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Saint Petersburg, Russia

Sudakov V.B.,JSC VNIIG Im. B. E. Vedeneeva
Power Technology and Engineering | Year: 2011

Stepped spillways are a modern and promising technical solution from positions of longevity and adaptability to installation. © 2011 Springer Science+Business Media, Inc. Source


Girgidov A.A.,JSC VNIIG Im. B. E. Vedeneeva | Girgidov A.D.,Saint Petersburg State Polytechnic University | Fedorov M.P.,Saint Petersburg State Polytechnic University
Power Technology and Engineering | Year: 2012

It is noted that the load that develops under high near-bottom velocities should be consider when analyzing the loads on a toe-basin slab in the case of high-head hydroprojects. They may not only create significant forces against the surface of the slabs, but also give rise to the appearance of suspending forces, which act on blocks of the toe-basin slab of the apron. To reduce near-bottom velocities, it is recommended that a group of dispersing springboards with a double-curved surface be incorporated in the terminal section of the spillway. Numerical modeling of the operating regime of the basin indicates that a submerged hydraulic jump is formed here in the basin, while near-bottom velocities are reduced by more than a factor of two, and, consequently, a more than fourfold reduction occurs in the load. © 2012 Springer Science + Business Media, Inc. Source


Shvainshtein A.M.,JSC VNIIG Im. B. E. Vedeneeva
Power Technology and Engineering | Year: 2012

Results are presented for hydraulic laboratory investigations conducted by the VNIIG im. B. E. Vedeneeva to substantiate conditions for the passage of flows during construction and operation of the Bratsk hydroproject. Various alternate schemes for closure of the Angara River channel, conditions for the passage of water and ice through the narrow river channel, over the crest of the dam, through bottom and deep tubular construction discharges, and over a surface spillway are examined on there-dimensional models. Designs of the bottom and deep tubular construction discharges, and the operational spillway, as well as optimization of hydraulic losses in the water intake to the HPP and penstocks were worked out on fragmented models. © 2012 Springer Science+Business Media, Inc. Source


Durcheva V.N.,JSC VNIIG Im. B. E. Vedeneeva
Power Technology and Engineering | Year: 2012

During construction, a comprehensive program was carried out to determine the temperature-induced crack resistance of the concrete, and evaluate the effectiveness of the extent to which the profile dam had been monolithized, and changes were introduced to the procedure employed for work production. © 2012 Springer Science+Business Media, Inc. Source


Vasil'ev A.V.,Bureya HPP | Kokurin S.A.,JSC Lengidroproekt | Deryugin G.K.,JSC VNIIG Im. B. E. Vedeneeva
Power Technology and Engineering | Year: 2012

During passage of the 2009 spring flood through the Bureya hydroproject at a flow rate of 5200 m3/sec, tests were conducted on its service spillway, which indicated reliable performance of all bays of this structure over the long term. The springboards-panels were functioning in conformity with design conditions, and separation of the flow from the downstream face of the dam and its aeration were being provided for. Characteristics of the formation of scour pits and bar was noted, and constraints on regulation of the operation of a number of bays were established. © 2012 Springer Science + Business Media, Inc. Source

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