Tunnel 01A 02A

Client: Orascom Construction Co. Scope: Structural Design Review Location: Cairo, Egypt

Tunnel 01-A is a tunnel crossing Mohamed Ben Zayed North Road, the new administrative capital, with a length of 230 m. The tunnel consists of 4 spans; mid spans are 17 m long, and outer spans are 9.5 m. The structural system is flat slab with thickness 1.10 m with 1.60 m drop panel for inner spans and 0.5 m with 1.35 m for outer spans. slabs rested on columns (1 m x 1 m) every 5 m; the columns rested on 1.2 m pile caps. In addition, the pile cap were supported with 1m piles every 2.5 m. Tunnel 02-A is a tunnel crossing Mohamed Ben Zayed North Road, the new administrative capital, with a length of 230 m. The tunnel consists of 4 spans; mid spans are 22 m and 25 m long, and outer spans are 9.5 m. The structural system is flat slab with thickness 1.30 m with 2.0 m drop panel for inner spans and 0.5 m with 1.55 m for outer spans. slabs rested on columns (1 m x 1.5 m) every 5m, the columns rested on 1.2 m and 1.5 m pile caps. In addition, the pile cap were supported with 1 m piles every 2.5 m.