WO1997020164A1

WO1997020164A1 - Method and device for renovating underground pipelines, and use

Info

Publication number: WO1997020164A1
Application number: PCT/DE1996/002255
Authority: WO
Inventors: Werner Gebauer; Hans-Joachim SCHLÖSSER
Original assignee: Werner Gebauer; Schloesser Hans Joachim
Priority date: 1995-11-28
Filing date: 1996-11-23
Publication date: 1997-06-05
Also published as: DE19544191C1; AU1029597A

Abstract

The invention relates to a method for renovating underground pipelines, in particular in the sector of waste disposal sites, roads and sewage. A starting and/or target opening (2, 3) is at least partially constructed, pipelines (1) to be renovated preset at least one path (8) for laying new pipelines (9) and one carrier system joined to the new pipelines (9) is introduced into the pipelines to be renovated or into said path (8). To prevent construction of costly shaft structures and to obtain large renovation distances of over 1000m said method is developed in such a manner that the starting and/ or target opening (2, 3) is/ are constructed at least partially through the material between the pipelines (1) and the earth surface using a control system co-operating with locating means, the carrier system with a rinsing agent added is inserted into the pipelines to be renovated in the direction of the target opening (3), and the new pipelines (9) are inserted in the direction of the starting opening (2).

Description

"Method and device for the rehabilitation of pipelines laid below the surface of the earth and use"

The present invention relates to a method for the rehabilitation of pipelines laid below the surface of the earth, in particular in the mulit landfill, road and sewage area, wherein a start and / or destination opening is at least partially created, with a pipeline to be rehabilitated at least one laying path for Introducing a new pipeline and where a support device coupled to the new pipeline is introduced into the pipeline to be rehabilitated or into the installation path. The present invention also relates to a device and a use in connection with the method in question

Numerous rehabilitation methods for underground pipelines are already known from practice. In the methods under consideration here, a new pipeline is laid in an installation path that is at least predetermined by the pipeline, if not in a defective pipeline. Two rehabilitation methods and their disadvantages are given as examples renovating pipe is either destroyed or remains

In a simple variant of the so-called “relining process”, the pipeline to be rehabilitated serves as a receptacle for the new pipeline. If the pipeline ends of the pipeline to be rehabilitated are not already accessible through existing shafts or end above ground, there is a start and end to create a target shaft The new pipeline is drawn into the pipeline to be rehabilitated, the pulling by means of a rope from a target shaft being a disadvantage of the "relining method" that it has a cross-sectional constriction of 10% through the pulled pipeline up to 20%

The so-called "burst lining method" used in particular for the rehabilitation of garbage dump seepage water pipes provides for the destruction of the damaged pipeline. A crushing and / or upgrading device in the form of a burst rocket destroys the existing, damaged pipe in a striking and compacting manner and at the same time pulls the new one Line is a prerequisite for this method that the line to be rehabilitated is so wide that a cable connection between the end points of the line The traction rope is important in terms of supporting the forward movement of the drakes and in terms of directional stabilization

The method in question has considerable disadvantages.On the one hand, only short sections of the defective pipeline can be repaired.On the other hand - especially in the case of leachate drainage from landfill sites, which usually ends at an underground level - it is necessary to create a start and finish opening in the form of a shaft Laboratory equipment and personnel expenses arise. In addition, additional shafts must be created in the event of unexpected stagnation, which further increases the cost of the “burst lining method”. It is also disadvantageous that there is no control over the storage conditions of the new pipe and that a maximum widening of the laying path given by the destroyed line is only possible by 75 mm, which is important from the point of view of the removal of pipe sections of larger cross-section, for example pipe sections which can be moved by camera. that earth missiles get stuck in the pipe to be renovated, so that an additional salvage shaft has to be created, which increases the costs by another

With both the "Relinig method" and the "Burst lining method", only relatively narrow ranges can be achieved (burst lining approx. 50 m, relining approx. 600 m). It is also essential that - unless existing shafts can be used - elaborate start and finish openings as well as larger intermediate values and / or additional stalls have to be created in order to provide the support for the new pipeline or the crushing and / or expanding device in the event of the damaged pipeline being destroyed in this or in a routing path specified by this To be able to operate, in particular in the “bursting” method, it is even impossible to fall back on an existing shaft, since the earth rocket requires large dimensions of the start and target openings in order to be attached to the pipeline to be renovated with a view to the renovation the act of leaching in Mulideponie is still happening thing added that any Mullkörperbewegung release undesirable contaminants that increase the cost for industrial safety measures

