Spandaryan HPP. Repair-rehabilitation works of the power tunnel.
Having in view the elimination of breakdown occurred somewhat around the concrete block of the access opening, the following works have been implemented in the shortest possible time:
1. The earthwork – 14000 m3.
2. Concreteing and R.C. works - 3163.1 m3.
3. Fitting of 1220 mm pipes – 80 m.
4. Installation of reinforcement and steel structures – 63.5 Ton.
5. Primary and control injection of grout behind the lining – 13074 m2.
6. Placing of crushed stone-sand mattress – 1938 m3.
7. Boring of wells – 999 m.
8. Sand blasting of the concrete surface – 990 m2.
The cost of works was 349286.3 thousand Dram or 793833 $US.
The Customer: The Ministry of Power Engineering of RA.
Address: Vorotan Cascade of HPP, Goris Town. RA

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