EP1067243A2 - Catchment basin for above ground water and construction method thereof - Google Patents

Catchment basin for above ground water and construction method thereof Download PDF

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Publication number
EP1067243A2
EP1067243A2 EP00112926A EP00112926A EP1067243A2 EP 1067243 A2 EP1067243 A2 EP 1067243A2 EP 00112926 A EP00112926 A EP 00112926A EP 00112926 A EP00112926 A EP 00112926A EP 1067243 A2 EP1067243 A2 EP 1067243A2
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EP
European Patent Office
Prior art keywords
basin
trough
ballast
sealing membrane
seal
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00112926A
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German (de)
French (fr)
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EP1067243A3 (en
EP1067243B1 (en
Inventor
Peter Dipl.-Ing. Mohr
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Max Aicher Recycling GmbH
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Max Aicher Recycling GmbH
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B5/00—Artificial water canals, e.g. irrigation canals
    • E02B5/02—Making or lining canals
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/10—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure
    • E02D31/12—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure against upward hydraulic pressure

Definitions

  • the invention relates to a trough-shaped, with a Plastic sealing membrane sealed pool for the retention of Surface water in an area with a high groundwater level where the Sealing bed is below the water table and on Method of making such a pool.
  • the water running off roads or other paved traffic areas is legally considered wastewater that is to be treated as such.
  • retention and / or separation basins are used that either as a pool made of reinforced concrete or as a plastic membrane sealed, trough-like basins.
  • Such pools serve for storing the incoming water quantities and for their throttled Discharge into a sewage treatment plant or in a receiving water, also as a separation basin for cleaning the water from suspended matter and separable liquids.
  • the invention is based on the object Possibility to create both the labor and cost of both to reduce the establishment, as well as for the maintenance of such a basin.
  • this object is achieved by a trough-shaped Retention basin solved according to claim 1.
  • a method for producing such a basin is in claim 7 specified.
  • the basic idea of the invention is to ballast the Pelvic sealing to prevent the effects of buoyancy the groundwater with an empty pool not within, but below the actual basin in a also sealed against the groundwater To arrange the tub.
  • the ballast material used to fill this tub is on the one hand by sealing against the groundwater and on the other hand enclosed by the actual pelvic seal like in a pillow, so that it stays dry and does not lose its function as ballast. Thereby there is no need to apply a reduction in buoyancy, which makes for this area significantly reduced the required excavation depth. Finally, can the ballast is not caused by contaminated surface water be contaminated.
  • the invention opens up a further, very advantageous possibility for production of such a basin, namely without lowering the Groundwater table. So it is easily possible to excavate for the Basin and the basin for the ballast fill located below the basin make under water, the plastic geomembrane for sealing the Tub opposite the groundwater above the water-filled excavation pit and lay them out under continuous pouring of the ballast material Lowering the displacement of the water filling the construction pit. The profile of the The pelvis to be produced is then formed in the ballast so that the actual pool seal can be installed and installed in the dry.
  • the invention opens up a further advantage, namely when slag from electric steelworks, so-called electric furnace slag with a weight greater than 30 kN / m 3 , is used as the filling material for the ballast to protect against buoyancy.
  • Electric furnace slag contains about 30 to 35% iron and is therefore very heavy.
  • this material has a 50% higher installation density than mineral material. This has the advantage that the required excavation quantities can be considerably reduced compared to conventional ballasting made of mineral material; this saves about a third of the excavation depth otherwise required.
  • the next step is a factory or next to the pool to be created 1 made of tarpaulin 8 made of flexible, welded together Plastic sheeting pulled over the excavation space 6 and provisionally secured.
  • Stabilizing elements 10 can also be located in the area of the base 4 of the tub be interpreted in the subsequent application of the ballast fill 11 Prevent the first ballast layer from slipping (Fig. 2).
  • the ballast layer 11 first on the excavation base 4 and then installed along the embankments 5. That by the progressive Ballasting displaced groundwater expresses itself on a subsurface rolly material to the outside; if the surface is made of cohesive material, it will of pumps through the previously laid below the sealing tarpaulin 8 Seepage pipes suctioned off and passed into a receiving water.
  • the sealing tarpaulin lies 8 under the weight of the ballast fill 11 over the entire surface on the base 4, 5 on, the pumps can be switched off and removed.
  • a second short piece of pipe 14 serves to aerate the ballast fill 11, especially when water is suctioned off.
  • the inlet pipe 15 to the basin and the outlet pipe 16 are above the Groundwater table 7 passed through the sealing tarpaulin 8 and in itself poem known manner.
  • the sealing tarpaulin 8 is known per se on these surfaces Fastened with clamping rails and sealing tape.
  • the outer edge of the waterproofing tarpaulin is about 2 m outside the pool edge 8 laid in an anchor trench 17, which then backfills and the filler is compressed. Between the anchor trench 17 and the edge of the excavation trough 4 is a circumferential wall 18 is arranged, which should be about 15 cm higher than that rear edge of the sealing tarpaulin 8 in the anchor trench 17 avoided that pent-up water from around the site under the Basin seal 20 can seep.
  • the desired shape of the retention basin 1 is then produced with additional bulk material and covered with sand material of the same type in order to level the surfaces.
  • a nonwoven mat with 500 g / m 2 basis weight is then laid on the sand layer as the lower protective layer 19 for the pool seal.
  • the basin seal 20 is installed also made of plastic sealing sheets welded together modified polyethylene or thermoplastic olefins, which are sufficient Resistance to those occurring in road wastewater after accidents Own chemicals.
  • the basin seal 20 is connected to the pipes of the inlet and Drain 15 or 16 tightly connected. Then outside of the Basin 1 created a control and maintenance shaft 12 for the process. On this the drainage pipe 13 and the ventilation pipe 14 of the ballast layer 11 connected.
  • the plastic sealing membrane of the tank seal 20 is with the Sealing tarpaulin 8 behind the circumferential earth wall 18 at the pool edge Hand welding welded (21) to prevent seepage water from entering prevent.
  • the pool seal 20 of the retention pool 1 is in on the pool side known way through fiber mat 22 against damage by Protected against abrasion or sharp-edged stones.
  • On the pelvic floor 2 is used as protection against the mechanical Stress during maintenance work an approximately 10 cm thick concrete layer 25 in a honeycomb-like mat used as formwork. Eventually they will Embankments covered with an approximately 10 to 15 cm thick layer of soil 24 and then greened.
  • the pelvic drain 16 takes place in a known manner via perforated Pipelines 26, which are covered with filter fabrics and nonwoven and on Connect tight pipes 27.
  • the pipes 26 are at half depth the basin 1 mounted on plastic supports; so they can from all sides flow is made, which reduces the flow rate in the pool and thus serves to retain mud.
  • This construction can be maintained with little effort; in case of damage only small amounts of contaminated material should be disposed of.

