EP3686366A1 - Drain pipe arrangement - Google Patents

Abstract

The invention relates to a drain line arrangement on a building in the surrounding underground (U) with an essentially horizontal drain pipe (1) in the deeper underground (U) and an essentially vertical feed line (2) to the horizontal drain pipe (1), with the vertical feed line (2) and the horizontal drain pipe (1) a long socket connection is provided in the vertically oriented conduit, characterized in that the building (G) has a base plate and / or foundation (F), the vertical feed line (2) being connected to a pipe clamp ( 26) is anchored to the base plate and / or to the foundation (F).

Description

The invention relates to a drain pipe arrangement on a building in the surrounding underground with an essentially horizontal drain pipe in the deeper underground and an essentially vertical feed line to the horizontal drain pipe, a long-sleeve connection being provided in the vertically oriented line path between the vertical feed line and the horizontal drain pipe.

Basically, drain line arrangements on buildings for the discharge of waste water and / or surface / rainwater are known. The wastewater or surface water is fed into the vertical supply line via suitable connections and thus to the horizontal drain pipe located in the deeper underground. There is a connection between a vertical feed line and a horizontal drain pipe using a bend, often 90 ° / 87 ° bend, or also composed of several bend parts (2 x 45 °). The essentially horizontal drain pipe leads to the sewer system with a suitable slight slope, usually via a transfer / inspection shaft.

However, it is disadvantageous that the horizontal drain pipe located in the deeper underground is subject to larger settlements compared to the building, in particular in buildings based on foundation piles. Accordingly, there is a risk that at the transition between the essentially vertical supply line on the building to the essentially horizontal drain pipe, the pipe connection will be separated by the horizontal drain pipe sagging. A first consequence would be improper routing of the liquid discharged in the drain line arrangement. It can also cause rinsing and major damage to the building to lead. Sands can also be flushed into the drain pipe and the pipe clogged.

Because of these settlements and the problems arising from them, the known drain line arrangements have to be checked more frequently and, if settled accordingly, the problems have to be remedied by digging up and repositioning the pipelines. This means a regular inspection effort and, if an excessive reduction amount is found, a considerable investment with a correspondingly severe impairment of the environment by the excavation work.

The drain line arrangement described at the outset is from the DE 34 16 425 C1 known as a rainwater downpipe with a long sleeve design to compensate for settlement phenomena.

Furthermore, from the DE 20 2013 004 470 U1 a flexible connecting elbow between the downpipe and the main pipe is known, which is to compensate for pressure and train loads on the connected pipes and to prevent loosening of pipe connections.

From the DE 1 869 609 U a telescopically displaceable pipe system for discharging liquid waste materials is known, in which a preferably vertically extending central piece can be displaced axially to one another in the manner of a long sleeve over an overlap area. Here, too, settling phenomena and thus excessive stresses on a sewage pipe when crossing a foundation into the ground are to be avoided.

From the DE 198 11 709 A1 is known a standpipe for a pipe run leading to a precipitation, in the upper end of which a downpipe engages and the lower end opens into a base pipe, the standpipe having an inner pipe encompassing the downpipe and a jacket pipe which at least encloses the upper height area of the inner pipe on the outside. This in turn is a telescopic long sleeve. Here, however, is that Attention focused on the easy connectivity of a rainwater standpipe with a standard underground pipe.

Furthermore describes the EP 1 698 741 A2 a standpipe for connecting a downpipe to a sewer connection pipe, which has a socket section with a predetermined inside diameter, the standpipe having two connection ends and a normal pipe section between the connection ends, the outside diameter of the normal pipe section of the standpipe being smaller than the inside diameter of the socket section, the standpipe at one connection end has a plug-in adapter section which is formed in one piece with the normal pipe section and which has an enlarged outer diameter compared to the outer diameter of the normal pipe section, the enlarged outer diameter approximately corresponding to the inner diameter of the socket section of the duct connection pipe or being only slightly smaller, so that a direct plug connection is established between the standpipe and the sewer connection pipe, the standpipe with its plug adapter section fits into the Muffena section of the sewer connection pipe can be inserted.

The describes further DE 889 250 B a closing sleeve that can compensate for pipe string expansions or building settlements as a telescopic sleeve.

A number of arrangements are therefore known which are intended to compensate for building settlements at the transition from sewage or rainwater downpipes to horizontal drain pipes. The compensation takes place via appropriate long sleeve connections.

