JP2002518968A - Method for installing at least one cable and / or hollow pipe in laid pipes used for supply or disposal, more particularly in sewage pipe systems or mains etc. - Google Patents

Abstract

(57) [Summary] The present invention relates to a method for connecting at least one cable and / or hollow pipe (2) to an already laid pipe for supply or sewage (1), more specifically, a sewage pipe system or network. Related to the method for installation in In this method, the cable and / or hollow pipe to be laid is introduced into the pipe (1) and fixed to its wall. A feature of the invention is that a tube or hose shaped inner lining (3, 16) is inserted / retracted into the already laid pipe and at least one flexible hollow pipe and / or cable (2) is connected to the outer surface. Is arranged in the region of.

Description

DETAILED DESCRIPTION OF THE INVENTION

The present invention relates to a method for installing at least one cable and / or hollow pipe in a laid pipe used for supply or disposal, more particularly in a sewer system or a main sewer. The cables and / or hollow pipes to be laid are inserted into the pipe duct and fixed thereon.

The telecommunications field is constantly growing, and at this time the limits of this growth cannot be foreseen. Although communication has evolved significantly, especially through satellites, the transmission of data and information over underground cables still occupies as important a position as satellite transmissions. In addition, underground pipelines and cables are becoming increasingly important with the introduction of glass fiber cables, which enable high speed and large data transmission.

In particular, in the case of a glass fiber cable, a high-speed and cost-effective crosslink is required to construct a communication network covering a wide area. For this reason, laying cables and pipelines naturally requires expensive underground work, unless existing existing hollow pipes or other available pipe ducts are used.

One method of installing hollow pipes into which cables such as cables and / or data transmission lines can be drawn, and methods that are currently practiced, include sewage pipes having a very large cross section. And fixing a new cable or hollow pipe to be installed on a wall by means of a pipe clip or a cable clip in an existing pipe duct. The clips are fixed, for example, by dwells provided at regular intervals along the wall of the sewer pipe. Obviously, this type of installation is labor intensive and costly.
And by using camera-guided and monitored robots in this type of pipe laying, human-accessible sewage pipes that are not large enough to walk can be installed unless cables or hollow pipes can be installed. This type of installation can only be carried out in sewage pipes with a sufficient cross section.

[0005] Some hollow pipes or cables can also be fixed by tension clips that apply tension around the entire cross section of the channel. These tension clips can also be laid out with the robot in existing pipe ducts, such as sewage pipes, which have a small cross section but are large enough for the robot, i.e. the pipe diameter must be at least 200 mm. . It is clear that the hollow pipes and cables to be laid later, whether fixed with pipe clips or cable clips or with the above-mentioned tension clips, are completely exposed to the original sewage action. These pipe routes must withstand both sewage streams with large water surges and high pressure pipe washing. In particular, experience has shown that sewage particles have a filigree clip.
) And have accumulated on tension clips and have been found to block channels sooner or later. As a result, these securing members used to secure subsequently laid cables and hollow pipes cannot withstand increased pressure. Therefore, it is unlikely that this method of operation will be used in the future due to anticipated failure factors.

In addition, normal channel work becomes difficult. The corresponding pipe duct cannot be subjected to a pressure test, i.e. it cannot be shut off by an isolation bubble.

In German Utility Model Publication No. 298 01 424, a flat hollow profile is used for laying cables in sewer pipes that cannot be walked in and is made of metal or plastic. The cable duct is attached or fixed to the inner wall of the sewer pipe by dwell. In this pipe laying process, a robot is used to enter a gas, water or sewage pipe that cannot be walked.

A disadvantage of these robot systems is that the pipe duct must have been previously refurbished. If cables or pipelines are installed by robots without previously modifying pipe ducts, in the future these cables will have to be covered with inliners (linings). This can no longer be done properly in most cases. This requires extra process steps that cannot be ignored and has extra costs.

[0009] Renovation processes for pipe ducts are also well known, such as forcing pipe sections of stable shape into old or damaged pipe ducts to join them together. The space between the new pipe to be added and the old pipe can be filled with these measures using a suitable casting material, so-called "dammer". For example, Hobas R.
It has also been proposed to insert cables or hollow pipes in the space between the new pipe and the old pipe duct, as long as the pipe of the above-mentioned shape, which has been spread by ohre AG), is inserted. This method is fundamentally expensive and, for example, when laying cables or hollow pipes for communication, it is always combined with the introduction of the above-mentioned stable pipe lining made of plastic or steel.

