| abstract |
The apparatus for storing liquefied gas in a cavity formed by an outer cell 10 made of rock or concrete comprises a gas tank 2. The tank 2, made of concrete and insulated, is completely or partially surrounded by a material 5 for filling the space between the tank 2 and the rock or concrete cell 10. The material 5 is itself hermetic, ie has a low permeability, and can be combined with the material 5 or with one or more sealing membranes 13 in an external or internal material. The device may be located completely or partially in a loose sole 8 which completely or partially surrounds the cell 10 or is located on the ground surface. |