The object of the invention is based on an arrangement according to the DE 34 16 425 C1 specify a drain line arrangement in which the relative movements that may occur due to settlement between a building and the surrounding subsurface are only permitted in the area of the long socket connection.

This object is achieved in that the building has a floor slab and / or foundation, the vertical feed line being anchored to the floor slab and / or the foundation with a pipe clamp. The vertical supply line is thus anchored to the base plate and / or the foundation with a preferably rustproof pipe clamp, so that the vertical supply line, which should follow the same settlement movements as the building or its base plate or foundation, is additionally mechanically attached to the base plate or the Foundation is connected. Accordingly, the movement difference between the slight settlement of the entire building with the significantly stronger settlement of the horizontal drain pipe is completely directed to the transition between the horizontal drain pipe and the vertically oriented pipe path in the form of the long sleeve.

Due to the fact that the building has a floor slab, in or under which a horizontal feed line is arranged, which opens into the vertical feed line via a T-piece, the drain line arrangement serves to discharge waste water occurring in the building. By providing a T-piece in the vertical supply line, access from the surface to this vertical supply line can be retained as an inspection line. Accordingly, the possible relative movement in the transition between the vertical supply line and the horizontal drain pipe on the long socket can be seen via the inspection line in the form of the vertical supply line and the T-piece.

In a further embodiment, the T-piece with the section led downward forms the inner part of the long sleeve connection and a 90 ° bend or two 45 ° bends for the transition into the horizontal drain pipe with its section led upwards the outer part of the long sleeve connection, namely a long sleeve. This ensures that relative movements between the horizontal supply line connected to the T-piece, for example the sewage line, are prevented the building, and the horizontal drain pipe in the deeper underground can only be received via the long sleeve formed from these two components. The relative movements that occur with different settling behavior between the horizontal drain pipe and the part of the drain pipe arrangement above it are thus permitted in the area of this long socket, thus avoiding stresses and bending moments in the drain guide arrangement.

The T-piece is preferably a pipe connection with two sleeves and a spigot end, the spigot end being elongated and forming the inner part of the long sleeve connection.

If a control rod is slidably held in brackets or guides in the vertical supply line in the vertical longitudinal direction and is anchored to the horizontal drain pipe, any settling movements that occur can be easily checked using the control rod.

In one embodiment, the control rod can be slidably mounted in a protective tube attached to the vertical feed line. This ensures that the control rod is free to move and move, especially when the control rod is mounted on the outside of the vertical feed line, since the protective tube keeps the ground load away. The protective tube should go to the surface and be closed with a cap. If necessary, the cap can be opened and the position of the control rod (upper end of the control rod) can be checked. Alternatively, it is possible for the control rod to be slidably mounted in brackets attached to the vertical feed line.

Characterized in that the control rod extends with its upper end to the surface or inspection opening, with the upper end of the control rod by the overlap dimension of the long sleeve above the uppermost one in the initial installation state with the long sleeve connection completely pushed together If the bracket protrudes, the auditor can quickly see whether the overlap in the long sleeve is still sufficient to maintain a secure fluid connection without leakage from the vertical feed line into the horizontal drain pipe. If the control rod slips out of the uppermost bracket, the auditor can see that the sagged horizontal drain pipe is no longer properly connected to the vertical feed line and earthworks are consequently required to expose the horizontal drain pipe in order to readjust a long sleeve with sufficient overlap for to be able to create a next period of use.

If the vertical feed line consists of several straight pipe sections which can be connected to one another via push-in sockets, the control rod being designed to be correspondingly extendable and in the vertical feed line at least one holder for the control rod being arranged in each section, the vertical feed line can be of the desired length , in particular to the surface as an inspection pipe or as a rainwater pipe.

By providing this arrangement, the checking intervals can be lengthened and significantly larger settlement movements can be compensated or bridged. The long sleeve connection has an overlap dimension of 10 cm to 100 cm, in particular 20 cm to 50 cm.

If the vertical supply line is a rainwater line or an inspection line, either rainwater, for example from the rainwater downpipe, can be fed directly into the drain line arrangement. Alternatively, the vertical supply line is available as an inspection line, which can be accessed from the surface of the surrounding area, for example by removing a cover. The drain pipes connected to it can then be easily checked from the top of the site.

Two exemplary embodiments of the invention are described in detail below with reference to the accompanying drawings.

