WO2008009483A1 - Citerne enterrée - Google Patents

Citerne enterrée Download PDF

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Publication number
WO2008009483A1
WO2008009483A1 PCT/EP2007/006620 EP2007006620W WO2008009483A1 WO 2008009483 A1 WO2008009483 A1 WO 2008009483A1 EP 2007006620 W EP2007006620 W EP 2007006620W WO 2008009483 A1 WO2008009483 A1 WO 2008009483A1
Authority
WO
WIPO (PCT)
Prior art keywords
erdtank
chamber
tank
underground
stiffening beads
Prior art date
Application number
PCT/EP2007/006620
Other languages
German (de)
English (en)
Inventor
Wolfgang Voss
Olaf Koops
Marco Rumberg
Original Assignee
Rewatec Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rewatec Gmbh filed Critical Rewatec Gmbh
Publication of WO2008009483A1 publication Critical patent/WO2008009483A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/02—Large containers rigid
    • B65D88/10—Large containers rigid parallelepipedic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/76—Large containers for use underground
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
    • E03B3/02—Methods or installations for obtaining or collecting drinking water or tap water from rain-water
    • E03B3/03—Special vessels for collecting or storing rain-water for use in the household, e.g. water-butts
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F11/00—Cesspools
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/108—Rainwater harvesting

