EP0767278B1 - Prelocating trough system - Google Patents

Abstract

Each drainage channel (12) has an upper and a lower part (14,16) separated by a horizontal, partially permeable, intermediate wall (15). The upper part has an intake section (18), open to the top, and a water course (28) to collect and transport incoming water, and is connected in the vicinity of a side-facing of a cistern (51) or a sink box (40). The lower channel part has a hollow chamber (20), open at the bottom. A soakaway (36) for surface water is located under the lower part. Upper and lower channel parts are connected via passages (30,32) for the water collected by the upper part. The upper openings of the passages are located in an area above the water course.

Description

The present invention relates to an infiltration channel system, especially for the drainage of partially sealed and sealed surfaces.

The drainage of partially or fully sealed surfaces with Aid is already known per se. So far drainage channels are arranged in the sealed area for this purpose, which are connected to a drainage pipe system. The essential The disadvantage of this system is that the drainage pipes clogged with time and maintenance of these pipes is extremely difficult, and that it is in the area around the drainage pipes settling of the ground occurs.

DE 44 03 454 C1 is a molded block for an infiltration channel known according to the preamble of claim 1 and 5. This molded block consists of a U open at the top, which acts as an inlet area. In this A biological seepage body is provided in the inlet area, who has the task of biologically cleaning the incoming water. There are openings in the lower horizontal leg of the U. arranged so that the water entering the channel through the openings in the floor area below the Molded body can seep away. With this gutter is the infiltration performance is low and the infiltration area can relatively quickly below the concrete profile clog. Moreover are differences in the water supply over the length of the Channel difficult to compensate, which is why such a channel in overloaded Areas flooded relatively quickly.

From US-A 4,561,801 a water drainage channel for Protection against corrosion on mountains and slopes described in Distances with infiltration areas is provided to a To seep away part of the flowing water. This solution offers only a low infiltration performance and is for the Not suitable for use in the plane.

The aim of the present invention is to avoid these disadvantages and to create an infiltration channel system that is easy to maintain and the risk of soil subsidence decreased.

According to the invention, this object is achieved by the infiltration channel systems of claims 1 and 5 solved. Advantageous further training the invention are the subject of the corresponding subclaims.

All infiltration concepts according to the invention according to the subordinate ones A gutter part that is open towards the bottom is a requirement together, the surface water is supplied. Under the Cavity is the percolation area, the one Fill, possibly with a certain grain size distribution, which hinders clogging by fines and, if necessary supports the accumulation of bioflor. Through the atmospheric The cavity of the channel part is in the infiltration area the accumulation of aerobic bacteria possible, so that a kind of biological cleaning like in the natural topsoil (Humus) takes place, is buried underground. To this Wise particles and even pollutants can be caused by the bioflor be bound, causing clogging of the infiltration area counteracts and surrounding ground area and even to a biological partial clarification of the infiltration water can. The infiltration area can be from the cavity through a geotextile be separated what the entry of fines in hindered the infiltration area and also the installation of Can promote bioflor. For pressure / suction rinsing of the geotextile in the As part of maintenance, it is advantageous if the geotextile on one or both sides with a sieve or grid-like reinforcement is provided to damage the geotextile when Avoid rinsing. With this in mind, the cavity should also be accessible from at least one end face. The the water is either over a gutter top or over a cistern, gully or other Surface drainage system (e.g. gutter) fed. The geotextile can possibly be exchangeable in the gutter, e.g. on Longitudinal guides must be held so that after clogging is interchangeable with fine substances. It is possible the water not only in the infiltration area, but also in the adjacent the drainage layer arranged to drain away if this Layer is suitable for this (e.g. gravel fill).

