DE102014016290A1 - Sealing test of tunnels - Google Patents

Abstract

A device for use in sealing double-shell tunnels (10) by means of the plastic covering membrane (20) covering the structure against fluid passage from the mountain side (101) comprises a hose system (51, 52) connectable with functional aggregates for removing fluid from the building joint (15.20 ) between the geomembrane and the covered inner tunnel shell (15) towards the air side (102) and for supplying fluid for sealing purposes into the building joint. On the geomembrane several clamping points (25), each with two terminals (41, 42) for the hose system (51, 52) and directed against the geomembrane working openings (31.0, 32.0), formed to fluid for leak testing from or to the backfilling in the form of sealing material in the hose system flow out or flow. The device is integrated with the tube system in the tunnel material. In order to ensure a multiple function of the hose system before and after re-rising of the groundwater at arbitrary times, the working openings of a clamping point are each closed relative to each other. A corresponding jig (25) comprises a base pipe (31) with a holding plate (31.2) and with a main working nozzle (31.1), a double nozzle (32) with a connecting plate (32.3) and with a secondary working nozzle (32.1) and with a connecting sleeve (32.2) supporting the main working nozzle, and closing means (33; 32.3, 32.4) for sealing the two working nozzles relative to one another or against each other. Consequently, in a first operation, the building joint can be filled via a first flow path (32.0) with flowable material, which is allowed to harden, while a second flow path (31.0) is in the closed state. On the other hand, the structural joint (15.20) is then tested for penetrated water in a second operation via a second flow path (31.0) from the air side (102) forth and injected again flowable hardening material in case of leaks.

Description

1. Field of the invention

The invention relates to a device for use in sealing in particular at least partially surrounded by the earth wall or shell structures, buildings and / or parts thereof such as masonry or concrete structures as well as in their function in terms of sealing requirements similar structures in civil engineering by means of plastic Sealing membrane, which covers the building and a formed between geomembrane and covered structure or building part building joint in the direction of the air side against fluid passage from the outside, especially from the mountain side seals, the device comprises a connectable with functional units hose system for discharging fluid the structural joint and for supplying fluid for sealing purposes into the building joint, wherein at the sealing membrane on the air side thereof at least one clamping point to the hose connection directed against the sealing web working opening, designed to be and outflow of fluid, attached, attached and / or integrated into the material of the building or structural part and wherein via the working opening of the clamping point, a fluid flow for testing the building joint for leaks from this heraus- and / or for filling the building gap with flowable curing Material in this is feasible.

Furthermore, the invention relates to a device, in particular for use in conjunction with a device of the aforementioned type, said device on the sealing web on the air side as a mounting point to the hose connection with directed against the geomembrane, for the inflow and outflow of fluid suitable working opening and attaching , Fastening and / or integrating is formed on or in the material of the building or structural part and wherein via the working opening a fluid flow for testing the building joint for leaks from this out and / or for filling the building gap with flowable hardening material is in this feasible ,

Furthermore, the invention relates to a method for checking the tightness and / or backfilling in the manufacture, control and / or repair of wall or shell structures, buildings and / or parts thereof such as masonry or concrete structures as well as their function in terms of sealing requirements similar buildings in Civil engineering of the aforementioned type, wherein for filling the building joint flowable hardening material is injected into this.

Moreover, the invention relates to the use of such devices, devices and / or methods in the manufacture of clam shell tunnels.

2. State of the art

Devices, devices and methods of the type mentioned are used especially for so-called testing and injection systems when erecting in particular clam shell tunnels. For sealing tunnels against ingress of water from the mountain side, a plastic geomembrane (commonly known as KDB) is placed between the two usually made of reinforced concrete, defined as inner and outer shell and arranged shells. Through this and the concrete inner shell, since both adjacent to each other, but due to the lack of material affinity to each other separately, the building joint defined. This continuously surrounds the inner shell of the entire tunnel cross-section.

The building joint is interrupted at regular intervals (7.5 to 12.5 m) at the block joints by the joint tape. Namely, for tunnels holding pressurized water, according to German regulations, an external joint tape for partitioning in the longitudinal direction of the tunnel is to be provided at the block joints.

For details of tunneling, please refer to the Recommendations on Sealing Systems in Tunneling (EAG-EDT), Working Group AK 5.1 of the Deutsche Gesellschaft für Geotechnik e. V. (DGGT). Here you will also find further manufacturing details for the arrangement of a mountain-side protective layer between KDB seal and outer shell, to suitable mounting options for the various elements, for assembling the tunnel cross-section, for example, a sole and a vault section, to appropriate formwork arrangements and the different way when joining the building blocks.

In the present case, however, practically forms alone the building joint between the inner shell and the directly adjacent KDB seal the essential criterion for the realization of the invention, so that it does not depend on the other indicated, generally relevant in tunneling aspects and thus not discussed here in detail will need.

In the building joint, which is largely closed in the sole section as well as in the lower elms of the vault, so it rests relatively close to their base, according to existing (German) Tunneling a previously mentioned test and injection system to integrate. This is intended on the one hand to allow a review of the construction gap on freedom from water and thus control over whether the KDB has remained intact in the relevant area in the manufacture of the building. On the other hand, can be done on such a system, if necessary, a material filling in the building joint for the purpose of Nachdichtens a possibly leaky block.

