DE2843509A1 - METHOD OF LAYING A SHADOWED DRAINAGE PIPE FOR DRAINAGE OF THE SOIL AND DEVICE AND DRAINAGE PIPE FOR PERFORMING THE PROCEDURE - Google Patents

Description

PFENNING MAAS SEILER

-3-

MY

PATENT LAWYERS
BERLIN · MUNICH ■ AUGSBURG

Patent Attorneys · Kurfürstendamm 170 ■ D1000 Berlin 15

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LEMKE · Mockery

J-Pfenning, Dipl.-Ing. ■ Berlin Dr. I. Maas, Dipl.-Chem. · Munich

H. Seiler, Dipl.-Ing. · Berlin

K. H. Meinig, Dipl.-Phys. · Berlin

J. M. Lemke, Dipl.-Ing. Augsburg Dr. G. Spott, Dipl.-Chem. · Munich

OFFICE BERLIN:
Kurfürstendamm 170 D1000 Berlin 15

Phone:
030-8812008 / 8812009

Telegram address: Seilwehr patent

Berlin
Date

3 October 19 78

APLIX SA
75bis _f avenue Marceau, 75116 Paris, France

Method for laying a covered drainage pipe for Drainage of the soil and device and drainage pipe for carrying out the method

909616/0805

The invention relates to a method and a device for laying a covered drainage pipe for draining the ground. The covered drainage pipe consists of a pipe that forms the actual drainage pipe and is provided with openings, and one of this surrounding filter envelope to hold back solid components.

These covered drainage pipes simplify to a great extent the laying compared to the previously known techniques, in which it was necessary on the already in one Digging the ground, put a pipe in place to fill a bed of gravel or the like to serve as a filter. The trench was then closed. These old well-known techniques make heavy and voluminous transports are required, they destroy the soil and do not make working speeds satisfactory required and are expensive.

The invention is based on the object of avoiding these disadvantages, and a method and a device create a fast, simple and cost-saving production and processing of the covered drainage pipe allow the processing of the wrapped

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Drainage pipe adjacent to the site of embedding in the ground, preferably with the embedding Device itself can be done.

According to the invention, the solution to the problem consists in that the filter wrap is continuous around the tube to its complete covering with mutual overlap the longitudinal edges of the casing is applied, and that continuously between the overlapping casing edges before they are laid one on top of the other, a band-like catching organ is introduced which is provided with hook elements that are secure and penetrate intimately into the structure of the filter envelope.

When the drainage pipes at the manufacturing site of the pipes are wrapped, they are delivered to the installation site in rings of several tens of meters in length. Here the rings are received on a device equipped with a plow that opens the soil, in it that the covered drainage pipe continuously and then immediately closes the bottom again.

This known laying method has various disadvantages. The previously covered drainage pipe is voluminous and therefore presents transport problems, the filter cover itself is

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brittle and becomes light because of the manipulations required damaged or destroyed, causing entrainment or Clogging can occur in the embedding device. The known method also carries the risk of partial Spillage or silting up of the envelope of the Pipe through mud or the like that has been heaped up at the work site. The envelope easily absorbs moisture and water, making the drainage pipe considerably heavier. If the drainage pipe is wrapped in certain zones is not required or desired, the special provision of a bare drainage pipe is required, or part of the envelope must be removed.

The invention has the further advantage that the drainage pipe is wrapped immediately before it is laid, where a processing of separate supplies of the pipe held on easily movable rollers or reels, the sheath and the catching organ takes place through the drainage pipe, which is already covered, without the need for special drive devices for which rolls or reels are required.

The invention also shows a special type of construction of the covered drainage pipe.

909816 / 080S

The cover consists of a fibrous, plush-like one or material provided with open cells and is held around the tube by a band-shaped catching element which is provided with hook-shaped elements which penetrate into the structure of the overlapping parts of the shell.

The hook-shaped elements are preferably received on at least one side of a band.

In the case of a flattened belt, the hook-shaped elements are on the two opposite surfaces of the belt arranged. The band can also be twisted to form a spiral tube, the turns of which are attached to one another may or may not be in contact with one another; in this case the hook-shaped elements are only on one Located face of the belt which forms the outer surface of the tube; The spiral tape can be used for laying be flattened.

Further features of the invention emerge from the subclaims.