Abstract

The arrangement has a basin (1) sealed with a plastic sealing material and a sealing base (4) below the ground water level. The basin has a trough (3) below it that is sealed against the ground water with a filling of ballast material (11). An Independent claim is also included for a method of manufacturing a retention basin.

Description

Technisches GebietTechnical field

Die Erfindung bezieht sich auf ein wannenförmiges, mit einer Kunststoffdichtungsbahn gedichtetes Becken für die Rückhaltung von Oberflächenwasser in einem Gebiet mit hohem Grundwasserstand, bei dem die Abdichtungssohle unterhalb des Grundwasserspiegels liegt sowie auf ein Verfahren zum Herstellen eines solchen Beckens.The invention relates to a trough-shaped, with a Plastic sealing membrane sealed pool for the retention of Surface water in an area with a high groundwater level where the Sealing bed is below the water table and on Method of making such a pool.

Stand der TechnikState of the art

Das von Straßen oder sonstigen befestigten Verkehrsflächen ablaufende Wasser gilt rechtlich als Abwasser, das als solches zu behandeln ist. Um den stoßweisen Ablauf von nach einem Regenereignis ablaufendem Oberflächenwasser zu vergleichmäßigen, werden Rückhalte- und/oder Abscheidebecken benützt, die entweder als Becken aus Stahlbeton oder auch als mit Kunststoffdichtungsbahnen abgedichtete, wannenartige Erdbecken ausgeführt werden. Solche Becken dienen zur Speicherung der zulaufenden Wassermengen und zu deren gedrosselter Ableitung in eine Kläranlage oder in einen Vorfluter, als Abscheidebecken auch zur Reinigung des Wassers von Schwebstoffen und abscheidbaren Flüssigkeiten.The water running off roads or other paved traffic areas is legally considered wastewater that is to be treated as such. To the intermittent Surface water running off after a rain event equal, retention and / or separation basins are used that either as a pool made of reinforced concrete or as a plastic membrane sealed, trough-like basins. Such pools serve for storing the incoming water quantities and for their throttled Discharge into a sewage treatment plant or in a receiving water, also as a separation basin for cleaning the water from suspended matter and separable liquids.

Bei der Anlage von Erdbecken in Gebieten mit hohem Grundwasserstand, wie in Flussauen, an Seeufern oder in der Nähe von Moorgebieten, müssen zur Herstellung besondere Maßnahmen ergriffen werden, um die als Beckendichtung verwendeten Kunststoffdichtungsbahnen im Trockenen verlegen und verschweißen zu können. Dazu muss durch Brunnenanlagen mit Pumpen, gegebenenfalls nach Umschließung der Baustelle mit Spundwänden, der Grundwasserspiegel bis unter die Beckensohle abgesenkt werden.When installing earth basins in areas with high groundwater levels, such as in Floodplain meadows, on the shores of the lake or in the vicinity of moor areas must be used Manufacturing special measures are taken to act as a pool seal Lay the used plastic sealing sheets in the dry and to be able to weld. To do this, well systems with pumps, if necessary after enclosing the construction site with sheet piling, the Groundwater level should be lowered to below the bottom of the pool.