Fig. 1

eine Abflussleitungsanordnung in einer Schnittdarstellung durch den Untergrund in einer ersten Ausführungsform und

Fig. 2

eine Abflussleitungsanordnung in einer räumlichen Darstellung in einer zweiten Ausführungsform.

In it show:

Fig. 1

a drain line arrangement in a sectional view through the underground in a first embodiment and

Fig. 2

a drain line arrangement in a spatial representation in a second embodiment.

In Figure 1 a first exemplary embodiment of a drain line arrangement is shown in a sectional view through the relevant underground U in which the drain line arrangement is arranged. The surrounding subsoil consists of a stable soil U _t , namely inorganic soil such as sand, gravel etc. and a non-stable soil or subsoil U _n , which consists in particular of organic material such as humus, peat, silt or brown coal.

In the first exemplary embodiment shown here, a building G with a base plate or foundation F is shown. The floor slab F is loaded on the load-bearing floor U _t via foundation piles P, so that the building G is largely free of subsidence. The drain line arrangement according to the invention is arranged in the area of the unsustainable subsurface U _n .

In the deeper underground, but in the area of the unsustainable subsurface U _{n, the} drain line arrangement has an essentially horizontal drain pipe 1 and an essentially vertical feed line 2, which directs water to be drained, for example waste water from building G, to the horizontal drain pipe 1. A 90 ° or 87 ° bend 11 is arranged between the vertical feed line 2 and the horizontal drain pipe 1. The bend 11 has an upward-pointing sleeve in the form of a long sleeve 12 from 20 cm to 50 cm, for example 40 cm in length. The other end of the bend 11 is designed as a normal tip end 13 and is inserted into a standard sleeve of a straight pipe section 10 of the horizontal drain pipe 1.

In the long sleeve 12 of the bend 11, the vertical feed line 2 is inserted with a long tip end 22. The lower element of the vertical feed line 2 in the exemplary embodiment shown here is a branch or T-piece 21, the end of which points downward is designed as a long tip end 22. Furthermore, the T-piece 21 has a first connection sleeve 23 in a straight extension of the long tip end 22, into which a revision or rainwater pipe 25 is inserted, and a second connection sleeve 24, which is oriented essentially horizontally and for connecting a horizontal feed line 3 for waste water from building G. Accordingly, a tip end 31 of a sewage pipe 30 leads into this second connection sleeve 24 of the T-piece 21.

A control rod 4 is slidably held in brackets 42 in the vertical feed line 2. However, the lower end of the control rod 4 is firmly anchored to the horizontal drain pipe 1, here directly on the bend 11, with a fastening 41. The control rod 4 has a length adapted to the installation situation, so that its upper end 40 ends close to the surface O in the inspection tube 25. Preferably, the upper end 40 of the control rod 4 is aligned so far above the uppermost holder 42 so that the protrusion of the control rod 4 between this uppermost holder 42 and the upper end 40 is the maximum extension of the long sleeve connection, consisting of the long sleeve 12 of the bend 11 and the long tip end 22 of the T-piece 21 corresponds.

The mode of operation of the drain line arrangement with the control options is described below.

If a building G has been created correspondingly via foundation piles P in a stable underground U _t or to connect a sewage pipe 30 of a horizontal feed line 3 from this building G or its base plate F (sewage outlet house) to the lower-lying sewer system at an existing building G of this type is the described drain line arrangement consisting of the vertical feed line 2, namely T-piece 21 with inspection tube 25 connected above it, with its downward-pointing long tip end 22 being guided into a horizontal drain tube 1 via a corresponding long sleeve 12 of the bend 11. The horizontal drain pipe 1 is arranged in such a way that the long sleeve connection, consisting of the long sleeve 12 of the elbow 11 and the long spigot 22 of the T-piece 21, is installed in the fully pushed-together state in order to ensure a maximum overlap dimension for the following, as long as possible period of use .

The vertical feed line 2 is fixed to the base plate and / or the foundation F with a rustproof pipe clamp 26. The pipe clamp 26 is preferably screwed directly onto the T-piece 21, so that the entire vertical feed line 2, including the long tip end 22, belongs to the system of the building with load transfer via foundation piles P. In contrast, the horizontal drain pipe 1, consisting of any straight pipe sections 10 and the elbow 11, with the long sleeve 12 belonging to the long sleeve connection is only embedded in the unsustainable subsurface U _n and is therefore subject to clear settlements, such as those known for bog soils (organic substances) are. The horizontal drain pipe 1 then leads to the corresponding sewer system, which is exposed to the same or similar settlement behavior.