The accompanying drawings show illustrative embodiments of the invention, _f and it means:

90 9.816 / 0805

Fig. 1 is a schematic side view, partly in section, showing the process shows the laying and the device used to carry it out;

FIG. 2 is a plan view according to FIG. 1;

3 shows a section through a drainage pipe provided with the cover and embedded in the ground is;

4 shows a vertical longitudinal section of the drainage pipe according to FIG. 3;

Fig. 5

and 6 two partial cross-sections through the drainage pipe on an enlarged scale, which show the closure of the filter envelope by the catching organ;

7 shows an exploded view according to FIGS. 5 and 6, showing the structure of the catching element shows;

909816/0805

8th -45--
- yr- and the Fig. a variant of the structure and 9 Arrangement of the tether; of around- Fig. a detail of manufacture covered drainage pipe,

The following description refers to a flexible drainage pipe; however, the invention can be used in the same Find wise application when using a rigid or semi-rigid drainage pipe.

The device shown schematically in FIGS. 1 and 2 has, in a known manner, a chassis 2, caterpillars 3 or the like, an engine and an unillustrated driver's seat.

Also in a known manner has the device for plowing under the covered drainage pipe 4 in the Bottom 5 on its back a plow-like organ 6, which has an inlet channel with a vertical axis and a plow iron 8 with a ploughshare 9 that rearward is open and digs an underground cable trench. The plow iron 8 is bulged to form an inner channel to form, in which the inlet channel 7 opens.

909816 / 080S

The jacketed drainage pipe 4 runs one after the other in the Inlet channel 7, the ploughshare 8 and the ploughshare 9 and exits from this axially in its lower region and is deposited in the ditch.

The jacketed drainage pipe 4 consists of a perforations 11 at least in its upper area Tube 5 and an outer filter wrapper 12 made of a fibrous, plusch-like, with open cells or like provided material. The casing can be made from natural fibers, for example from stalks of rye, flax or oafers, made from coconut fibers or from wood chips, from natural ones mixed materials, for example wood shavings and straw, or made of artificial fibers such as glass wool, Polyester fibers and the like are made. The jacketed pipe 4 is produced on the device 1 itself, starting out from a supply 13 of the tube Io and a supply of the filtering material 12.

The supply 13 of the tube 10 consists of two coils or Rolls 15, 16, the roll 16 being ready to replace the unwound roll 15. The roles 15, are arranged to be easily movable on a reel, not shown, in order to unwind freely to the extent in which

909816/0805

the drainage pipe 4 is laid.

The supply 14 of the filtering material 12 forms a roller 17, which is also easily movable on a non shown reel is received to unwind as the filtering material 12 is consumed will. The coil 17 receives the filtering material 12 lying flat.

The filtering material is preferably applied to the drainage pipe 10 in such a way that it surrounds it Sheath which has a longitudinal closure in the upper part of the covered drainage pipe 4. the Arrangement of the closure in the upper part allows easy access to the drainage pipe 4 afterwards Laying and excludes soiling of the lock.

To apply the filtering material around the envelope, a guide sleeve 18 is provided, which transversely and is directed axially to the drainage pipe 10 and the filtering material and continuously varies in its profile between a flat lower inlet end 19 and a tubular outlet end 20.

909 816/0805

The width of the inlet end 19 corresponds to the width of the filtering material 12, and the inner diameter of the outlet end 20 corresponds to the outer diameter of the covered drainage pipe 4. The guide grommet 18 is like this designed so that the two longitudinal edges of the filtering material overlap in the ohuren area of the drainage pipe 10.

The alignment of the spools or reels 15, 16, 17 and the guide grommet 18 is such that the drainage pipe 10
between its supply 13 and the inlet channel 7 follows a path which preferably lies in the same vertical plane, this plane being able to extend either obliquely or parallel to the direction of travel of the device 1 as shown in FIG.

In order to unite the filtering sheath 12 around the tube, a band-like catching element 21 is used, which extends in the longitudinal direction is provided with hook elements 22, 23 which penetrate the structure of the filtering material to the to close filtering sheath 12 with itself.

A preferred embodiment is shown in FIGS shown.

