Azad water conveyance tunnel
Project Info
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Client:
Iran Water & Power Resources Development Co.
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Main Contractor:
Farab- Nimrokh JV
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Location:
Kurdistan, Iran
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Scheme:
EPC
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Scope:
Water tunnel by TBM (Tunnel Boring Machine)
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Progress:
Under construction
- Specification:
- Type of tunnel: Mechanized concrete tunnel for water transfer
- Capacity: 5 m3/sec. passing flow
- Main volume:
- Precast concrete segment: 54,200 pieces in 9,034 rings, each ring consist of 6 segments
- Concrete volume: 35,000 m3 including lining and grouting
- Reinforcement: 1,800 tons
- Open excavation volume: 550,000 m3
- Tunnel excavation volume: 120,000 m3 in hard and karstic rock, clay and sand
- Length: 10,840 m
- Diameter: Excavation diameter is 3.74 m and finishing diameter after segment fitting will be 3 m
- Depth of tunnel (over burden): 150 m
- Type of TBM: an EPB (Earth Pressure Balance)