In a first type of infiltration channel according to the invention is the inlet area essentially with the infiltration area identical. A drainage channel of this system has one Channel upper part, in which the water from the sealed or partially sealed surface and a downward facing Channel lower part with a cavity into which surface water, e.g. from the gutter upper part over arranged in between Bushings or at the front via a sink box or a Cistern or other water storage or treatment facility is initiated. That in the downward open Water flowing into the cavity of the lower part of the channel seeps away then into the infiltration area in the floor under the gutter lower part. The infiltration area can pass through Protect a rodent and backwash-proof fabric. The Mouth of the passage in the upper part of the gutter is from the floor of the watercourse in the gutter upper part, i.e. the The mouth of the execution lies in a higher area of the Watercourse and thus acts as an overflow for the watercourse. Hereby is achieved that the running into the gutter top Dirt accumulates on the bottom of the watercourse and only that cleaner water through the bushings in the ones below Gutter lower part flows. Clogging of the bushings between the upper part of the gutter and the lower part of the gutter largely excluded. When using a gully the mouth of the gutter lower part in the gully from the gully floor spaced so that the gully as a sedimentation tank works. Coarse dirt and sand settle in the gully or the cistern, whereby relatively clean water in the Gutter lower part arrives.

The invention offers compared to the known systems Drainage pipes have the advantage that the drainage system in one operation is laid together with the drainage line. It can even be retrofitted in the area partially sealed surfaces. The laying can be independent from the sewer system. The laying does not have to in the form of continuous continuous drainage lines. The channels can be arranged individually, which one great scope in the design of a partially sealed Area leaves. The laying can also be done without a slope.

Since there is an area above the floor where the infiltration takes place, only the drainage channel itself is located and none is additional earth material as in the known drainage pipes the risk of soil subsidence is largely excluded. This effect can also be supported by the gutter lower parts against the subsoil through wide concrete beds are supported or the gutter base widened trained, i.e. with a wider infiltration area and / or wider downward protruding supports (Side walls).

The infiltration channel preferably consists of two each other facing away, i.e. with their horizontal legs against each other adjacent U profiles, with the U profile open at the top the gutter top and the one below it towards the bottom open U-profile forms the gutter lower part. In the contiguous Area are the gutter tops and gutter bottoms somewhat broadened, so that on the one hand a larger contact area and on the other hand a widening on both sides of the channel in the transition area arises for the lower gutter Load distribution and for the upper channel as a float protection serves. Preferably for the gutter top and the gutter bottom identical U-profiles used, so that less Tool costs for the production of the entire gutter construction are necessary.

The water course in the gutter upper part is preferably asymmetrical, i.e. offset to a lateral vertical channel wall, while carrying on towards the estuary the other channel wall is offset. This enables the arrangement the mouth of the implementation in an ascending Area of watercourse. The mouth is now off the ground spaced apart from the watercourse so that it fits into the gutter upper part collects incoming dirt on the bottom of the watercourse, while performing the estuary as an overflow for the watercourse serves. The bushings are adjacent to each other Part of the two identical U-profiles drilled in a circle, so that there is a possible axial or lateral offset the gutter does not affect that the water is on the edges created at the transition e.g. by getting caught of debris entering. The enlarged, preferably circular cylindrical transition in the implementation ensures that even with a small offset of the gutter top a trouble-free water flow to the lower part of the channel guaranteed between gutter upper part and lower gutter part is.

The profiles for the gutter top and gutter bottom become - independent whether they are identical - preferably made of concrete block.

The use of a two-part infiltration channel has the Advantage that the transport and installation of the gutter on site be made much easier. However, it is also possible to use one to use one-piece gutter, which is an upper upward open section and one below, down open section. Such a drainage channel is designed like an "H". A higher infiltration performance you get when the width of the gutter base exceeds the width of the gutter top. To this The cavity and the infiltration area are below the gutter is larger than that defined by the gutter upper part Infeed area of the infiltration channel. This increases the infiltration capacity the gutter.