Wird ein solches Becken für Wartungsarbeiten entleert, dann muss die Beckendichtung gegen Auftrieb gesichert werden. Dies geschieht meist durch den Einbau dicker Bodenschichten, deren Kubatur noch vergrößert werden muss, weil das Material sich im Wasser befindet, dadurch unter Auftrieb steht und deshalb erheblich leichter ist als in trockenem Zustand. Dies bedingt den teuren Aushub einer großen Menge nassen Bodens, der meist beseitigt werden muss. Als Ersatzboden müssen Kiese geliefert werden. Bei Unfällen mit Chemikalien oder mit kontaminiertem Löschwasser nach Fahrzeugbränden werden solche lediglich als Ballast dienenden Bodenschichten verunreinigt; sie müssen dann mit hohen Kosten als Sondermüll beseitigt werden. Auch bei der Entleerung des Beckens für Wartungsarbeiten muss der Grundwasserspiegel immer bis auf die Höhe der Abdichtungssohle abgesenkt werden.If such a pool is emptied for maintenance work, then the Pelvic seal to be secured against buoyancy. This usually happens through the Installation of thick layers of soil, the cubature of which still needs to be increased because the material is in the water and is therefore buoyant and therefore is considerably lighter than when dry. This requires expensive excavation a large amount of wet soil, which usually has to be removed. As Replacement gravel must be delivered. In the event of accidents involving chemicals or with contaminated extinguishing water after vehicle fires only become such contaminated soil layers serving as ballast; then they have to be high Costs can be disposed of as special waste. Even when emptying the pelvis for The groundwater table must always be up to the level of maintenance work Waterproofing sole can be lowered.

Aufgabe der ErfindungObject of the invention

Vor diesem Hintergrund liegt der Erfindung die Aufgabe zugrunde, eine Möglichkeit zu schaffen, um den arbeits- und kostenmäßigen Aufwand sowohl für die Errichtung, als auch für die Wartung eines solchen Erdbeckens zu verringern.Against this background, the invention is based on the object Possibility to create both the labor and cost of both to reduce the establishment, as well as for the maintenance of such a basin.

Darstellung der ErfindungPresentation of the invention

Gemäß der Erfindung wird diese Aufgabe durch ein wannenförmiges Rückthaltebecken gemäß Anspruch 1 gelöst.According to the invention, this object is achieved by a trough-shaped Retention basin solved according to claim 1.

Ein Verfahren zur Herstellung eines solchen Beckens ist in Anspruch 7 angegeben.A method for producing such a basin is in claim 7 specified.

Vorteilhafte Weiterbildungen ergeben sich aus den jeweiligen Unteransprüchen.Advantageous further developments result from the respective subclaims.

Der Grundgedanke der Erfindung besteht darin, die Ballastierung der Beckenabdichtung zur Verhinderung gegen die Wirkungen des Auftriebs durch das Grundwasser bei leerem Becken nicht innerhalb, sondern unterhalb des eigentlichen Beckens in einer ebenfalls gegenüber dem Grundwasser gedichteten Wanne anzuordnen. Das zur Füllung dieser Wanne verwendete Ballastmaterial ist so einerseits durch die Abdichtung gegenüber dem Grundwasser und andererseits durch die eigentliche Beckendichtung wie in einem Kissen eingeschlossen, so dass es trocken bleibt und seine Funktion als Ballast nicht verliert. Dadurch braucht keine Abminderung für Auftrieb angesetzt zu werden, wodurch sich für diesen Bereich die erforderliche Aushubtiefe deutlich verringert. Schließlich kann die Ballastschüttung nicht durch etwa kontaminiertes Oberflächenwasser verunreinigt werden.The basic idea of the invention is to ballast the Pelvic sealing to prevent the effects of buoyancy the groundwater with an empty pool not within, but below the actual basin in a also sealed against the groundwater To arrange the tub. The ballast material used to fill this tub is on the one hand by sealing against the groundwater and on the other hand enclosed by the actual pelvic seal like in a pillow, so that it stays dry and does not lose its function as ballast. Thereby there is no need to apply a reduction in buoyancy, which makes for this area significantly reduced the required excavation depth. Finally, can the ballast is not caused by contaminated surface water be contaminated.

