B462, rescue staircase extension tunnel Gernsbach

- 4 x structural engineering, object planning,

- 4 x site equipment,

- Excavation excavation 1 900 m 3 .

- Chute breakage VKL S1 = 720 m 3 .

- Chute breakage VKL S2 = 1 000 m 3 .

- Tunnel break VKL 3 = 360 m 3 .

- Tunnel break VKL 4 = 875 m 3 .

- Tunnel break VKL 6 = 600 m 3 .

- Sheet piling = 850 m 2 .

- Bohrträgerverbau = 130 m 2 .

- Securing shotcrete up to d = 30 cm = 2 500 m 2 .

- securing by anchor = 1 000 pcs,

- Reinforced concrete = 1 500 m 3 .

- reinforcing steel = 216 t,

- sealing = 2 100 m 2 .

- hipped roof ALU = 250 m 2 .

- Disposal = Z2 material (arsenic loaded) = 5 200 t,

- 4 x drainage incl. Settling tank, neutralization plant.