Previously, no such testing and injection system available, so you had to help if necessary to create a passage through the inner shell to the outside to access the gap, so the building gap on the mountain side of the inner shell to achieve. This could for example be done by means of concrete holes of about 20 to 50 mm diameter, but was extremely time consuming and laborious because the sensitive KDB seal was not touched and thus injured.

In order to counteract this danger and to avoid any concrete drilling, a hose system with connection points has already been used in the manufacture of the inner shell. Such connection points are provided at preferably regular intervals distributed over the surface of the tunnel shell and provide the required outlets or inlets of the system up to the building gap. It sheds the hose system with its connection points with the concrete and thus allows the scheduled passage of a desired control and / or Nachdichtmediums in place.

In the professional world today there are different views on whether a backfilling of the building joints should be made before the rise of the mountain water level (water pressure) or whether such backfilling does not have to be done after checking the tightness conditions by the builder and / or the competent authorities. This often results in tedious disputes between the specialists involved in such structures, which can lead to a not inconsiderable delay in the handling of tunnel structures.

3. Task

The invention is therefore based on the object, in eliminating the stated disadvantages of the prior art device, procedural and device measures suggest that ensure a multiple function of the hose system. In particular, it is an object of the invention to allow the construction company / the contractor to fill the building gap before the groundwater re-rises, and at the same time to ensure that the client / contractor has the possibility of independently checking the tightness conditions in the building joint, ie As a rule, to ensure their freedom from water and, if appropriate, their (re) filling. In addition, a further object of the invention is to ensure that a functionally correct multiple use of a connection point for independently and successively performed at arbitrary time intervals operations is possible.

4. Inventive solution, achievable advantages and definitions of terms

This object is achieved in a device of the type described above in that each clamping point more than one work opening is provided, that each mounting point and each work opening is connected to a hose, the fluid to the mounting point out and / or away, and in that at least one of the work openings is closable relative to the other.

In this way, it is readily possible that the contractor before the transfer or acceptance of the building by the client and / or appropriate authorities, the building gap filled in the desired degree and still thereafter on the part of the client, the necessary steps of the final tightness test and possibly - d. H. depending on the result of the test - required Nachverfüllen can be made.

In a device for use in sealing at least partially surrounded by the earth wall or shell structures, buildings and / or parts thereof such as masonry or concrete structures and in their function with respect to leakage requirements of similar structures in civil engineering by means of KDB, which covers the building and a formed between geomembrane and covered structure or building part building joint towards the air side against fluid passage from the outside, especially from the mountain side seals, as they can be used in particular in connection with a device described above, wherein the device on the geomembrane is formed on the air side as a mounting point to the hose connection directed against the sealing sheet, for the inflow and outflow of fluid suitable working opening and attaching, attaching and / or integrating on or in the material of the building or building part and wherein the Arb Opening a fluid flow for testing the building joint for tightness from this out- and / or backfilling the building joint with flowable hardening material is in this feasible, the above object is achieved in that the device is a base pipe part with a holding plate and a main Work socket, a double spigot part with a connection plate and, borne by the latter, with a secondary working spigot and with a connecting spigot which supports the main spigot, and closing means to main and / or auxiliary spigot relative to each other and / or sealing against each other.

Thus, a constructive as well as manufacturing technically simple device is provided, which also leads to a significant reduction in the number of Aufspannstellen for the testing and injection system. In addition, it is possible to use the auxiliary work nozzle by flushing after previous use multiple times.

In a method for checking the tightness and / or backfilling in the manufacture, control and / or repair of particular at least partially surrounded by the earth wall or shell structures, buildings and / or parts thereof such as masonry or concrete structures and in their function in terms of tightness requirements more similar Structures in civil engineering, in whose creation a lowering of the groundwater level and by means of a building covering KDB to form a between geomembrane and covered structure or building part structural gap toward the air side against fluid passage from the outside, in particular of are sealed to the mountain side, wherein for filling the building gap flowable hardening material is injected into this, is proposed to solve the problem that in a first operation, the building joint via a first flow path of the on is filled with the flowable material and allowed to cure, with a second flow path of the clamping point is in the closed state, and that after completion of the first operation in a second operation via a second flow path from the air side of the geomembrane ago the building fugue penetrated Water is tested as well as in the detection of leaks further flowable curing material is injected.

This clear delineation of the two process options among one another enables experts to largely avoid disputes about the when and where or the steps to be performed by whom. It may also take account of different circumstances, positions and requirements in tunneling legislation in other jurisdictions, in other words at least bring it closer to a global operational capability of the relevant methods.

In this context, it should be noted that, in a further development of the method concept, the filling of the building joint with flowable hardening material via the first flow path before the groundwater re-rise, ie. H. this takes place between the first and second work process. It is also to be considered in pursuit of this idea as particularly useful if the closed before the start of the first operation second flow path after completion of the first operation and before the start of the second operation is opened. In this case, in order to be able to use means which are present in any case in a particularly advantageous manner, the opening of the second flow path can be effected by means of pressure fluid or mechanically.