90981Θ / 0805

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Between the overlapping longitudinal edges of the filter envelope 12, a tether 21 is parallel to the axis of the Arranged tube 10, which carries hook-shaped elements 22 and 23 on its two surfaces, which with the two Engage longitudinal edges of the filtering material 5 and 6 show in an enlarged cross section the overlap of the two longitudinal edges of the filtering Cover 12 and its interaction with the tether 21,

According to FIG. 5, the tether 21 carries a plurality of hook-shaped elements 22 in the form of on each surface at their end reinforced pins, which are connected to the stalks, fibers, cells or the like of the two edges anchor the filtering sheath 12 and form a good attachment that can still be separated.

Fig. 6 shows a variant in which the hook-shaped Elements 23 of the band 21 consist of pins which form a barb at their end, which in the same way engages in the structure of the two edges of the filtering envelope 12.

Irrespective of the design of the hook-shaped elements 22, 23, the limiting strap 21 is preferably as in FIG. 7

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shown, designed. The hook-shaped elements 22 or

23 of each surface are firmly attached to a flexible fastener

24 added; the two fastener tapes 24 have the same length and are in their longitudinal center line 25 with each other for example connected by sewing. The closure formed by these bands 21 and 24 has an essential higher anchoring force in the closing plane than perpendicular to it, especially in the case of a pelagic effect The arrangement according to FIG. 7 avoids the occurrence of this effect, since when the closure is loaded in the sense of Separation the straps 24 spread in the position shown in Fig. So that the closure is loaded in the direction in which it offers the greatest resistance.

On the device 1, a supply 27 of the tether 21 is provided in the form of a spool 28, which is easily on a The reel, not shown, is rotatable about an axis parallel to the axes of the reels 15 to 17, the reel 28 is opposite the coil 17 of the filtering material 12 to the drainage pipe 4 which has not yet been sheathed arranged, that is, it is located above the bare tube 10 entering the guide grommet 18, the end of the tether 21 is first placed by hand between the two

909816 / 080S

Longitudinal edges of the filtering material introduced when they begin to overlap in the guide tube 18 to lay; the coil 28 unwinds slightly under the action of the tether 21 which is being pulled off.

Fig. 8 shows a variant of the use of the tether. In this variant, a tether 26 carries the hook-shaped Elements 26a only on a single surface; before it is installed, the tether 26 is given a tubular shape by spiral winding, the spirals either butting or not butting. If necessary, it is then flattened to become an anchoring organ to form, which carries the hook-shaped elements on its two surfaces. Behind in the running direction the guide spout 18 is preferably a loose roller 29 arranged on the connection point of the filtering Material exerts a pressure to the hook-shaped elements of the tether 21 intimately with the structure of the filtering Sheath 12 to connect. The connection between the tether and the filtering material is still in progress considerably increased by the bending movements occurring in different directions that affect the encased drainage pipe 4 are issued when it enters the plow 6 and when it passes through and leaves it. Through this

909 816/0805

the filtering casing is closed tightly held on the drainage pipe 10 to the embedding of the drainage pipe 4. The drainage pipe lO _f the filtering material 12 and 21 from their FanBand J.osen rollers accessed by the driving movement of the device 1 and the embedding of the In operation sheathed tube 4. In the direction of travel in front of the coils 17 and 28, a device 30, shown schematically, is arranged for joining pipes IO when an empty reel 15 or 16 passes over to another full reel Use a cuff or other suitable means butted together.

The attachment of the end of a coil of filtering material to the beginning of a following full reel can be done by using a cut piece of the tether, which is arranged transversely between the two overlapping ends before entry into the guide grommet 18. In in the same way, two tethers are joined together using a small, severed piece of the filtering material 12. In the running direction behind the pressure roller 29, another is shown schematically Device 31 arranged for the separation of the jacketed drainage pipe 4 and for the assembly of special equipment,

909816/0805

for example a connector, for receiving an auxiliary drainage pipe or a closure member.

According to FIG. 2, the plow-like organ 6 is fastened in the axis of the device 1 behind the caterpillars 3, and the device according to the invention is on a lateral Platform 32 is arranged, which is carried by the prime mover.

In a modified embodiment, the platform 32 also to an auxiliary machine connected to machine 1 be arranged, which can be moved to the side of the machine 1. The drainage pipe 4 then runs in a vertical plane inclined to the median longitudinal plane of the machine.

Instead of an axially directed closure of the filtering material 12, it is also possible to use the Produce filtering sheath by helical wrapping, with the tether itself also runs helically and is continuously arranged between the edges of the overlapping spirals In the case of a rigid or semi-rigid drainage pipe 10, the supply consists of a bundle of separate pipe parts which Butt to butt for the purpose of sheathing against one another.

