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Components of forces of a reservoir acting on the foundation of high dams

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Hydrotechnical Construction Aims and scope

Conclusions

  1. 1.

    Regular waves of an increase-decrease of the seepage head in the stratum of the permeable rock foundation induced by a change in the upper pool level causes elastic compressive-tensile deformations of the blocks composing the rock mass, which is transmitted to the surface and is manifested in seasonal vertical translational movements of dams with a considerable amplitude.

  2. 2.

    The waves of increase-decrease of pressure being transmitted by the reservoir into deep horizons of the rock foundations propagate with a certain velocity which depends on the permeability and elastic properties of the mass, and therefore stabilization of the settlements of dams caused by these waves occurs with a certain, sometimes considerable, lag with respect to stabilization of the upper pool level.

  3. 3.

    The proposed model of deep penetration of a seepage flow into the stratum of rock foundations most completely takes into account the actually observed dynamics of the settlements of dams.

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Authors
  1. V. V. Tetel'min
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Additional information

Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 4, pp. 40–44, April, 1987.

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Tetel'min, V.V. Components of forces of a reservoir acting on the foundation of high dams. Hydrotechnical Construction 21, 224–230 (1987). https://doi.org/10.1007/BF01429617

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  • DOI: https://doi.org/10.1007/BF01429617

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