EP0758617B1 - Storage tank suitable for resisting the upthrust due to buoyancy - Google Patents

Storage tank suitable for resisting the upthrust due to buoyancy Download PDF

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Publication number
EP0758617B1
EP0758617B1 EP96401377A EP96401377A EP0758617B1 EP 0758617 B1 EP0758617 B1 EP 0758617B1 EP 96401377 A EP96401377 A EP 96401377A EP 96401377 A EP96401377 A EP 96401377A EP 0758617 B1 EP0758617 B1 EP 0758617B1
Authority
EP
European Patent Office
Prior art keywords
tank
base
less
buoyancy
resisting
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
EP96401377A
Other languages
German (de)
French (fr)
Other versions
EP0758617A1 (en
Inventor
Joel Bouillis
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.)
Metallurgique Liotard Freres SA Ste
Original Assignee
Metallurgique Liotard Freres SA Ste
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 Metallurgique Liotard Freres SA Ste filed Critical Metallurgique Liotard Freres SA Ste
Publication of EP0758617A1 publication Critical patent/EP0758617A1/en
Application granted granted Critical
Publication of EP0758617B1 publication Critical patent/EP0758617B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65D88/76—Large containers for use underground
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/38—Foundations for large tanks, e.g. oil tanks

Definitions

  • the invention relates to tanks, in particular to those intended to be buried.
  • the invention breaks with this technique by a tank comprising a substantially cylindrical tank resting on a base and secured to the latter in particular by straps.
  • the ratio of the surface of the projection, on a horizontal plane and in the vertical direction, of the tank to the surface of the base is less than 0.8 and in particular to 0.6 in particular for tanks of '' a volume of approximately 2m 3 .
  • the tank consists of a grating of blades.
  • the grating also facilitates the stowage of the tank to the base which is preferably carried out by straps but can also be done by bolting or other.
  • the tank according to the invention comprises a tank 1 resting by four feet 2 on a base 3 formed under the form of a grating of blades.
  • the tank or its envelope could be in direct contact with the grating 3 without interposition of feet by providing simple wedges.
  • the tank is secured by straps 4 to grating 3.
  • the ratio of the area of the projection, on the grating 3 and in the vertical direction, from the tank on the base surface is less than 0.6.

Abstract

The cistern comprises a cylindrical tank (1). The tank is mounted on a base (3) made from slats or of a plastics material, which has a density of less than 1.2. The area of the base is such that the area of the tank projected onto it is less than 0.8:1, preferably less than 0.6:1. The tank is attached to the base by straps (4). A base of the area and made from the materials described receives sufficient pressure from the ground to resist any upward thrust.

Description

L'invention se rapporte à des citernes, notamment à celles destinées à être enterrées.The invention relates to tanks, in particular to those intended to be buried.

Lorsque ces citernes sont enterrées dans un terrain humide, elles ont tendance à remonter sous l'effet de la poussée d'Archimède. A l'heure actuelle le problème est résolu en ancrant la citerne sur des dalles en béton dont le poids est tel que la densité de l'ensemble de la citerne et des dalles en empêche la remontée. Une telle façon de faire est coûteuse que les dalles soient faites sur place comme le prévoit le GB-A-210 6168 ou qu'elles soient préfabriquées et mises en place au moment de l'installation de la citerne.When these tanks are buried in land wet, they tend to rise under the effect of Archimedes thrust. At the moment the problem is resolved by anchoring the tank on concrete slabs, the weight is such that the density of the entire tank and slabs prevent its ascent. Such a way of doing things is expensive that the tiles are made on site like the provides for GB-A-210 6168 or be prefabricated and installed when the tank was installed.

L'invention rompt avec cette technique par une citerne comprenant une cuve sensiblement cylindrique reposant sur un socle et arrimée à celui-ci notamment par des sangles. Suivant l'invention, le rapport de la surface de la projection, sur un plan horizontal et suivant la direction verticale, de la cuve à la surface du socle est inférieur à 0,8 et notamment à 0,6 en particulier pour des citernes d'un volume de 2m3 environ.The invention breaks with this technique by a tank comprising a substantially cylindrical tank resting on a base and secured to the latter in particular by straps. According to the invention, the ratio of the surface of the projection, on a horizontal plane and in the vertical direction, of the tank to the surface of the base is less than 0.8 and in particular to 0.6 in particular for tanks of '' a volume of approximately 2m 3 .

On ne cherche plus à lester la cuve mais à disposer autour de celle-ci sur le socle d'une surface suffisante pour que la poussée des terres s'oppose efficacement à la remontée de la citerne.We no longer seek to ballast the tank but to have around it on the pedestal with sufficient surface to that the push of the land effectively opposes the ascent of the tank.

Dans ces conditions, il n'est plus nécessaire de constituer le socle en béton ou autre matériau de grande densité. On peut se contenter d'une matière de masse volumique inférieure à 1,2 bien plus facile à mettre en place et moins coûteuse, ce peut être notamment une matière plastique par exemple sous forme de profilés réalisés à partir de matériaux recyclés.In these conditions, it is no longer necessary to constitute the base of concrete or other large material density. We can be satisfied with a mass material volume less than 1.2 much easier to set up and less expensive, it can in particular be a material plastic for example in the form of profiles made to from recycled materials.

