DE102006054527A1 - Drainage system for removing water from roads and tunnels comprises collecting channels arranged in a drainage system and having a double drainage pipe arrangement with drainage pipes moving against each other - Google Patents

Abstract

Drainage system comprises collecting channels (13) arranged in a drainage system and having a double drainage pipe arrangement (31) with drainage pipes (20, 25) moving against each other. A transfer substance permeable for leakage water is inserted into an annular zone between the drainage pipes. The outer pipe of the double drainage pipe arrangement is formed as a receiving pipe for receiving leakage water and the inner pipe of the double drainage pipe arrangement is formed as a deviating drainage pipe for removing drainage water. An independent claim is also included for a drainage method using the above system. Preferred Features: The transfer substance is arranged in a seamless manner between the outer receiving pipe and the inner deviating drainage pipe.

Description

The The present invention relates to drainage for drainage of traffic routes and tunnels and a method for their maintenance.

Dränagekonstruktionen have always been the purpose, both during construction, as even after the completion of traffic routes and tunnels, the to absorb and drain off any seepage water entering the route. For this are the seepage pipes with perforations going through the pipe wall like holes or slots provided.

For example Tunnel structures below the natural mountain water level lie, may by the accumulating water and the dissolved accompanying substances contained therein not damaged become.

From the usual two basic Solutions need the one type of tunnel with a watertight all-round seal none additional Drainage. This species is only up to a certain amount of oppressive Mountain water, that is to a certain depth below the mountain water level, cost-effective too realize.

In contrast, is to relieve higher water pressure levels a drained Tunnel construction required. The drainage relieves the tunnel cover from costly activities to ensure the pressure tightness.

on the other hand become tunnel constructions at all provided only under traffic conditions that have a bottleneck characteristic and can not easily be bypassed otherwise.

The Construction of the tunnels and their internal structures, such as the pipelines the drainage, have to in terms of wall construction and material composition Functional safety over 50 to 100 years guarantee. Are the initial costs even high, well-designed tunnels last very long and hardly require Maintenance.

The hydrological and hydrogeological conditions of groundwater landscapes a dominant influence on the boundary conditions of the structure construction. These conditions must primarily at the river water density and the water levels equal the area around the tunneled mountains.

Around locally occurring from certain locations on water-retaining walls and tunnel walls Rust spots, corrosion damage and blockages cost-effective, easy to inspect and eliminate quickly, according to UKPS 2.350.133 proposed to pierce the affected water-retaining tunnel wall. In the hole then a sleeve was walled through the a pipe with a filter piece could be used and held at the headboard. The filter on Tube head should be made of porous, sintered polyethylene consist of both clay particles of <2 microns and silty particles over Collect 30 μm grain size to be able to. The drainage element could then via a elbow to a main drainage line be connected.

With such drainage units but can be dissolved in the water disturbing Do not catch components. Likewise, in the meantime new burgeoning seepage not immediately with newly installed drainage points be provided.

Depending on the type (open, partially filled or filled cavity or disturbed mountain range), cavity structures near the tunnel walls only had to be secured using geotextile methods of mat anchoring of geotextile composite bodies from a circularly open nonwoven and the injection of shotcrete and filled with sprayed or pumped concrete. The outer shell of the tunnel was partially reinforced by shotcrete ( CH 681475 ).

The used materials contained among the chemical constituents but also lime additives, albeit in deliberately reduced concentration.

The into the drainage pipes incoming water Can both on the way through the rock, as well as from the shotcrete components of the tunnel structure soluble Pick up ingredients.

calcium deposits in drainage systems of tunnels require considerable maintenance from the operators. Due to numerous differing water entrances, some cause drastic changes in water chemistry would be expected that the problem of fragmentation is limited to individual sections of the drainage system limited. In danger of sintering However, tunneling is often a largely continuous formation of hard to very hard deposits of varying strength.

The Deposits usually cause a narrowing of the cross sections of the pipelines in the drainage system and close single entry holes or slot areas.

