EP1067243B1 - Bassin de confinement pour eaux de surface et méthode de construction dudit bassin - Google Patents

Bassin de confinement pour eaux de surface et méthode de construction dudit bassin Download PDF

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Publication number
EP1067243B1
EP1067243B1 EP00112926A EP00112926A EP1067243B1 EP 1067243 B1 EP1067243 B1 EP 1067243B1 EP 00112926 A EP00112926 A EP 00112926A EP 00112926 A EP00112926 A EP 00112926A EP 1067243 B1 EP1067243 B1 EP 1067243B1
Authority
EP
European Patent Office
Prior art keywords
basin
sealing
trench
ballast
water
Prior art date
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.)
Expired - Lifetime
Application number
EP00112926A
Other languages
German (de)
English (en)
Other versions
EP1067243A3 (fr
EP1067243A2 (fr
Inventor
Peter Dipl.-Ing. Mohr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Max Aicher Recycling GmbH
Original Assignee
Max Aicher Recycling 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 Max Aicher Recycling GmbH filed Critical Max Aicher Recycling GmbH
Publication of EP1067243A2 publication Critical patent/EP1067243A2/fr
Publication of EP1067243A3 publication Critical patent/EP1067243A3/fr
Application granted granted Critical
Publication of EP1067243B1 publication Critical patent/EP1067243B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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 tank sealed with a plastic sealing strip for the retention of surface water in a region with a high groundwater level, wherein the sealing sole is below the groundwater level and to a method for producing such a basin.
  • the invention has the object to provide a way to reduce the labor and cost overhead for both the establishment, as well as for the maintenance of such a Storm.
  • this object is achieved by a trough-shaped retention basin according to claim 1.
  • a method for producing such a basin is specified in claim 7.
  • the basic idea of the invention is to arrange the ballasting of the pelvic seal to prevent the effects of buoyancy by the groundwater in an empty tank not within, but below the actual basin in a likewise sealed against the groundwater tub.
  • the ballast material used to fill this tub is so on the one hand by the seal against the groundwater and on the other hand by the actual pelvic seal as enclosed in a pillow so that it stays dry and does not lose its function as ballast.
  • no reduction for buoyancy needs to be recognized, which significantly reduces the required excavation depth for this area.
  • the ballast bed can not be contaminated by some contaminated surface water.
  • the tank seal As a double seal of two plastic sheets with an intermediate layer of a permeable material, in the intermediate layer, a system of piping with self-starting pumps is installed, which is used to control a liquid flow either serve from the outer or the inner region of the basin (US-A 5 080 528).
  • the inner geomembrane is covered in the usual way by a layer of clay as a mechanical protection, resulting in basins in areas with high groundwater level to the disadvantages described above.
  • the invention opens up a further, very advantageous possibility for the production of such a basin, namely without the need for lowering the groundwater level. So it is readily possible to make the excavation for the pool and located below the pool basin for the ballast bed under water, interpret the plastic waterproofing membrane for sealing the tub against the groundwater on the water-filled pit and they by continuous bed of ballast material under displacement to lower the water filling the pit. The profile of the basin to be produced is then formed in the ballast bed, so that the actual tank seal can be installed and installed in the dry.
  • the invention also opens up a further advantage, namely when, as filling material for the ballast bed for buoyancy protection, slag from electric steel works, so-called electric furnace slag with a weight greater 30 kN / m 3 is used. Electric furnace slag contains about 30 to 35% iron and is therefore very heavy. Due to this composition, this material has a 50% higher installation density than mineral material. This results in the advantage that the required excavation can be considerably reduced compared to a conventional ballast of mineral material; This saves about one third of the otherwise necessary excavation depth.
