Doha Metro Red Line
- Manhoufa, Arabia Saudita
- Environment, Tunnels
- Completed: 2017
Highlights
- The length of north tunnel is 6856 m;
- the length of south tunnel is 4989 m.
Description
Design and construction of 11.9 km of wastewater conveyor tunnels (north and south tunnels) from Manhoufa Sewage Treatment Plant to Al Hair Sewage Treatment Plant using the TBM method.
Both tunnels are excavated with a double-shield TBM machine.
During excavation, concrete segmental lining was installed, the internal walls are coated with protective PVC or HDPE membrane.
Companies involved
Our group
General contracting
Specialized contracting
Other activities