If the inliner is already laid, ie if an internal liner is provided, the laying of additional cables or hollow pipes always leads to further renovation work. If the pipe ducts need to be refurbished but have not yet been refurbished, this is of little importance and has indeed an economic advantage.

In any case, in the case of complete or newly laid pipe ducts, if these additional pipelines are laid in pipe ducts that do not require refurbishment, the refurbishment associated therewith will require additional refurbishment. It means that work and cost are required.

The present invention is a method of overcoming the above-mentioned disadvantages of the prior art, adding a cable and / or hollow pipe into an existing pipeline or pipe duct, and subsequently laying the same. Compared with the trench method directly, cables and pipes to be laid later are firmly protected and not absolutely essential, but if necessary, before or after modification is necessary It is another object of the present invention to provide a method in which the function of the pipe duct is not restricted, and furthermore, it is possible to remove the inliner retrofit later and leave the cables and / or hollow pipes in the pipe duct.

This is achieved using a method of the type mentioned at the beginning, characterized by the fact that a tubular or hose-like internal lining is pressed into the laid pipe duct and / or Or retracting, placing at least one flexible hollow pipe and / or cable on the outer surface of the lining.

[0014] Preferred embodiments of the invention will become apparent from the dependent claims.

The basic concept of the invention is to draw or push the tubular inner lining into an already laid pipeline duct, such as a sewage pipe system or sewage mains, or an exhaust pipe, for example. And to install a new cable or hollow pipe between the outer wall of this inner lining and the inner wall of the existing pipe duct for later drawing in another pipeline or cable. In this way, no additional mounting members or fixing members are required to fix and hold the newly laid individual cables and / or hollow pipes in the pipe duct. In addition, the tubular internal lining provides a new smooth pipe wall and the sewage is guided through the pipe wall, so that no obstruction is formed to restrict the flow in the pipe duct, and The solid portions carried along do not accumulate to form a blockage. In fact, the flowability is improved by the smooth inner surface of such a new tubular inner lining. All newly laid hollow pipes and cables are isolated from the medium flowing in the pipe duct, and there is no risk of corrosion or wear. At the same time, in this way, existing pipe ducts or sewage pipes can be further sealed or modified. In this way, there are virtually endless possibilities for installing and removing data communication networks at relatively low cost, for practically every household or other industrial and community use. Facilities are already connected to sewage pipe systems, which can also be used with sewage pipes having a relatively small diameter, for example for pipe ducts with a diameter in the range of 80-150 mm, This is because the method of the present invention can be used with these pipe ducts.

The condition of an existing laid sewage pipe, pipe duct system, or sewage mains network is such that the tubular inner lining has an outer diameter whose pipe diameter is to push or pull the tubular inner lining. It may be something that can only be retracted when it is much smaller than the inside diameter. In such a case, an irreversibly deformable hose as a tubular inner lining is drawn with its outer diameter in such a way that it can be easily drawn into the pipe duct. The hose is then deformed by any suitable means, such as high internal pressure, and pressed against the inner wall of the pipe duct. The cables and / or hollow pipes are also pressed irreversibly between the deformed hose and the pipe duct wall.

It is preferable to use a flexible hose as such a deformable hose. Such hoses can be folded into cross-sections to form flat panels and can be easily drawn into existing sewage pipe and pipe duct systems or sewage mains networks. When retracting this type of hose, the necessary hollow pipes and cables can be simultaneously attached to the outer surface. After the hose is drawn into the sewer pipe, the end of the hose is closed. Then,
When filled with a fluid or gaseous medium, for example compressed air, the hose is pressed against the inner wall of the pipe duct and, for example, if the material of the hose is cured by heat or UV light, it is irreversible by heat or UV light Cured to
Fixed to the inner wall. Once the hose is cured and secured, pressure can be removed from the interior of the hose. At this time, the hose is firmly mounted on the inner wall of the pipe duct and holds the cable and the hollow pipe.

Basically, the cables and / or hollow pipes to be installed (to draw the cables) can be attached to all sides of the tubular inner lining and to all sides of the existing pipe duct. is there. Preferably, such hollow pipes and / or cables are attached to the outer surface of the tubular inner lining so that once the tubular inner lining is installed, they are located above the pipe duct.

To facilitate the installation work on site, ie on the construction site, it is advantageous to use a tubular inner lining that already contains hollow pipes and / or cables integrated into the wall. For deformable hoses as internal linings, such cables and hollow pipes can be integrated into the wall.