Die Erfindung eröffnet eine weitere, sehr vorteilhafte Möglichkeit zur Herstellung eines solchen Beckens, nämlich unter Verzicht auf eine Absenkung des Grundwasserspiegels. So ist es ohne weiteres möglich, den Aushub für das Becken und die unterhalb des Beckens befindliche Wanne für die Ballastschüttung unter Wasser vorzunehmen, die Kunststoffdichtungsbahn für die Abdichtung der Wanne gegenüber dem Grundwasser über der wassergefüllten Baugrube auszulegen und sie durch fortlaufende Schüttung des Ballastmaterials unter Verdrängung des die Baugrube füllenden Wassers abzusenken. Das Profil des herzustellenden Beckens wird dann in der Ballastschüttung ausgeformt, so dass die eigentliche Beckendichtung im Trockenen verlegt und eingebaut werden kann.The invention opens up a further, very advantageous possibility for production of such a basin, namely without lowering the Groundwater table. So it is easily possible to excavate for the Basin and the basin for the ballast fill located below the basin make under water, the plastic geomembrane for sealing the Tub opposite the groundwater above the water-filled excavation pit and lay them out under continuous pouring of the ballast material Lowering the displacement of the water filling the construction pit. The profile of the The pelvis to be produced is then formed in the ballast so that the actual pool seal can be installed and installed in the dry.

Die Erfindung eröffnet aber noch einen weiteren Vorteil, nämlich dann, wenn als Füllmaterial für die Ballastschüttung zur Auftriebssicherung Schlacke aus Elektrostahlwerken, sogenannte Elektroofenschlacke mit einer Wichte größer 30 kN/m3 verwendet wird. Elektroofenschlacke enthält etwa 30 bis 35 % Eisen und ist deshalb sehr schwer. Infolge dieser Zusammensetzung hat dieses Material eine um 50 % höhere Einbaudichte als mineralisches Material. Daraus resultiert als Vorteil, dass die erforderlichen Aushubmengen gegenüber einer herkömmlichen Ballastierung aus mineralischem Material beträchtlich reduziert werden können; es wird hierdurch etwa ein Drittel der sonst notwendigen Aushubtiefe eingespart.However, the invention opens up a further advantage, namely when slag from electric steelworks, so-called electric furnace slag with a weight greater than 30 kN / m 3 , is used as the filling material for the ballast to protect against buoyancy. Electric furnace slag contains about 30 to 35% iron and is therefore very heavy. As a result of this composition, this material has a 50% higher installation density than mineral material. This has the advantage that the required excavation quantities can be considerably reduced compared to conventional ballasting made of mineral material; this saves about a third of the excavation depth otherwise required.

Beschreibung der ZeichnungDescription of the drawing

Die Erfindung wird nachstehend anhand der Zeichnung näher erläutert. Es zeigt

Fig. 1
einen Schnitt durch ein Rückhaltebecken nach der Erfindung und
Fig. 2
einen Ausschnitt aus Fig. 1 in größerem Maßstab.
The invention is explained below with reference to the drawing. It shows
Fig. 1
a section through a retention basin according to the invention and
Fig. 2
a section of Fig. 1 on a larger scale.

Zur Errichtung des in Fig. 1 in einem Querschnitt dargestellten Rückhaltebeckens 1 wird zunächst eine über die spätere Beckengröße hinausgehende Fläche mit geometrisch einfacher Form etwa 1 bis 2 m über die planmäßige Beckensohle 2 hinaus ausgehoben, so dass eine Wanne 3 mit einer Sohle 4 und Böschungen 5 entsteht, deren Oberflächen geglättet werden. Der hierdurch entstandene Aushubraum 6 füllt sich bis zum natürlichen Grundwasserspiegel 7 mit Wasser auf. Auf die Böschungen 5 werden vorsorglich Sickerrohre ausgelegt und Saugschläuche für Pumpen vorgesehen.To erect the retention basin shown in cross section in FIG. 1 1 is initially an area that goes beyond the later pool size geometrically simple shape about 1 to 2 m above the planned pelvic floor 2 excavated so that a tub 3 with a sole 4 and slopes 5 arises, the surfaces of which are smoothed. The resulting one Excavation space 6 fills up to natural groundwater level 7 with water on. As a precaution, drainage pipes are laid out on the slopes 5 Suction hoses provided for pumps.

Im nächsten Schritt wird eine werkseitig oder neben dem zu erstellenden Becken 1 hergestellte Abdichtungsplane 8 aus flexiblen, miteinander verschweißten Kunststoffdichtungsbahnen über den Aushubraum 6 gezogen und provisorisch gesichert. Anschließend wird eine Schutzschicht 9, z.B. eine Faservliesmatte aus miteinander vernähten Einzelbahnen, über die bereits verlegte Dichtungsplane 8 gezogen. Im Bereich der Wannensohle 4 können noch Stabilisierungselemente 10 ausgelegt werden, die beim nachfolgenden Aufbringen der Ballastschüttung 11 ein Abrutschen der ersten Ballastschicht verhindern (Fig. 2).The next step is a factory or next to the pool to be created 1 made of tarpaulin 8 made of flexible, welded together Plastic sheeting pulled over the excavation space 6 and provisionally secured. A protective layer 9, e.g. a nonwoven mat individual sheets sewn together, via the already installed sealing tarpaulin 8 drawn. Stabilizing elements 10 can also be located in the area of the base 4 of the tub be interpreted in the subsequent application of the ballast fill 11 Prevent the first ballast layer from slipping (Fig. 2).

