Inground fluid storage tank and method of erection thereof
OwnerJoseph Barturinventor
Life of this patent
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Abstract
An inground storage tank, particularly for storage of oil and inflammable liquids comprises a concrete wall enclosing a steel shell and surrounded by a water pervious sheet of plastics material and a mantle of gabions. The gabions allow water drainage to drainage ducts in the foundations of the wall. The steel shell has a conical roof structure welded thereto and a layer of earth on the roof. Columns within the shell support the roof. The tank is constructed by constructing the foundations and drainage ducts and then building a portion of wall, and shell, filling the shell with water, surrounding the wall with plastics sheet and gabions and repeating these steps until the required height is reached. The roof is then secured to the shell.
Claims13
An inground tank comprising a drainage shaft, a foundation having radial and peripheral trenches connected to said drainage shaft, an inner steel shell, an outer mantle of gabions and a concrete wall having horizontal rims cast between the steel shell and the gabions, each ring of gabions being connected separately to the drainage shaft, a polyethylene sheet, said gabions having an inner surface covered before casting the concrete by said polyethylene sheet, a plurality of sloped beams, a conical steel shell constructed on said sloped beams and welded to said steel shell, a roof having a central portion, central columns supporting said central portion which comprises prefabricated concrete segments, the complete tank being covered by a layer of earth.
An inground fluid storage tank comprising a foundation, a metal shell, a wall structure mounted on said foundation and enclosing said metal shell, said metal shell comprising shell walls and a roof secured thereto, soil water disposal means, drainage ducts in said foundation connected to said soil water disposal means, a plurality of generally annular rings of gabions surrounding said wall structure and through which water may pass, said rings of gabions being separated from each other by intermediate outwardly projecting rims of said wall structure, said rims having a predetermined thickness and extending outwardly beyond the outer surface of said rings of gabions, said rings of gabions being in fluid flow connection with said soil water disposal means, and a sheet of water impervious material disposed between said rings of gabions and said wall structure including said rims.
Dependencies are inferred from the claim text.