When the tubular inner lining is installed by simply fixing the hollow pipe and / or cable to be installed to the outside of the tubular inner lining to be pushed or drawn in at only a few spots over the length of its outer surface It is enough that they remain fixed to each other. This type of spot fixation can also be done on site when installing the tubular inner lining using simple means,
The individual pipes or cables to be installed can be fixed to the tubular inner lining according to the requirements when drawing in the inner lining.

When the hose is drawn into the pipe duct, for stability it must be a woven hose, glass fiber hoses being preferred. Furthermore, it is possible to use woven hoses and plait hoses with woven fabrics impregnated with a curable resin as hoses. The resin used here is U
It is cured by V light or heat, and solidifies the hose pressed against the wall of the pipe duct by pressurization. Due to the adhesive nature of the resin, the tubular foil is removed from the outside and / or inside of the hose before it hardens, especially if the hose is drawn into the pipe duct in the folded state. It must be attached to the surface so that the hose walls do not stick together.

When using a tube which itself is dimensionally stable as a tubular inner lining, ie it does not set into its final shape when pressed and then pressurized, insert it into the pipe duct When doing so, it is convenient to spirally wrap the tubular shaped inner lining from the material web to a stable shape. For this purpose, a corresponding machine assembly is installed in the access shaft, and the material web is supplied to this machine as an endless web. In the machine, the web is spirally wound and the respective longitudinal ends of the helical shape longitudinally adjacent to each other are provided with suitable lengths, e.g. by flanges or welds over the ends. Linked together by means. The helical tube is then continuously pushed forward into the pipe duct, while at the same time the cable and / or hollow pipe to be installed are introduced onto the outer wall. The web material used to form the helical tube may be a metal or plastic web.

Another possibility, which is preferred in certain circumstances, is to use a plastic tube as the tubular inner lining, wherein the cross section of the tubular wall is drawn into the existing pipe duct as a folded profile part. After that, it is deformed and returned to the original tubular cross section by the heating medium by the internal pressure.

If a plastic tube is used as the tubular inner lining to achieve intimate contact between the stable-shape tube forming the tubular inner lining and the inner wall of the pipe duct, the existing pipe duct Before inserting into
Preferably, the tubular cross section is mechanically reduced by tensile extrusion, and after insertion, the elongation stress is released to return to the original tubular cross section. In this approach, the tubular inner lining is in close contact with the wall of the pipe duct, and thus the hollow pipe and / or cable drawn between the outer wall of this plastic pipe and the inner wall of the existing pipe duct will not Contact closely.

The later installation of cables and / or hollow pipelines in existing pipe ducts, such as sewage pipe systems or sewage mains networks, takes place via so-called manholes or other easily accessible locations. Is preferred.
In these installation access areas, the ends of the cables and / or hollow pipes inserted between the tubular inner lining and the existing pipe duct are guided into the distributor and / or the connector box. Thus, later in the area of these connector boxes they will either crosslink with each other or
Alternatively, it can be connected to an existing communication or electrical network, the same applies to hollow pipes into which cables, for example data communication cables, are inserted so that they can be accessed via the connector box.

The assembly material used to cover the cables and / or hollow pipes and attaches the cables and / or hollow pipes to one another and to the pipe walls simultaneously protects the entire surroundings. This is especially so if the cables and / or hollow pipes are completely embedded in the assembly material and they are mock-cast. In another embodiment, the cable and / or hollow pipe to be laid is covered with an adhesive assembly material and then inserted into the pipe with an assembly hose acting as a tubular inner lining. The assembly hose is then expanded and then pressed against the wall of the cable and / or hollow pipe, and after sufficient holding time for the cable and / or hollow pipe to stick to the wall, the pressure on the assembly hose is removed. It is. An advantage in this procedure is that only one assembly hose is used. Once installed in a pipe duct where cables or hollow pipes are pre-laid, the assembly hose can be removed and used again, so only the installed hollow pipes or cables can be used, such as sewage pipes. Remains in the existing pipe duct. In this way, cables and / or hollow pipes may be placed side by side at certain intervals and at the same time in very different arrangements.

The assembly hose used is preferably, as described above, detached again from the pipe duct after assembly, and by using such an assembly hose made of a suitable material, such a cable or hollow The assembly hose can be used several times to install the pipes into existing supply or disposal pipelines and systems.

The installation positions of these cables or hollow pipes, which are later attached to the inner wall of the pipe duct, can be determined in advance and these cables are arranged accordingly in the assembly hose. However, the mounting position is usually located in the upper semicircle or upper arc of the cross section of the pipe duct into which the cable and the hollow pipe are inserted.