Anschließend wird mit einem Bagger, der einen Ausleger mit entsprechender Reichweite besitzt, die Ballastschicht 11 zunächst auf der Aushubsohle 4 und sodann entlang der Böschungen 5 eingebaut. Das durch die fortschreitende Ballastierung verdrängte Grundwasser drückt sich bei einem Untergrund aus rolligem Material nach außen; bei einem Untergrund aus bindigem Material wird es von Pumpen durch die vorher unterhalb der Abdichtungsplane 8 verlegten Sickerrohre abgesaugt und in einen Vorfluter geleitet. Liegt die Abdichtungsplane 8 unter dem Gewicht der Ballastschüttung 11 vollflächig auf dem Untergrund 4, 5 auf, können die Pumpen abgeschaltet und entfernt werden.Then with an excavator that has a boom with appropriate Has range, the ballast layer 11 first on the excavation base 4 and then installed along the embankments 5. That by the progressive Ballasting displaced groundwater expresses itself on a subsurface rolly material to the outside; if the surface is made of cohesive material, it will of pumps through the previously laid below the sealing tarpaulin 8 Seepage pipes suctioned off and passed into a receiving water. The sealing tarpaulin lies 8 under the weight of the ballast fill 11 over the entire surface on the base 4, 5 on, the pumps can be switched off and removed.

Zwischen dem Tiefpunkt der Abdichtungsplane 8 und dem Beckenrand wird im Bereich eines Wartungs- und Kontrollschachtes 12 entlang der Böschung ein geschlossenes Rohr 13 verlegt und außerhalb der Abdichtungsplane 8 zunächst provisorisch befestigt; es dient gegebenenfalls zur Absaugung von etwa in die Ballastschüttung 11 eingedrungenem Wasser. Ein zweites kurzes Rohrstück 14 dient der Belüftung der Ballastschüttung 11, vor allem dann, wenn Wasser abgesaugt wird.Between the low point of the tarpaulin 8 and the pool edge is in Area of a maintenance and inspection shaft 12 along the embankment closed tube 13 laid and outside of the tarpaulin 8 initially provisionally attached; if necessary, it is used to extract air into the Ballast fill 11 penetrated water. A second short piece of pipe 14 serves to aerate the ballast fill 11, especially when water is suctioned off.

Das Zulaufrohr 15 zum Becken sowie das Auslaufrohr 16 werden oberhalb des Grundwasserspiegels 7 durch die Abdichtungsplane 8 geführt und in an sich bekannter Weise gedichtet. In den Böschungsflächen 5 können hierzu um die Rohrleitungen herum Betonkragen hergestellt und die Oberflächen geglättet werden. Auf diesen Oberflächen wird die Abdichtungsplane 8 in an sich bekannter Weise mit Klemmschienen und Dichtungsband befestigt.The inlet pipe 15 to the basin and the outlet pipe 16 are above the Groundwater table 7 passed through the sealing tarpaulin 8 and in itself poem known manner. For this purpose in the embankment areas 5 around Pipelines are made around concrete collars and the surfaces smoothed become. The sealing tarpaulin 8 is known per se on these surfaces Fastened with clamping rails and sealing tape.

Etwa 2 m außerhalb des Beckenrandes wird der Außenrand der Abdichtungsplane 8 in einem Ankergraben 17 verlegt, der anschließend verfüllt und das Füllmaterial verdichtet wird. Zwischen dem Ankergraben 17 und dem Rand der Aushubwanne 4 ist ein umlaufender Wall 18 angeordnet, der etwa 15 cm höher sein soll als der rückwärtige Rand der Abdichtungsplane 8 im Ankergraben 17. Damit wird vermieden, dass aufgestautes Wasser etwa aus dem Gelände unter die Beckendichtung 20 sickern kann.The outer edge of the waterproofing tarpaulin is about 2 m outside the pool edge 8 laid in an anchor trench 17, which then backfills and the filler is compressed. Between the anchor trench 17 and the edge of the excavation trough 4 is a circumferential wall 18 is arranged, which should be about 15 cm higher than that rear edge of the sealing tarpaulin 8 in the anchor trench 17 avoided that pent-up water from around the site under the Basin seal 20 can seep.

Anschließend wird mit zusätzlichem Schüttmaterial die gewünschte Form des Rückhaltebeckens 1 hergestellt und zur Egalisierung der Flächen mit gleichartigem Sandmaterial abgedeckt. Auf die Sandschicht wird dann als untere Schutzschicht 19 für die Beckendichtung eine Faservliesmatte mit 500 g/m2 Flächengewicht verlegt. The desired shape of the retention basin 1 is then produced with additional bulk material and covered with sand material of the same type in order to level the surfaces. A nonwoven mat with 500 g / m 2 basis weight is then laid on the sand layer as the lower protective layer 19 for the pool seal.

