Scientific-technical problems in building of the Sayano-Shushenskoe hydroelectric station

Abstract

The Sayano-Shushenskoe hydroelectric station is a unique, in size and complexity of construction, hydropower structure on the Enisei River and is part of the Sayan hydropower complex, which also includes the counter-regulatlng Maine hydropower development. The hydrostation will become the power base of the developing Sayan territorial industrial complex.Construction of the Sayano-Shushenskoe hydrostation required the large-scale organization of research and development 4nsuring the creation of reliable, economical, and operationally convenient structures and equipment. The complexity of the problem necessitated a broad approach to the solution of scientific--technical problems arising during design and construction of the hydrostation and manufacturing its equipment. An important place in the organizational and technical solution of this problem is being played by a new mass form of socialist competition--an agreement on creative scientific--technical collaboration among Leningrad organizations participating in the creation of the Sayano-Shushenskoe hydrostation, which is aimed at the most rapid solution of scientific--technical problema and their introduction into production. The main purpose of the agreement is to shorten the construction time of the station with a high quality of work by accelerating the start-up of its units, reducing the consumption of materials and cost of construction, creating the latest equipment, and improving construction technology.This initiative of the Leningraders, supported by the station's builders, was approved and recommended for wide introduction by the Central Committee of the CPSU and highly praised by its General Secretary, Comrade L. I. Brezhnev. "The Agreement of the 28" became the progenitor of a new form of interbranch organization of the combined development and creation of large national-economic installations.The Sayano-Shushenskoe project includes a gravity-arch dam more than 240 m high with a crest length of 1066 m, containing about 8.5 million m s of concrete; flood works intended for a discharge of 13,500 m3/sec; hydroelectric station with a total installed capacity of 6400 MW with i0 units capable of developing up to 720 MW each at heads greater than the designed; 500-kW outdoor electrical equipment.The Sayan reservoir, with a volume of 31 billion m s, will extend 300 km upstream and will cover a series of rapids in the river. The vast power potentialities of the Sayano-Shushenskoe hydrostation due to the 15 billion-m s drawdowuprism predetermines its leading role in the integrated power system of Siberia as a daily and annual regulator of power withan ample reserve. Creation of the Sayan reservoir will make possible water transport of freight and passengers in the Tuva ASSK. In the future, after constructing a ship lift, through navigation on the upper Enisei from Krasnoyarsk to Kyzyl will be possible.The station, regulating flood discharges, will greatly reduce flood damages. In order to ensure operation of the Sayano-Shushenskoe hydrostation to cover the wint...