To these adverse phenomena too will prevent in the DE 199 60 988 A1 proposed to make a coarser slit of the drainage pipes and to arrange a plastic molding wall together with geotextile tape system between the shotcrete of rock anchorage and the vault concrete of the inner wall and a filter gravel bed in the molding around the drainage pipe. Access to such drainage in the case of repair, however, is more difficult since this so-called elbow drainage is located below the trackbed sole and within a concrete inner wall lining. Increasing the slot width can keep the inflow open longer, but can not stop the sintering inside the tube. Condensation water from alternating climate in the tunnel on the inner walls or water from wall imperfections are not captured by this Ulmendränage and land in the other drainage lines. However, the benefits of simple tunneling are lost during maintenance and repair during tunneling.

Furthermore, from the DE 198 18 061 A1 a remediation known in which costly earthwork for excavation of the channel can be circumvented. There are only on both sides of the cleared by tracking camera disturbance two spaced shafts dug down to the channel. The two shafts close to the fault are set up as a drainage system to block the water inlet through water barriers. The two outer shafts serve the diversion of the water, so on the one hand the suction and on the other hand, the return of the water in the not rehabilitated channel area. After the elimination of the disturbance, a U-shaped flat folded protective tubular film of highly elastic polymer is first drawn into the liberated channel section with a cable and set up by compressed air. The hose forms a slippery surface on the inside, so that the tube of resin-impregnated fiberglass material, which is still to be pulled in, can form the actual "liner." The liner is then irradiated from inside with a UV light source that is passing through it and hardened after a final leak-tightness test the rehabilitated channel route is again connected to the channel section.

This pipe-in-pipe technique (double pipe) is also used in pipe rehabilitation DE 100 39 059 C1 described here, to increase the shelf life of the flexible cross-section-reducing deformed inner tube, a thermoplastic material is used, which is present substantially uncrosslinked prior to introduction into the outer tube, is coated on its inner and / or outer side with polyethylene inhibiting and only in The insert position in the outer tube is deformed back and interlinked in sections.

That will be for that Inner tube made of a water-crosslinkable, silane-containing PE-HD plastic manufactured. PE-HD is a high-density polyethylene in which the polymerization catalytically controlled, so that you can get molecules with a very low Number of side chains. The molecules are therefore very compact, have increased strength and reach Service temperatures up to 105 ° C. The degree of crosslinking of the plastic is initially at the introduction in the outer tube less than 30%. Then the plastic is acting by an inside hydrostatic pressure e.g. from steam or water to a widening driven, deformed and at 125 ° C after all fully networked. The inner tube is very tight at the end of the treatment, stable, firm and void-free on the outer tube and represents a "close-fit" solution, not even dammed anymore must become. Re-removal may therefore disadvantageously only over the elaborate burst lining done.

Finally, out of the DE 43 13 221 A1 a well construction method for underground laying of manifolds for groundwater and backwater is known in which initially driven with a drill head several slightly or heavily curved holes from a central location in soil layers under the groundwater or backwater level and then into each individual hole using a Filterstrangeinzieheinheit the actual filter strand is tightened. A strand consists of an outer cladding tube in which a granular filling, for example, made of plastic granules of certain particle size and a filter tube with openings, slots or pores encloses, can be sucked out of the pump by means of water to the sampling device.

With However, the drainage of tunnel routes is not such a method to manage something.

The object of the invention is to provide in Erddührung engineering structures such as roads and tunnels a drainage for drainage and a method for their operation, with which faster drainage and surface drainage of water, both in the horizontal and in the vertical, is made possible by the Function of the drainage of tunnel trays and walls especially of rail-bound traffic routes by seepage pipes, seepage strands, seepage slots, seepage layers under loads of accumulating, rising or descending seepage water through the various alkaline earth carbonate modifications reliable, long-term, reproducible and effective to ensure. For this purpose, the carbonate precipitation in a leaching elm and Sohlendränung under the pavement, especially in all receiving waters to influence so that the inflow to the drainage and drainage in the drainage either long be kept open at all times or inexpensively cleared at any time in the meantime, in order to prevent the build-up of leachate and to control the risks that have been triggered.

in the Case of an undesirable Blocking should be the ground installation of the drainage system in parts of a later trenchless removal and relocation accessible or against specified system parts be made interchangeable.

The solution the task takes place with a drainage for the drainage of traffic routes and tunnels, at least one Ulmendränage, a Sohlendränage, inspection shafts and further drainage pipes and a maintenance procedure.