Definitions

  • the invention relates to an underground tank, in particular for receiving rainwater, waste water, chemicals and other liquids, with a storage chamber, wherein the storage chamber comprises a wall portion and two chamber surfaces, of which one chamber surface is formed as a chamber bottom and the other chamber surface as a chamber ceiling ,
  • waste water, chemicals and other liquids tank containers are used, which are either installed above ground or built underground.
  • the underground storage has proven to be particularly advantageous.
  • the underground installation of collecting containers has the advantage of light-tightness and cooling, which has great importance, for example, in terms of hygiene in the storage of rainwater.
  • such subterranean tanks, so-called underground tanks are subject to special requirements with regard to tightness and stability, since they are exposed to an increased load due to the surrounding soil.
  • unlike above-ground storage tanks these are not accessible to visual inspection.
  • Earth tanks can have different shapes; For example, approximately spherical tanks are known with a manhole in the region of the uppermost point of the ball and oval or box-shaped container. These tank systems usually have relatively high vertical orientations, which additionally serve to improve the static properties. Due to the diversion or deflection of compressive forces and due to an economically favorable ratio of surface area to volume, underground tanks have proven to be particularly advantageous as horizontal or upright cylinders or in spherical form. Box-shaped containers, however, are relatively rare. They are, as far as they are used, provided with massive inner and outer stiffeners and bevels and have a relatively narrow Build up. to reduce the horizontal attack surface of the vertical earth pressure, and thereby are relatively unfavorable economically. Since such tanks must be used deep underground in the underground installation, there is the disadvantage that in soils with a rocky surface or high groundwater level, the installation is only costly and with great technical effort to accomplish.
  • underground tanks which are provided on the wall with a plurality of vertically and horizontally extending over the outer circumference of the tank and formed outwardly of the wall reinforcing ribs.
  • large tanks with a capacity of 3000 liters and more must still have cylindrical shapes.
  • an underground tank which has an annular tank space which defines a single, centrally located opening and is installed in a horizontal orientation.
  • the surrounding soil not only supports the outside of the tubular body, but also the inner region located in the annular opening, thereby bypassing pressure loads acting on the central unsupported area.
  • the disadvantage is that due to the large annular opening, the capacity of the tank in relation to the space requirement is relatively low.
  • the object of the present invention is therefore to provide a shallow earth tank with a large capacity, which is particularly durable.
  • the storage chamber has at least one Druck devisableitelement which is spaced from the wall area and at least partially hollow and is formed by an inwardly directed protuberance of the soil facing the outside of the underground tank and from the chamber floor extends to the chamber ceiling.
  • the spacing from the wall area in the sense of this invention means an arrangement in which the pressure-force discharge element is not directly connected to the wall area, but is separate from it - at a distance.
  • the stability of the particularly shallow underground tank is realized in the horizontal area by dissipation of the vertical earth pressure via one or more Druck techniqueableitiata.
  • the Druck techniqueableitelement can be filled during installation of the tank in the interior of Druck previously- discharge element with earth, so that the Stanfordableitelement is supported from the inside and so gaining stability.
  • the underground tank is thus supported not only by the soil surrounding the wall area, but also by the earth mass filling the hollow space. Further support elements are therefore not required.
  • Burdens can arise as a result of pressure on the tank earth masses in the form of compressive forces. Further, the Druck practitionerableitieri can counteract a deformation of the bottom surface of the tank, which may arise due to high groundwater, layered water or backwater in the form of buoyancy forces.
  • Also particularly advantageous is an arrangement of a plurality of dome-like Druck phenomenon- dissipation elements, which are distributed uniformly over the base. This will ensure that the elements will maintain the pressure and / or pressure applied from above and below. Drive forces absorb particularly efficient and derived over the chamber surfaces in the surrounding earth area, so that the underground tank is particularly stable and resilient. Since the shallow earth tank is aligned in a horizontal plane, loads acting on the tank base are distributed homogeneously over the entire base and passed through the Kräft vit ele- elements through the pantry through. The chamber surfaces thus do not deform.
  • the wall region of the underground tank has channel-shaped depressions, so-called stiffening beads, which merge into stiffening beads in the chamber bottom. It is favorable in this case if the beads are arranged in a regular rib structure. Due to such a regular bead arrangement, the rigidity of the tank construction is increased to a particularly advantageous extent, whereby the tank can absorb even higher pressure loads and does not twist.
  • the chamber ceiling can be provided with stiffening beads, which contribute to an increased carrying capacity of the underground tank.
  • the stiffening beads in the chamber ceiling offer the advantage that increased pressure forces can act on the surface of the tank without causing cracks or deformations, such as, for example, when covering with heavy soils or when planting.
  • the chamber floor also has stiffening beads, which merge into stiffening beads of the pressure-transmitting elements. It is favorable in this case that the bottom area of the underground tank is stabilized, so that no deformations from below occur at any buoyancy forces.
