Impermeable and thermally insulated tank comprising a metal membrane that is corrugated in orthogonal folds

An impermeable and thermally insulated tank built into a structure that includes a load-bearing wall, said tank having a tank wall attached to said load-bearing wall, the tank wall comprising:

• a thermally insulated barrier held on the load-bearing wall and made up of cuboid thermally insulated blocks, juxtaposed in parallel rows separated from one another by gaps,
• an impermeable barrier carried by the thermally insulated barrier, said impermeable barrier comprising a metal membrane formed of metal sheets welded together sealingly,
• at least some of the insulating blocks of the thermally insulated barrier carrying, on the face of same opposite the load-bearing wall at least two substantially orthogonal metal connecting strips, arranged parallel to the sides of the insulating block, the sheets of the metal membrane carried by said insulating block being welded to said strips, said connecting strips being rigidly connected to the insulating block bearing same,
• a plurality of sheets of the metal membrane each having at least two orthogonal folds parallel to the sides of the thermal insulating blocks, said folds being inserted in the gaps formed between the insulating blocks;
• wherein each insulating block of the thermally insulated barrier has two series of orthogonal slots, each of said series having slots arranged parallel to two opposing sides of the insulating block, and in that the sheets of the metal membrane each have two series of supplementary folds, each of said series of supplementary folds having folds orthogonal to the folds in the other series, parallel to one of the two folds inserted in the gaps, and inserted into the slots of one of the series of slots formed in the insulating block.

An impermeable and thermally insulated tank built into a structure that includes a load-bearing wall, said tank having a tank wall attached to said load-bearing wall, the tank wall comprising:

• a thermally insulated barrier held on the load-bearing wall and made up of cuboid insulating blocks, juxtaposed in parallel rows separated from one another by gaps,
• an impermeable barrier carried by the thermally insulated barrier, said impermeable barrier comprising a metal membrane formed of metal sheets welded together sealingly,
• at least some of the insulating blocks of the thermally insulated barrier carrying, on the face of same opposite the load-bearing wall at least two substantially orthogonal metal connecting strips, arranged parallel to the sides of the insulating block, the sheets of the metal membrane carried by said insulating block being welded to said strips, said connecting strips being rigidly connected to the insulating block bearing same,
• a plurality of sheets of the metal membrane each having at least two orthogonal folds parallel to the sides of the thermal insulating blocks, said folds being inserted in the gaps formed between the insulating blocks;
• wherein each insulating block of the thermally insulated barrier has a slot parallel to two opposing sides of the insulating blocks and in which the metal membrane has a second plurality of sheets, each of the sheets in the second plurality having a fold inserted in a slot formed in an insulating block and a fold inserted in a gap formed between two insulating blocks.