Precisely these measures contribute to the fact that during the construction of the tunnel test and Nachverfüll steps can be carried out quickly by the relevant and responsible partners in the construction without special consideration of longer waiting times on the part of certain companies, site managers, experts, etc.

Another, essential advantage of the invention can be seen in the fact that in the course of the production of a tunnel construction a plurality over the length of the building and the scope preferably arranged regularly devices or devices can be used, of which successively each only one part needs to be used for injecting and the others remain usable for venting or draining the building joint.

For the purposes of the invention, a KDB is a film web which covers the structure between the inner shell and the outer shell over the entire circumference, whereby web parts of up to several meters in width are connected to one another continuously along their overlapping edges, as a rule adhesively bonded or welded ,

For the purposes of the invention, a building joint is the area between a concrete shell wall and the KDB covering it, which is formed as a result of the material-specific separation between the shell concrete and the plastic film between the two. Air, water or filling material, ie a fluid in the sense of the invention, can be located in this area. Filling material according to the invention is flowable, in the building joint hardening material that seals any leaks in the KDB and / or in the concrete.

Air side in the sense of the invention is, with respect to the affected layer, shell or track of the tunnel, the side facing the interior of the same, whereas the mountain side is the opposite side.

A hose system in the context of the invention is for supplying or discharging fluid to the connection point or away from leading system of hoses, nozzles, pipes or other suitable lines, which is equipped with the necessary fittings, which in the relevant field, inter alia Switching on and off, measuring or other physical or procedural operations usually find use.

A mounting point in the context of the invention is the location, based on the tunnel system to which the hose system is connected to the building joint. Thus, the mounting point in the sense of the invention is at the same time the spatial assignment to the tunnel system for the attachment of the device according to the invention.

A work opening in the context of the invention is the point, is introduced via the fluid, usually water, from the building gap in the tube system or via the fluid, usually flowable filling material is introduced into the building joint.

A test and injection system according to the invention is essentially determined and / or formed by the mounting point, the hose system (with fittings, etc.), the working opening (s) and the building joint.

5. Further developments of the invention

As appropriate both in terms of additional design effort for device or device on the one hand and the procedural processing on the other hand, it can be provided that each clamping point has two work openings.

In order to separate the flow paths particularly easy for their use at different times against each other or to separate them easily functionally separated, can be offset in further development of the invention, the levels of the working openings of a mounting point with respect to their distance from the plastic geomembrane.

For assembly purposes as well as for the production, prefabrication, warehousing and transport to the site and for space-saving storage there even a minimum of components, the invention also proposes that the work openings sit on a trained for attachment to the plastic geomembrane carrier. In this case, the carrier may preferably be a planar element, preferably made of flexible, matched to the plastic geomembrane material. Advantageously, just at offset offset levels of the working openings of these only one pass through the carrier and end at the bottom thereof.

In order to ensure a flawless working of the device in every respect, the work openings can be closed against fluid entry from the outside. It is advantageous, especially in view of a proper function over a long period of time when such closable work openings are formed with openable closures.

In an advantageous embodiment of the invention, the device may comprise a common hose holder for the working openings of a mounting point by means of connecting pieces. This avoids a doubling of additional or auxiliary means such as clamps, holders, mounting points od. When increasing the number of work openings by almost twice.

In order to provide in the invention, in particular for a functional and precise work with the device according to the invention, in the latter one of the working openings of a clamping point as a primary opening alone to fill with flowable curing material and a second of the working openings of a clamping point as a secondary opening for in particular after Wiederanstieg of Groundwater to be examined before testing the structure for leaks against the mountainside and / or filling the building gap with flowable curing material in the hose system functionally connectable.

In this case, preferably, in order to rule out human errors in particular by overlooking, the primary opening can be formed as automatically closable after the passage of fluid. Such a closeability can be achieved particularly easily and without major expense if, depending on the purpose and circumstances, as a suitable means for closing capability frictional bias, O-rings, welding or gluing are provided.

In order to ensure the opening in each case at the exact desired time, the secondary opening can be formed with an actively openable closure. If you want to prevent too rapid resealing, the actively openable closure of the secondary opening can be advantageously formed with means for keeping open.

In structurally appropriate and cost-acceptable development of the invention, the actively openable closure of the secondary opening od as a plug, pull plug, screw cap, membrane od. Like. Be formed.

If you want the design of the device in a particularly simple, expedient manner constructive and logically realize the work openings in the main and in the secondary nozzle and can be formed braced against each other in development of the inventive idea, base nozzle part and double nozzle part. It is advantageous if base-part and double-piece part are formed by means of holding plate and connecting plate clamped against each other.

Particularly in terms of simplified prefabrication, provision and stockpiling of components, the space-saving packaging the same for transport from the warehouse to the assembly site and the overall handling and with a special view of the bracing and sealing options of the device is provided in a further development of the invention that retaining plate and connecting plate are formed with congruent outer contour, particularly preferably as concentric circular discs. In this case, both can be conveniently mounted by means of recorded in the connecting piece main-working nozzle.