  • the stiffening beads on the at least one chamber surface of the at least one Druck devisableitelement from star-shaped to extend in the direction of the wall region.
  • the compressive forces acting from above and any buoyancy forces occurring from below are absorbed by the chamber surfaces and guided by means of the star-shaped beads to the force-diverting elements and the wall region, from where they are absorbed by the bottom region.
  • Due to the improved dimensional stability of the Erdtank Installation can be additionally covered even with heavy soils, so with soils of a high density. If, for example, the tank is to be used in loamy soils, it can be covered with the loamy excavated material, which eliminates a purchase of lower density soil material associated with further costs.
  • the length expansions and the width expansions of the chamber surfaces are greater than the height of the wall region, whereby a shallow tank construction is provided.
  • the tank thus has a low installation depth and can also be used for soils that are difficult to excavate and for problematic groundwater conditions.
  • the tank thus has a large capacity with only a small installation depth, since the base can take on larger dimensions than conventional underground tanks, without the stability suffers. Conventional tank systems without force discharge elements would collapse in such a flat design or at least be deformed so that a damage to the tank occurs.
  • the underground tank can be monolithic, that is seamlessly built in one piece. It is advantageous that this provides a permanently sealed tank without welds available. Any leaks and penetrating root system are effectively counteracted. Furthermore, the assembly times are lower than in a built-up of several parts Erdtank, thereby reducing costs.
  • the Erdtank is adapted by its structural features so as to be installed in loamy soil, in rocky ground, in groundwater, shift or backwater in the soil. Expensive excavation heavy soils, any blasting and drainage measures can thus be omitted.
  • Figure 1 a perspective view of the top of an inventive
  • FIG. 2 a perspective view of the underside of that shown in FIG.
  • FIG. 3 shows an exploded view of an embodiment according to the invention in a modular construction
  • Figure 4 is a perspective view of the top of another embodiment of the invention.
  • FIG. 5 a perspective view of the underside of the embodiment shown in FIG.
  • the underground tank 1 comprises a storage chamber 2 which is formed by a wall region 3 and two chamber surfaces, one of which is the chamber bottom 4 and the other is the chamber cover 5.
  • the length expansions and width expansions of the chamber surfaces are greater than the height of the wall region 3 in order to be able to realize the smallest possible installation depth.
  • the height of the wall portion 3 can be arbitrary, preferably it is between 50 and 150 cm. It is particularly favorable, however, if it is 100 cm. This offers the advantage that earth only has to be excavated from surface layers close to the surface and construction costs are minimized, as well as the required technical effort can be reduced.
  • the circumference of the wall portion 3 of the earth tank 1 may take any shape, for example, be substantially circular, oval, square, rectangular or asymmetric.
  • the chamber bottom 4 and the chamber ceiling 5 are adapted in such a way that they surround the wall region 3 from below or from above in a sealing manner.
  • the bottom surface of the underground tank 1 has a rectangular shape in order to be able to withstand a particularly large number of different soil conditions and basic conditions. Piece sizes can be used.
  • these tanks 1 can also be used on land with a tubular floor plan, which can be built only very limited in width. Particularly preferred is a dimensioning with a ratio of length to width and height of 2.4: 1.2: 1.
  • FIG. 1 shows, in particular in a perspective view, the upper side of a ground tank monolithically made of polyethylene; the underside of this tank is shown in FIG.
  • the tank 1 comprises a seamlessly shaped storage chamber 2 which is delimited by a wall region 3, a chamber bottom 4 and a chamber cover 5.
  • the length and width dimensions of the tank 1 are greater than the height of the wall portion 3, whereby the construction assumes a flat geometry.
  • the underground tank 1 has a square base with side lengths of 240 cm and a wall thickness of 8 mm.
  • the height of the wall area 3 is 93 cm.
  • Such an underground tank 1 may further be made of any suitable material for tank systems, such as ferrous materials, steel, fiberglass and plastics.
  • polyethylene is particularly preferred since this ensures particularly easy handling. Since polyethylene is a low-weight material, such a tank 1 is particularly easy to transport and to be inserted into the soil. Likewise, the transport costs are minimized by the light design. Furthermore, no significant corrosion phenomena occur in this material, which could lead to leakage and penetration of root system.
  • Such an embodiment is particularly suitable for groundwater and is thus particularly well suited for installation in soil-near soil layers.
  • polyethylene has a long life, so that the underground tank 1 does not have to be replaced for a long period of time.
  • polyethylene is an environmentally friendly material due to its recyclability.
  • a plurality, preferably nine regularly arranged Druck techniqueableitopathy 6 are present in the storage chamber 2 . These are spaced from the wall portion 3, in an arrangement of three rows of three elements 6.
  • the Druck techniqueableitium 6 consist of a vertical elongated hollow body, which may be designed differently, such as concave or two narrow side interconnected cone - or truncated pyramids.
  • the Druck usedableitium 6 penetrate the Erdtank 1 as a hole with side walls and are filled pressure stable in the installed state with filling material.
  • the Druck technologyableitrion 6 may also be only partially hollow, for example, a web or backfill material at any point of the element 6 interrupts the hole training.
  • the roller-shaped Druck technologyableitrion 6 present here extend from the chamber bottom 4 to the chamber ceiling 5 and are completely hollow.