  • a surface with a geometrically simple shape extending beyond the later basin size is first excavated about 1 to 2 m beyond the planned basin sole 2, so that a trough 3 with a sole 4 and slopes 5 is created, whose surfaces are smoothed.
  • the resulting excavation space 6 fills up to the natural groundwater level 7 with water.
  • precaution septic pipes are designed and provided suction hoses for pumps.
  • a sealing tarpaulin 8 produced at the factory or in addition to the basin 1 to be made of flexible plastic sealing strips welded together is pulled over the excavation space 6 and provisionally secured.
  • stabilizing elements 10 can be designed which prevent the first ballast layer from slipping off during the subsequent application of the ballast fill 11 (FIG. 2).
  • the ballast layer 11 is first installed on the excavation floor 4 and then along the slopes 5 with an excavator, which has a boom with appropriate range.
  • the groundwater displaced by the progressive ballast pushes itself outwards with a surface of rolligem material; in a substrate made of cohesive material, it is sucked by pumps through the previously laid below the sealing tarpaulin 8 seepage pipes and fed into a receiving water. Lies the sealing tarpaulin 8 under the weight of the ballast bed 11 over the entire surface of the substrate 4, 5, the pumps can be switched off and removed.
  • a closed tube 13 is laid in the region of a maintenance and inspection shaft 12 along the embankment and initially secured provisionally outside the sealing tarpaulin 8; if necessary, it is used to extract water which has penetrated approximately into the ballast bed 11.
  • a second short piece of pipe 14 is used to ventilate the ballast 11, especially when water is sucked out.
  • the inlet pipe 15 to the basin and the outlet pipe 16 are guided above the groundwater level 7 through the sealing tarpaulin 8 and sealed in a conventional manner.
  • embankment surfaces 5 can this be made around the pipes around concrete collars and the surfaces are smoothed.
  • the sealing tarpaulin 8 is fastened in a manner known per se with clamping rails and sealing strip.
  • the outer edge of the sealing tarpaulin 8 is laid in an anchor trench 17, which is then filled and the filling material is compacted.
  • a circumferential wall 18 is arranged, which should be about 15 cm higher than the rear edge of the sealing tarpaulin 8 in the anchor trench 17. This avoids that dammed water from the area under the tank seal 20th can seep.
  • the desired shape of the retention basin 1 is prepared with additional bulk material and covered to equalize the surfaces with similar sand material.
  • On the sand layer is then laid as a lower protective layer 19 for the pelvic seal a non-woven mat with 500 g / m 2 basis weight.
  • the plastic sealing strip of the tank seal 20 is welded to the sealing tarpaulin 8 behind the surrounding earth ramp 18 at the edge of the pool by manual welding (21) in order to prevent the ingress of leachate.
  • the pelvic seal 20 of the retention basin 1 is protected towards the pelvic side in a manner known per se by nonwoven mats 22 against damage by abrasion or sharp-edged stones.
  • a clawing mat 23 can be laid to stabilize the Bodenandeckung 24 at least in the field of embankments.
  • an approximately 10 cm thick concrete layer 25 is installed as a protection against mechanical stress during maintenance in a honeycomb, serving as formwork mat.
  • the slopes are covered with a 10 to 15 cm thick bottom layer 24 and then landscaped.
  • the pool drain 16 is carried out in a conventional manner via perforated pipes 26, which are coated with filter fabrics and nonwoven fabric and connect to tight pipes 27.
  • the pipes 26 are mounted at half the depth of the basin 1 on plastic supports; they can be flowed on from all sides, which reduces the flow velocity in the basin and thus serves the sludge retention.
  • This construction can be maintained without much effort; in case of damage only small amounts of contaminated material have to be disposed of.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Sewage (AREA)
  • Aftertreatments Of Artificial And Natural Stones (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Processing Of Solid Wastes (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)