In order to achieve the mentioned tension of the two plates in a meaningful way, the holding plate can be concavely formed against the connecting plate in a preferred development of the invention, while on the other hand, the connecting plate along its circumference may be formed with a directed against the holding plate web. This web should extend at least partially over the perimeter. Through him can be achieved in addition to the required system spring force a particularly simple sealing effect in relation to the overall function of the two relatively closable openings of the device.

In order to ensure the relative sealing effect in structurally simple manner already in the way of prefabrication, but also to allow rapid opening in the case, in a further development of the device, the main working nozzle a relatively movably mounted to him, the secondary work opening optionally occlusive mechanical closure take up. Depending on the purpose and manageability, this mechanical closure can be designed as a stopper, pull stopper, screw cap, membrane or the like. It is favorable for the structural design of such a plug designed as mechanical closure, especially with regard to a simple structure and the subsequent work with it, if he in a slotted guide on the inner wall of the main working nozzle movable and easily lockable / is provided lockable. Therefore, it is also advantageous if this mechanical closure is to be locked under displacement in the axial direction of the main working nozzle and twisting therein by means of undercut provided with functional elements.

In a further development of the method according to the invention, the filling of the building gap with flowable hardening material via the first flow path before triggering the groundwater recovery can be done, so be promptly initiated by the construction company, so that a clear demarcation between the participating in construction and for a clean, flawless execution draws responsible parties. For this purpose, it is also preferred if the first flow path closes automatically and can be flushed freewheeling functionally suitable for further injection processes. However, in view of the present pressure conditions with respect to the backfill material much lower working pressure of the concrete sludge just as well possible that the first flow path after completion of the first operation remains in the given state, ie open. On the other hand, taking into account the given pressure conditions, the second flow path must remain closed during the filling with flowable hardening material via the first flow path, namely before the groundwater pressure rises again.

Particularly advantageous is the use of a device and / or a device and / or a method with the described features in the production of double-shell, all sealed with plastic waterproofing tunnel structures. In this case, the installation of device or device in the course of creating the concrete inner shell of the tunnel in connection with the attachment of the KDB, actually done immediately after their closing.

Also advantageous may be the use of a device and / or a device and / or a method with the described features in the production of double-shell, sealed all around with plastic waterproofing tunnel structures in which in the course of the production of the tunnel construction a plurality of the length of the building and the scope preferably regularly distributed devices or devices is used, of which successively only one part is used for injecting, while the remaining facilities or devices for venting or draining the building fugue remain usable.

6. Brief description of the drawings

Other ways of realizing the invention and details thereof will become apparent from the following description of the purely exemplary embodiments shown in the drawings. In the drawings shows:

1 a cross section through a tunnel to be created using a device according to the invention and with a method according to the invention with a clam shell, here constructed of a lower sole portion and an upper arch portion tunnel wall;

2 a longitudinal section of a part of in 1 shown tunnels, here at least partially showing three tunnel blocks;

3 the detail III of 1 as a scale enlarged cross-section of in 1 indicated clamping point with a device according to the invention in use;

4 a schematic representation of in 3 shown device in exploded view;

5 a concretized and completed training form (detail) of a device according to the invention 4 in a perspective, partially sectioned view in the installed state with omitted material of the tunnel wall;

6 a sectional view of the device according to the invention similar to 3 when filling the building gap before re-rising the groundwater level;

7 one of the 6 corresponding representation of the device according to the invention in the active opening of the closure of the secondary opening after reestablishment of the groundwater level;

8th one of the 7 corresponding representation of the device according to the invention with actively opened closure of the secondary opening and at after re-rising of the groundwater level to the air side flowing water due to leakage in the KDB; and

9 a the 7 and 8th corresponding representation of the device according to the invention with actively opened closure of the secondary opening and after re-rising of the groundwater level from the air side inflow ing backfill material for re-sealing the building joint.

7. Description of the embodiments.

7.1. Structural construction

A in the present concrete embodiment in 1 and 2 shown tunnel 10 from the soil or mountains 100 surrounded, has a clam shell tunnel wall. This essentially comprises a tunnel inner shell 15 and a tunnel outer shell 16 , The tunnel inner shell 15 is in the tunnel longitudinal direction in a plurality of tunnel blocks determining the total length according to their individual dimensions 11 . 12 . 13 divided up. The individual tunnel blocks are by block joints 14 separated from each other.

The airside area of the tunnel, so its inside, is with 102 while outside around the tunnel is a mountainous area 101 lies. The cross section of the tunnel is configured in two parts in the concrete example, namely consisting of sole section 15.1 and vault section 15.2 ,

Between the tunnel shells 15 . 16 there is a tunnel seal 20 in the form of a plastic sealing membrane / KDB and a protective layer arranged on the mountain side 21 , The latter is usually made of geotextile material. The block joints 14 are by means of attached to the KDB, usually so welded block joint tapes 22 bridged. Between tunnel inner shell 15 and KDB 20 is a building joint 15:20 formed in the case of leaks in the KDB waterproofing water from the mountain side 101 takes her (here in each case between the block joint bands) leads.

