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Refinement of the engineering-geological conditions of the foundation of the Khudoni arch dam

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Hydrotechnical Construction Aims and scope

Conclusions

Additional detailed investigations of the foundation of the Khudoni arch dam performed at the detail design stage made it possible to refine the engineering-geological structure of the rock mass in the foundation of the structure, to evaluate its stress state, and to determine the variability of the physical and mechanical properties of the rock under the effect of natural and technogenic factors. These investigations showed that the structure of the investigated mass is characterized by a greater complexity than was assumed at the contract design stage, and the relatively high characteristics of the physical and mechanical properties of the rock in the interior parts of the mass in many respects are due to the effect of natural (tectonic and gravitational) stresses. With considerations of the results presented, it is necessary to maximally preserve the natural state of the interior parts of the mass when correcting the working drawings and selecting the technology of construction works.

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Literature cited

  1. A. K. Mastitskii, T. L. Tetradze, and S. B. Kereselidze, “Engineering-geological conditions of the site of the Khudoni hydroelectric station,” Énerg. Stroit., No. 6 (1987).

  2. V. K. Razumov and A. K. Mastitskii, “Effect of geological-structural conditions on parameters of cutoff measures,” Tr. Gidroproekta, No. 122 (1987).

  3. A. I. Savich and B. D. Kuyundzhicha (eds.), Recommendations on the Use of Engineering Geophysics for Studying Deformation Properties of Rock Masses [in Russian], Moscow-Belgrad (1985).

  4. V. D. Parfenov, “Some new directions in the study of the paleostress state in rocks by geological methods,” Tr. Gidroproekta (1982).

  5. F. Rummel, G. Mohring-Erdman, and J. Baumgartner, “Stress constraints and hydrofracturing stress data on the continental crust,” Pageoph.,124, Nos. 4/5 (1986).

  6. J. B. Mgalobelov, A. I. Savich, and A. D. Chitanava, “Design of the Inguri and Khudoni arch dam rock foundation on the Inguri River,” Proc. of the Int. Symp. on Rock Mech. of Power Plants, Madrid, September 12–16, 1988.

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Authors
  1. A. I. Savich
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  2. V. K. Razumov
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  3. G. R. Khositashvili
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  4. A. M. Pershutkina
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  5. T. L. Tetradze
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Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 2, pp. 44–49, February, 1990.

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Savich, A.I., Razumov, V.K., Khositashvili, G.R. et al. Refinement of the engineering-geological conditions of the foundation of the Khudoni arch dam. Hydrotechnical Construction 24, 122–130 (1990). https://doi.org/10.1007/BF01424332

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  • DOI: https://doi.org/10.1007/BF01424332

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