De préférence, pour donner néanmoins une résistance mécanique suffisante au socle et lui permettre de bien supporter la citerne, il est constitué d'un caillebotis de lames. Le caillebotis facilite aussi l'arrimage de la citerne au socle qui s'effectue de préférence par des sangles mais peut s'effectuer également par boulonnage ou autre.Preferably, to give resistance nevertheless sufficient mechanical support and allow it to work well support the tank, it consists of a grating of blades. The grating also facilitates the stowage of the tank to the base which is preferably carried out by straps but can also be done by bolting or other.

Au dessin annexé, donné uniquement à titre d'exemple :

  • La figure 1 est une vue en coupe d'une citerne enterrée suivant l'invention et
  • la figure 2 en est une vue en perspective.
    • In the attached drawing, given solely by way of example:
  • Figure 1 is a sectional view of a buried tank according to the invention and
  • Figure 2 is a perspective view.

    • La citerne suivant l'invention comprend une cuve 1 reposant par quatre pieds 2 sur un socle 3 constitué sous la forme d'un caillebotis de lames. La cuve ou son enveloppe pourrait être en contact directement avec le caillebotis 3 sans interposition de pieds en prévoyant de simples cales.The tank according to the invention comprises a tank 1 resting by four feet 2 on a base 3 formed under the form of a grating of blades. The tank or its envelope could be in direct contact with the grating 3 without interposition of feet by providing simple wedges.

    La cuve est arrimée par des sangles 4 au caillebotis 3. Le rapport de la surface de la projection, sur le caillebotis 3 et suivant la direction verticale, de la cuve à la surface du socle est inférieur à 0,6.The tank is secured by straps 4 to grating 3. The ratio of the area of the projection, on the grating 3 and in the vertical direction, from the tank on the base surface is less than 0.6.

    Claims (4)

    1. Cistern comprising a substantially cylindrical tank (1) resting on a base (3) and secured thereto, characterized in that the ratio of the surface of the projection, on a horizontal plane and following the vertical direction, of the tank (1) to the surface of the base (3) is less than 0.8 and preferably less than 0.6.
    2. Cistern according to claim 1, characterized in that the base is made of a material, the density of which is less than 1.2.
    3. Cistern according to claim 1 or 2, characterized in that the base consists of a grating of strips.
    4. Cistern according to one of the preceding claims, characterized in that the base is made of a plastics material.
    EP96401377A 1995-08-16 1996-06-21 Storage tank suitable for resisting the upthrust due to buoyancy Expired - Lifetime EP0758617B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR9509823 1995-08-16
    FR9509823A FR2737887B1 (en) 1995-08-16 1995-08-16 TANK CAPABLE OF RESISTING ARCHIVED DRIVE

    Publications (2)

    Publication Number Publication Date
    EP0758617A1 EP0758617A1 (en) 1997-02-19
    EP0758617B1 true EP0758617B1 (en) 1999-09-22

    Family

    ID=9481929

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP96401377A Expired - Lifetime EP0758617B1 (en) 1995-08-16 1996-06-21 Storage tank suitable for resisting the upthrust due to buoyancy

    Country Status (6)

    Country Link
    EP (1) EP0758617B1 (en)
    AT (1) ATE184852T1 (en)
    DE (1) DE69604351T2 (en)
    DK (1) DK0758617T3 (en)
    ES (1) ES2137639T3 (en)
    FR (1) FR2737887B1 (en)

    Families Citing this family (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2787477B1 (en) * 1998-12-18 2001-02-02 Roger Simonny ANCHORING BASE STRUCTURE FOR UNDERGROUND TANKS CONTAINING LOW DENSITY PRODUCTS SUCH AS HYDROCARBONS
    FR2809753B1 (en) * 2000-05-31 2002-08-16 Gaz Liquefies Ind METHOD AND DEVICE FOR ANCHORING A LARGE VOLUME CONTAINER IN A PIT
    DE20307687U1 (en) * 2002-12-27 2003-08-28 Bagom Ind Gmbh Buoyancy protection for buried liquid gas containers
    DE202018105827U1 (en) * 2018-10-11 2018-11-27 SKG Umwelttechnik GmbH & Co. KG Buoyancy protection for an earth-covered container and earth-covered container to be erected with such a buoyancy protection

    Family Cites Families (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US3678868A (en) * 1969-04-03 1972-07-25 Kyowa Electric Pallet
    FR2297786A1 (en) * 1975-03-28 1976-08-13 Laurencot Jean Tank for underground storage - has lifting eye on top and stays on sides attached to lines fixed in concrete foundation
    GB2106168A (en) * 1981-09-15 1983-04-07 Textiles Limited Spa Securing a body to a base of settable material

    Also Published As

    Publication number Publication date
    EP0758617A1 (en) 1997-02-19
    FR2737887A1 (en) 1997-02-21
    FR2737887B1 (en) 1997-09-19
    DE69604351T2 (en) 2000-03-30
    DE69604351D1 (en) 1999-10-28
    DK0758617T3 (en) 1999-12-20
    ES2137639T3 (en) 1999-12-16
    ATE184852T1 (en) 1999-10-15

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