From the area of trenchless re-bending of pipes in road construction, the so-called "horizontal spool drilling method", for example from the article "Trenchless laying belongs to the future" in the Fachzeitschnft s + t 46 (1992) 11 pages 10 to 14 - knows, In practice, holes can be drilled over ranges up to 1400 m. First of all, a controllable pilot hole is driven into the ground by means of a gun mount on the road with drill rods that can be extended in segments and a control device that can be moved in all directions and is fixed to the drill pipe with a drilling tool. The control device is equipped with a probe which interacts with a locating device. After the pilot drilling, the control device is replaced by an expansion head, to the rear end of which a pipeline is coupled. During the pilot drilling and during the expansion or pipe pulling in, a drilling suspension occurs for the purpose of lubrication, stabilization, transport of the loosened earth, reduction of friction and sealing of the drilling from the tool nozzles. So far, the process has only been carried out in almost stone-free, grown soil and at a relatively low laying depth of approx. 0.6 to 5 m and is only used to re-lay cables and pipes without trenches.

On the basis of these methods, which pursue different objectives, and the devices necessary for their implementation - pipe rehabilitation on the one hand, new pipe laying on the other hand - the object of the invention is to specify a method of the type in question which enables pipeline rehabilitation over large ranges in a short time and with a controlled pipeline pull-in into the pipeline to be rehabilitated or into the installation path specified by it and which largely avoids the construction of expensive manholes at the start and / or destination point. Furthermore, a device is to be specified which enables a special exemplary embodiment of the method to be carried out, at least partial destruction of the pipeline to be rehabilitated and possibly widening of the installation path. Finally, a special use of a pipe re-laying device which is known per se, namely a horizontal flushing drilling machine, for the purpose of renovating underground pipes is to be specified.

With regard to the method, the above object is achieved by the features of patent claim 1. According to this, a method of the type in question is further developed in such a way that the start and / or destination opening is at least partially created by means of a control device cooperating with a locating device - through the material located between the pipeline and the surface of the earth - such that the carrier device with the addition of a detergent in the pipeline to be renovated in the direction of the target opening and that the new pipeline is introduced in the direction of the start opening.

According to the invention, it has been recognized that the disadvantages which occur in known pipeline rehabilitation methods can be overcome if the advantages of a pipeline pull-in into a pipeline to be rehabilitated or into a bending path specified by it are combined with the advantages which the known per se Honzontal¬ spool drilling. The use of the control device cooperating with a locating device creates the possibility of at least partially creating a course-controlled start and / or finish opening with a minimal cross-section. The effort is low, since for the effectiveness of the control device only a hole up to the beginning of the pipe to be renovated or to a shaft-shaped start opening that may already exist there and / or from the end of the pipe to be renovated or from one there. existing, shaft-shaped target opening is to be created. This eliminates the need for expensive earthworks and shaft structures, and existing buildings or greenery, or even resting rubbish bays remain undisturbed. In addition, large ranges can advantageously be achieved due to the introduction of a carrier device into the pipeline to be renovated, which works to reduce friction by adding a detergent. This ensures that no intermediate shafts or even salvage shafts for stuck carrier devices - as in the "bursting line method" - have to be created.

In a manner known per se, the control device can be guided three-dimensionally when penetrating the material covering the pipeline to be renovated, so that curved, channel-shaped openings can also be created. This is important, for example, with regard to deep landfills, where it is important not to damage sealing foils or other installations on landfill borders. The material is pierced on the one hand and pierced on the other hand - in the case of straight sections. In the case of coarser material, in addition to a drilling tool, the control device can also advantageously have a milling tool. It is also essential that the control device can be connected to the carrier device, which transmits the force of the drive unit arranged above ground to the control device or its tools. Alternatively, however, it is also possible to use a self-propelled control device, so that no carrier device is necessary to create the start and / or finish opening. Furthermore, the cross section of the start and / or target opening created in whole or in part by means of the control device or its drilling and / or milling tool could be expanded and stabilized. For this purpose, an expanding head could be moved through the opening instead of the control device, in particular by means of the carrier device Expanding head could be designed in such a way that it can work forwards and backwards

Depending on the accessibility of the pipeline to be rehabilitated, the control device could now be used up to the beginning of the pipeline and / or from the end of the pipeline in order to implement an opening to the surface of the earth that complies with the present conditions. At the end of the pipeline to be rehabilitated, there is no manhole-shaped manhole If the target is opened, the control device can be routed through the entire pipeline to be rehabilitated down to the surface of the earth. It is also important that the control device can also be carried out through the pipeline to be rehabilitated if blockages, faults or other obstacles occur in the Protrude cross-section, are expected Due to the advantageous three-dimensional controllability, such obstacles can be avoided or traversed by means of the drilling and milling tools. Furthermore, the control device, which is preferably coupled to the carrier device, can also be used in a non-linear manner Follow the damaged pipe easily