  • the cavities within Druck technique 6 are connected via openings with the ground surrounding the Erdtank 1 in the installed state.
  • the cavities of the kitableitance 6 can be filled with earth mass when installing the tank 1, whereby on the one hand, the rigidity of the proposedableitide 6 is increased and on the other hand, the pressure acting from the top of the tank 1 pressure forces passed through the storage chamber 2 directly into the underlying soil become.
  • the total force acting on the tank 1 compressive force is thus not exclusively transmitted through the wall portion 3 on the chamber bottom 4 and derived from there into the lying below the tank 1 soil layers, but also on the Druck methodologyableitide 6.
  • the Druck methodology 6 are also conical, thereby the absorbed pressure over the Druckeauabi eitele- menten description is also derived directly into the soil, namely on the amount of earth that fills the cavities.
  • the wall region 3 has stiffening beads 7a.
  • the Versteifungssi bridges 7a in the wall portion 3 are characterized in that they form trough-shaped depressions in the polyethylene wall material, which have a distance of about 30 cm from each other.
  • the beads 7a have a higher wall stiffness result, which is why even when an empty rainwater tank 1 from the outside acting on the wall portion 3 compressive forces can be safely absorbed.
  • the tank 1 is installed in soils with a low density and also filled with rainwater, then the forces acting on the wall area 3 from the inside can also be safely absorbed, without there being a yielding of the soil and a deformation of the wall area 3 comes to the outside.
  • the chamber bottom 4 and the chamber ceiling 5 comprise stiffening beads 7b.
  • the chamber ceiling 5 has arcuate stiffening beads 7b, which are formed folded outwards and to extend in a star shape from the upper openings of the Druck machineableit institute 6 in the direction of the wall portion 3.
  • the vertical earth pressure is introduced into these elements 6 as a result of the relatively large contact surfaces formed by the stiffening beads 7b at the outlet of Druck machineableitense 6.
  • the underground tank 1 can also be used in soils that are particularly heavy, such as loamy soils, and are covered with this soil again. It is also made possible that the tank 1 can be traveled in the installed state with heavier vehicles, without the tank 1 is deformed or cracks occur.
  • the forces acting on the chamber ceiling 5 forces are evenly distributed over the surface by means of the stiffening beads 7b and then discharged to the wall portion 3 and via the Druck structuralableitmaschine 6 in the ground.
  • the chamber bottom 4 and the wall region 3 have stiffening beads 7a, 7b, of which the stiffening beads 7a of the wall region 3 form a right angle in the transitional area between the wall region 3 and the chamber bottom 4 and remain on the chamber bottom 4 for approx 1/10 of the side length of the tank 1 extend.
  • Further stiffening beads 7b of the chamber bottom 4 are everted into the inner region of the storage chamber and extend in a star shape, but offset from one another, from the bottom-side openings of the pressure-discharge conduit. elements 6 out on the wall area 3 to.
  • the stiffening beads 7b which terminate in the surfaces thus have a toothing produced by a rotation deviating from the orthogonal basic orientation.
  • the chamber bottom 4 contains almost no goal volume.
  • the beads 7b in the chamber bottom 4 accomplish that the rainwater tank 1 can be used particularly well in soils with difficult groundwater conditions - such as high ground, layer or backwater.
  • the buoyancy forces acting from below on the tank 1 are distributed here uniformly over the chamber bottom 4 by means of the beads 7b, directed toward the wall region 3 and delivered to the ground comprising the tank 1 and to the other via the pressure discharge elements 6 through the storage chamber discharged above.
  • the vertical earth pressure which contains strong horizontal force components due to the curved reinforcing beads 7b, becomes a counter force to the horizontal earth pressure.
  • a horizontal earth pressure from the wall portion 3 becomes a counterforce to the vertical earth pressure.
  • the underground tank 1 may comprise at least one opening element, via which the tank interior of the underground tank 1 is connected to the earth's surface, such as a manhole, an inlet or outlet opening or even a combination of these ⁇ ffhungs institute.
  • the inlet or outlet openings can be connecting shafts, via which a water extraction and a water supply can take place.
  • a dome shaft 8 as a manhole addition to the entry for maintenance purposes or cleaning of the tank 1 is also possible.
  • a dome shaft 8 is arranged in a corner of the rainwater tank 1, which allows access for any maintenance.
  • the Erdtank 1 according to the invention is constructed in a modular manner.
  • the individual modules can be detachably or non-releasably sealingly connected to one another via any connection means, for example by means of weld seams, bonds, connecting clamps or plug-in connections.
  • connection means for example by means of weld seams, bonds, connecting clamps or plug-in connections.
  • a caused by lever forces from the vertical earth pressure rotation of the angular stiffening beads 7b, 7c and thus a yielding of the bottom surface is prevented by the geometry of the hollow Druck devisableitelements 6 and the pressure-stable backfilling of the cavity.
  • two inwardly offset surfaces 9 are integrated laterally of the dome shaft 8 in the wall portion 3, can be inserted into the openings to receive inlets and outlets for in and out flowing rainwater.
  • FIGs 4 and 5 show two perspective views of another embodiment of the earth tank 1 according to the invention, comprising the same elements as in Figures 1 and 2.
  • the tank 1 has no square, but a rectangular base. Accordingly, in the storage chamber 2, only one pressure-element discharge row with three elements 6 is arranged. This embodiment shows that the same advantageous effects are achieved even with different sizes and designs.
  • the earth tank 1 according to the invention is adapted so that it can be driven in the installed state of heavier vehicles, so it can be installed under driveways without the tank 1 damaged or in his

