WATER TRANSFER TUNNEL FROM DOWNSTREAM OF AMIR KABIR DAM TO TEHRAN TREATMENT PLANT NO. 6

PERIOD:‎ 2009 - 2013

EMPLOYER:‎ Tehran Regional Water Company

TECHNICAL SPECIFICATIONS:‎ Tunnel slope 0.177%, finished diameter after lining 3.9 m, full section mechanized drilling system using double shield TBM with a minimum turning radius of 300 m, design discharge 16 m3/s, forced ventilation jet fan, gravity-pumped drainage system, rail-crane transportation and unloading

LOCATION:‎ Chalus road

STAGE:‎ Completion of tunnel structural operation, regulating weir and intake structure, tunnel is in the provisional delivery phase, and weir and intake structure are in the equipment installation phase.

MOSHANIR’S ROLE:‎ Employer’s Engineer for design and site supervision

SPECIAL ACHIEVEMENTS:‎ Selection of a specific pozzolan cement to neutralize alkaline reaction of segment concrete materials, selection of intake in downstream of regulating dam instead of impounding from regulating dam reservoir, management and complete and full time supervision on TBM overhaul operations