Claims (9)

  1. Bassin (1) de retenue des eaux de surface en forme de cuvelage, étanché par une bande d'étanchéité en matière plastique, dans une région avec une nappe phréatique à niveau élevé,
    dans lequel la semelle d'étanchement est située en dessous du niveau de la nappe phréatique et
    dans lequel un lestage est prévu contre les effets de la poussée verticale exercée par les eaux souterraines sur le système d'étanchement du bassin lorsque celui-ci est vide,
    caractérisé en ce que
    le lestage est formé par un remblai (11), qui contient des scories de four électrique et qui est disposé en dessous du bassin (1) dans un cuvelage (3) qui, pour sa part, est étanché contre les eaux souterraines par une bâche d'étanchéité (8), et en ce que
    la bâche d'étanchéité (8) pour l'étanchement du cuvelage (3), ainsi qu'un système d'étanchement (20) du bassin (1) sont assemblés, en particulier soudés, de manière étanche l'un à l'autre au niveau des bords en incluant le matériau du lestage.
  2. Bassin en forme de cuvelage selon la revendication 1, caractérisé en ce que les bords de la bâche d'étanchéité (8) sont disposés dans un fossé d'ancrage (17) qui est réalisé en dehors du bassin.
  3. Bassin en forme de cuvelage selon la revendication 2, caractérisé en ce qu'une enceinte (18) périphérique, au-dessus de laquelle passe la bâche d'étanchéité (8), est disposée entre le fossé d'ancrage (17) et le bord du cuvelage (3).
  4. Bassin en forme de cuvelage selon la revendication 3, caractérisé en ce que la bâche d'étanchéité (8) pour l'étanchement du cuvelage (3) et le système d'étanchement (20) du bassin (1) sont assemblés l'un à l'autre dans la zone de l'enceinte (18).
  5. Procédé de réalisation d'un bassin de retenue selon l'une quelconque des revendications 1 à 4, caractérisé par les étapes suivantes :
    - la fouille (6) pour le bassin de retenue (1) à construire est excavée sans confinement ou abaissement du niveau de la nappe phréatique (7),
    - une bâche d'étanchéité (8) formant un système d'étanchement par rapport au sol est posée sur la surface de l'excavation (4, 5) et reçoit un matériau de lestage (11), formé par un remblai de scories de four électrique, jusqu'à ce qu'elle s'affaisse sur la semelle de l'excavation (4) moyennant le refoulement de l'eau contenue dans la fouille,
    - le profil du bassin de retenue (1) à construire est formé dans la surface du matériau de lestage (11),
    - une bande d'étanchement formant le système d'étanchement du bassin (20) est posée sur la surface du matériau de lestage (11),
    - la bâche d'étanchéité (8) et le système d'étanchement du bassin (20) sont assemblés, en particulier soudés, de manière étanche l'un à l'autre au niveau des bords en incluant le matériau du lestage (11).
  6. Procédé selon la revendication 5, caractérisé en ce que des éléments de stabilisation (10), destinés à fixer le matériau de lestage (11), sont posés sur la bâche d'étanchéité (8) au moins dans la zone de la semelle du bassin (2).
  7. Procédé selon l'une quelconque des revendications 5 à 6, caractérisé en ce qu'une couche de protection et/ou couche de lestage est déposée sur la semelle du bassin (2) et/ou les parois latérales talutées du bassin (1).
  8. Procédé selon la revendication 7, caractérisé en ce que la couche de protection et/ou couche de lestage dans la zone de la semelle du bassin (2) est formée par une plaque en béton (25).
  9. Procédé selon la revendication 8, caractérisé en ce que la couche de protection et/ou couche de lestage dans la zone des parois latérales talutées est formée par un matériau du sol (24).
EP00112926A 1999-07-05 2000-06-20 Bassin de confinement pour eaux de surface et méthode de construction dudit bassin Expired - Lifetime EP1067243B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19930699A DE19930699A1 (de) 1999-07-05 1999-07-05 Becken zur Rückhaltung von Oberflächenwasser
DE19930699 1999-07-05

Publications (3)

Publication Number Publication Date
EP1067243A2 EP1067243A2 (fr) 2001-01-10
EP1067243A3 EP1067243A3 (fr) 2001-05-23
EP1067243B1 true EP1067243B1 (fr) 2006-09-06

Family

ID=7913528

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00112926A Expired - Lifetime EP1067243B1 (fr) 1999-07-05 2000-06-20 Bassin de confinement pour eaux de surface et méthode de construction dudit bassin

Country Status (7)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011003381U1 (de) 2011-03-01 2013-01-16 Yevda Yakubov Vorrichtung zur Vorbeugung gegen Überschwemmungen
DE102011012777B4 (de) 2011-03-01 2015-12-24 Yevda Yakubov Vorrichtung und Verfahren zur Vorbeugung gegen Überschwemmungen
NL1040236C2 (nl) * 2013-06-03 2014-12-08 Haner Infra Innovatie B V Tunnelopstelling.
WO2019234465A1 (fr) 2018-06-06 2019-12-12 Yevda Yakubov Dispositif et procédé pour la prévention contre les inondations

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPS6058330B2 (ja) * 1982-12-06 1985-12-19 シ−アイ化成株式会社 遮水シ−トの敷設工法
DE4002090A1 (de) * 1990-01-25 1991-08-01 Fred Dipl Ing Petersen Verfahren zur restaurierung stehender, eutrophierter oberflaechengewaesser durch sedimentabdeckung
IT1279074B1 (it) * 1995-11-24 1997-12-04 Sibelon Srl Sistema per la realizzazione di impermeabilizzazioni di opere idrauliche con fogli rigidi in materiale sintetico

Also Published As

Publication number Publication date
EP1067243A3 (fr) 2001-05-23
ATE338851T1 (de) 2006-09-15
EP1067243A2 (fr) 2001-01-10
ES2269044T3 (es) 2007-04-01
CZ292305B6 (cs) 2003-09-17
DE19930699A1 (de) 2001-01-11
DK1067243T3 (da) 2007-01-15
HUP0002563A2 (hu) 2001-04-28
HU227023B1 (en) 2010-05-28
CZ20002460A3 (cs) 2001-02-14
HU0002563D0 (en) 2000-09-28
HUP0002563A3 (en) 2002-03-28
DE50013420D1 (de) 2006-10-19

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