In principle, the method according to the invention makes it possible to pull in a new pipeline while the old pipeline continues. In this application, it is particularly advantageous to fill up the annular gap formed between the pipeline to be rehabilitated and the pipeline being pulled in by means of a sealing material and In this connection, it should be emphasized that the rinsing agent introduced by the carrier device is used to fix the newly drawn-in pipe. The rinsing agent could contain an absorbing cement for this purpose, so that the flowability is temporarily guaranteed

An alternative and, with regard to the possibility of maintaining or enlarging the pipe cross-section of the new pipeline, an extremely important application of the present method according to the invention consists in the renovation with at least partial destruction of the pipeline to be rehabilitated. For example, after creating a start opening, the control device could may be removed from the carrier device of the device and a comminution and / or expansion device are mounted on the carrier device. As an alternative, in particular in the case of short, straight pipelines to be rehabilitated, it was also possible to use a self-actuated comminution and / or expansion device which is introduced into the pipeline to be rehabilitated before the carrier device is introduced.

Depending on the application, the shredding and / or expanding device could either be introduced into the pipeline to be renovated in the area of the start opening and work in the direction of the target opening or from the target opening in the direction of the start opening rehabilitation pipeline are introduced At this point it is emphasized that the terms start opening and target opening are to be understood so that they either include the pilot holes made by the control device leading to the earth's surface or an already existing shaft-shaped start and / or target opening include. In the latter case, the start and / or finish opening is only partially created by the control device equipped with the corresponding tools

In view of the requirement for pipelines to be accessible by camera, it is particularly expedient not only to destroy the pipeline to be rehabilitated, but also to expand the cross section of the installation path, the surrounding material also being removed and containing the remnants of the destroyed pipe is either radially pressed or discharged. With the corresponding comminution and / or upgrading device, it is also possible to carry out a destruction of the piping without widening the laying path in order to pull in a pipeline of the same diameter if necessary.

If larger cross-sectional differences are to be achieved when expanding, it is advantageous to carry out a gradual expansion, successively larger crushing and / or upgrading devices being used. In this case, a pulling rope could preferably be assigned to a first comminution and / or expansion device, which, for example, is carried in the direction of the start opening, decoupled there and connected to a laying path finder. The laying path finder is pushed in the direction of the target opening and pulled by means of a pulling rope, whereby it easily passes curved start and target openings or bores due to a round head and initiates the carrier device into the laying path widened in the first stage. The laying path finder is de - mounted and the carrier device is connected to a second comminution and expansion device and / or to the new pipeline

In a special application of the method according to the invention for garbage dumps, the garbage body of which is wholly or partially enclosed by a penetration body that seals against the outside earth, special sealing measures are necessary in connection with the overall pipe rehabilitation, which is to be rehabilitated, leading through the penetration body The pipeline ends in an already partially existing start opening in the form of a leachate well and could be made of plastic. It would be conceivable to pull a new plastic pipe into the plastic pipe, in addition to filling the annular gap, the two lines could also be welded together in the pipes of the penetration area around stoneware pipes which are encased by a concrete seal. In this case either the stoneware pipe can be partially destroyed or - if the stoneware pipe is completely destroyed res - the concrete seal is milled out and expanded for the insertion of a new pipe. In addition to the possibility of processing the concrete seal with the help of the shredding and / or expanding device until a residual wall remains with a suitable tool design and, if necessary, control, a sewer robot could also be used for this purpose. The annular gap created for the new pipeline could also be used here Sealing compound to be filled

So that the loosening and sealing foil damage that has occurred in the garbage body and in the transition area to the penetration body can now be sealed again, a cavity is created in the cavity created by the expansion of the bending path after the new pipeline has been laid - The insertion lance is inserted into the area of the waste body adjacent to the penetration body. The high-pressure injection lance injects the sealant preferably in a radial direction. In order for the lance to be inserted into the relevant area, it may be necessary to widen it to include a new pipeline The lance could be operated discontinuously and in particularly vulnerable areas, such as the transition area consisting essentially of clay between the penetration body and the garbage body with higher pressure and greater volume, possibly also under Ver change the cross section of the injection nozzle With regard to the function of the penetration body, it is expedient to design the area of the new pipeline to be drawn in there in the sense of a closed lead piece on the remaining slotted drainage line. The lead piece could be welded directly to the rest of the new pipeline, so that the pulling-in process into the pipeline to be renovated or into the installation path runs undisturbed.