This building joint 15:20 is in fact due to the fact that the concrete of the tunnel inner shell and the material of about 2 to 4 mm thick KDB no connection. Rather, these substances are adjacent due to lack of affinity adjacent to each other separately and form between them in its strength not exactly defined cavity in which, especially when pressurized liquid media such as fluids, gas, liquids, etc. can flow. This cavity, referred to as a building joint, can be monitored and checked with regard to the physical parameters such as pressure conditions, moisture, water supply, etc., and above all provides the correct location to monitor whether the KDB could possibly have become leaky in the course of use.

About the circumference of the tunnel is, preferably at regular intervals, a plurality of mounting points 25 whose structures and structural details are explained in more detail below and which are part of a testing and injection system.

To show 3 and 4 the latter in detailed exploded view, a single clamping point 25 , which reproduces a device according to the invention and thus forms part of the device according to the invention.

This essential part of the chuck forming device 25 includes a carrier 30 with which they help at attachment points 20:30 by welding, gluing or stapling to the KDB 20 is attached. As a rule, sufficient for a secure fit such a selective attachment of the wearer 30 at the KDB 20 , since the device, as recognizable, total in the wall of the tunnel 10 is embedded.

On the carrier 30 sit a base neck part 31 Having a home work neck 31.1 with a (based on the later sequence of functions) secondary opening 31.0 as a work opening and, surrounding this, a holding plate 31.2 includes, and a double neck part 32 that with a connecting piece 32.2 , a secondary work socket 32.1 and a connection plate 32.3 is trained.

The connection piece 32.2 is configured to have the main work port 31.1 of the base piece part 31 stock picks up. On the other hand, the secondary working nozzle defines 32.1 a (also related to the later sequence of functions) primary opening 32.0 , Main and secondary service socket 31.1 respectively. 32.1 are formed, the ends of hoses 51 and 52 of the testing and injection system. The secondary opening 31.0 as a work opening in the main work socket 31.1 takes a (mechanical) closure 33 on. This is done by means of a type of tongue and groove link guide 31.3 respectively. 33.3 on the inside of the main working nozzle 31.1 or the outside of the closure 33 guided. He can by a known to the expert, for. B. elastically operated undercut easily be releasably locked in its open position. Also, within the passage in the main nozzle 31.1 an attack 31.4 be provided, with the insertion depth of both the hose end 51 as well as the opposite insertable closure 33 can be limited.

The holding plate 31.2 lies with its top from below against the bottom 30.31 of the carrier 30 on, the connection plate 32.3 whereas with their bottom against the top 30.32 of the carrier 30 , The two plates 31.2 respectively. 32.3 are concave to each other in opposite directions so curved that they against each other or against the trapped between them carrier 30 can be tightened. This is not only a tight fit on the carrier 30 reach, but at the same time in a simple way closing the primary opening 32.0 accomplish.

To the necessary tightness in the opening area of the primary opening 32.0 Make sure the bottom is the connection plate 32.3 with a circumferential bridge 32.4 or edge formed.

In the more detailed form of education of 5 you recognize in addition to 3 the above only indicated construction of the main working nozzle 31.1 arranged slotted guide 31.3 . 33.3 with an undercut 33.4 as well as two connecting pieces 41 . 42 for a tight fit of the ends of the hoses 51 respectively. 52 ,

7.2 Function and operation

The operation of the system according to the invention will now be described with reference to the functional representations of 6 to 9 explains; compared to the previous ones 3 to 5 in particular, the detailed structure-detailed representations in these figures are in 6 to 9 above all the flows (A, B, C, D) of the various fluids as well as the occurring during the various operations layer and layer changes reproduced. It should be expressly understood that had to be worked in these figures with different degrees of scale differing in the reproduction of building / tunnel, device and the area of the building gap, for example, the building fugue and deposited in this backfill A ', D' halfway understandable to be able to show.

So show the 6 to 9 with dotted lines 15:20 ' How to enlarge and enlarge the building joint 15:20 as a kind of gap or separation zone between the concrete inner shell 15 and the KDB seal 20 and as outlined above in the section "Structural design". This area 15:20 ' has adjacent layers of material in the building, which in turn are juxtaposed and partially adjacent to each other, partly separated from each other, but which, because of their different material properties, do not make any connection with each other. So he puts a variable, through the concrete surface of the tunnel shell 15 certain "inner surface" of simplified as a cylinder (to be precise: "hollow cylinder" with tunnel contours and wall thickness of the building joint) to be viewed building joint 15:20 represents.

In the course of backfilling the building joint 15:20 gets over the primary opening 32.0 according to stream A (dash-dotted) flowable hardening injection material introduced under pressure. This pressure becomes the carrier 30 from the concave connection plate 32.3 in the direction of the mountain side, ie in the direction of the KDB 20 , pushed away, so that the backfill material can be distributed in the building joint. Any leaks in the KDB are sealed in this way, ie sealed. Such deposited material is in 7 to 9 , recognizable as A '.

During this operation is the secondary opening 31.0 , ie the working opening of the main working nozzle, closed by the shutter 33 the main working neck 31.1 closes. If the influx A is prevented, then the auxiliary work nozzle closes 32.1 by reinvesting the bridge 32.4 against the surface (= inside) of the wearer 30 (as best of all from a common consideration of 3 . 4 and 5 with the relevant reference numerals).

