JSC VNIIG Im. B. E. Vedeneeva

Saint Petersburg, Russia

JSC VNIIG Im. B. E. Vedeneeva

Saint Petersburg, Russia
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Veksler A.B.,JSC VNIIG im. B. E. Vedeneeva | Fisenko V.F.,Votkinsk HPP
Power Technology and Engineering | Year: 2017

Changes during operation in the state of the segment where concrete reinforcement of the water channels of the Votkinsk hydroelectric plant join the Kama River are examined. The reasons for erosion during the 1990’s, including lowering of the water levels in the lower millrace, are examined. It is noted that after reinforcement of the hopper during 1998 – 2000, the state of this segment remains satisfactory and does not threaten the safety of the equipment. © 2017 Springer Science+Business Media New York


Levina S.M.,JSC VNIIG Im. B. E. Vedeneeva | Vasil'Chenko K.I.,JSC VNIIG Im. B. E. Vedeneeva
Power Technology and Engineering | Year: 2014

Technical and organizational requirements for remaining-life assessment of metallic structures of the water-delivery run of hydraulic turbines at HPP are examined. The remaining service life of a structural component should be evaluated with consideration of its actual technical condition. © 2014 Springer Science + Business Media New York.


Andrianova E.A.,JSC VNIIG im. B. E. Vedeneeva | Kaufman B.D.,JSC VNIIG im. B. E. Vedeneeva
Power Technology and Engineering | Year: 2014

The problem of computational assessment of the vibrations of a generating set at an HPP due to water pulsation in the toe basin with consideration of incomplete (doubtful) information on the properties of the bed material is examined. Asolution is derived on the basis of the Lamb problem of the propagation of elastic waves in a half plane due to the dynamic effect applied to a portion of its boundary. Point (probabilistic) and interval (with use of possibility theory) estimates are obtained for the level of vibration and compared with results of measurements on, for example, a generating set at the Sayano-Shushenskaya HPP. © 2014, Springer Science+Business Media New York.


Durcheva V.N.,JSC VNIIG im. B. E. Vedeneeva | Izmailova R.A.,JSC VNIIG im. B. E. Vedeneeva | Legina E.E.,JSC VNIIG im. B. E. Vedeneeva
Power Technology and Engineering | Year: 2015

Results are presented for multiyear field investigations of the effect of microbe colonies on components of water-development works. Concrete, metal, and geologic rocks were studied as component parts of the bed of concrete dams functioning in various climatic zones. The participation of lithotrophic bacteria in processes involving corrosion failure of the metal, concrete, and rock beds of dams is established, and causes of intensification of microbe activity are exposed. The need for monitoring the composition and number of microorganisms-biodestructors is substantiated in the water of a reservoir and observation wells, as well as on the surfaces of structural components of water-development works for monitoring of the safety of the concrete dams. © 2015 Springer Science+Business Media New York


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.


Panov S.I.,JSC VNIIG im. B. E. Vedeneeva | Krivonogova N.F.,JSC VNIIG im. B. E. Vedeneeva
Power Technology and Engineering | Year: 2012

Information relative to participation of the B. E. Vedeneev All-Russian Scientific-Research Institute of Hydraulic Engineering (VNIIG im. B. E. Vedeneeva) in the solution of problems of scientific verification of the design, construction, and operation of water-development works in regions of the Extreme North are presented. Basic characteristics of changes in the technical condition of high rock-and-earthfill dams, and the conditions under which their safety is ensured for long-term service in these regions are examined. © 2012 Springer Science+Business Media, Inc.


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.


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.


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.


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

This paper is devoted to a critical problem - analysis of the operation of deep construction spillways (DCS) with a gravity-flow discharge run. As results of operation of this type of structure both abroad and in our country (Krasnoyarsk and Zeya hydroprojects) indicate, cavitation failures have occurred in a number of these structures. In this paper, it is noted that the publication of inspection data has not always been sufficiently analyzed in depth, and does not consider results of experimental investigations; this has led to superfluously categorical conclusions concerning structural deficiencies of DCS. Experience acquired with the design and operation of tubular spillways within the body of concrete dams is examined above all in this paper. Causes of damages sustained by DCS at the Krasnoyarsk hydroproject are revealed, and it is emphasized that water had been passed entirely successfully after repair work. Abrief description of the DCS at the Bureya hydroproject is given. It is noted that the difficult financial and climatic conditions of its construction have influenced the quality of the concrete surfaces of the spillway, and the rate of the dam's installation. Results of laboratory investigations of the DSC at the Bureya hydroproject and monitoring of the hydraulic operating conditions of their run are examined. Conclusions concerning causes of abrasive and cavitation damages sustained during passage of high-water in 2004 - 2006 are drawn on the basis of analysis of these data. © 2012 Springer Science+Business Media, Inc.

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