed.

Even if in the illustrated examples always one produced by blasting outburst in rock 2 Cavity is shown, in which the boundaries 4 due The outbreak method is very irregular, it is however also provided the cavity by drilling or to create with other breakout methods, creating cavities arise with much more regular boundaries 4.

Claims (21)

Method for creating a draining tunnel structure (1) in a subterranean cavity, comprising a tunnel seal (2) extending at least along the ceiling and the sides, for sealing the tunnel interior area (3) against ingress of water, the tunnel seal (2) being at a distance from the boundary (4) of the cavity is arranged, characterized in that the area between the boundaries (4) of the cavity and the tunnel seal (2) is filled such that seen in this area in the circumferential direction zones (5a, 5b) with different pressure transmission capability and / or drainage capability are formed. A method according to claim 1, characterized in that the zones (5a, 5b) are formed by filling the area between the boundaries (4) of the cavity and the tunnel seal (2) in the circumferential direction with different materials. Method according to one of the preceding Claims that the area between the boundaries (4) the cavity and the tunnel seal (2) so filled will that the ceiling area and the side areas different zones (5a, 5b) form, and in particular, that it is filled in such a way that the side areas Zones (5a) with one opposite the ceiling area formed zone (5b) increased drainage ability. Method according to one of the preceding claims, characterized in that the region between the boundaries (4) of the cavity and the tunnel seal (2) in the lateral region with a pressure-transmitting, water-permeable and in particular unbonded bulk material (6), in particular with rock split, gravel or gravel ( 6), is filled. Method according to one of the preceding claims, characterized in that the area between the boundaries (4) of the cavity and the tunnel seal (2) in the ceiling area with a bound, pressure-transmitting filling material (7, 12) is filled, in particular with concrete (7), Mortar or a resin-bonded gravel filling (12). Method according to one of the preceding claims, characterized in that at least in the ceiling area a shotcrete layer (8) is applied to the boundaries (4) of the cavity. A method according to claim 6, characterized in that in the ceiling region, the tunnel seal (2) is arranged directly adjacent to the shotcrete layer (8) or is arranged directly adjacent to a nonwoven or a dimpled film, which or which is arranged on the shotcrete layer (8). A method according to claim 7, characterized in that both in the ceiling area and at least partially in the side areas a shotcrete layer (8) on the boundaries (4) of the cavity is applied and in the side areas between the shotcrete layer (8) and the tunnel seal (2). a layer of pressure-resistant, water-permeable filling material (6) is arranged. Method according to one of the preceding claims, characterized in that an inner shell (9) made of concrete (7) is created on the inside of the tunnel seal (2). A method according to claim 9, characterized in that the tunnel seal (2) is used as a lost external formwork when concreting the inner shell (9). Method according to one of the preceding claims, characterized by the steps: a) creating an underground cavity; b) applying a shotcrete layer (8) on the boundaries (4) of the cavity at least in the ceiling area; c) creating the tunnel seal (2) in the region of the sides such that on each side between this and the boundaries (4) of the cavity or a shotcrete layer (8) arranged thereon an upwardly open space (10) accessible from inside the tunnel is formed, d) filling the intermediate spaces (10) from the interior of the tunnel (3) via their upper openings with a filling material (6); e) completing the tunnel seal (2) by creating the tunnel seal (2) in the ceiling area directly adjacent to the shotcrete layer (8) or to a previously arranged on the shotcrete layer (8) layer of a nonwoven material or a dimpled film; and f) concreting an inner shell (9) using the tunnel seal (2) as external formwork. A method according to claim 11, characterized in that a sealing foil (2) is used as the tunnel seal (2). A method according to claim 12, characterized in that for creating the tunnel seal (2) in the region of the sides on each side a separate sealing film web (2a, 2b) with a support structure (11) is arranged, wherein the support structure (11) respectively on the Tunnel interior (3) facing side of the sealing film web (2 a, 2 b) is arranged and serves as a reinforcement during concreting of the inner shell (9). A method according to claim 13, characterized in that as supporting structures (11) curved grid elements (11) are used. Method according to one of claims 13 to 14, characterized in that the sealing film webs (2a, 2b) for completing the tunnel seal (2) in the ceiling area are connected to each other waterproof, in particular by gluing or welding. Method according to one of claims 12 to 15, characterized in that the sealing film (2a, 2b) is attached to the shotcrete layer (8), in particular by adhering to the shotcrete layer (8). Method according to one of claims 11 to 16, characterized in that the individual process steps are carried out simultaneously and continuously in the tunnel driving direction (V). Application of the method according to one of preceding claims for creating a draining Underground tunnel structure (1). Draining underground tunnel structure (1) producible by the method of any one of Claims 1 to 17. Tunnel construction (1) according to claim 19, with a concrete inner shell (9), on the outside at least in the area of the sides and the ceiling a sealing layer (2), in particular of a sealing film (2, 2a, 2b) is arranged, and wherein adjacent to the outside the sealing layer (2) in the area of the sides Layer of a pressure-resistant and water-permeable Filling material (6), in particular of rock split, gravel (6) and / or scree is arranged and in the area of Ceiling concrete (7) is arranged. Tunnel construction (1) according to claim 20, characterized in that the outside of the tunnel structure (1), which adjoins the environment, in the ceiling area and in particular in the ceiling area and in the side areas of a shotcrete layer (8) is formed.

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