Further preferred measures in connection with the seal within the penetration body can be found in patent claims 16 to 18 and are aimed at measures to improve the statics and to prevent the new pipeline from floating when the sealing compound is introduced. A fast-curing, low-viscosity cement-based dam is preferably used as the sealing compound. The backwardness of the dam could be realized by additional dovetail-like depressions in the outer jacket of the new pipe, for example made of HDPE or PE, which leads to an interlocking with the dam and to a reduction in temperature fluctuations and changes in diameter. The arrangement of skids results in a complete covering with sealing compound and the static participation of an old line which has at least not been completely destroyed, and also prevents the line from floating. Alternatively, the floating of the line could also be prevented by inserting a shut-off bladder and filling water during the dam.

The carrier device could be designed as a pulling and / or pushing device and, specifically, as a guide linkage that can be extended and removed. The carrier device could furthermore be used for transport and - if no other devices are arranged on the carrier device - for dispensing the detergent.

The bentonite suspension used as a flushing agent in the horizontal flush drilling method, which is known per se, is in principle also suitable for the method according to the invention for achieving the required bedding module. In a further and particularly preferred manner, however, an organic, bacterially decomposable suspension is used. As a result, the laying path is temporarily stabilized before the new pipeline is drawn in and - in the case of a drainage line installation - the through openings there are functional after the suspension has decomposed. Particularly in the drainage rehabilitation application, a particularly advantageous embodiment of the pipeline rehabilitation method according to the invention is seen to form a flow base after the - all around slotted - new pipeline has been drawn into the laying path. In order to prevent a loss of dirty water at the drainage bottom, a flowable one could , hardenable cement mixture can be introduced into the drama line using the force of gravity from the highest point of the new pipeline, which is then sedimented on the pipe base due to gravity. This process could now be monitored by camera. A controlled material discharge in the interior of the new line is particularly advantageous

According to the method according to the invention, defective pipelines can be rehabilitated from a wide variety of materials without or with partial or complete destruction of their own. The pipelines to be rehabilitated could consist of stoneware, fiber cement, plastic, reinforced or unreinforced concrete, cast iron, steel or reinforced concrete

With regard to the advantageous creation of start and / or finish openings and their guidance to the surface of the earth, at least one end of the new pipeline could be accessible from the outside and be designed in the sense of an inspection opening.This enables easy subsequent access to the introduction of aids such as pulling ropes which cleaning or monitoring agents could be led through the line

The present invention furthermore relates to a device which achieves the underlying object-related task by the features of patent claim 26. The device is then designed such that a control device interacting with a positioning device for at least partially creating a start and / or Target opening - through the material located between the pipeline and the surface of the earth - it is provided that the control device has a drilling and / or milling tool, that a carrier device working with the addition of a rinsing agent is provided, to which a new pipeline for introduction into the to be rehabilitated is provided Pipeline or can be coupled into a predetermined laying path and that at least one shredding and / or expanding device is provided for at least partially destroying the pipeline to be rehabilitated By means of the device according to the invention, an inexpensive creation of a start and / or finish opening is made possible, the control device equipped with a drilling and / or milling tool being used here. By adding the rinsing agent, the carrier device introduced into the pipeline to be renovated can be guided over large ranges almost without friction. According to the invention, the device is further equipped with a comminution and / or expansion device for the purpose of comminuting materials of high strength, with which a preferred embodiment of the method can be taken into account

The pilot bore created by the control device between the surface of the earth and the pipeline to be sanitized or an already existing, shaft-shaped start and / or destination opening could be expanded and stabilized by leading an expansion head through the pilot bore. The expanding head could preferably work forwards and backwards. For this purpose, the expanding head could have an ellipsoidal shape or the shape of a rugby ball, the two opposite ends tapering and thus being effective in both directions

With regard to a change of direction, the carrier device advantageously works with pressure and tension and is designed as an extendable or removable guide linkage and an integral part of the device according to the invention. The guide linkage serves to overcome the distance, to transmit force and to center and rotate any tools . The extension corresponds at least to the range of the pipeline to be renovated. In the event that a start opening and a target opening are created by a control device assigned to the carrier device, the guide linkage can expediently be extended to the range between the start and target opening. Just like the control device, the expansion head could also be connectable to the carrier device. Alternatively, self-actuated versions could also be used the control device and the expanding head are used

According to a preferred embodiment of the device according to the invention, the comminution and / or expansion device could be designed such that it not only applies force to the pipeline to be rehabilitated, but also to the surrounding material, so that a new pipeline with a larger cross-section enters the resulting laying path ¬ can be pulled in an advantageous manner, the crushing and / or expanding device can be connected to the carrier device and is rotated, centered and guided through the pipeline to be renovated or through the laying path specified by the latter. Alternatively, a self-propelled, self-centered comminution and / or expansion device could also be used, a so-called “mud motor” being used for the drive.