The water supply from the gutter top to the gutter bottom can - as already described - by vertical bushings can be realized that the horizontal separation area between push through the gutter top and the gutter bottom. It can however, alternatively or additionally on an end face A sinkhole or cistern at the end of a drainage channel can be provided, which the incoming into the gutter upper part Absorbs water and passes it on to the lower part of the gutter. In one in such a case, the mouth area of the lower part of the gutter should spaced into the sink box from the bottom of the sink box his. In this way the sink box or cistern functions as a sedimentation basin, in which coarse dirt collects. In the area of the sink box and / or the cistern can be an oil separator be provided, which also slightly polluted the infiltration Allows surface water. Instead of a cistern or A sink can also be used for storage or water treatment plants be provided in which in the gutter top incoming water is passed. The activity of the gutter top can thus time from the activity of the gutter lower part be decoupled. It is still possible to use the upper part of the gutter and the lower part of the gutter to be used separately, which greatly expands the application options. The estuary the lower part of the gutter in the sink box then works for the Sink box as an overflow, into which estuary thus only relative clean water enters. In this way, pollution can be avoided or a clogging of the gutter lower part largely exclude. Preferably in the mouth of the gutter top a vertical end wall is inserted in the sink box, which extends from the bottom of the watercourse to a certain height extends so that the accumulates at the bottom of the watercourse Dirt is not passed into the gully. So double filtering of coarse particles is achieved before Entry into the gutter lower part.

The use of a sink box or a cistern continues the advantage that the gutter lower part or in the Channel formed in the lower part of the channel accessible from one end is easy to maintain. The gully or the cistern can of course also be used for drainage other areas are used, e.g. for roof drainage. The cistern or the gully can continue be provided with an overflow into the sewage system leads. By providing an appropriate amount, i.e. above of the gutter lower part, arranged overflow can be avoid that the water level in the lower part of the gutter is too high increases what the functionality of the entire infiltration system could affect.

Fig. 1

einen Querschnitt durch eine zweiteilige Versickerungsrinne mit einer Durchführung zwischen Rinnenoberteil und Rinnenunterteil gemäß Schnitt A-A aus Fig. 2;

Fig. 2

eine Seitenansicht eines Versickerungsrinnensystems umfassend einen Sinkkasten mit zwei daran angeordneten zweiteiligen Versickerungsrinnen;

Fig. 3

einen Längsschnitt eines Versickerungsrinnensystems bestehend aus einer Versickerungsrinne mit endseitig angeordneter Zisterne, wobei Rinnenoberteil und Rinnenunterteil der Versickerungsrinne getrennt sind;

Fig. 4

eine Detailansicht IV der stirnseitigen Mündung des Rinnenoberteils der Versickerungsrinne aus Fig. 2 am Einlauf in den Sinkkasten; und

Fig. 5

eine einteilige Versickerungsrinne mit integriertem Rinnenoberteil und Rinnenunterteil.

The invention is described below, for example, using the schematic drawing. In this show:

Fig. 1

a cross section through a two-part infiltration channel with a passage between the upper channel part and the lower channel part according to section AA of Fig. 2;

Fig. 2

a side view of an infiltration channel system comprising a sink box with two two-part infiltration channels arranged thereon;

Fig. 3

a longitudinal section of an infiltration channel system consisting of an infiltration channel with a cistern arranged at the end, the upper channel part and the lower channel part of the infiltration channel being separated;

Fig. 4

a detailed view IV of the front mouth of the gutter upper part of the infiltration channel from Figure 2 at the inlet into the sink box. and

Fig. 5

a one-piece infiltration channel with integrated channel top and channel bottom.

1 shows an infiltration channel system 10 with a two-part system Infiltration channel 12, consisting of an upper channel part 14 and a gutter lower part 16. gutter upper part 14 and Gutter lower part 16 are made of a concrete block as an identical profile educated. Both U-profiles 14, 16 lie with their horizontal leg 15 together, which horizontal leg 15 the separation between the inlet area 18 and the after Form at the bottom open cavity 20 of the infiltration channel 12. The adjacent floor 17 points in the longitudinal direction of the groove a rectangular toothing, with a floating of the Pre-mixed mortar layer in the resulting cavities prevented and a toothing between the upper part of the channel and the lower part of the channel is achieved. Instead of a square toothing, a Triangle or sine teeth can be used. The gearing can alternatively or additionally provided in the transverse direction of the channel become.