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Sewage (AREA)

Abstract

L'invention concerne une citerne enterrée (1), en particulier pour la réception des eaux de pluie, des eaux usées, de produits chimiques et d'autres liquides, ladite citerne comportant une chambre de réserve (2), la chambre de réserve (2) comprenant une paroi (3) et deux surfaces de chambre, dont une surface de chambre est réalisée sous forme de fond de chambre (4) et l'autre surface de chambre est réalisée sous forme de plafond de chambre (5). La citerne est caractérisée en ce que la chambre de réserve (2) présente au moins un élément (6) d'évacuation des forces de pression, qui est espacé de la paroi (3) et est réalisé au moins en partie de manière creuse et est formé par un retournement dirigé vers l'intérieur du côté extérieur de la citerne enterrée (1) tourné vers la terre et s'étend du fond de chambre (4) jusqu'au plafond de chambre (5).
PCT/EP2007/006620 2006-07-21 2007-07-19 Citerne enterrée WO2008009483A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202006011483.1 2006-07-21
DE202006011483U DE202006011483U1 (de) 2006-07-21 2006-07-21 Erdtank

Publications (1)

Publication Number Publication Date
WO2008009483A1 true WO2008009483A1 (fr) 2008-01-24

Family

ID=37068505

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/006620 WO2008009483A1 (fr) 2006-07-21 2007-07-19 Citerne enterrée

Country Status (2)

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DE (1) DE202006011483U1 (fr)
WO (1) WO2008009483A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011002705U1 (de) 2011-02-14 2011-04-14 Emano Kunststofftechnik Gmbh Erdtank aus Kunststoff

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2924697B1 (fr) * 2007-12-07 2012-09-21 Maya Group Cuve destinee a etre enterree
EP2163694A3 (fr) 2008-09-16 2013-01-16 Otto Graf GmbH Kunststofferzeugnisse Réservoir et son procédé de construction
DE202008016640U1 (de) 2008-12-16 2009-03-19 Greenlife Gmbh Erdtank zur Aufnahme von Flüssigkeiten
BR112013014850B1 (pt) 2011-02-14 2020-12-15 Totetu Mfg. Co. Ltd Composto de armazenagem, tanque de armazenagem e tanque de armazenagem permeável usando o mesmo
DE202012103630U1 (de) 2012-09-21 2014-01-02 Bodo Richter Lagertank zum Aufnehmen von Flüssigkeiten

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4363732A (en) * 1980-05-22 1982-12-14 Hancor, Inc. Inlet and outlet baffle structure for sewage treatment tanks
WO2004016867A1 (fr) * 2002-08-14 2004-02-26 Richter Guenter Contenant en plastique pour recueillir l'eau de pluie

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4363732A (en) * 1980-05-22 1982-12-14 Hancor, Inc. Inlet and outlet baffle structure for sewage treatment tanks
WO2004016867A1 (fr) * 2002-08-14 2004-02-26 Richter Guenter Contenant en plastique pour recueillir l'eau de pluie

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011002705U1 (de) 2011-02-14 2011-04-14 Emano Kunststofftechnik Gmbh Erdtank aus Kunststoff

Also Published As

Publication number Publication date
DE202006011483U1 (de) 2006-09-21

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