The Drainage according to the invention is characterized in that at least two in a drainage system arranged collecting shafts with a double mandrel, the two axially fixed, but at least temporarily comprising mutually movable drainage pipes, are connected, wherein in an annular zone between the two drainage pipes at least partially a leachate permeable Transfer substance inserted is, the outer tube of the double mandrel as an earth-lying, leachate receiving absorber pipe and the inner tube of the double mandrel as Leachate taking over and discharging drainage pipe formed are.

The inventive method is characterized in that characterized in that in an already installed, stiff, perforated Aufnahdemränrohr additional flexible, also perforated Ableitdränrohr is fed, the before feeding with an uncured Foam blank is sheathed, and only after the introduction of the Ableitdränrohres in his final Position the foam blank by a thermal or optical triggered Vulcanization process (polymerization process) bloated and that after a disabling Calcitbelegung the Ableitdränrohres this from the intake ram is removed again and introduced into a new drainage pipe.

advantageous Further developments are specified in the subclaims.

In In one embodiment of the invention, the transfer substance, seamless the inner wall of the reception crane and the outer wall of the drainage pipe touching between the outer receiving pipe and the inner drainage pipe arranged.

In According to a further embodiment of the invention, the transfer substance made of foam with an open cell pore structure that has a Capillary seepage water transport allows.

In In a further embodiment of the invention, the contact surfaces of Transfer substance the pipe walls hermetically sealed, except in the area of a perforation of the Aufnahmedränrohre, where she is unmarried and for the watery Medium permeable are.

In In a further embodiment of the invention, the contact surfaces of Transfersbstbstanz unbehautet and for the leachate permeable.

In a further embodiment of the invention is between the contact surfaces of Transfer substance and the pipe walls an adhesive layer, except in the area of the perforation of the receiving edema tubes, arranged.

In Another embodiment of the invention is the transfer substance with open-cell pore structure a polymeric plastic.

In Another embodiment of the invention is the transfer substance with open-cell pore structure a ceramic solid.

In a further embodiment of the invention, the Aufnahmedränrohr and the drainage pipe an oval, a round or a circular cross-sectional area.

In A further embodiment of the invention, the Ableitdränrohr as Corrugated drainage pipe formed.

In a further embodiment of the invention fills the transfer substance only the part of the annular gap region located in the perforated area of the Aufnahmedränrohres located.

In Another embodiment of the invention is the transfer substance as a tongue between jaws on the drainage pipe or by means of adhesive tape sections attached to the same.

In Another embodiment of the invention is the annular gap region in the area of the imperforate wall zones of the Aufnahmedränrohres and the drainage pipe with a foamable, expanded, but closed-cell, flexible sealing substance filled.

In a further embodiment of the invention, the Ableitdränrohr consists a flexible plastic.

In a further embodiment of the inventions At certain intervals, the collecting shafts are arranged, into which the double Danube pipes flow downhill and downhill.

In In a further embodiment of the invention, the collecting ducts have a waterproof, corrosion-resistant coating on.

In a further embodiment of the invention, the berganseitige End of the double mandrel a barrier on and the downhill end is open.

In According to a further embodiment of the invention, the collecting ducts have an overflow, which serves to drain the leachate.

In In another embodiment of the invention, the overflow is via a Cross connection connected to a main drainage.

A advantageous development of the invention is characterized in that inspection shafts as collection chambers are formed.

A Another embodiment provides that in Ableitdränrohr a Gasdränrohr is arranged, which is connected to a gas reservoir.

In An embodiment of the method according to the invention are used for polymerization Foam blank power sources such as hot steam or hot water or wave energy forms such as infrared radiators, UV lamps or multi-band light sources over the Ableitdränrohr brought to the foam blank.

In In another embodiment, the transfer substance is outside of the receiving water pipe at the drainage pipe formed by polymerization.

In In another embodiment, the foam blank in addition to conventional Surfactants and other additives also calcium salts or calcium carbonate finely distributed added to a subsequent modification of the foam scaffold under the conditions of use of the drainage in the calcite-containing mountain water to prevent and adjust a hydrophilizing surface.

In Another embodiment is the Auspolymerisationsprozess the foam blank between the drainage and the Aufnahmedränrohr so adjusted that when contacting the inner wall of the receiving remover this is completed.