The shredding and / or expanding device could be inserted into the pipeline to be renovated as a separate tool, possibly coupled to the carrier device. Furthermore, it is possible to directly track the new pipeline of the shredding and / or expanding device, or to use a structural unit comprising an upstream shredding and / or upgrading device and a downstream coupling component with a coupled new pipeline. In the case of a structural unit described above, which is connected to the carrier device, a drive-related separation of the comminution and / or expansion device from the coupling component is to be realized, the rotational movement of the guide linkage or the carrier device being transmitted only to the comminution and / or expansion device and the coupling component drags the new pipeline behind it.

According to a further configuration of the comminution and / or expansion device, it could also expand the start and / or destination opening created by the control device when it is introduced or removed. A design of the shredding and / or expanding device would also be conceivable, which assumes its effective dimension or its operating state only when it is introduced into the pipeline to be rehabilitated, and passes through the start and / or finish opening in an idle state - in a ring dimension.

In addition, device-related exemplary embodiments are to be emphasized, which advantageously design the pipeline shredding process and the widening process of the laying path. The shredding and expanding device could work in a beating and / or bumping and / or breaking and / or cutting and / or grinding and / or grinding manner. Suitable tools are used for this in accordance with the purpose pursued. Milling tools, which can be preceded by impact hammers, are particularly suitable for comminution. Finally, rollers can be used to compact the processed, possibly with the soil or waste material obtained as a result of an expansion process mixed pipe material. In addition, there is the mixing of the comminuted material with the detergent, which is taken into account when designing the tools.

The shredding and / or expanding device could also have a plurality of tool heads on which the striking and / or impacting and / or breaking and / or cutting and / or grinding and / or scraping tools are arranged in the desired order . E.g. could be associated with a first, front tool head, striking and breaking tools, and the second, rear tool head with mahogany tools. With regard to a material-related choice of tools, the renovation of PE pipes, for example. the use of a scraping tool was also found to be advantageous.

A drive unit, which is arranged above ground or - if present - is stationed in a shaft-shaped start opening, could serve to drive the carrier device, which also serves to transmit power to the devices connected to it. Furthermore, a separate drive means could be provided, which drives the shredding and / or expanding device separately. In this way, radial and / or axial forces could be controlled, in particular amplified.

The device according to the invention has a detergent supply unit so that the reduction in friction and the long ranges of the carrier device which may be connected to the various above-described devices can be achieved. This is advantageously arranged in an accessible manner like the drive device and supplies the carrier device with detergent.

Finally, a further advantageous embodiment of the device according to the invention provides a location technique that is preferred with regard to large installation depths. Taking into account large installation depths, the control device is not equipped with a probe whose signal range is short, but instead a cable-guided transmitter is provided which allows work to be carried out at installation depths of approximately 40 m. Further location-specific embodiments of the device relate to the use of customary navigation methods using the earth's magnetic field and induction loop measurement. Of essential importance for a pipeline rehabilitation in the landfill area is also that stronger transmitter systems are unsuitable for signal transmission because there are metallic deposits in landfills that deflect the signal. It is also advantageous to design the control device to be non-magnetic.

With regard to further advantageous refinements of the device according to the invention, reference is made to the general description of the method according to the invention, especially since features are explained which are also relevant to the device.

Another object of the invention according to claim 39 is the use of a horizontal drilling machine, known per se, for the renovation of underground pipelines, the advantages of which are known from the area of trenchless relocation of pipelines being exploited. This horizontal drilling machine could basically be used to carry out the method according to the invention. However, the horizontal flushing drilling machine does not correspond to the device according to the invention since it cannot partially or completely destroy the pipeline to be rehabilitated or enlarge the cross-section of the installation path after the damaged pipeline has been destroyed. However, a horizontal drilling machine could be designed in accordance with the features of the device according to the invention. It is also important that a pipe rehabilitation according to the invention can be carried out in a variety of areas, such as, for example, in the area of landfills or in the street and waste water area.

There are now various possibilities for designing and developing the teaching of the present invention in an advantageous manner. For this purpose, reference is made on the one hand to the claims subordinate to patent claims 1, 26 and 39, and on the other hand to the following explanation of an exemplary embodiment of the invention with reference to the drawing. In connection with the explanation of the exemplary embodiment of the invention mentioned with reference to the drawing, preferred embodiments and further developments of the teaching are explained in general. Show in the drawing

1 shows a schematic, longitudinally sectioned representation of a landfill (type deep dump) as a special application of the method according to the invention at a point in time immediately after the target opening has been created using a horizontal drilling machine according to the invention and Fig. 2 in a schematic, longitudinal section, enlarged and by one

Process enhancement with regard to the penetration body added, a detail from FIG. 1 at a point in time after the introduction of the new pipeline into the Vertege path.

