KHUDONI HPP
BASIC DATA FOR HPP CONSTRUCTION PROJECT (PROVISIONS FOR TECHNICAL ASSISTANCE SERVICES)
KHUDONI HPP |
On the ENGURI RIV. |
(Preserved Construction)
| CUSTOMER: | Sakmtavarenergo |
| GEN. DESIGNER: | Hydroproject (Tbilisi) |
| GEN. CONTRACTOR: | Sakhydroenergomsheni |
| TECHNICAL ASSISTANCE / SERVICES of GEN. CONTRACTOR: |
Orgenergomsheni |
| PARAMETERS: | |
| Capacity, MW | 640 |
| Power output, GWh | 1455 |
| Reservoir storage, mln m3 | 89/230 |
| Rated water discharge, m3/s | 490 |
| Discharge through waterways, m3/s | 1924 |
| Rated head, m | 124 |
| TYPE OF REGULATION: | Seasonal |
| SCOPE OF WORKS: | |
| Excavation, ths m3 | 3699 |
| Earth and rock filling, outlining, drainages and filters, ths m3 | 200 |
| Contact grouting including joint grouting, ths m2 | 200 |
| Consolidation grouting, ths m3 | 350 |
| Concrete and reinforced concrete, ths m3 | 2386 |
| Installation of structural metal elements and mechanisms, ths t | 8 |
| Remark: Construction was closed down in 1989; executed works amount to approximately 25% of the total project cost. | |
Diagram of the Khudoni Hydraulic Scheme Structures:
1. arch dam;
2. low level water outlets;
3. overflow spillway;
4. stilling basin;
5. river diversion tunnel;
6. water intake;
7. emergency repair gates chamber;
8. penstocks;
9. powerhouse;
10.powerhouse access tunnel;
11.tailrace tunnels;
12. busbar tunnel;
13. 500kV insulated switchgear;
14. motor road tunnel
UNDERGROUND POWER HOUSE OF KHUDONI HPP
| PARAMETERS: | |
| Width, m | 24 |
| Length, m | 95 |
| Height, m | 60 |
| Depth of occurrence, m | 85 |
| GEOLOGICAL CONDITIONS: | |
| Tuff sandstones, porphyrites, lava braccia and tuff braccia | |
| SCOPE OF WORKS: | |
| Rock excavation, ths m3 | 270 |
| Concrete and reinforced concrete lining, ths m3 | 21 |
| Remark: The whole Powerhouse Complex – 3 line supply tunnel 293 m long and 6 m diameter, gate chamber dimensions 13x110x29m, 3 line inclined penstocks 160 m long and 5 m diameter, underground powerhouse and 3 line trailrace tunnel 90 m long and 8 m diameter are considered in the scope of work. | |
Section through the KHUDONI HPP Powerhouse Complex
1. water intake;
2. trash rack;
3. bulkhead gate;
4. emergency-repair gate chamber;
5. penstock;
6. powerhouse;
7. surge chamber;
8. tailrace pressure tunnel.
Khudoni HPP – Technical assistance component services of construction
| № | Buildings | Designation of construction and mounting works | S e r v i c e s | Work execution period, years | ||||
|---|---|---|---|---|---|---|---|---|
| Works organization projects | Works execution projects | Areas construction bases and temporary communications projects | Supervision for implementation of given projects | Consulting of technical and industrial issues | ||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| 1 | Three line pressure tunnels d=6m, l=293m | Working (mining) of the rock and lining | + | + | + | + | + | 1984÷1989 |
| 2 | Gates chamber – 13x110x29 m | Working (mining) of the rock and lining | + | + | + | + | + | |
| 3 | Three line inclined penstocks d=5m, l=160m | Working (mining) of the rock and lining | + | + | + | + | + | |
| 4 | Powerhouse 24x95x60m | Working (mining) of the rock and lining | + | + | + | + | + | |
| 5 | Three line tailrace tunnels d=8m, l=90m | Working (mining) of the rock and lining | + | + | + | + | + | |