The cable or hollow pipe to be installed is buried over its entire length in an adhesive assembly material, ie a corresponding suitable adhesive material which can be pressed and adhered to the wet inner wall of the pipe duct. Is preferred. Epoxy resins of this type are, for example, two-component epoxy resins that cure for a certain period of time, by the application of heat or by light of a suitable wavelength.

It is also possible to use mineral and / or synthetic inserts, for example in the form of woven, knitted or felt materials, as assembly or adhesive material. The most suitable materials are used according to the requirements.

After adhering and curing, the added cable is firmly connected to the inner wall of the pipe duct and is preferably bonded to the assembly material and, if applicable, the additional carrier material, the cable and / or the hollow The pipe is made into one component with the assembly material. The cables are covered and protected from the inside of the pipe duct by the layer of material and from the sewage if these pipes are sewage pipes. This material lines the cable to the pipe duct with a smooth transition,
It is fixed to the inner wall of the pipe duct and connected in a locked state. If necessary, an outer cover layer is provided, which is introduced in the form of a web material. That is, the web material is first attached to an assembly hose, after which the hollow pipes and cables to be laid are placed on the web material and embedded in the material.
However, this cover layer is firmly connected to the carrier material outside one side and remains in the pipe duct after adhering to the hollow pipe.

If the adhesive or carrier material used has static material properties, the process described above can be used to statically load the hollow pipe or pipe duct into which the cable is introduced. It is possible to increase the performance later.

As an assembly hose, it is preferred to use a flat hose drawn into the pipe duct. A flat hose here means one that can be crushed into a flat web before being introduced into the pipe duct,
This allows a hollow pipe or cable to be mounted on top of it.

[0034] This type of hose, once drawn into the pipe duct,
The cables and hollow pipes, which are expanded by a suitable liquid or gaseous fluid and are preferably laid on top and embedded in an adhesive material, are pressed against the inner wall of the pipe duct. To expand the hose, a gaseous or fluid medium can be used, and in most cases a gaseous medium such as air is preferred. To expand the hose, one end may be closed unless the hose is expanded from both ends.

In order to optimally press the assembly material together with the cable or hollow pipe, the circumference of the flat hose is made slightly smaller than the pipe duct,
By providing expandability, it can be adapted to the conditions of the pipe duct. A hose made of rubber or silicone and having essentially good separation properties with respect to the assembly material may be preferred.

In order to ensure optimal separation of the assembly hose from the material, once the material has hardened in the pipe duct, the assembly hose and the adhesive assembly material,
Alternatively, a separating layer can be arranged between the adhesive and / or the carrier material. The separating layer is in the form of, for example, a separating means in the form of a paste, but may be a suitable web material such as a plastic foil.

It is useful to secure the separation layer above the assembly hose, especially when the cables and / or hollow pipes to be laid in the pipe duct are attached to the side of the duct cross section (“transoms”). It is. A preferred option here is the use of a touch and close fixed band. In this way, the material is placed on the separating layer together with the hollow pipes and / or the cables, and the pipes and the cables can be precisely positioned with respect to the cross section of the pipe duct.

Another possibility is that a separating layer, for example in the form of a foil, is bonded or lined to one of the outer carrier materials or inserts, which attaches the cables and / or hollow pipes to the assembly hose. Is to remain fixed to the pipe duct even after it has been removed.

It is also possible to secure the separating layer in the form of a web material to the assembly hose using double-sided adhesive tape. This type of adhesive tape can be removed while or after the assembly hose is removed from the pipe duct.

Further details and features of the present invention will become apparent from the following description of embodiments with reference to the drawings.