To 7 that in simplistic representation only in the left part during the process of 6 Deposited backfill material (injection material, fill mass) A ', is by means of a water flow B (pressurized fluid, which could even be air), the shutter 33 open. As a result of the pressure of B give the attachment points (point stitching) of the carrier 30 at the KDB a sufficient space for unimpeded flow of the pressurized fluid B free. This can be distributed according to the dot-dash line.

The joint area on the support 30 is already sealed, ie here are concrete and sealing material of KDB (in the form of the inner surface of the carrier 30 ) sealingly against each other, while the conditions in the gap region 15:20 not necessarily have to be uniformly sealing / are what z. B. depending on the stretching or folding, caused by scratching or otherwise uneven position of the KDB.

The closure 33 locks automatically in the open position, leaving the secondary opening 31.0 now instead of by the restoring force of the connecting plate 32.3 or holding plate 31.2 again closed primary opening 32.0 can work.

After switching off the current B ( 7 ) the device now works ( 8th ) as a test device, by after re-rise of the water level in the building joint due to leaks in the KDB penetrated water to the air side 102 of the tunnel (stream C).

If such leaks are detected, then as well as this 9 shows, analogous to 6 be filled by means of a filling material flow D flowing in under pressure. Such backfill material, here indicated by cuboid-dotted arrangement D ', superimposed in addition to already existing sealant A' in the building joint 15:20 from.

Regarding the attachment points (dot stitching) of the wearer 30 at the KDB 20 applies the previously stated: The given pressure conditions are suitable to always release a sufficient gap for unimpeded flow of the respective fluid (D) or to leave open (C).

8. Compendium of advantages over the prior art

Significant advantages of the invention are summarized here again summarized:
Instead of a single acting injection system with prior testing function, a double injection system with prior testing function is provided. When using the primary opening, ie the first injection or secondary working nozzle, the test function is maintained by a second injection nozzle (secondary opening in the main nozzle).

The first injection nozzle (= secondary nozzle) is connected to the KDB piece (carrier 30 ) pressed by shaping "plate" after the first use flushed. This results in the possibility of multiple use (multiple injectable).

The injection system can be quickly and easily pre-assembled due to plug-in connection of base spigot and double spigot part (counterpart). There are no holes, z. B. for a backup pin; Gluing or welding of individual components required.

After installation of the sealing plug (cap 33 ) is the injection system through the plug-clamp connection and the concomitant tension of the curved plate-shaped parts against the KDB piece without the need for further action against the ingress of fluids from the outside. The edges of the carrier 30 do not have to be sealed with tape.

The shutter opened for the examination of the building joint 33 remains open by snapping even at high water pressure from the outside. There is no risk of accidental closing, as may be the case, for example, in the usual edge bonding of the KDB piece (undesired valve function by re-on-the-seal press by inflowing water). By eliminating any edge bonding of the KDB piece, the installation cost is less than before, although twice as many ways exist to inject into the building joint.

The closure plug may be formed to be hydraulically, pneumatically or mechanically opened from the inside. Above all, the latter option requires no external entry of water or air in the building joint to be tested. This represents a considerable advantage for the client, because he can open the lock without the intervention of third parties for an examination of the building joint (previously had to be commissioned for the examination always an injection company to burst the edge bonding with water). reference numeral 10 tunnel 11 . 12 . 13 tunnel block 14 block joint 15 inner shell 15.1 Inner shell, sole section 15.2 Inner shell, vault section 15:12 Working joint between sole and vault 15:20 Building joint between inner shell ( 15 ) and KDB ( 20 ) 15:20 ' Outer surface Inner shell / interface to the building joint 16 outer shell 20 KDB-sealing 20:30 Junction KDB ( 20 ) and supports ( 30 ) 21 protective layer 22 Block joint tape 25 Clamp, device 30 carrier 30.31 Carrier base 30.32 Carrier top 31 Base socket part 31.0 Secondary opening (general opening) 31.1 Main work piece 31.2 Retaining plate 31.3 Slotted guide (inner wall of main work socket) 31.4 Stop (for hose ( 51 ) and closure ( 33 )) 32 Double socket part 32.0 Primary opening (general opening) 32.1 In addition to working nozzle 32.2 connecting pieces 32.3 connecting plate 32.4 web 33 shutter 33.3 Slotted guide (outer wall closure) 33.4 undercut 41 Connection / fitting for hose of main working socket 42 Connection / fitting for auxiliary working hose 51 Hose for main service socket 52 Hose for auxiliary work socket 100 mountains 101 mountainside 102 airside

Claims (38)