909816/0805

The path of the jacketed drainage pipe 4 on the machine is then much less sinusoidal than is shown in the exemplary embodiment.

As part of a modification, the drainage pipe can also be placed on a stationary device adjacent to the installation point are processed.

9 shows a further modification in which the hook-shaped elements are provided on both surfaces Tether 21 is initially arranged close to one edge of the filtering material 12 in front of the device for Assembly. The tether is placed on the front face before it is joined to the other edge during assembly intervenes. The filtering sheath 12 is in a flat position between a support member 33 and an elastic)! Blade 34 passed through, which presses the filtering material 12 against the organ 33 with a clamping effect. The blade 34 is fastened at 35 on a carrier 36, for example by screwing. There is a fixed one in front of the clamping zone Tube 37 arranged with a rectangular cross section, which is traversed by the tether 21 and the tether controls at the entrance to the clamping zone. In the clamping zone, the tether 21 is pushed by the blade 34 against the filtering Pressed on material on which it is caught.

909816/0805

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At the entrance of the device to the sheathing, the filtering material 12 thus the firmly arranged tether 21, which ensures that in the Assembling the envelope a very good positioning of the limiting strap 21 is guaranteed.

The lower edge 38 of the blade 34 advantageously forms a supporting edge for cutting off the filtering Material 12 and the tether 21 by hand using a suitable cutting device when the delivery of the filtering material should be interrupted. To interrupt this delivery it is enough to lightly the blade changing and pulling the filtering material by hand, loosening the blade and pulling by hand continue up to the connecting device,

Ss can not be shown devices for holding of the filtering material can be provided in the clamping zone.

The one advantage of the invention is that the Tube 12, the filtering material and the tether do not require any movable devices for their unwinding, what is of particular importance when processing at the installation site,

9098 16/0805

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Another advantage is that the tether anchors itself to the filtering material. A Another advantage is that the closing connection of the filtering material with itself is continuous occurs, eliminating any intrusion of solid materials such as gravel, stones, roots and the like between the two overlapping edges is prevented.

It is also advantageous that the closure can be separated so that it is possible, for example during an inspection to open and close the filtering envelope without the need for additional tools. Another Another advantage is that the envelope can easily be interrupted by removing the filtering material Cover and the tether, the cover can be taken up again at any time without the device to shut down for a long time.

The invention makes it possible to continuously produce a covered drainage pipe, the supplies automatically are handled within the framework of the laying, the inventive method and the device allows a increased working speed, which in any case is higher than the maximum speed with which the ground is opened and can be closed again after relocation.

909816/0805

Claims (26)