At the two upper ends of the vertical struts of the gutter top 14, an L-profile 22 (frame) is fastened, in such a way that the two L-profiles with their vertical Struts facing away from each other. This way, a Frame formed to accommodate a grate. The tops the vertical legs of the L-profiles 22 close exactly with a sealed surface, e.g. an asphalt layer 24, which sealed surface is covered by the drainage channel is draining.

The identical U-profile of the lower channel part 16 and the upper channel part 14 are in the area of their horizontal to each other lying leg 15 widened 26, so that an enlarged The contact surface of the two profiles 14, 16 gives each other. This leads to an improved stability of the assembled Channel parts 14, 16. In the channel upper part 14 is a Watercourse 28 formed, the cross-section with respect to the central axis somewhat to one side, i.e. shifted to the right is. The floor area of the watercourse rises to the left upwards to 29. In this increasing area 29 is the Mouth arranged for a passage 30, which is the inlet area 18 connects to the cavity 20. The mouth area the bushing 30 opens to the underside of the gutter top 14 in the horizontal leg 15 towards a circular widened flange area 32, which with the corresponding trained area 32 of the identical channel lower part 16 corresponds. So that the flange area 32 of a gutter upper part 14 always above the flange area 32 of the lower channel part 16 lies, it is necessary to carry out the bushings in axial direction with respect to the center of the channel mirror-symmetrical to arrange. 2 is the implementation 30.32 in axial direction (longitudinal direction) arranged centrally in each channel 12. This ensures that the identical Shaped stone for both the gutter top and the gutter bottom can be used. Channel upper part 14 and channel lower part 16 lie on a permeable layer of earth 34 on that below the infiltration channel in the infiltration area 36 loosened again and with a rodent and backwash-proof fabric can be offset, which in the Partition line between cavity 20 and infiltration area 36 is arranged is. Such a fabric can be a geotextile, that the infiltration area 36 lying under the cavity 20 against the ingress of fine substances and thus against fast Clogging protects. The geotextile can also have a regulatory function for the settlement of biomass in the infiltration area to have. The geotextile itself can be wider than the separation area be between the cavity and the infiltration area, so that the Channel lies on the textile. Since the geotextile is part of a Maintenance should be cleaned from time to time, it can be on the top or on both sides with a sieve or lattice-like Carrier be provided. In this way, the cavity and thus the geotextile can be cleaned by pressure flushing, without being destroyed. In addition, the cavity 20 through the interface e.g. the geotextile is effective against one Pollution protected from the infiltration area 36. On the soil layer 34 becomes the infiltration channel 12 by means of concrete beds 38 fixes which concrete fillings are pyramedal widen downwards. The concrete beds 38 are up to the upper end of the broadened area 26 of the gutter top 14 pulled, so that on the one hand the relative position of the gutter upper part 14 and lower channel part 16 is fixed and the other the gutter up against the thickened section 26 in Contact area 15 of the two U-profiles 14,16 is supported. This construction prevents the earth from settling in Prevents the area of the drainage channel. The so fortified Channel 12 is surrounded by a layer of gravel or sand 39.

As can be seen in Fig. 2, the two-part infiltration channel 12 of FIG. 1 is connected to a sink box 40 at the end his. The other end is with a vertical cover plate 42 completed so that the area in the area this cover plate 42 no dirt penetrate into the channel 12 can. The upper channel part 14 and the lower channel part 16 are with their inlet area 18 and cavity 20 to the sink box open as shown for the gutter top 14 in Fig. 4 which shows a view IV from FIG. 2. The implementations 30, 32 between gutter upper part 14 and lower gutter part 16 are shown in dashed lines. A detail in the front End of the infiltration channel 12 in the transition area to the gully 40 is shown in section.