In Another embodiment is after a disabling Calcitbelegung of the drainage pipe the drainage pipe with a mobile sprayer for plastic driving, from which the inner wall of Ableitdränrohres with an adhesive and closing all slots Plastic compound is sealed and that after the polymerization this occlusive Plastic exposed the inner tube by means of evacuation pumps a vacuum is, this leads to a shrinkage of Ableitdränrohres, which then by means of a powerful pulling device from the receiving ram can be removed and then a new one with a foam blank coated discharge pipe is withdrawn.

In In another embodiment, work for maintenance the drainage in and from the collection shafts carried out from.

In a further embodiment of the method according to the invention is in the Ableitdränrohr Introduced carbon dioxide or carbon dioxide-enriched air.

The The invention will now be described with reference to embodiments shown in the drawings a drainage construction and their maintenance closer explained.

It demonstrate:

1 a section of a vault in a calcite-prone railway tunnel with drainage and media supply arrangements;

2 an inventive drainage in plan view,

3a Details of a dewatering variant with an axially symmetrical double tube variant and a polymer foam filling in the annular gap in a sectional view,

3b Details of a dewatering variant with an axially symmetrical double tube variant and a polymer foam filling in the annular gap in a perspective view,

4 technological process of vulcanization of the transfer or sealing substance in the pre-installed double pipe system,

5 a longitudinal section through a Doppeleldränrohrsystem with two collecting ducts,

6 a double-pipe variant with foam film window in the slot field area between the two pipes,

7 a technological process of Ent Taking a Calcitverstopften transfer jacket of an inner tube and

8th a longitudinal section through a Doppeleldränrohrsystem with two collecting ducts and a Gasdränrohr.

A inventive embodiment of Underground structure construction for drainage maintenance is based on the environmentally friendly structural aspects of the use of a polymerizable transfer substance in the gap of a double drainage pipe system.

The focus of the maintenance concept is on the inside free or carefully cleared, rigid, circular Aufnahmedränrohre 20 in the elm area 9 and / or the trackbed sole 5 a tunnel 1 ( 1 ) under or next to the track bed body 14 in pipeline trenches 15 ( 3a and 3b ) on one, of compactable and finally compacted soil material 16 formed pipe racks 17 with a measured gradient of about 1.8 ‰ fixed. They are thus difficult to replace in case of disturbances. These recording medals 20 have eg a dimension of DN200 and are on the dorsal tube side 22 in the pipe wall 21 between the bridges 23 with continuous perforated eg slot or circular openings 24 Mistake. The recording tapes 20 consist of a commercially available rigid PVC material (eg RAUDRIL Rail from the company REHAU) and are in a preformed tube bed until the beginning of the lowest lying dorsal row of slots 19 embedded from the compacted soil material. The slots 24 were protected by masking during the embedding work and removed to set up the operational readiness of it, whereby care is taken that the slots are kept free of grades.

Before carrying out the supplementation or completion of the intake barrels 20 through drainage pipes 25 begins the preparation process of the drainage pipe 25 on the sheathing of the whole, but at least the slotted tube wall 21 with the jetties 23 and openings 24 of the dorsal part 22 this tube. The drainage pipe 25 itself consists of a polymeric organic material whose mass is formed of distributed closed cells, ie of a flexible, highly elastic foam such as a PVC-P foam, which retains no permanent deformation after a brief deformation.

A transfer substance 30 in the ring area between the Aufnahmedränrohr 20 and the drainage pipe 25 In contrast, it is formed from an open-cell PUR foam whose capillary formation of the continuous channels is between 0.5 to 5 μm, in particular 1 μm.

In 2 is shown in a schematic plan view of the drainage according to the invention. A sole drainage 8th and an ulm drainage 9 are with collecting ducts 13 connected. cross connections 34 connect to main drainage 10 ago. The drainage according to the invention is within a tunnel 1 arranged.

4 shows schematically the connection of the ends of double dowel tubes according to the invention 31 in the collecting shafts 13 , In a collection shaft 13 open a downhill spigot 39 and an uphill spout 36 , The uphill spigot 36 has a barrier 32 on. That through the intake crane 20 about the transfer substance 30 into the drainage pipe 25 penetrating mountain and seepage water 35 flows into the collection shaft 13 and from there will have an overflow 33 dissipated.