To install the cable and / or hollow pipe 2 into an existing laid pipe duct 1, for example a sewage pipe as shown in FIG. 2, a flat web folded over a cross section Supply hose 4 forming the hose 3
, And is fed down through an inlet pulley 5 into a supply shaft 6, which extends vertically between the road surface 7 and the pipe duct 1 or channel 8. The hose 3 is a woven and / or plaited hose, impregnated with resin, and the hose 3 or its folded web is easy to handle, ie flexible. As the hose 3 travels in, the cable or flexible hollow pipe is unwound from the supply reel 11 and is fed, for example, through the supply trolley 9, and is guided along the guide pulley 10 along with the folded hose. Transported to At the inlet pulley 5, the cable and / or the hollow pipe 2 can be spot-fixed above the folded hose 3, so that the cable / hollow pipe 2 does not slip. The hose 3 is drawn into the pipe duct 1 through the shaft 6 together with the cable / hollow pipe 2 using, for example, a pull cable pulling in the direction of arrow 12;
This duct 1 is easily accessible from a shaft. The hose 3 is then drawn into another entrance or access area (not shown in FIG. 2), for example another shaft, where the end is accessible. Thus, the hose 3 with the cable / hollow pipe 2 on the upper side is arranged at the bottom of the pipe duct 1 as shown by the dotted line 13 in FIG. 2 or as shown by the cross section of the pipe duct 1 in FIG. 1A. Next, the hose 3 is removed from the supply reel 4, and the two open ends thereof are closed with airtightness. Next, when compressed air is supplied through at least one of these closed ends, for example by a compressor installed on the lorry 9, the hose 3 expands and is pressed against the inner wall of the pipe duct 1. Thus, the cable / hollow pipe 2 is pressed against the inner wall of the pipe duct 1. Thus, the cable / hollow pipe 2 is adjacent to the upper side of the pipe duct 1 as shown in FIG. 1B. When the hose 3 comes to this position adjacent to the inner wall of the pipe duct 1, it is fixed or solidified according to the type of the hose 3 to be used. For example, in the case where the hose 3 is of a type impregnated with a heat-curable resin, When the inside of the hose 3 is heated and the resin is cured, and the resin contains a resin that is cured by ultraviolet radiation, infrared rays are emitted into the hose 3 using an appropriate radiation device. After the hose 3 has hardened and hardened, the internal pressure is removed. The cable / hollow pipe 2 is then transferred to the transfer station 1, which is fixed on the wall of the shaft 6 so as to be easily accessible.
Insert into 4 and fix. Next, the end of the hose 3 is appropriately fixed to the transition area between the pipe duct 1 and the shaft 6 to seal the space between the wall of the pipe duct 1 and the outside of the hose 3. Thus, the pipe duct 1 is provided with a smooth internal lining as shown in FIG. 1B, so that the cable or the hollow pipe 2 adjacent to the inner wall of the pipe duct 1 is protected and sealed at the same time. Cables, such as data communication lines in the form of optically conducting fiber cables, which are required later, can be drawn from the transfer station 14 into the hollow pipe 2 installed between the pipe duct 1 and the hose 3.

As can be seen from FIGS. 1 and 2, the method here uses the existing pipe duct,
Cables and / or into sewage pipe systems or sewage mains networks
Or, it relates to the retrofitting of hollow pipes, a very flexible and versatile way to utilize existing sewage pipe systems to build communication networks.

A method for installing a cable and / or a hollow pipe 2 in an existing sewage pipe system has been described so far using a flexible folded hose 3, but in the sewage pipe 1 shown in cross section in FIG. 3A. There is a pipeline section that is formed by folding the deformed plastic pipe in the longitudinal direction, and this pipeline section has its ends folded inward when viewed in cross section, that is, the two ends are folded down. They are bent to face each other. The pipe thus deformed, for example made of plastic, is somewhat stable in its folded state as shown in FIG. 3A. The cables / hollow pipes 2 are arranged and fixed above this folded hose 3, so that they face the upper wall of the pipe duct. Once this hose 3 is in the pipe duct 1
When properly installed in the hose, the hose is deformed by the heating medium and the internal pressure and returns to the original pipe cross-section, so that it runs along the inside of the pipe duct 1 and at the same time connects the cable / hollow pipe 2 to FIG. Is pressed against the inner wall of the pipe duct 1 as shown in FIG.

So far, the method has been described using a hose as a tubular inner lining, but FIG. 4A shows a schematic view of a pipe duct 1 extending between two shafts. In contrast to the method described above, in the one shown in FIG. 4A, the individual pipe sections 16 are lowered into one of the shafts 3 and are pushed piece by piece into the pipe duct 1 by the feed mechanism 17. The individual pipe sections 16 are thus pressed into one another and are connected to one another by being welded together or screwed together.
At the same time, the cable / hollow pipe 2 is mounted above these pipe sections 16 and pushed forward together with the pipe sections 16. These cables / hollow pipes 2 can be supplied directly from the supply vehicle shown in FIG. Pipe part 1
After 6 has been pushed forward to the second shaft 3, the cable / hollow pipe 2 is again inserted into the transfer station 14 and fixed. When inserting the first pipe section 16 into the pipe duct 1, the required length of the cables / hollow pipes can be left in advance, or these cables or hollow pipes can be extended to the transfer station 14. . If that is desired, the filling material 15 is pressed into the remaining space, ie the space forming the ring chamber, as shown in FIG. 4B.