EXPECTATIONS , l.J Procedure for laying a covered drainage pipe for draining the soil, in which the covered pipe consists of an inner pipe provided with openings and consists of a filtering envelope enclosing it, characterized that the filtering envelope progressively onto the inner tube, this completely is applied enclosing with the overlap of their longitudinal edges, and that between the overlap the edges of the filtering envelope progressively a band-shaped, with hook-shaped elements provided catch member is introduced such that the hook-shaped elements tightly closing the envelope while penetrating the structure of the overlapping edges. 2. The method according to claim 1, characterized in that that the filtering sheath is wound helically around the inner tube. 3. The method according to claim 1, characterized in that the filtering envelope in such a way on the inner tube 09816/0005 is applied that their overlapping edges extend in the axial direction of the inner tube. 4. The method according to any one of claims 1 to 3, characterized in that the band-shaped catching organ initially one of its surfaces is attached to one longitudinal edge of the filtering envelope parallel to it, and that then the other longitudinal edge of the filtering envelope by overlapping with the other surface the tether is engaged, 5. The method according to any one of claims 1 to 4, characterized characterized in that the casing of the drainage pipe takes place adjacent to the location of its embedding. 6. The method according to claim 5, characterized in that that the inner tube is enveloped on an embedding device, and that the inner tube, the filtering one Sheath and the band-shaped catching organ continuously from separate unrollable supplies of the embedding device can be removed. 7. Veffahren according to Claim, characterized in that that the unrolling of the supplies takes place automatically in the course of the embedding of the encased pipe. 909816 / 08OS 8. Device for performing the method according to claims 1 to 7, characterized in that that the device (1) has a delivery device (13) receiving the inner tube (10), and a sheath (12) in a flat position receiving delivery device (14), one receiving the band-shaped catching element (21) Delivery device (27), a unit that unites the inner tube (10), the envelope (12) and the catching element (21), the flat sheath (12) folds around the inner tube (10) with overlapping of its longitudinal edges, the catching organ (21) between the longitudinal edges of the sheath (12) has guide grommet (18) and on its rear At the end of a serving to form a trench, the covered drainage pipe (4) receiving and on the Has the bottom of the plow-like organ (6) which stores it. 9. Apparatus according to claim 8, characterized in that that the delivery devices (13,14,27) consist of freely rotatable rollers (15,17,28), 10. The device according to claim 9, characterized in that that the delivery device (13) has two axially juxtaposed rollers (15, 16). 909816/0808 11, device according to one of claims 8 to 10, characterized in that on the plow-like organ (6) one of the introduction of the jacketed pipe (4) in the plow member (6) serving vertical inlet channel (7) is attached. 12. The device according to claim 8 to 11, characterized in that that the supply rolls (15,17,28) and the guide sleeve (7) in a common vertical Are arranged lying flat. 13. Device according to one of claims 8 to 12, characterized in that the filtering Sheath (12) in a flat position receiving roller (17) below and receiving the catching element (21) Roller (28) are arranged above the inner tube (12), 14, device according to one of claims 8 to 13, characterized in that the guide sleeve (18) a lower plane, which serves to accommodate the planar guide sleeve and is arranged transversely to the latter Has guide plate (19), to which a conically tapering pipe part is connected, which on his End (20) one the outer diameter of the sheathed 909816/0805 28 / .3509 Tube (4) has a corresponding inner diameter. 15. Device according to one of claims 8 to 14, characterized in that in the running direction of the jacket th tube (4) behind the guide grommet (18) an upper, the overlapped longitudinal edges of the shell (12) and the catching element (21) is arranged in pressure engagement with the roller (29) which brings the inner tube (10), 16. Device according to one of claims 8 to 15, characterized in that the catching element (21) consists of two in its longitudinal center line, for example by sewing interconnected tapes (24), whose Outer surfaces are provided with hook-shaped elements (22, 23) which penetrate the longitudinal edges of the casing (12) are. 17. Device according to one of claims 8 to 16, characterized in that in the direction of travel in front of the Guide sleeve (18) is an organ that secures the catching element (21) on one longitudinal edge of the casing (12) (33,34) is provided. 909816/0805 18. The device according to claim 17, characterized in that that the fastening element consists of a support beam (33) and a blade (34) resting against it under pressure consists, and that the support beam (33) and the blade (34J) the flat sheath (12) and the catching element (21) between to record oneself, 19. The device according to claim 17 and 18 , characterized in that the lower free edge (38) of the blade (34) serves as a guide edge for a cutting element separating the sheath (12) and the catching element (21), 20. Apparatus according to claim 17 to 19, characterized in that that in the direction of travel in front of the blade (34) is used for the exact guidance of the catching element (21) Tube (37) is arranged. 21. Device according to one of claims 9 to 20, characterized characterized in that on the device (1) one of the devices serving for delivery and sheathing receiving platform (32) is arranged. 22. Device according to one of claims 19 to 21, characterized characterized in that on the platform (32) between the delivery device (15) and the delivery devices (14,2f7) 909816 / OS06 2843503 a device (30) for attaching a new inner tube (10) is arranged. 23. Device according to one of claims 9 to 22, characterized in that on the platform in the running direction behind the pressure roller (29) a device serving to separate the casing (12) and the catching organ (21) (31) is provided, 24. Tube for carrying out the method, characterized in that the sheath (12) consists of a fibrous, plush-like or provided with open cells layer, which means around the inner tube (10) one with its hook-like projections (22,23) in the material of the overlapping edges of the Sheath (12) penetrating catching organ (21) is fixed in itself. 25. Tube according to claim 24, characterized in that the hook-like elements (22,23) on both sides of the catching organ (21) are arranged. 26. Tube according to claim 24, characterized in that the catching element (21) on one side with a hook-shaped Elements (22) 23) is equipped and wound in helical form around the inner tube (10) and optionally 909S1 β / 0805 is then flattened, wherein the hook-shaped elements (22,23) are directed outwards. 909816 / 0Θ06