Fig. 1 shows a landfill type of landfill, in which a defective pipe 1 is laid, which is to be renovated. A start opening 2 and a target opening 3 can also be seen. The start opening 2 extends through the soil 4 and comprises an already existing collecting shaft 5. The destination opening 3 extends through the garbage body 6 of the landfill. The refuse body 6 is surrounded by a penetration body 7, to which the start opening 2 or the collecting shaft 5 connects.

From Fig. 2 it follows that the pipe 1 to be renovated specifies a Vertegepfad 8, in which a new pipe 9 is inserted. The new pipeline 9 is coupled to a carrier device, not shown here.

According to the invention, the method in this exemplary embodiment is carried out in such a way that the start opening 2 is partially and the target opening 3 completely by means of a control device, not shown, which interacts with a locating device - through the material located between the pipeline 1 and the surface of the earth. In the exemplary embodiment described here, a carrier device, also not shown, is introduced into the pipeline 1 to be renovated in the direction of the target opening 3 with the addition of a detergent. So that the target opening 3 can be created, the control device is connected to the carrier device and, after passing through the pipeline 1 to be renovated, creates the target opening 3. In this exemplary embodiment, the control device is now at the surface of the earth by a - also not shown - Shredding and / or expanding device replaced and this subsequently coupled the new pipe 9 to the carrier device. Equipped in this way, the carrier device is moved in the direction of the start opening 2.

From Fig. 2 it can be seen that destruction of the pipeline 1 to be renovated and an upgrade of the surrounding material 10 of the landfill to enlarge the cross-section has taken place and the new pipeline 9 has moved into the installation path 8. In contrast to the material 10 of the garbage body 6, the material 10 of the penetration body 7 is the concrete of a concrete seal 11.

In this exemplary embodiment, the concrete seal 11 is also broken up and expanded with the comminution and expansion device, since here the thickness of the penetration body is dimensioned such that the abrasive effect on the tools remains insignificant. Otherwise, a duct robot can be used for the area of the penetration body 7 for the partial destruction or expansion of the concrete seal 11, with a residual wall remaining.

The annular gap 12 formed between the new pipeline 9 and the remaining wall of the concrete seal 11 is indicatedly filled with sealing material 13. The sealing material 13 now extends not only in the annular gap 12, but also in the transition region 14 between the penetration body 7 and the refuse body 6 and in the region 15 adjacent to the penetration body 7 and in this way creates an effective seal to the outside, in particular in the transition area 14, so that the destruction of sealing foils is negligible.

The pipeline 1 shown in Fig. 1 has two sections A and B. In section A, the pipeline 1 is designed as leachate drainage, while the section B extending in the penetration body 7 has a closed pipeline jacket. The new pipeline 9 in FIG. 2 also has a closed feed piece 16 which extends in the penetration body 7 and is welded to the rest of the pipeline 9 which serves for drainage.

With regard to the device, a reference number 17 denotes a horizontal drilling machine from which the carrier device (not shown) equipped with the control device in the form of a guide rod is brought into the soil 4 towards the target opening 3. It is essential for this device that a shredding and expanding device is part of its equipment, which is equipped with impact, breaking and grinding tools which serve to destroy the pipeline 1 and are able to remove the material surrounding the pipeline 1 10 attack in the area of the garbage body 6 and in the area of the penetration body 7. To realize the material removal, for example. an additional drive unit or tool heads connected in series can be provided and the tools could be matched to the hardness of the material 10.

With regard to further features not shown in the figure, reference is made to the general part of the description.

In conclusion, it should be pointed out that the teaching according to the invention is not restricted to the exemplary embodiment discussed above. Rather, the most varied of process variants and fields of application to be adapted to the respectively varying real conditions are possible, for example in gas, water or waste water pipes. Likewise, the device according to the invention can vary precisely with regard to the size reduction and expansion device, for example with regard to the sequence of the tools.

