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Hydraulic model investigations of spillway structures for the Chirkey hydroelectric station

  • At the Construction Projects of the Five-Year Plan
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Hydrotechnical Construction Aims and scope

Conclusions

  1. 1.

    For hydrodevelopments located on mountain rivers with a narrow, tortuous channel deeply incised into the rock, the problem of providing a maximum range of ejection of the flow and simultaneously eliminating its considerable effect on the canyon slopes in the case of a dam spillway with a frontal ski-jump is quite complex. Variants with a spillway tunnel ending with a lateral overflow ski-jump are considerably more flexible.

  2. 2.

    The use of a lateral overflow ski-jump and uniformly distributes the discharges over a sufficiently long stretch of the channel and eliminates the fall of large quantities of water onto the canyon slopes through a wide range of discharges and heads. In this case the intensity of the effect of the discharge on the channel bed can be reduced substantially in comparison with the frontal ski-jump.

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Literature Cited

  1. M. F. Skladnev, N. S. Rozanov, and R. E. Litvinova, “Investigations by the All-Union Scientific-Research Institute of Hydraulic Engineering during the construction of Chirkey hydroelectric station,” Gidrotekh. Stroitel'. No. 1 (1975).

  2. L. M. Bosovskii, “The Chirkey hydroelectric stations on the Sulak River,” Gidrotekh. Stroitel'., No. 10 (1959).

  3. Kh. I. Zairov. Joining of Pools in the Case of a Spillway Equipped with a Group Energy-Dissipating Ski-Jump, Candidate's Dissertation, Leningrad (1967).

  4. M. É. Faktorovich, “A spillway with lateral overflow and cjection of the flow into the lower pool.” Izv. VNIIG,92 (1970).

  5. Recommendations on Hydraulic Calculation of Spillways. Part I. Straight Spillways. II 18-74 [in Russian], Énergiya, Leningrad (1974).

  6. Recommendations on Calculation of Cavitation when Designing Spillway Structures. II 38-75 [in Russian], Leningrad (1976).

  7. V. M. Semenkov and G. N. Tsedrov, “Experience in the operation of concrete spillways and outlets of high dams and requirements imposed on the quality of their surfaces,” Ékspress-Informatsiya Stroitel'stvo GÉS, Informénergo, Moscow (1969).

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  8. V. M. Semenkov, “Measures for preventing cavitation erosion on spillways of high dams,” in: Transactions of the Joint Conferences on Hydraulics. Hydraulics of High-Head Spillway Structures (Supplementary Data) [in Russian], (1975).

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Authors
  1. G. L. Rubinshtein
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  2. G. K. Deryugin
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  3. V. F. Tsilikin
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Additional information

Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 9, pp. 28–31, September, 1976.

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Rubinshtein, G.L., Deryugin, G.K. & Tsilikin, V.F. Hydraulic model investigations of spillway structures for the Chirkey hydroelectric station. Hydrotechnical Construction 10, 889–893 (1976). https://doi.org/10.1007/BF02379556

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  • DOI: https://doi.org/10.1007/BF02379556

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