In 8th is the drainage system according to the invention as in 4 shown in longitudinal section. Between the two collecting shafts 13 is the double mandrel 31 arranged. Above the mirror of mountain and leachate 35 in the discharge drainage pipe 25 is a gas drainage pipe 25.1 arranged. The gas drainage pipe 25.1 is via a gas valve 25.2 with a gas reservoir 25.3 connected. From this gas reservoir 25.3 is over the gas drainage pipe 25.1 Carbon dioxide or carbon dioxide-enriched air into the drainage pipe 25 introduced. The introduced carbon dioxide is in direct contact with the mountain and leachate 35 in the discharge drainage pipe 25 , By the addition of carbon dioxide or carbon dioxide-enriched air, possibly assisted by an additional cooling of the water, the Calcidausfällung is reduced or delayed by the shift caused by the carbonic acid equilibrium and thereby the formation of soluble calcium bicarbonate. The tightening of tunnel air, which can occur at train passages at the operating point, is stopped by siphoning the drainage lines, in particular the Ableitdränrohre. The advantages of supplying carbon dioxide gas is the prevention or at least the reduction of calcium carbonate deposits (sintering) in the drainage systems. There are advantageously softer and thus less expensive deposits to be removed.

Thereby there is less maintenance compared to conventional procedures, i.e. Cleaning with the risk of damaging parts of the drainage system.

The 5 and 6 show in cross section the double tube 21 with the receiving crane 20 and the discharge diverter tube arranged axially therein 25 , wherein the transfer substance 30 here as a ceramic tongue 40 or as a foam sheet 43 is trained.

7 shows in the form of a flow chart, the replacement or maintenance procedure of a diverting drainage pipe 25 after the deposition of calcite, which is the discharge of mountain and leachate 35 hinders or makes impossible. After sucking off the water, a nozzle system is retracted, with which a blow-out of the residual water takes place. Thereafter, the injection of a curable plastic over the entire inner surface of the Ableitdränrohres 25 , After curing of this plastic, an evacuation of the flexible Ableitdränrohres 25 , in whose wake the tube from the receiving ram 20 dissolves and then pulls out. Thereafter, a new flexible Ableitdränrohr with a blank of the transfer substance 30 in the receiving crane 20 be introduced.

The formation process of the thermoplastic foam for the transfer substance 30 can not be easily like the Aufnahdemränrohr 20 and the drainage pipe 25 be made in a "one-step process", since the adaptation to the annulus tolerances can not be done in advance and outside of the drainage construction so that a void-free nestling in the pipe wall 21 the Ableitdrän- as the intake 25 and 20 safely and evenly.

It are polymerizable according to the invention Starting substances used, the addition reactions with appropriate can enter additive reactants and in advanced Reactions storage-stable intermediates form. These intermediates have in the interest of the recordable procedure a liquid Consistency so that they become accessible to a spray head mixture. Furthermore, it must be on an energetically favorable condition of the final final vulcanization process be respected, who finally in the annular gap between the two tubes expires.

In order to ensure an entropy-elastic, ie rubber-elastic behavior in the service temperature range between -20 and + 60 ° C, elastomers according to DIN 7724: 1993-04 were selected which from the cold-light value T _R <0 ° C until the application of their thermal decomposition an approximately constant Shear modulus G between 10 ⁵ to 10 ⁸ Pa and beyond also still have a low tensile set.

For a education of polyurethane prepolymers become isocyanate components as the main reaction partner and long chain polyols used. For the intended soft Foam are both the cheaper polyester polyols, as also the more expensive polyether polyols can be used.

There but the resilience of the foams the base of polyether polyols is greater than that, on the base of polyester polyols, became the more resilient reaction partner given preference.

• – Katalysatoren für die Polyadditionsreaktion zur Bildung längerer linearer, gegebenenfalls verzweigter Ketten.
• – Treibmittel zum Blähen sind entweder niedrig siedende Lösungsmittel, deren Dampfdruck unter den Verarbeitungsbedingungen das Aufschäumen bewirken z.B. oder fein verteilte, feste Stoffe, die sich unter Gasabspaltung zersetzen oder chlorfreie Ersatzstoffe wie R134a von Höchst Wasser das mit Isocyanat beim PUR-Chemieprozess reagiert und dabei das blähende CO₂ freisetzt oder Fluoralkane in Kombination mit Wasser
• – Zusätze zur Erreichung der Kaltvernetzung elastomerer Zweikomponenten-Systeme, die in Form des Methylen Diphenylisocyanurats (4'4MDI) als Diphenylmethan-4,4' Diisocyanat mit gleicher Reaktionsfähigkeit beider vorhandener NCO-Gruppen die A-Komponente der beteiligten Systemkomponenten bilden.

