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State of the dam at the Zeya hydroelectric station with consideration of the geodynamic effect

  • Safety of Hydraulic Structures
  • Published:
Hydrotechnical Construction Aims and scope

Conclusions

  1. 1.

    The Zeya dam is in a satisfactory state, but is operating under conditions different from the design assumptions, under the effect of geodynamic forces — natural and induced seismicity with mainly a transverse direction of the earthquake and, probably, creep pressure from the right bank.

  2. 2.

    The design model of a plane stress state adopted in the design does not correspond to the real conditions of the static behavior of the structure which is in a volume stress state. The presence of dynamic loads requires determination of the dynamic characteristics of the structure and corresponding check calculations.

  3. 3.

    The geodynamic effect on the SSS of the dam requires improvement of the system of on-site observations and the organization of a geodynamic test area at the Zeya hydrostation in accordance with the decisions of the Ministry of Fuel and Energy of the Russian Federation. Before the creation of this test area the geodynamic effects should be monitored by the available measuring instruments according to the method of OIFZ and VNIIG.

  4. 4.

    The existing structural members of the deck of the cavities between buttresses require improvement with consideration of their new, antiseismic function, their incorporation into the calculation scheme, and equipping with measuring instruments.

  5. 5.

    The state of the dam and conditions of its operation require the creation of a mathematical model of the structure with consideration of the results of on-site observations and creation of a data bank for predictive purposes.

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References

  1. V. I. Sil'nitskii, L. N. Dudchenko, et al., “State of the foundation and dam of the Zeya hydroelectric station,” Gidrotekh. Stroit., No. 5 (1993).

  2. V. P. Solonenko et al., “Seismicity of the region of the Zeya hydroelectric station,” Geol. Geofizika, No. 7 (1977).

  3. F. G. Korchagin et al., “Geodynamics of the region of the Zeya reservoir,” Tikhookeanskaya Geologiya, No. 6 (1985).

  4. F. G. Korchagin et al., “Effect of the Zeya reservoir on geodynamics of the region,” Tikhookeanskaya Geologiya, No. 5 (1983).

  5. F. G. Korchagin, “Investigation of short-period horizontal block movements in the region of the Zeya reservoir,” in: Earthquake Prediction [in Russian], Donish, Dushanbe-Moscow, No. 11 (1989).

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  6. F. V. Shpakovskii, “The Zeya dam on the Zeya River,” in: Geology and Dams [in Russian], Vol. 8, Énergiya, Moscow (1980).

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Authors
  1. A. N. Marchuk
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  2. L. N. Dudchenko
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  3. V. V. Bolgov
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  4. Yu. V. Solov'ev
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  5. N. M. Ivashkina
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  6. A. V. Vyatkin
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Additional information

Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 5, pp. 8–15, May, 1995.

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Marchuk, A.N., Dudchenko, L.N., Bolgov, V.V. et al. State of the dam at the Zeya hydroelectric station with consideration of the geodynamic effect. Hydrotechnical Construction 29, 273–282 (1995). https://doi.org/10.1007/BF01577467

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  • DOI: https://doi.org/10.1007/BF01577467

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