Anschließend erfolgt der Einbau der Beckendichtung 20. Sie besteht zweckmäßig ebenfalls aus miteinander verschweißten Kunststoffdichtungsbahnen aus modifiziertem Polyethylen oder thermoplastischen Olefinen, die eine ausreichende Beständigkeit gegen die im Straßenabwasser nach Unfällen vorkommenden Chemikalien besitzen. Die Beckendichtung 20 wird an die Rohrleitungen des Zu- und Ablaufs 15 bzw. 16 dicht angeschlossen. Anschließend wird außerhalb des Beckens 1 ein Kontroll- und Wartungsschacht 12 für den Ablauf erstellt. An diesen werden das Entwässerungsrohr 13 sowie das Belüftungsrohr 14 der Ballastschicht 11 angeschlossen.Then the basin seal 20 is installed also made of plastic sealing sheets welded together modified polyethylene or thermoplastic olefins, which are sufficient Resistance to those occurring in road wastewater after accidents Own chemicals. The basin seal 20 is connected to the pipes of the inlet and Drain 15 or 16 tightly connected. Then outside of the Basin 1 created a control and maintenance shaft 12 for the process. On this the drainage pipe 13 and the ventilation pipe 14 of the ballast layer 11 connected.

Die Kunststoffdichtungsbahn der Beckendichtung 20 wird mit der Abdichtungsplane 8 hinter dem umlaufenden Erdwall 18 am Beckenrand durch Handschweißung verschweißt (21), um den Zutritt von Sickerwasser zu verhindern.The plastic sealing membrane of the tank seal 20 is with the Sealing tarpaulin 8 behind the circumferential earth wall 18 at the pool edge Hand welding welded (21) to prevent seepage water from entering prevent.

Die Beckendichtung 20 des Rückhaltebeckens 1 wird zur Beckenseite hin in an sich bekannter Weise durch Faservliesmatten 22 gegen Beschädigung durch Abrieb oder scharfkantige Steine geschützt. Darüber kann eine Krallmatte 23 zur Stabilisierung der Bodenandeckung 24 zumindest im Bereich der Böschungen verlegt werden. Auf der Beckensohle 2 wird als Schutz gegen die mechanische Beanspruchung bei Wartungsarbeiten eine etwa 10 cm dicke Betonschicht 25 in eine wabenartige, als Schalung dienende Matte eingebaut. Schließlich werden die Böschungen mit einer etwa 10 bis 15 cm dicken Bodenschicht 24 bedeckt und anschließend begrünt.The pool seal 20 of the retention pool 1 is in on the pool side known way through fiber mat 22 against damage by Protected against abrasion or sharp-edged stones. In addition, a claw mat 23 for Stabilization of the ground cover 24 at least in the area of the embankments be relocated. On the pelvic floor 2 is used as protection against the mechanical Stress during maintenance work an approximately 10 cm thick concrete layer 25 in a honeycomb-like mat used as formwork. Eventually they will Embankments covered with an approximately 10 to 15 cm thick layer of soil 24 and then greened.

Der Beckenablauf 16 erfolgt in an sich bekannter Weise über gelochte Rohrleitungen 26, welche mit Filtergeweben und Vliesstoff umhüllt sind und an dichte Rohrleitungen 27 anschließen. Die Rohrleitungen 26 sind in halber Tiefe des Beckens 1 auf Kunststoffstützen montiert; sie können so von allen Seiten angeströmt werden, wodurch sich die Fließgeschwindigkeit im Becken verringert und damit dem Schlammrückhalt dient. The pelvic drain 16 takes place in a known manner via perforated Pipelines 26, which are covered with filter fabrics and nonwoven and on Connect tight pipes 27. The pipes 26 are at half depth the basin 1 mounted on plastic supports; so they can from all sides flow is made, which reduces the flow rate in the pool and thus serves to retain mud.

Diese Konstruktion kann ohne großen Aufwand gewartet werden; im Schadensfall sind nur geringe Mengen kontaminierten Materials zu entsorgen.This construction can be maintained with little effort; in case of damage only small amounts of contaminated material should be disposed of.

Claims (13)