That in the inlet area 18 (FIG. 1) of the infiltration channel 12 incoming water passes through a connection opening 44 of the Channel upper part 14 in the sink box 40. This opening 44 down, i.e. to the bottom area of the watercourse 28 a partition 46 delimits itself from the bottom of the watercourse 28 (FIG. 1) into a certain height of the inlet area 18 extends. This partition 46 is used to accumulate in the watercourse 28 To prevent debris from entering the gully 40. The gutter lower part 16 is located below Opening 48 connected to the sink box 40. The bottom the opening 48 is somewhat from the bottom 50 of the sink box spaced so that the sink box 40 serves as a settling tank, in which coarse dirt accumulates. Arrived from the sink box 40 therefore only relatively clean water in through the opening 48 the cavity 20 of the lower channel part 16, so that this Cavity 20 does not clog too quickly with coarse dirt and sand.

Sink box 40 can also be used to discharge sewage from other zones to be drained into the infiltration area 20 of the infiltration channel 12 (e.g. roof drainage). Sink box 40 can continue to be connected to a duct 52 which can be used if the Infiltration capacity of the infiltration channel is not sufficient, to remove all the water that is supplied.

3 shows a further embodiment of an infiltration channel system with a two-part drainage channel and one cistern 51 arranged at the end face. Identical or functionally identical Parts to the previous figures are identical Provide reference numerals. The infiltration channel system shown in Fig. 3 54 is identical to that in FIG. 1, 2 and 4 shown drainage channel system with the exception, that no bushings 30, 32 between the upper channel part 14 and lower channel part 16 are present. That in the gutter top 14 inflowing water therefore passes through a an opening 44 arranged in the cistern 51. Der Bottom 50 of the cistern 51 is at a considerable distance d from the mouth 48 of the lower channel part 16 is arranged. About the Channel upper part 14, therefore, incoming water is in the cistern 50 cleaned and kicked like a settling tank only as an overflow through the front opening 48 into the cavity 20 of the gutter bottom from where it is according to the arrows seeped into the ground. The cavity 20 is at its End 51 facing away from the cistern with a vent opening 55 provided so that water from the cistern 51 in the Cavity 20 of the lower channel part can flow. Such Vent can also be in the embodiment of the Fig. 2 can be provided, provided that no bushings between Gutter top and gutter bottom are provided or the Ventilation is not sufficient.

5 shows a further embodiment of an infiltration channel, where the gutter top and the gutter bottom in an H-shaped profile are integrated. Identical or functionally identical Parts to the previous figures are identical Provide reference numerals. The infiltration channel 58 exists essentially of an H-profile 60, the top two Struts 62 have a smaller distance than the down pointing vertical struts 64 below the horizontal Strut 66, which separates the inlet area 18 from the cavity 20. Due to the fact that the lower two struts 64 each compared to the upper vertical struts 62 by the distance e are offset outwards, the width of the cavity 20 is very much larger than in the embodiments shown so far. The watercourse 28 is also in the infiltration channel 58 again asymmetrical, i.e. arranged to the right while the passage 30 from the inlet area 18 into the cavity 20 in the left rising area 29 of the watercourse 28 is arranged. This embodiment has a very good one Infiltration capacity is very high due to the large footprint stable with little additional attachment effort to assemble. The solution is particularly useful if one Infiltration channel with a low installation height is required e.g. due to the limited vertical space between Soil and the area to be sealed.

All of the embodiments of the invention described above have the advantage that the entire inlet area 18 and thus the watercourse after removing the grate over the full Width is accessible from above and therefore easily cleaned can be. In the case of using a sink box or a Cistern is also the cavity 20 over the front Opening 48 to the sink box 40 easily accessible, so that too this area can be serviced. The opening 48 can be in operation be closed by a stopper. All embodiments have the without wide expansive fastenings Property on that settlement of the soil largely avoided become. The widening of the gutter lower part according to FIG. 5 can also be realized with a two-part channel according to FIGS. 1 to 4 become. In this case, the profiles are for gutter top and the lower part of the gutter are of course not identical.