Claims

P a t e n t a n s r u c h e

1 Method for the rehabilitation of pipelines installed below the surface of the earth, in particular in the mulit landfill, road and waste water area, a start and / or destination opening (2, 3) being at least partially created, with a pipeline (1) to be rehabilitated at least one Vertegepfad (8) specifies for leveling a new pipeline (9) and wherein a carrier device coupled to the new piping (9) is inserted into the pipeline to be rehabilitated or into the laying path (8), characterized in that the start and / or target opening (2, 3) by means of a control device which interacts with a location device, at least partially - through the material located between the pipe (1) and the surface of the earth - that the carrier device is added to the pipe (1) to be renovated with the addition of a rinsing agent is introduced in the direction of the target opening (3) and that the new pipeline (9) in the direction of the start opening (2) is introduced

2 The method according to claim 1, characterized in that the Steuereinπchtung for creating the start opening (2) and / or the target opening (3) is performed three-dimensionally and has a drilling and / or milling tool

3. The method according to claim 1 or 2, characterized in that the Steuereinπch¬ device after at least partially creating the start and / or destination opening by a stabilizing and possibly enlarging the cross section of the start and / or destination opening, preferably forward and backward working, expanding head is replaced

4 The method according to any one of claims 1 to 3, characterized in that the control device is guided with the support device up to the pipeline to be renovated and / or through the pipeline to be renovated or that the support device after passing the piping to be renovated with the control device is connected

5 The method according to any one of claims 1 to 4, wherein the new pipe is introduced into the pipe to be renovated, characterized in that an annular gap which is formed between the pipe to be refurbished and the new pipe is filled and pressed by means of a sealing material

6. The method according to any one of claims 1 to 4, characterized in that the pipeline (1) to be renovated is at least partially destroyed before or during the introduction of the new pipeline (9)

7 The method according to claim 6, characterized in that a Zerkleiπerungs- and / or upgrading device either with the carrier device or separately - before imports of the carrier device - is introduced into the piping to be rehabilitated, which at least partially the pipeline to be cleaned in the direction of the target opening destroyed

8. The method according to claim 6, characterized in that after carrying out the carrier device through the pipeline to be rehabilitated, this is assigned a comminution and / or upgrading device which at least partially destroys the pipeline (1) to be rehabilitated in the direction of the start opening (2)

9. The method according to any one of claims 6 to 8, characterized in that during and / or after the destruction of the pipeline to be rehabilitated by means of the crushing and / or widening the laying path (8) is widened, which to be destroyed or destroyed Pipe (1) surrounding Mateπal (10) is subjected to forces

10 The method according to any one of claims 6 to 9, characterized in that the laying path is gradually expanded by means of differently dimensioned, in particular successively larger dimensions having transmitters, comminution and / or upgrading means

11. The method according to claim 9 or 10, characterized in that a traction rope is coupled to a first comminution and / or upgrading device during the first destruction and upgrading process, which initially remains in the laying path and before a second upgrading process or before the binding new pipeline from the first comminution and expansion device is uncoupled, attached to a laying path finder and possibly subjected to tensile forces

12. The method according to any one of claims 6 to 11, wherein the pipeline (1) of a garbage dump mrt a gauze body (6) and a Durchdπngungskorper (7) is renovated, characterized in that in the area of the Durchdnnguπgskörpers (7) and preferably in one sealing area (15) of the gauze body (6) adjacent to the penetration body (7) after the new pipeline (9) has been drawn into the possibly widened Vertege path (8)

13. The method according to claim 12, characterized in that the pipeline (1) to be renovated, in particular a stoneware pipe line surrounded by a concrete seal (11), within the penetration body (7) is destroyed to such an extent that a residual wall of the pipe to be renovated remains or that a remaining wall of the concrete seal (11) remains and an annular gap (12) which forms to form the new pipeline (9) is filled with sealing material (13)

14. The method according to claim 13, characterized in that the annular gap is dimensioned such that a high-pressure projection lance filled with sealing material (13) can be guided through the penetration body (7) into the refuse body (6), which is initially up to the penetration body ( 7) adjacent area (15) of the gauze body (6) is introduced and then moved back with ongoing injection in the direction of the outer wall of the penetration body (7)

15 The method according to any one of claims 12 to 14, characterized in that the new pipeline (9) for the area of the Durchdnngungskorpers (7) has a closed pre-fitting (16)

16 The method according to any one of claims 12 to 15, characterized in that the outer wall of the new pipeline has depressions for creating a labyrinth seal

17 Method according to one of claims 12 to 16, characterized in that the new, in particular made of plastic (HDPE), pipeline for improvement the static and to counteract a floating during sealing, sliding skids are assigned.