Device for use in sealing, in particular at least partially, of the soil ( 100 ) surrounded wall or shell structures, buildings and / or parts thereof such as masonry or concrete structures as well as in their function in terms of tightness requirements similar structures ( 10 ; 11 . 12 . 13 ) in civil engineering and civil engineering by means of plastic geomembrane ( 20 ), which covers the building and a building joint formed between geomembrane and covered structure or building part ( 15:20 ) towards the air side ( 102 ) against fluid passage from the outside or mountain side ( 101 ) seals, wherein the device is a connectable with functional aggregates hose system ( 51 . 52 ) for removing fluid from the building joint ( 15:20 ) and for supplying fluid for sealing purposes into the building joint, wherein at the geomembrane ( 20 ) on the air side ( 102 ) at least one clamping point ( 25 ) with connection ( 41 . 42 ) for the hose system ( 51 . 52 ) and with against the geomembrane ( 20 ) directed work opening ( 31.0 . 32.0 ), designed for the inflow and outflow of fluid from or into the hose system, mounted, attached and / or in the material of building or building part ( 10 ; 11 . 12 . 13 ) and wherein via the working opening of the clamping point and the hose system, a fluid flow for checking the tightness conditions in the building joint ( 15:20 ) Is in feasible from this herausleitbar and / or for filling with flowable Bauwerksfuge the hardening material in these, characterized in that each Aufspannstelle ( 25 ) more than one work opening ( 31.0 . 32.0 ), that each mounting point ( 25 ) and each work opening ( 31.0 . 32.0 ) each with a hose ( 51 . 52 ), which leads fluid to and / or away from the mounting point, and that at least one of the working openings ( 31.0 respectively. 32.0 ) relative to the other ( 32.0 respectively. 31.0 ) is closable. Device according to claim 1, characterized in that each clamping point ( 25 ) two work openings ( 31.0 . 32.0 ) having. Device according to claim 1 or 2, characterized in that the levels of the working openings ( 31.0 . 32.0 ) a clamping point ( 25 ) in relation to their distance to the plastic geomembrane ( 20 ) are offset. Device according to one of claims 1 to 3, characterized in that the working openings ( 31.0 . 32.0 ) at a for attachment to the plastic geomembrane ( 20 ) trained carriers ( 30 ) to sit. Device according to claim 4, characterized in that the carrier ( 30 ) a planar element, preferably made of flexible, on the plastic geomembrane ( 20 ) matched material. Device according to claim 5, characterized in that of the working openings only one ( 31.0 ) the carrier ( 30 ) and on its underside ( 30.31 ) ends. Device according to one of claims 1 to 6, characterized in that the working openings ( 31.0 . 32.0 ) are closed against fluid entry from the outside. Device according to one of claims 1 to 7, characterized in that lockable working openings ( 31.0 . 32.0 ) with openable closures ( 33 ) are formed. Device according to one of claims 1 to 8, characterized in that it comprises a common hose holder for the working openings ( 31.0 . 32.0 ) comprises a clamping point by means of connecting pieces. Device according to one of claims 1 to 9, characterized in that one of the working openings ( 31.0 . 32.0 ) a clamping point ( 25 ) as primary opening ( 32.0 ) solely for filling with flowable hardening material and a second of the working openings of a clamping point as a secondary opening ( 31.0 ) for testing the structure ( 10 ) on tightness against the mountain side ( 101 ) and / or filling the building joint ( 15:20 ) with flowable hardening material in the hose system ( 51 . 52 ) is functionally connectable. Device according to claim 10, characterized in that the primary opening ( 32.0 ) is designed as automatically closed after fluid passage. Device according to one of claims 7, 8 and 11, characterized in that there are provided as closable means suitable non-positive bias, O-rings, welding or gluing. Device according to claim 10, characterized in that the secondary opening ( 31.0 ) with an actively openable closure ( 33 ) is trained. Device according to claim 13, characterized in that the actively openable closure ( 33 ) of the secondary opening ( 31.0 ) is formed with means for keeping open. Device according to claim 13 or 14, characterized in that the actively openable closure ( 33 ) of the secondary opening ( 31.0 ) as a plug, pull plug, screw cap, membrane od. Like. Is formed. Apparatus for use in sealing at least partially wall or shell structures surrounded by soil, buildings and / or parts thereof, such as masonry or concrete structures, as well as in their function with regard to sealing requirements of similar structures ( 10 ; 11 . 12 . 13 ) in civil engineering and civil engineering by means of plastic geomembrane ( 20 ), which covers the building and a building joint formed between geomembrane and covered structure or building part ( 15:20 ) towards the air side ( 102 ) against fluid passage from the outside, in particular from the mountain side ( 101 ) seals, in particular for use in connection with a device according to one of claims 1 to 15, wherein the device on the sealing web on the air side as a clamping point ( 25 ) to the hose connection ( 41 . 42 ; 51 . 52 ) with directed against the geomembrane, for the inflow and outflow of fluid suitable working opening and for attaching, attaching and / or integrating on or in the material of the building or structural part is formed and wherein the work opening ( 31.0 . 32.0 ) a fluid flow for testing the structural gap for impermeability from this heraus- and / or for filling the building gap with flowable hardening material into this is feasible, characterized in that the device ( 25 ) a base neck part ( 31 ) with a retaining plate ( 31.2 ) and with a main working nozzle ( 31.1 ); a double neck part ( 32 ) with a connection plate ( 32.3 ) and, borne by the latter, with a secondary working nozzle ( 32.1 ) and with a connecting piece ( 32.2 ), which is the main working nozzle ( 31.1 ) stores; and closing means ( 33 ; 32.3 . 