Group of Viljui Hydro Poer Plants (I, II, III)
Hydraulic engineering works
Underground structures of various application, Chief Project Engineer - V. Parkhomenko.
Projection of the tunnel structures, underground HPP structures construction organization and technology:
- Excavation and concreting of hydrotechnical tunnels in permafrost soils.
- The thermal regime of tunnel air during ventilation of underground workings.
- Using the method of "cold concrete" while lining with antifreeze additives and accelerating supplements.
- Ensuring the stability of thawing rock massive around underground workings.
- Technical maintenance of underground construction.