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Hydrotechnical installations
• pressure and free flow water tunnels and shafts with different linings and
supports
• water towers
• pumping stations
• grouting, filling and other types of specialized works, aiming rock mass improvement
• maintenance, repair and recovery works
Hydro power project
Tsankov kamak
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Sites
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Chaira hydroelectric power station - I and II water towers;
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Chaira hydroelectric plant - II pressure pipeline - grouting and filling rock-mass,
together with laying and welding of pipes with diameter of 4400 mm, excavation
and lining main electric generators chambers;
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Batak dam - repair of the main pressure derivation;
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Dyakovo dam - siphon 2 with diameter of 1420 mm and length of 8 km;
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Plovdivtsi and Madan hydroelectric junctions - derivation tunnels for pure and
waste water;
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Tunnels of irrigation system "Montana" withcross section of 36 sq.m and length
of 5200 m;
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Underground water drainage system of open cast mine Kremikovtsi;
Hydro power project „Tsankov kamak”
At the present moment MINSTROY participates in the construction of hydro power
project "Tsankov kamak". The project is of national importance financed by consortium of Austrian banks. It
is the first pilot project under the joint implementation scheme to the Kyoto
Protocol based on a Memorandum of Understanding between the Republic of Bulgaria
and the Republic of Austria. The project aims the development in the middle section
of the Vacha Cascade and adequate utilization of the available hydro power potential
along the river valley Vacha. The water-power system "Tsankov kamak" is situated
in river Vacha, which is one of the big rivers in Bulgaria. At the present moment
there are six hydroelectric power stations on the river Vacha with total installed
power of 446 mWt and annual electric production of 543 GWh. The water-power sustem is
being built in the middle section of the river. The project comprises of:
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Tsankov kamak dam with total volume of 111 000 000 m³. The dam is an arch concrete
dam with double curvature. In the left and the right bank the dam ends with gravity
blocks and its arch part is completely symmetrical. The maximum dam height is
130.5 m, dam crest elevation is 688.5 m and the highest blocks are founded on
elevation 558 m. Dam length along the crest is 468 m, and the chord is 345 m.
The volume of the concrete to be inserted isto the dam is 465 000 m3.
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Hydropower station Tsankov kamak with capacyty of 80 MWt and average annual
power production of 185 GWh
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