In the course of the years of use, the horizontal drain pipe 1 will settle significantly more than the building G with base plate / foundation F. Thus, the horizontal drain pipe 1 with elbow 11 and long sleeve 12 will be relative to the vertical feed line 2 with T-piece 21 and long spigot end 22, which is received in the long sleeve 12, sag and the long sleeve connection telescope. According to the selected overlap dimension of 10 cm to 100 cm, in particular 20 cm to 50 cm or, as in the exemplary embodiment shown here, of 40 cm, a settlement difference chosen in this way can be accommodated by the long sleeve without the sealed fluid connection from the vertical supply line 2 in the horizontal drain pipe 1 loosens and can lead to the disadvantages mentioned at the beginning, namely flushing the building, sanding down the drain pipe or other impairments.

In order to provide an easy means of controlling the settlement movements, the control rod 4 is slidably guided within the vertical feed line 2. Depending on the installation depth of the horizontal drain pipe 1, the brackets 42 are to be provided at regular intervals, for example once or twice per meter. E.g. The brackets 42 can consist of eyelets / screws 42, which are anchored in corresponding bores in the inspection tube 25, which is preferably designed as a plastic tube, and displaceably receive the control rod 4 in the eyelet 42. The lower end of the control rod 4 is, however, firmly anchored in the elbow 11 of the horizontal drain pipe 1 by means of fastening 41. When the horizontal drain pipe 1 settles, the control rod 4 is thus pulled further down relative to the vertical feed line 2. During checks, it can thus be seen directly in the inspection pipe 25 that the horizontal drain pipe 1 has been set by a certain amount to be read. The uppermost holder 42 of the control rod 4 in comparison to the upper end 40 of the control rod 4 can be used as a yardstick for a maximum permitted settlement movement.

In Figure 2 A second embodiment of the drain line arrangement is shown in a spatial view. In Fig. 2 are identical or similar components according to the embodiment according to Fig. 1 designated with the same reference numerals. In contrast to Fig. 1 is in Fig. 2 a building with its base plate or foundation not shown.

In Figure 2 only part of the horizontal drain pipe 1 is the bend 11, here shown in the form of two 45 ° bends with its upstream long sleeve 12. In this long sleeve 12, which belongs to the horizontal drain pipe 1 (not shown here), as in the exemplary embodiment according to FIG Fig. 1 the long tip end 22 of a T-piece 21 inserted from the vertical feed line 2. A rainwater downpipe or inspection pipe, not shown here, is inserted into the first connecting sleeve 23 of the T-piece 21, which is shown here and which at least leads to the surface of the earth and, in the case of an inspection pipe, is closed there with a cap. A horizontal feed line (not shown here) in the form of a sewage pipe is connected to the second connecting sleeve 24. This line comes from a building, for example guided in the floor slab or the foundation.

In contrast to the first embodiment according to Fig. 1 is in accordance with the second embodiment Fig. 2 the control rod 4 is not arranged within the vertical feed line 2, but instead is fastened or guided on the outside, thus preventing the flow path from being attached and / or clogged to the control rod 4 and its holders 42. As in the exemplary embodiment according to Fig. 1 the control rod 4 is firmly connected at its lower end to the elbow 11 or the long sleeve 12 on the fastening 41. In the exemplary embodiment shown here, this is carried out with a lower pipe clamp 44.

In the exemplary embodiment shown here, the control rod 4 is designed as an inner tube in a protective tube 43. The protective tube 43 is fastened by means of upper pipe clips 45 (two pieces shown here) to the vertical feed line 2, for example to the T-piece 21 on its first connecting sleeve 23 and below the second connecting sleeve 24 at the upper end of the long tip end 22. The control rod 4 is slidably received in the protective tube 43.

If the horizontal drain pipe 1 and thus also the elbow 11 and the long sleeve 12 should therefore settle over the next few years of use in comparison to the building, in particular here the T-piece 21 or the vertical feed line 2, the control rod 4 will move over lower pipe clamp 44 moved within the protective tube 43. Since the protective tube 43 extends to the surface of the earth and is preferably closed there with a cap, this cap can be removed for revision and the amount of settlement can be measured at the offset between the upper end of the control rod 40 and the upper end of the protective tube 43.

