Lift shaft strengthening and hydraulic lift installation, which comprises if two main elements: 16m high lift shaft strengthening with prefabricated steel elements, reinforced concrete plain roof arrangement on the lift shaft, lift rails and lift installation.
Drainage system and Reinforced Concrete Slab Arrangement: demolish existing 500sq.m. R/C slab in the BTC OPS yard, 20 cm thickness crushed rock layer arrangement and compaction, 20 cm thickness in city cast R/C slab arrangement, waterproof sealant application between the R/C slab sections.