SHUROB HPP
The necessity of Shurob HPP Costuction has been made clear while was working out the Rogun HPP in 1973-1974. It had to play the
role of “contrregulation” as requirement to optimization of work all of Vakhsh HPP Cascade and in particular Roghun HPP.
The Site of Shurob HPP is defined lower of 12,5 km from the Rogun HPP Damsite . The difference of NHL (Normal Headwater Level)
between NHL of Nurek HPP(costructed in 1980) reservoir and NHL of Shurob HPP is 66 meters.
Shurob HPP will be operation jointly with Rogun HPP implementing restricted daily regulation.
GENERAL PARAMETERS OF SHUROBSKAYA HPP
Normal Headwater Level, m
Installed Capacity, MW:
Average annual power out put GW.hour:
Earth Dam
Concrete Dam
Earth Dam
Concrete Dam
Reservoir Storage Capacity million m3: full
usable
977,0
850
900
3100
3200
27,0
5,0
COMPOSITION OF MAIN STRUCTURES, HYDRO POWER PLANT AND TYPE OF DAM
The type of dam construction is traditional and accepted as - the rock fill-earth dam with the central core consists of clayly loam
The mound volume
- 2600 thousand m3
Heigh of Dam
- 83,0 m
Length of Dam Crest
- 235,0 m
Level of Dam Crest (6 meters upper than NHL) - 983,0 m
The high of up stream constructing cofferdam is 40 meters and a part of Dam construction. The cofferdam is rock fill-earth type
including screen made from clayly and rock crush loam materials.
The two lines of outlet structures have to be located on the right bank of the Vakhsh River. The outlet tunnels are trough-section - 11x
11meters, concrete reinforced lining thickness up to 1 meter, length 960 and 1040 meters
Power House and Water Conveying Structures are located on left bank of the Vakhsh River presented as follow:
- Tower type HPP Water Intake
- Headrace Tunnels
- Open-type House of Hydro Power Plant
- Tailrace Channel
The Power House of Hydro Power Plant accommodating 4-hydro units
- Hydro turbine РО-75/728М-В-670 – vertical shaft Francis- type;
- Hydro transformer type of СВ 1430/225-64 Capacity 212, 5/250 Watt/m.
The size of Power House (on plane) 61,3х123,3 m.
The Delivery Pressure Tunnels 9,0 m in diameters and length 600,0 meters.
Shurob HPP Generated electricity is conveyed to the consumers at a voltage of 220 and 500 kVolt by means of interconnection to
High Voltage Line – 500 kVolt Rogun HPP – Dushanbe TS.
The Concrete Dam designed as- gravity type is cut on 30 meters width section. The HHP Water Intakes and four Head Water Conduits
8,8 m in diameter with steel lining are mounted in body of the Dam.
THE MAIN CONSTRUCTION WORKS
The main construction works are given according to composition recommended with Eart and Concrete Dam, shown in following table:
№№
пп
1.
Description of Construction Works
Open-cut earth excavation - Total
Unit of
Measure
Thou.m3
Earth
Dam
2369
Concrete
Dam
1321
1.1.
1.2.
2.
3.
4.
Non-rock excavation
Rock excavation
Underground rock excavation - Total
Emban
Concrete and Reinforced Concrete
-*-*Thou.m3
-*-*-
1038
1331
678
2958
510
741
580
243
488
1052
THE CONSTRUCTION COST OF HPP
INDEXES OF WATER POWER DEVELOPMENT CONSTRUCTION COST ESTIMATED BOTH
IN $ U.S.:
№№
пп
1.
2.
Descriptions
Production purposed objects
Reservoir
TOTAL:
Unit
Thous.
$U.S.
-*-*-
Earth
Dam
Concrete
Dam
823000
164000
987000
748000
164000
912000