As auxiliaries and additives for the polyurethane foam production were used:

• - Catalysts for the polyaddition reaction to form longer linear, optionally branched chains.
• - Blowing agents are either low-boiling solvents whose vapor pressure under the processing conditions cause foaming, for example, or finely divided, solid substances that decompose with elimination of gas or chlorine-free substitutes such as R134a of Höchst water that reacts with isocyanate in the PUR chemistry process and the expectorating CO ₂ releases or fluoroalkanes in combination with water
• Additives to achieve the cold crosslinking of elastomeric two-component systems which form the A component of the system components involved in the form of methylene diphenylisocyanurate (4'4MDI) as diphenylmethane-4,4'-diisocyanate with the same reactivity of both NCO groups present.

1

tunnel

2

Shotcrete

3

vaulted insulation

4

inner shell

5

Roadbed sole

6

Sickergeröll

7

Dränbetonfüllung

8th

Sohlendränage

9

Ulmendränage

10

main drainage

11

Gas supply

12

water supply

13

collecting shaft

14

Roadbed body

15

Pipeline trench

16

Flooring

17

tube trailer

18

turned Messenes gradient

19

Preformed pipe bed

20

Aufnahmedränrohr

21

pipe wall

22

dorsal tube side

23

Pipe bars in 20

24

perforation

25

Ableitdränrohr

25.1

Gasdränrohr

25.2

gas valve

25.3

gas reservoir

26

perforated pipe area

27

dorsal tube side

28

Pipe bars in 20

29

perforation

30

transfer substance

31

Doppeldränrohr

32

barrier

33

overflow

34

cross connection

35

Mountain- and leachate

36

uphill sided Support

37

gravel Pack

38

poetry

39

downhill sided Support

40

ceramic tongue

41

cleat

42

clamping edge

43

foam sheet

44

Gummed

Claims (29)