Wannenförmiges, mit einer Kunststoffdichtungsbahn gedichtetes Becken für die Rückhaltung von Oberflächenwasser in einem Gebiet mit hohem Grundwasserstand, bei dem die Abdichtungssohle unterhalb des Grundwasserspiegels liegt, dadurch gekennzeichnet, dass unterhalb des Beckens (1) eine gegen das Grundwasser abgedichtete Wanne (3) mit einer Schüttung (11) aus Ballastmaterial angeordnet ist.Trough-shaped basin sealed with a plastic sealing membrane for the retention of surface water in a high area Groundwater level at which the waterproofing bottom is below the Groundwater level, characterized in that below the Basin (1) a tub (3) sealed against the groundwater with a Filling (11) made of ballast material is arranged. Wannenförmiges Becken nach Anspruch 1, dadurch gekennzeichnet, dass die Schüttung (11) aus Elektroofenschlacke besteht.Trough-shaped basin according to claim 1, characterized in that the bed (11) consists of electric furnace slag. Wannenförmiges Becken nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Abdichtung (8) der Wanne (3) gegen das Grundwasser aus einer Kunststoffdichtungsbahn besteht.Trough-shaped basin according to claim 1 or 2, characterized in that that the seal (8) of the tub (3) against the groundwater from a Plastic sealing membrane is made. Wannenförmiges Becken nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Ränder der Abdichtung (8) in einem außerhalb des Beckens verlaufenden Ankergraben (17) angeordnet sind.Trough-shaped basin according to one of claims 1 to 3, characterized characterized in that the edges of the seal (8) in an outside of the Basin extending anchor trench (17) are arranged. Wannenförmiges Becken nach Anspruch 4, dadurch gekennzeichnet, dass zwischen dem Ankergraben (17) und dem Rand der Wanne (3) ein umlaufender Wall (18) angeordnet ist, über den die Abdichtung (8) verläuft.Trough-shaped basin according to claim 4, characterized in that between the anchor trench (17) and the edge of the tub (3) circumferential wall (18) is arranged over which the seal (8) runs. Wannenförmiges Becken nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Kunststoffdichtungsbahn für die Abdichtung (8) der Wanne (3) und die Kunststoffdichtungsbahn (20) des Beckens (1) im Bereich des Walles (18) dicht miteinander verbunden, insbesondere verschweißt (21) sind.Trough-shaped basin according to one of claims 1 to 5, characterized characterized in that the plastic sealing membrane for sealing (8) the Trough (3) and the plastic sealing membrane (20) of the basin (1) in the area of the wall (18) tightly connected to one another, in particular welded (21) are. Verfahren zum Herstellen eines Rückhaltebeckens nach den Ansprüchen 1 bis 6, gekennzeichnet durch folgende Verfahrensschritte: die Baugrube (6) für das zu errichtende Rückhaltebecken (1) wird ohne Umschließung oder Absenkung des Grundwasserspiegels (7) ausgehoben, über die Aushubfläche (4, 5) wird eine Dichtungsbahn (8) als Bodendichtung gelegt und mit Ballastmaterial (11) beschüttet, bis sie unter Verdrängung des in der Baugrube befindlichen Wassers auf die Aushubsohle (4) abgesunken ist, in der Oberfläche des Ballastmaterials (11) wird das Profil des zu errichtenden Rückhaltebeckens (1) ausgeformt, über die Oberfläche des Ballastmaterials (11) wird eine Dichtungsbahn als Beckendichtung (20) gelegt. Method for producing a retention basin according to claims 1 to 6, characterized by the following method steps: the construction pit (6) for the retention basin (1) to be erected is excavated without enclosing or lowering the groundwater table (7), A sealing membrane (8) is laid over the excavation surface (4, 5) as a floor seal and poured with ballast material (11) until it has sunk onto the excavation base (4) while displacing the water in the excavation pit, the profile of the retention basin (1) to be erected is formed in the surface of the ballast material (11), A sealing membrane as a pool seal (20) is placed over the surface of the ballast material (11). Verfahren nach Anspruch 7, dadurch gekennzeichnet, dass die Außenränder der Boden- (8) und der Beckendichtungsbahn (20) - unter Einschluss des Ballastmaterials (11) - dicht miteinander verbunden, insbesondere verschweißt werden.A method according to claim 7, characterized in that the outer edges the bottom (8) and the basin waterproofing membrane (20) - including the Ballast material (11) - tightly connected, in particular be welded. Verfahren nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass als Ballastmaterial (11) Elektroofenschlacke verwendet wird.A method according to claim 7 or 8, characterized in that as Ballast material (11) electric furnace slag is used. Verfahren nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, dass auf die Bodendichtungsbahn (8) zumindest im Bereich der Beckensohle (4) Stabilisierungselemente (10) zur Fixierung des Ballastmaterials (11) aufgelegt werden.Method according to one of claims 7 to 9, characterized in that on the floor sealing membrane (8) at least in the area of the pelvic floor (4) Stabilizing elements (10) for fixing the ballast material (11) be put on. Verfahren nach einem der Ansprüche 7 bis 10, dadurch gekennzeichnet, dass auf die Beckensohle (2) und/oder die geböschten Seitenwände des Beckens (1) eine Schutz- und/oder Ballastschicht aufgebracht wird.Method according to one of claims 7 to 10, characterized in that that on the pelvic floor (2) and / or the sloped side walls of the Basin (1) a protective and / or ballast layer is applied. Verfahren nach Anspruch 11, dadurch gekennzeichnet, dass die Schutz- und/oder Ballastschicht im Bereich der Beckensohle (2) aus einer Betonplatte (25) besteht.A method according to claim 11, characterized in that the protective and / or Ballast layer in the area of the pelvic sole (2) from one Concrete slab (25) exists. Verfahren nach Anspruch 11, dadurch gekennzeichnet, dass die Schutz- und/oder Ballastschicht im Bereich der geböschten Wände aus Bodenmaterial (24) besteht.A method according to claim 11, characterized in that the protective and / or Ballast layer in the area of the slope walls Soil material (24).
EP00112926A 1999-07-05 2000-06-20 Catchment basin for above ground water and construction method thereof Expired - Lifetime EP1067243B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19930699A DE19930699A1 (en) 1999-07-05 1999-07-05 Pool for the retention of surface water
DE19930699 1999-07-05