18. The method according to any one of claims 12 to 17, characterized in that wah¬ rend the filling of the sealing material, the new pipeline or a portion thereof is sealed with a shut-off bladder and filled with water to counteract a floating of the new pipeline during the insulation

19 The method according to any one of claims 1 to 18, characterized in that the carrier device is designed as a tension and / or pressure device, in particular as a guide linkage, which transports the detergent and, optionally via further devices, outputs it

20. The method according to any one of claims 1 to 19, characterized in that an organic, bacterially decomposable suspension is used as rinsing agent

21. The method according to any one of claims 1 to 20, characterized in that the piping to be renovated consists of stoneware, fiber cement, plastic, reinforced or unreinforced concrete, cast iron, reinforced concrete or steel

22. The method according to any one of claims 1 to 21, wherein it is all around slotted pipes, in particular drainage pipes, characterized in that a flowable and hardenable, in particular mineral, Mateπal in the new, in the to be renovated to form a flow sole Piping or in the pipeline introduced by this predetermined laying path is filled

23 The method according to claim 22, characterized in that the flow sole formation takes place by using gravity or by progressively controlled material discharge in the interior of the new pipeline.

24 Method according to one of claims 1 to 23, characterized in that at least one end of the new piping introduced into the pipeline to be rehabilitated or into the laying path provided by this in the sense of an inspection opening from the outside, in particular at the is created by the control device and, if necessary, enlarged by the expansion head.

25. The method according to claim 24, characterized in that at least one auxiliary means for cleaning and / or checking and monitoring is inserted temporarily or permanently into the new pipeline to be rehabilitated or into the pipeline introduced by this through the revision opening is, in particular it is a traction cable with which a mechanical cleaning agent or a camera is pulled through the line

26 Device for the rehabilitation of pipelines laid below the surface of the earth, in particular in the landfill, road and waste water area and in particular for carrying out the method according to one of claims 6 to 25, characterized in that a control device cooperating with a location device for at least partial creation A start and / or finish opening (2, 3) - through the material located between the pipe (1) and the earth's surface - it is provided that the control device has a drilling and / or milling tool that provides a carrier device working with the addition of a detergent to which a new pipeline (9) can be coupled for being connected to the pipeline (1) to be rehabilitated or into a laying path (8) predetermined by it, and that at least one shredding and / or expanding device for at least partially destroying the pipeline to be rehabilitated (9) is provided

27 device according to claim 26, characterized in that the control device in the region of the at least partially created start and / or finish opening (2, 3) can be replaced by a preferably forward and backward, in particular ellipsoidal, expanding head

28 device according to claim 26 or 27, characterized in that the carrier device as a pressure and / or extendable as at least to the range values of the pipeline (1) to be renovated, preferably to the range between the start and finish openings (2, 3) Zugeinπchtung, in particular as a guide linkage is executed

29. Device according to one of claims 26 to 28, characterized in that the Steuereinπchtung, possibly the expanding head, can be connected to the carrier device or works self-propelled.

30. Device according to one of claims 26 to 29, characterized in that the comminuting and / or expanding device can be connected to the carrier device or operates in a self-propelled manner.

31. The device according to one of claims 26 to 30, characterized in that the crushing and / or expanding device is carried out separately, optionally with a directly tracked new pipeline or as a structural unit with a subordinate coupling component for the new pipeline.

32. Device according to one of claims 26 to 31, characterized in that the crushing and / or expanding device at least one with impact and / or impact and / or crushing and / or cutting and / or grinding and / or Has scraping tools equipped tool head.

33. Apparatus according to claim 32, characterized in that the crushing and / or expanding device comprises at least two series-connected tool heads, the tools of which are matched to the material of the pipeline to be rehabilitated (1) and, if appropriate, of the material surrounding the pipeline to be rehabilitated and to both Tool heads are distributed.

34. Device according to one of claims 26 to 33, characterized in that a drive device is provided, which if necessary with the control device or possibly subsequently with the expansion head or possibly with the new pipeline or possibly with the shredding device. and / or expander connected carrier device.

35. Apparatus according to claim 34, characterized in that at least one werte¬ res drive means is provided for driving the shredding and / or expanding device. 36 device according to one of claims 26 to 35, characterized in that a detergent supply unit is provided which provides detergent for the carrier device

37 device according to one of claims 26 to 36, characterized in that the control device has a cable-guided transmitter

38 Device according to one of claims 26 to 37, characterized in that the locating device comprises means for induction loop measurement and / or for navigation

39 Use of a horizontal coil drilling machine for the rehabilitation of pipelines laid below the surface of the earth, in particular for carrying out the method according to one of claims 1 to 26

40 Use according to claim 39, characterized in that the horizontal winding drilling machine (17) has the features of the device according to one of claims 26 to 38

41 Use according to claim 39 or 40, characterized in that the Honzon-talspulbohrmaschine is used for pipe rehabilitation in the area of mulip landfills and / or in the street and wastewater area