FIG. 5 illustrates the construction of a network using the method described above. For example, to construct a new data transmission network, the main pipe duct 1 of a pipeline network already laid, preferably provided for the disposal of sewage, is used, in which the hoses 3 mentioned above and Preferably, a number of cables / hollow pipes 2 are installed between the various transfer stations 14 using a tubular inner lining such as a pipe section 16. Similarly, the existing domestic connection, designated by the reference number 1, i.e.
The hose 3 is introduced via the main connecting pipe to be carried to form a tubular inner lining and is clamped between the hose and the pipe duct 1. Next, a transfer station 14 is provided in the home 18, connecting the home to the newly laid network. Another connection point 19 can be provided in the transition area from the home connection pipe duct 1 to the main pipe duct 1 to provide the necessary branch of the cable / empty pipe 2 to the home 18.

In the second embodiment shown in FIG. 6, cables and / or empty pipes 102 are placed in existing pipe ducts 101 such as sewage pipes already laid underground. In order to lay the hose, a supply source 104 of a hose 105 folded flat is provided at a supply shaft 103 extending vertically between the road surface 107 and the pipe duct 101. The supply shaft 103 is provided with a supply reel 106. The supply reel 106 is wound with a cable / hollow pipe 102 to be laid later.

These supply reels 106 can be provided, for example, on a trolley 108. The cable or hollow pipe 102 is pulled out from the lorry 108 and
Through the guide pulley 109 and vertically downward into the supply shaft 103. Below the guide pulley 109, an adhesive assembly material 11 is provided.
2 is placed on the platform 100.
At approximately the center of the container 111, an applicator device 113 is provided. The applicator device has two guides and an applicator roller 114. As the cable / hollow pipe 102 runs on the guide pulley 109, It passes between these rollers 114. As the cable / hollow pipe 102 is unwound,
They are covered with the assembly material 112 on the entire circumference, i.e. on both sides, at the applicator device 13 and the rollers 114 for the guide and applicator.

Preferably, the assembly material 112 is a two-component epoxy resin.

The cable / hollow pipe 102 covered in this way is
0, is carried along with the assembly hose 105, and is placed on the upper side of the assembly hose. The assembly hose 105 is guided for this purpose from the supply reel 104 by means of a first guide pulley 115 and a second set of guide pulleys 116 located at the end of the supply shaft 103, in particular the second guide pulley 116. Thereby, the assembly hose 105 is formed into a flat web where it joins the cable / hollow pipe 2.

The assembly hose 105 can be a silicone or rubber hose.

Next, at the end of the feed shaft 103, an assembly hose 105 carrying the cable and / or the hollow pipe 102 covered with the assembly material 112 is inserted into the pipe duct 101, and the assembly hose 105 is laid. Is pulled in the direction of arrow 117. To this end, the traction cable of the traction device (not shown in more detail) is fixed to the not-shown end of the assembly hose 105 and the assembly hose 105 is connected to another supply shaft connected to the pipe duct 101. You can pull up to 103.

As can be seen from FIG. 6, the carrier strip 1, for example in the form of a woven band
Nineteen batches of nineteen can be additionally placed in a container 111 of assembly material 112, which are impregnated with assembly material 112 and then guided by an applicator and guide rollers 114 to lay the Applied from both sides to the cable / hollow pipe 102 to be.

After the assembly hose 5 on which the cable / hollow pipe 102 and, if necessary, the additional carrier strip 119 is installed, is introduced into the pipe duct 101, the other supply shaft 103 (not shown) The end (not shown) is closed and separated from the supply reel 104 in the region of the supply shaft 103 shown in FIG. A pump device located on the lorry 108 is then connected to the interior of the assembly hose 105 to pump a fluid, preferably comprising air.

FIG. 7A shows an assembly hose 5 drawn into a pipe duct 101 and having a cable / hollow pipe 102 arranged thereon and two carrier strips 11.
9 and one of the carrier strips is an assembly hose 105.
And the cable / hollow pipe 102, and the other is the cable / hollow pipe 10
2 above. Starting from this position in FIG. 7A, air is supplied via pumping equipment to the interior of the assembly hose 105, so that the assembly hose is
Inflates as shown in B. As the assembly hose 105 expands, the carrier strip 119 is embedded in the assembly material 112 under pressure.
The cable / hollow pipe 102 disposed therebetween is pressed to the upper side of the pipe duct 101.

Next, the assembly hose 105 is connected as shown in FIG. 7B until the assembly material 112 has hardened and the cable / hollow pipe 102 has adhered to each other and to the wall of the pipe duct 101 at the upper arc. And keep it inflated. Heat or other radiation is applied to cure the assembly hose 12, depending on the type of assembly material used.