Dränage for the drainage of traffic routes and tunnels, at least one Ulmendränage ( 9 ), a sole drainage ( 8th ), Inspection shafts and further drainage pipes comprising, characterized in that at least two collecting ducts arranged in a drainage system ( 13 ) with a double mandrel ( 31 ), the two axially arranged, but at least temporarily mutually movable drainage pipes ( 20 . 25 ), wherein in an annular zone between the two drainage pipes ( 20 . 25 ) at least partially a leachate permeable transfer substance ( 30 ), wherein the outer tube of the double mandrel ( 31 ) as an adjacent, leachate receiving transducer ( 20 ) and the inner tube of the double mandrel ( 31 ) as leachate receiving and discharging Ableitdränrohr ( 25 ) are formed. Drainage according to claim 1, characterized in that the transfer substance ( 30 ), seamlessly the inner wall of the Aufnahmedränrohres ( 20 ) and the outer wall of the Ableitdränrohres ( 25 ), between the outer receiving barrier ( 20 ) and the inner drainage tube ( 25 ) is arranged. Drainage according to claim 1 or 2, characterized in that the transfer substance ( 30 ) consists of foam with an open-cell pore structure, which allows a capillary leachate transport. Drainage according to one of claims 1 to 3, characterized in that the contact surfaces of the transfer substance ( 30 ) are sealed against the tube walls, except in the area of a perforation ( 24 ) of the intake barrels ( 20 ), where they are clear and permeable to the leachate. Drainage according to one of claims 1 to 3, characterized in that the contact surfaces of the transfer substance ( 30 ) and are permeable to leachate. Drainage according to one of claims 1 to 3, characterized in that between the contact surfaces of the transfer substance ( 30 ) and the pipe walls an adhesive layer, except in the area of the perforation ( 24 ) of the intake barrels ( 20 ) is arranged. Drainage according to one of claims 1 to 6, characterized in that the transfer substance ( 30 ) with open-cell pore structure is a polymeric plastic. Drainage according to one of claims 1 to 6, characterized in that the transfer substance ( 30 ) with open-cell pore structure is a ceramic solid. Drainage according to one of claims 1 to 8, characterized in that the receiving ram ( 20 ) and the Ableitdränrohr ( 25 ) have an oval, a round or a circular cross-sectional area. Drainage according to one of claims 1 to 9, characterized in that the discharge drainage pipe ( 25 ) is designed as a Well-Ableitdränrohr. Drainage according to one of claims 1 to 10, characterized in that the transfer substance ( 30 ) fills only the part of the annular gap region located in the perforated area of the receiving ( 20 ) is located. Drainage according to one of claims 1 to 9, characterized in that the transfer substance ( 30 ) as a tongue between jaws on Ableitdränrohr ( 25 ) or by means of adhesive tape sections attached to selbigem. Drainage according to one of claims 1 to 12, characterized in that the annular gap region in the region of the unperforated wall zones of the receiving ( 20 ) and the Ableitdränrohres ( 25 ) is filled with a foamable, foamed, but closed-cell, flexible sealing substance. Drainage according to one of claims 1 to 13, characterized in that the discharge drainage pipe ( 25 ) consists of a flexible plastic. Drainage according to one of claims 1 to 14, characterized in that at certain intervals the collecting ducts ( 13 ) are arranged, in which the double Danube tubes ( 31 ) merge downhill and uphill. Drainage according to one of claims 1 to 15, characterized in that the collecting ducts ( 13 ) have a water-impermeable, corrosion-resistant coating. Drainage according to one of claims 1 to 16, characterized in that the upstream end of the double-walled pipe ( 31 ) a barrier ( 32 ) and the downhill end is open. Drainage according to one of claims 1 to 17, characterized in that the collecting ducts ( 13 ) an overflow ( 33 ) exhibit. Drainage according to one of claims 1 to 18, characterized in that the overflow ( 33 ) via a cross-connection ( 34 ) with a main drainage ( 10 ) connected is. Drainage according to one of claims 1 to 19, characterized in that inspection shafts as collecting shafts ( 13 ) are formed. Drainage according to one of claims 1 to 20, characterized in that in Ableitdränrohr ( 25 ) a gas control tube ( 25.1 ), which is connected to a gas reservoir ( 25.3 ) connected. A drainage maintenance method according to claims 1 to 21, characterized in that in an already installed, stiff, perforated receiving ( 20 ) an additional flexible, also perforated Ableitdränrohr ( 25 ) is wrapped before being pulled with an uncured foam blank, whereby only after the introduction of Ableitdränrohres ( 25 ) inflated into its final position of the foam blank by a thermally or optically triggered vulcanization process (polymerization process) and that after a hindering Calcitbelegung the Ableitdränrohres ( 25 ) this from the Aufnahmedränrohr ( 20 ) and into a new drainage 25 ) is introduced. A method according to claim 22, characterized in that for polymerizing out the foam blank energy sources such as hot steam or hot water or wave energy forms such as infrared radiators, UV lamps or multi-band light sources via the Ableitdränrohr ( 25 ) are brought to the foam blank. A method according to claim 22 or 23, characterized in that the transfer substance outside of the receiving ( 20 ) at the discharge pipe ( 25 ) is formed by polymerization. Method according to one of claims 22 to 24, characterized that the foam blank in addition to conventional surfactants and other additives also Calcium salts or calcium carbonate are added finely distributed, for a subsequent modification of the foam scaffold under the conditions of use of the drainage in the calcite-containing mountain water to prevent and adjust a hydrophilizing surface. Method according to one of claims 22 to 25, characterized that the Auspolymerisationsprozess the foam blank between the Ableitdränrohr and the receiving ram is adjusted so that when contacting the inner wall of the Aufnahdemränrohres this is completed. Method according to one of claims 22 to 26, characterized in that according to a calcite occupancy of the drainage drainage tube (FIG. 25 ) the discharge restrictor ( 25 ) is traveled with a movable spray device for plastic, from which the inner wall of Ableitdränrohres ( 25 ) is sealed with an adhesive and all slots closing plastic compound and that after the polymerization of this occlusive plastic, the inner tube is exposed by means of evacuation pumps a negative pressure, this to a shrinkage of Ableitdränrohres ( 25 ), which then by means of a powerful pulling device from the Aufnahmedränrohr ( 20 ) can be removed and then a new with a foam blank sheathed Ableitdränrohr ( 25 ) is fed. Method according to one of claims 22 to 27, characterized that works to operate the drainage in and from the collection shafts carried out become. Method according to one of claims 22 to 28, characterized in that in the Ableitdränrohr ( 25 ) Carbon dioxide or carbon dioxide-enriched air is introduced.