When this drain line arrangement is installed, the upper end 40 of the control rod 4 is flush with the upper end of the protective tube 43. In the course of settlement, the control rod and thus its upper end 40 will slowly sink into the protective tube 43. If the maximum permissible reduction amount corresponding to the length of the formation of the long sleeve (long spigot end 22) to the long sleeve 12 is reached or exceeded, a separation between the vertical supply line and the horizontal drain pipe and thus an uncontrolled drainage of wastewater / rainwater into the subsurface must be avoided to expose this transition and re-pipe it. Up to this point of time, however, a safe drainage of the wastewater or the rainwater has been ensured, with the control rod 4 arranged in the protective tube 43 always being able to control the correct connection. Preventive digging can thus be avoided. By providing a sufficiently long telescopic area of the long sleeve, considerable subsidence can thus be compensated for. Reference list 1 horizontal drain pipe F Base plate, foundation 10th straight piece of pipe G building 11 (90 ° / 87 ° -) bend P Foundation pile 12th Long sleeve U Underground 13 Pointed end of the bow U _t stable subsurface U _n unsustainable subsurface 2nd vertical supply line 21 Tee 22 long spike end 23 first connection sleeve 24th second connection sleeve 25th Rainwater pipe or inspection pipe 26 Pipe clamp 3rd horizontal supply line 30th Sewer pipe 31 Pointed end of the sewer pipe 4th Control staff 40 upper end of the control rod 41 Attachment 42 bracket 43 Protective tube 44 lower pipe clamp 45 upper pipe clamp

Claims (12)

Drain pipe arrangement on a building in the surrounding subsurface (U) with an essentially horizontal drain pipe (1) in the deeper subsurface (U) and a substantially vertical feed line (2) to the horizontal drain pipe (1), with the vertical feed pipe (2) and the horizontal drain pipe (1) is provided with a long socket connection in the vertically oriented line path, characterized in that the building (G) has a base plate and / or foundation (F), the vertical feed line (2) being attached to the pipe clamp (26) Base plate and / or anchored to the foundation (F). Drain line arrangement according to claim 1, characterized in that a horizontal feed line (3) is arranged in or under the base plate and / or foundation (F), which leads into the vertical feed line (2) via a T-piece (21). Drain line arrangement according to claim 2, characterized in that the T-piece (21) with the downwardly directed section forms the inner part of the long-sleeve connection. Drainage arrangement arrangement according to claim 3, characterized in that the T-piece (21) is a pipe connection with two sleeves (23, 24) and a spigot end (22), the spigot end (22) being elongated and forming the inner part of the long-sleeve connection . Drain line arrangement according to one of the preceding claims, characterized in that a control rod (4) is slidably held in or on the vertical feed line (2) in the vertical longitudinal direction is, the control rod (4) is firmly anchored to the horizontal drain pipe (1). Drain line arrangement according to claim 5, characterized in that the control rod (4) is slidably supported in a protective tube (43) attached to the vertical feed line (2). Drain line arrangement according to claim 5, characterized in that the control rod (4) in the vertical feed line (2) fastened brackets (42) is slidably mounted. Drainage line arrangement according to claim 7, characterized in that the control rod (4) extends with its upper end (40) to the surface or inspection opening, with the upper end of the control rod (40) around the overlap dimension of the long sleeve in the initial installation state with the long sleeve connection completely pushed together (12) overhangs the top bracket (42). Drainage line arrangement according to claim 7 or 8, characterized in that the vertical feed line (2) consists of a plurality of rectilinear pipe sections which can be connected to one another via push-fit sockets, the control rod (4) being designed to be correspondingly extendable and in the vertical feed line (2) in each Section at least one holder (42) for the control rod (4) is arranged. Drainage line arrangement according to one of the preceding claims, characterized in that the long sleeve connection has an overlap dimension of 10 cm to 100 cm, in particular 20 cm to 50 cm. Drain line arrangement according to one of the preceding claims, characterized in that the vertical feed line (2) is a rainwater line or an inspection line (25). Drain pipe arrangement according to one of the preceding claims, characterized in that a 90 ° bend (11) or two 45 ° bends are provided as a transition from the vertical feed line (2) into the horizontal drain pipe (1), the section leading upwards of the transition forms the outer part of the long sleeve connection, namely a long sleeve (12).

Images