After a sufficient holding time for the assembly material 112 to solidify, pressure is removed from the interior of the assembly hose 105. The assembly hose 105 is released from the assembly material 112 by elastic contraction and can be removed again from the pipe duct 101 via the supply shaft 103. Thus the cable / hollow pipe 10
2 remain as shown in FIG. 7C. The cable / hollow pipe 102 is embedded in the carrier material 102 on the one hand and covered by an outer carrier strip 119 facing the inside of the duct 101 on the other hand.

The position where the cable / hollow pipe 102 is attached to the inner wall of the pipe duct can be predetermined, but is usually arranged in the upper semicircle of the duct cross section.

The assembly material, which is preferably a two-component epoxy resin, may be one that cures at room temperature.

However, the curing process can be accelerated with special assistance using heat, ie the curing time can be shortened. This can be done by heating the water or air, or by steam to expand the assembly hose 105.

As the carrier material for the adhesive, a mineral and / or synthetic textile layer and a woven and / or woven cloth can be used.

The assembly hose not only repairs and lines the pipe duct at the same time, but also serves as a reusable assembly aid, which can be removed again from the pipe duct after the adhesive has hardened.

[Brief description of the drawings]

FIG. 1A shows a cross-sectional view of a laid pipe duct with a tubular inner lining inserted therein in a folded state, on which a cable and / or hollow pipe has been previously mounted.

FIG. 1B shows the pipe duct of FIG. 1A with a tubular inner lining pressed against the inner wall.

FIG. 2 shows a diagram for explaining a method of laying a tubular inner lining as shown in FIGS. 1A and 1B.

3A, 3B show cross-sectional views of an laid pipe duct at two different stages when arranging the inner lining, which is initially introduced in a deformed state (FIG. 3A).

FIG. 4 shows the introduction of a pipe section as an internal lining by placing a hollow pipe or cable to be installed on top.

FIG. 4B shows a sectional view of the pipe duct of FIG. 4A with a pipe section laid.

FIG. 5 illustrates the construction of a communication network using the method according to the invention.

FIG. 6 shows an assembly process in the area of a supply shaft according to a second embodiment, in which the cables and / or hollow pipes to be laid are introduced together with the assembly hoses.

7A, 7B and 7C show cross-sectional views of the assembly hose and the pipe duct at the various laying stages of the hollow pipe and / or cable to be laid.

──────────────────────────────────────────────────続 き Continuation of the front page (31) Priority claim number 199 21 382.8 (32) Priority date May 10, 1999 (May 10, 1999) (33) Priority claim country Germany (DE) ( 81) Designated countries EP (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE), OA (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG), AP (GH, GM, KE, LS, MW, SD, SL, SZ, UG, ZW) , EA (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM), AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU , C , DE, DK, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM , TR, TT, UA, UG, US, UZ, VN, YU, ZW

Claims (47)

