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Practical method for calculating creep of foundations of hydraulic structures

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Hydrotechnical Construction Aims and scope

Conclusions

  1. 1.

    Equations (5)–(8) can be recommended for calculating creep settlements and displacements of clays with consistency B<0.5. In this case it is necessary to take into account the increase in the viscosity coefficient with increase of depth and with time. At the observed stations creep diminishes quite rapidly, which is indicated by the small values of the coefficients K(S) (Table 2).

  2. 2.

    The thicknesses of the compressible (H) and displaceable (Hdi) layers for calculating creep can be taken (for a consistency of clays equal to 0–0.5): H=B; Hdi=0.4Bs (Bs is the width of the structure).

  3. 3.

    A comparison of the calculations for the Volga-Lenin and Kaunas stations shows that tangential stresses in the foundation greater than the creep threshold can be allowed. This will permit a more economical design of retaining structures.

  4. 4.

    The described method permits predicting also the deformation of the slopes of a pumped-storage plant.

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Literature cited

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  4. V. S. Vyalov, “Kinetic theory of soil deformation,” in: Trans. of the Symposium on Soil Rheology [in Russian], Erevan (1976).

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Authors
  1. I. K. Samarin
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Additional information

Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 4, pp. 24–27, April, 1978.

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Samarin, I.K. Practical method for calculating creep of foundations of hydraulic structures. Hydrotechnical Construction 12, 363–368 (1978). https://doi.org/10.1007/BF02304343

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