32.4 ) to main and / or secondary service nozzles ( 31.1 respectively. 32.1 ) to seal relative to each other and / or against each other sealingly; includes. Apparatus according to claim 16, characterized in that the base neck part ( 31 ) and double neck part ( 32 ) are formed braced against each other. Apparatus according to claim 16 or 17, characterized in that the base neck part ( 31 ) and double neck part ( 32 ) by means of retaining plate ( 31.2 ) and connecting plate ( 32.3 ) are formed braced against each other. Device according to one of claims 16 to 18, characterized in that retaining plate ( 31.2 ) and connecting plate ( 32.3 ) are formed with congruent outer contour. Device according to one of claims 16 to 19, characterized in that retaining plate ( 31.2 ) and connecting plate ( 32.3 ) are formed as concentric circular disks. Device according to one of claims 16 to 20, characterized in that retaining plate ( 31.2 ) and connecting plate ( 32.3 ) by means of in the connecting piece ( 32.2 ) received main-Arbeitsstutzen ( 31.1 ) are stored. Device according to one of claims 16 to 21, characterized in that the retaining plate ( 31.2 ) against the connection plate ( 32.3 ) is concavely curved. Device according to one of claims 16 to 22, characterized in that the connecting plate ( 32.3 ) along its circumference with a against the retaining plate ( 31.2 ) directed web ( 32.4 ) is trained. Device according to claim 23, characterized in that the web ( 32.4 ) extends at least partially over the circumferential length. Device according to one of claims 16 to 24, characterized in that the main working nozzle ( 31.1 ) a relative to him movably mounted, the secondary work opening ( 31.0 ) optionally occlusive mechanical closure ( 33 ). Device according to Claim 25, characterized in that the mechanical closure ( 33 ) as a plug, pull plug, screw cap, membrane od. Like. Is formed. Apparatus according to claim 25, characterized in that the stopper formed as mechanical closure ( 33 ) in a slotted guide ( 33.3 ) on the inner wall of the main working nozzle ( 31.1 ) is movable and lockable. Device according to claim 27, characterized in that the mechanical closure ( 33 ) under displacement in the axial direction of the main working nozzle ( 31.1 ) and under twisting in that by means of undercut ( 33.4 ) is lockable. A method for checking the tightness and / or filling in the manufacture, control and / or repair of particular at least partially surrounded by the earth wall or shell structures, buildings and / or parts thereof such as masonry or concrete structures as well as in their function in terms of tightness requirements similar structures in civil engineering, in whose creation a lowering of the groundwater level takes place and by means of the building covering plastic geomembrane to form a between geomembrane and covered structure or building part structural gap in the direction of the air side against fluid passage from the outside, in particular be sealed from the mountain side, being filled to fill the building gap flowable hardening material via a mounting point in the building joint, characterized in that - in a first operation (A) the building joint ( 15:20 ) via a first flow path ( 32.0 ) of the clamping point ( 25 ) is filled with the flowable material (A ') and allowed to cure, - wherein a second flow path ( 31.0 ) of the clamping point ( 25 ) is in the closed state, and that - after completion of the first operation in a second operation (B, C, D) via a second flow path ( 31.0 ) from the air side ( 102 ) the geomembrane ( 20 ) ago the building joint ( 15:20 ) for penetrated water (C) and - in the case of leak detection, further flowable hardening material (D ') is injected (D). A method according to claim 29, characterized in that between the first and second operation, the triggering of the groundwater recovery occurs. Method according to claim 29 or 30, characterized in that the second flow path closed before the start of the first operation (A) ( 31.0 ) is opened (B) after completion of the first work process (A) and before the start of the second work process (C, D). A method according to claim 31, characterized in that the opening (B) of the second flow path ( 31.0 ) takes place by means of pressurized fluid. A method according to claim 31, characterized in that the opening (B) of the second flow path ( 31.0 ) mechanically. Method according to one of claims 29 to 33, characterized in that the first flow path ( 32.0 ) remains in the given state after completion of the first work process (A). Method according to one of claims 29 to 34, characterized in that prior to filling with flowable hardening material (A ') via the first flow path ( 32.0 ) the second flow path ( 31.0 ) is closed easily reopenable. Method according to one of claims 29 to 35, characterized in that the first flow path ( 32.0 ) Automatically closes and is free to rinse freely reusable for further injection operations. Use of a device according to one of Claims 1 to 15 and / or of a device according to one of Claims 16 to 28 and / or of a method according to one of Claims 29 to 36 in the production of double-shell tunnels sealed all around with plastic sealing strip. Use of a device according to one of claims 1 to 15 and / or a device according to any one of claims 16 to 28 and / or a method according to any one of claims 29 to 35 in the production of double-shell, all-sealed with plastic sealing membrane tunnels, wherein in the course of manufacture the tunnel structure a plurality over the length of the building and the circumference of preferably regularly arranged devices or devices is used, of which successively only one part is used for injecting and the remaining facilities or devices for venting or draining the building fugue remain usable.

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