[Claims] Claims 1. To install at least one cable and / or hollow pipe in an existing laid pipe duct used for supply or disposal, more particularly in a sewer system or mains network. Wherein the cables and / or hollow pipes to be laid are introduced into the pipe duct and fixed to the wall, wherein a tubular or hose type internal lining is provided for the existing laid pipe duct. A method characterized in that it is pushed in and / or retracted, whereby at least one flexible hollow pipe and / or cable is arranged on the outer surface of the lining. 2. The cable and / or hollow pipe to be laid is covered with an adhesive assembly material, which is then embedded in a pipe duct with an assembly hose serving as a hose-type internal lining, The assembly hose is extended to push the cable and / or hollow pipe against the wall of the pipe duct and act on the assembly hose after a sufficient holding time for the cable and / or hollow pipe to adhere to the wall. 2. The method of claim 1, wherein the operating pressure is removed. 3. The method of claim 1, wherein a deformable hose is retracted as the inner lining. 4. The internal lining second hose is inserted into the hose by a pressurized medium and pressed against the inner wall of the pipe duct, where it is fixed irreversibly. the method of. 5. The method of claim 3, wherein said hose is impermeable to a fluid medium. 6. The method according to claim 3, wherein said hose is provided with pores. 7. The method according to claim 3, wherein said hose is made of a material having a textile structure. 8. The method according to claim 1, wherein an irreversibly deformable hose is drawn in as the inner lining. 9. The hose is drawn into a pipe duct, and a hose for lining the pipe duct is pressed against an inner wall of the pipe duct by filling with a gas medium or a fluid medium, and is irreversibly fixed to the inner wall. The method of claim 8, wherein 10. The method according to claim 1, wherein the hollow pipe and / or cable is attached to an outer surface of a tubular inner lining. 11. The method according to claim 10, wherein the hollow pipe and / or the cable are attached to an upper region of the outer surface. 12. The method according to claim 1, wherein a tubular or hose-type internal lining is used which comprises hollow pipes and / or cables integrated into the wall. 13. The method according to claim 1, wherein the hollow pipes and / or cables are fixed to the outer surface of a tubular or hose-type inner lining at least at some points along its length. . 14. To install said tubular or hose type internal lining, hollow pipes and / or cables are held in a ready state and then the tubular or hose type internal lining is drawn into the pipe duct. 2. The method according to claim 1, wherein the hollow pipe and / or the cable are installed on the hose. 15. The tubular or hose type internal lining,
A method according to claim 1, characterized in that a lining is used whose perimeter corresponds approximately to the perimeter of the pipe duct. 16. The method according to claim 1, wherein a woven hose is used as the hose. 17. The method according to claim 16, wherein a glass fiber hose is used as the woven hose. 18. The method according to claim 16, wherein a woven and / or knitted hose impregnated with a curable resin is used as the hose. 19. The method according to claim 18, wherein the outer and / or inner surface of the hose is covered with a tubular foil. 20. The method according to claim 17, wherein a resin that is cured by ultraviolet rays is used as the resin. 21. The method of claim 1, wherein the hose is drawn as a substantially flat web into each associated pipe duct. 22. The method of claim 1, wherein a data communication cable is routed as said cable. 23. The tubular or hose-type inner lining is formed by individual tubular sections which are connected to each other when transported into a pipe duct. The method according to claim 1, wherein 24. The method of claim 1, wherein the tubular inner lining is spirally wound from a material web as it is introduced into the pipe duct. 25. The tubular or hose type internal lining,
2. A plastic tube is used, the tubular wall section of which is introduced as a folded profile section into an existing pipe duct, and subsequently returned to its original tubular shape by internal pressure using a heating medium. the method of. 26. The tubular or hose type internal lining,
Plastic tubing is used, the tubular wall cross-section of which is mechanically reduced by tension extrusion before being introduced into the existing pipe duct, and which is relieved of tension by stretching after introduction. 2. The method according to claim 1, wherein the tubular section is returned to the tubular section. 27. After laying the hollow pipe and / or cable, both ends thereof are guided into a distributor or connector box mounted in an access area into the pipe duct associated therewith. The method of claim 1, wherein: 28. The method of claim 2, wherein the assembly hose is removed again from the pipe duct after the pressure has been removed. 29. The method according to claim 2, wherein the cable and / or the hollow pipe are covered with a two-component epoxy resin-based assembly material which can be cured at room temperature by a chemical reaction. 30. The method of claim 2, wherein the assembly material is cured by heat. 31. The method of claim 2, wherein said assembly material is reinforced by an insert layer. 32. The method according to claim 31, wherein the insert layer of mineral and / or synthetic material is introduced for reinforcement. 33. The method according to claim 31, wherein the insert layer is introduced in the form of a textile. 34. The method according to claim 31, wherein the insert layer is introduced in the form of a woven and / or knitted / and / or braided material. 35. The method according to claim 31, wherein the insert layer is introduced in the form of a felt. 36. The method according to claim 2, wherein the cables and / or hollow pipes are embedded in the assembly material on all sides. 37. The method according to claim 2, wherein the flat hose is introduced into the pipe duct as an assembly hose. 38. The method according to claim 37, wherein said flat hose can be formed from plastic or rubber. 39. The method of claim 37, wherein said flat hose is expandable about its circumference. 40. The method according to claim 2, wherein a separating layer is provided between the assembly hose and an adhesive and / or carrier material or an adhesive carrier material. 41. The method according to claim 40, wherein the separation layer is disposed in an assembly hose in the form of a web of material. 42. The method according to claim 41, wherein the web material is left in the pipe duct as a cover for cables and / or empty pipes. 43. The method of claim 41, wherein said separation layer is mechanically secured to an assembly hose. 44. The method according to claim 43, wherein the separation layer can be removed from the assembly hose again. 45. The method of claim 41, wherein said mechanical securing is performed using a touch-and-close band. 46. The method according to claim 42, wherein the separating layer is secured to the assembly hose in the form of a web of material using double-sided adhesive tape. 47. The method according to claim 28, wherein the adhesive tape is removed from the pipe duct after the assembly hose has been removed.