A 19m deep excavation for a landmark high-rise building known as Downtown One was recently completed in Tirana Albania. The building will feature 5 floors of underground parking.
The deep excavation support system consisted of a reinforced concrete diaphragm supported by three to five levels pretensioned ground anchors. The excavation support system had to protect a neighboring four story concrete building, and a two story adjacent parking. Thus, soil and wall deformation control was very important to the project success.