In bushings 30, 32 between the upper part of the channel and the lower part of the channel a grid can be provided which acts as a barrier against coarse dirt and animals.

All gutter parts can be made of concrete, plastic, metal or other common building materials and composite materials become. For gutter top and gutter bottom can also used different materials in the manufacture become.

In the case of seepage of water from a surface drainage system, e.g. Gutter, it may be sufficient to use a gutter in which the gutter top, e.g. Gutter top 14 from Fig. 1 is omitted. Such Channel thus consists only of the lower channel part 16, the horizontal one Then leg 15 is no longer partially permeable, but is closed. The channel is then preferred connected at the front to the surface drainage system. Such a gutter can also be used together with inlet drainage gutters used according to the examples above, to increase the total infiltration capacity of the system.

Claims (11)

1. A percolating trough system including a trough comprising an upper trough part (14) and a lower trough part (16) separated from each other by at least one horizontally located partition (15) permeable at least in part;

   said upper trough part (14) including an upwards open inflow portion (18) and a water course (28) configured to catch and transport the inflow of water;

   said lower trough part (16) including a downwards open cavity (20) under which a percolation zone (36) for percolation of surface water is arranged,

   said inflow portion (18) being connected to said cavity (20) via at least one duct (30, 32),

   characterized in that
   said duct (30, 32) in said upper trough part ports into a vertically higher level portion of said water course (28).
2. The percolating trough system as set forth in claim 1,
   characterized in that
   said upper trough part (14) is connected to said lower trough part (16) via ducts (30, 32) to percolate said water inflow from said upper trough part (14) via said ducts (30, 32) into. said lower trough part (16) into the subsoil below said trough (12).
3. The percolating trough system as set forth in claim 2,
   characterized in that
   a grid serving as a dirt gully is arranged in said ducts (30, 32).
4. The percolating trough system as set forth in claim 3,
   characterized in that
   said water course (28) in said upper trough part (14) comprises a asymmetrical section offset towards an inner wall of said trough whilst the ports (30) of said ducts (30, 32) are offset into a high level portion of said water course (28) at the opposite side.
5. A percolating trough system including a trough (12) comprising a lower trough part (16) including a downwards open cavity (20) under which a percolation zone (36) for percolation of surface water is arranged,
   characterized in that
   said cavity (20) is connected to a cistern (51) or gully (40) at at least one face side, said port (48) of said lower trough part (16) into said cistern (51)/gully (40) being spaced away from the floor of said cistern (51)/gully (40).
6. The percolating trough system as set forth in claim 5,
   characterized in that

   an upper trough part (14) is provided separated from said lower trough part (16) by at least one horizontal oriented partition (15);

   said upper trough part (14) having an upwards open inflow portion (18), a water course (28) configured to catch and transport said inflow of water and is connected to a cistern (51) or gully (40) in the region of at least one face side.
7. The percolating trough system as set forth in claim 6,
   characterized in that
   upper trough part (14) and lower trough part (16) comprise ducts (30, 32) for a direct supply of water from said upper trough part (14) into said lower trough part (16).
8. The percolating trough system as set forth in claim 6 or 7,
   characterized in that
   arranged in the region of said inflow port (44) of said upper trough part (14) into said gully (40) a crest wall (46) is arranged extending from the bottom of said water course (28) to a specific height so that only the overflow of said water course (28) flows into said gully (40).
9. The percolating trough system as set forth in any of the preceding claims,
   characterized in that
   said trough or said lower trough part (16) is supported laterally by concrete fill (38).
10. The percolating trough system as set forth in any of the preceding claims,
    characterized in that
    said percolating trough (12) is split and comprises a separate section (14, 16) for said upper trough part (14) and for said lower trough part (16), said sections being identical.
11. The percolating trough system as set forth in any of the preceding claims,
    characterized in that
    said trough for percolating surface water is connected to a surface run-off system.

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