Underground Parking in front of the Circului Park Tower in Bucharest. Both the parking and the Tower were designed by architect Amon Ben Dor. The Parking has a total area of 3.300m². It consists of two underground levels and its foundations are at a depth of 7.50m, approximately at the aquifer level.

It was built using the “Berlin” diaphragm retaining wall method. Reinforced concrete piles were built at 1m intervals, each 12m in length, cast in-situ, 40cm in diameter. All the piles were joined at the “piles’-head” height with a beam of 2.60m height and 50cm thickness. Ø600mm steel pipes supported laterally the beam as struts. The struts were removed after the construction of the second basement ceiling, reinforced concrete slab. Slabs and ramps are compact, 25cm thick and supported by peripheral and internal walls, as well as circular composite columns, which are made with in-situ injected concrete in a Ø400mm steel tube of 5mm thickness. The slabs rest on the above columns by means of a 2.4×2.4m concrete column-head, 50cm thick, against punching.

Vehicle traffic inside the building is very comfortable and all that needs attention is the correct coloring and lighting of the columns to avoid possible impact. The foundation plate is of variable thickness 25 ÷ 80cm.

Cubus carried out all the phases of statics and earthquake resistance design, as well as the design of the retaining structure during the excavation phase.