Abstract: A liquefied gas storage facility has a sealed and thermally-insulating tank. A bottom wall of the tank includes a plurality of angular sectors which are images of each other through rotation by a predetermined angle about a vertical axis, the predetermined angle being equal to k.360°/N, where k is a positive integer. A vertical wall of the tank has a vertical row of planar insulating wall modules disposed on each vertical load-bearing section of a load-bearing structure of the tank. An azimuthal angular deviation with respect to said vertical axis between two rows of planar insulating wall modules disposed on two adjacent vertical load-bearing sections is equal to 360°/N, preferably with an accuracy better than 5 mm.

Abstract: The present invention concerns a method for controlling the trim of a transport ship without seawater ballast (1), having a width considered along a transverse axis (y?y) of the ship (1), said ship (1) having an unladen weight Pv between 20% and 60% inclusive of its total weight PT, allowing for a given maximum load weight capacity PTC, in accordance with the formula: PT=Pv+PTC at least one first and one second closed liquid tank (3? or 3?) not communicating with the sea, the total weight PRT of which when entirely filled with a liquid of specific gravity equal to 1 represents between 2% and 8%, preferably between 3% and 6%, of said unladen weight PV, said tanks (3?, 3?) being in communication via at least one line to transfer liquid from one to the other and being at a distance d from one another, considering the respective geometric center of each of said tanks (3?, 3?), at least equal to 1/2 when the tanks (3?, 3?) are positioned facing one another essentially along the transverse axis (y?y): d?1/2.

Abstract: A securing device for securing a pipe in a housing, which has a cylindrical collar, at least three securing arms, each securing arm containing a proximal arm portion mounted on the cylindrical collar, a distal arm portion bearing a bearing pad, the bearing pad containing a bearing surface facing away from the collar and intended to collaborate with a wall of the housing in which at least one of the securing arms contains a guideway capable of translationally guiding the distal arm portion with respect to the proximal arm portion, an elastic member being coupled to the guideway so as to be able to apply a return force that pushes the distal arm portion away from the proximal arm portion.

Abstract: A securing device for securing a pipe in a housing, which has a cylindrical collar, at least three securing arms, each securing arm containing a proximal arm portion mounted on the cylindrical collar, a distal arm portion bearing a bearing pad, the bearing pad containing a bearing surface facing away from the collar and intended to collaborate with a wall of the housing in which at least one of the securing arms contains a guideway capable of translationally guiding the distal arm portion with respect to the proximal arm portion, an elastic member being coupled to the guideway so as to be able to apply a return force that pushes the distal arm portion away from the proximal arm portion.

Abstract: A liquefied natural gas container including a loadbearing structure and an impermeable and thermally insulated tank designed to contain liquefied natural gas. Each tank wall having in succession, in a direction of a thickness, proceeding from an inside of the tank to an outside, a primary impermeable barrier, a primary thermally insulating barrier, a secondary impermeable barrier, and a secondary thermally insulating barrier. The secondary impermeable barrier of a vertical wall includes a first impermeable sheet at the top of the wall and a connecting device which impermeably connects the first impermeable sheet to the loadbearing structure. The connecting device includes a first metal plate parallel to the first impermeable sheet, and a second impermeable sheet which is on the one hand bonded to the first impermeable sheet, and on the other hand connected to the first metal plate.

Abstract: A fluidtight tank including a bearing structure, a fluidtight barrier, the fluidtight barrier having a polygonal, cylindrical shape and including a vertical wall and a bottom wall, in which the said vertical wall of the fluidtight barrier has a plurality of vertical panels the bearing structure surrounding the vertical wall, and in which the bottom wall includes a plurality of rectangular components arranged in sectors that are the image of one another but rotated, the edges of the rectangular components of one of the sectors being respectively parallel and perpendicular to one of the vertical panels, wherein the number of the vertical panels is twice the number of the sectors.

Abstract: A cylindrical structure includes a vertical wall (3) and a bottom wall (2), the bottom wall having a plurality of sectors (4) which are rotated images of each other, each sector including a plurality of adjacent rectangular elements (8), characterized by the fact that the bottom wall has the shape of a regular polygon whereof each side (6) corresponds to one of the sectors, the edges of the rectangular elements of one sector being respectively perpendicular and parallel to the side of the polygon corresponding to the sector.

Abstract: Fluidtight and/or thermally insulated tank (1) comprising a bearing structure (4), a fluidtight barrier and/or a thermally insulating barrier, the said fluidtight barrier and/or the said thermally insulating barrier being of cylindrical shape and comprising a vertical wall (2) and a bottom wall (3), in which the said vertical wall has a plurality of vertical panels (8, 8?), the said bearing structure surrounding the said vertical wall, and in which the said bottom wall includes a plurality of rectangular components (5) arranged in sectors that are the image of one another but rotated, the edges of the rectangular components of one of the said sectors being respectively parallel and perpendicular to one of the said vertical panels (8), characterized in that the number of the said vertical panels is twice the number of the said sectors.

Abstract: Liquefied natural gas container comprising a loadbearing structure (11) and an impermeable and thermally insulated tank designed to contain liquefied natural gas, each tank wall having in succession, in the direction of the thickness, proceeding from the inside of said tank to the outside, a primary impermeable barrier, a primary thermally insulating barrier, a secondary impermeable barrier and a secondary thermally insulating barrier, the secondary impermeable barrier of a vertical wall comprising a first impermeable sheet at the top of said wall and a connecting device which impermeably connects said first impermeable sheet to said loadbearing structure, said container being characterized in that said connecting device comprises a first metal plate (22) parallel to said first impermeable sheet, and a second impermeable sheet (17) which is on the one hand bonded to said first impermeable sheet and on the other hand connected to said first metal plate.

Abstract: Sealed, thermally insulated terrestrial tank built into a bearing structure (1), comprising a thermally insulating barrier comprising a plurality of insulating blocks (14), each insulating block comprising a plywood panel and containing or carrying thermally insulating material, the said insulating blocks (14) being fastened directly against the bearing structure (1) by means of beads (3) of mastic positioned on the panels of the said insulating blocks along mutually parallel lines, characterized in that at least two of the said beads (3) on the panel of at least one of the said insulating blocks (14) are arranged along wavy parallel lines.

Abstract: A cylindrical structure includes a vertical wall (3) and a bottom wall (2), the bottom wall having a plurality of sectors (4) which are rotated images of each other, each sector including a plurality of adjacent rectangular elements (8), characterized by the fact that the bottom wall has the shape of a regular polygon whereof each side (6) corresponds to one of the sectors, the edges of the rectangular elements of one sector being respectively perpendicular and parallel to the side of the polygon corresponding to the sector.