80000 cubic meter GPL tank

Civil works for the installation of a double-wall steel 80,000-cubic-meter tank for stocking liquefied propane.

The tank is made up of a cylindrical inner wall of diameter 65 metres and height 27.6 metres and a cylindrical outer wall of diameter 67 metres and height 29.2 metres, with a spherical cap cover approximately 10 metres high on top of the cylinder.

The foundations is made of over 480 reinforced concrete piles, cast-in-situ into steel tubes driven into soil, without removing any ground: the piles, 560 mm diam., were driven at depths between 8 and 15 metres, depending on substratum depth.

The piles support the platform supporting the tank, of diameter 72.2 metres and about 1 metre thick, made of r.c. about one metre above the ground. On this slab is also supported a cylindrical outer wall protecting the steel tank, also made of r.c., of outer diameter 71.6 metres, 26.9 metres high and 30 cm thick, realized using a sliding formwork.

The tank was completed with the related stair towers and a building hosting the service compressors.

Services provided: Preliminary design, execution design supervision and technical assistance during the civil works.

Client: PARESA S.p.A.

Years: 2017-2019.