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EP1067243A2 true EP1067243A2 (en) 2001-01-10
EP1067243A3 EP1067243A3 (en) 2001-05-23
EP1067243B1 EP1067243B1 (en) 2006-09-06

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EP00112926A Expired - Lifetime EP1067243B1 (en) 1999-07-05 2000-06-20 Catchment basin for above ground water and construction method thereof

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EP (1) EP1067243B1 (en)
AT (1) ATE338851T1 (en)
CZ (1) CZ292305B6 (en)
DE (2) DE19930699A1 (en)
DK (1) DK1067243T3 (en)
ES (1) ES2269044T3 (en)
HU (1) HU227023B1 (en)

Cited By (4)

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Publication number Priority date Publication date Assignee Title
DE102011012777A1 (en) 2011-03-01 2012-10-25 Yevda Yakubov Method for preventing floods in river to flow into e.g. nearby city, involves pumping water in more distant flood basin from river by pump through water-conducting supply pipe and main line pipe
DE202011003381U1 (en) 2011-03-01 2013-01-16 Yevda Yakubov Device for preventing flooding
NL1040236C2 (en) * 2013-06-03 2014-12-08 Haner Infra Innovatie B V TUNNEL SETUP.
WO2019234465A1 (en) 2018-06-06 2019-12-12 Yevda Yakubov Device and method for preventing floods

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US4407606A (en) * 1979-11-13 1983-10-04 Larsen Ole J F Method and apparatus for producing and laying a ballasted mat for ground stabilization
JPS59106611A (en) * 1982-12-06 1984-06-20 C I Kasei Co Ltd Laying work of water sealing sheet
DE4002090A1 (en) * 1990-01-25 1991-08-01 Fred Dipl Ing Petersen Treating eutrophic stagnant surface water - by covering the sediment with a semipermeable film to encapsulate pptd. phosphate
US5080528A (en) * 1981-04-09 1992-01-14 Finic, B.V. Method and apparatus for impounding fluids
EP0775781A1 (en) * 1995-11-24 1997-05-28 Sibelon S.p.A. Waterproofing system for hydraulic structures with rigid sheets in synthetic material

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US4407606A (en) * 1979-11-13 1983-10-04 Larsen Ole J F Method and apparatus for producing and laying a ballasted mat for ground stabilization
US5080528A (en) * 1981-04-09 1992-01-14 Finic, B.V. Method and apparatus for impounding fluids
JPS59106611A (en) * 1982-12-06 1984-06-20 C I Kasei Co Ltd Laying work of water sealing sheet
DE4002090A1 (en) * 1990-01-25 1991-08-01 Fred Dipl Ing Petersen Treating eutrophic stagnant surface water - by covering the sediment with a semipermeable film to encapsulate pptd. phosphate
EP0775781A1 (en) * 1995-11-24 1997-05-28 Sibelon S.p.A. Waterproofing system for hydraulic structures with rigid sheets in synthetic material

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011012777A1 (en) 2011-03-01 2012-10-25 Yevda Yakubov Method for preventing floods in river to flow into e.g. nearby city, involves pumping water in more distant flood basin from river by pump through water-conducting supply pipe and main line pipe
DE202011003381U1 (en) 2011-03-01 2013-01-16 Yevda Yakubov Device for preventing flooding
DE102011012777B4 (en) * 2011-03-01 2015-12-24 Yevda Yakubov Device and method for preventing flooding
NL1040236C2 (en) * 2013-06-03 2014-12-08 Haner Infra Innovatie B V TUNNEL SETUP.
EP2811075A1 (en) * 2013-06-03 2014-12-10 Haner Infra Innovatie B.V. Tunnel drainage arrangement
WO2019234465A1 (en) 2018-06-06 2019-12-12 Yevda Yakubov Device and method for preventing floods

Also Published As

Publication number Publication date
CZ20002460A3 (en) 2001-02-14
HUP0002563A3 (en) 2002-03-28
DK1067243T3 (en) 2007-01-15
HU227023B1 (en) 2010-05-28
ATE338851T1 (en) 2006-09-15
ES2269044T3 (en) 2007-04-01
CZ292305B6 (en) 2003-09-17
DE50013420D1 (en) 2006-10-19
EP1067243A3 (en) 2001-05-23
DE19930699A1 (en) 2001-01-11
EP1067243B1 (en) 2006-09-06
HUP0002563A2 (en) 2001-04-28
HU0002563D0 (en) 2000-09-28

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