Sealed and thermally insulating tank

A sealed and thermally-insulating tank (71) for storing liquefied gas integrated into a supporting structure (1), the tank (71) including a bottom wall (6) and a ceiling wall (4) opposite the bottom wall (6) in a heightwise direction (H) of the tank (71), the bottom wall (6) and the ceiling wall (4) being fixed to the supporting structure (1),

• in which the ceiling wall (4) has passed through it at least one first pipe (10) and one second pipe (11),
• in which the tank (71) is equipped with a support foot (12) passing through the bottom wall (6) and fixed to the supporting structure (1) and a guide device (13) fixed to the support foot (12), the guide device (13) being configured to guide movement in translation in the heightwise direction (H) of the first pipe (10) and of the second pipe (11),
• wherein the guide device (13) includes a first collar (25) disposed all around the first pipe (10) and configured to guide movement in translation in the heightwise direction (H) of the first pipe (10) during thermal contraction or expansion of the first pipe (10), a second collar (26) disposed all around the second pipe (11) and configured to guide movement in translation of the second pipe (11) in the heightwise direction (H) during thermal contraction or expansion of the second pipe (12), a support plate (18) fixed to the support foot (12), a first connecting arm (21) connecting the first collar (25) to the support plate (18), and a second connecting arm (22) connecting the second collar (26) to the support plate (18).