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Calculation of conjugate depths of a hydraulic jump during movement of a mudflow

  • Science: Theory, Experiment, Practice
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Hydrotechnical Construction Aims and scope

Conclusions

  1. 1.

    The hydraulic characteristics of cohesive mudflows in the case of a hydraulic jump, other conditions being equal, differ considerably from those for a pure water flow.

  2. 2.

    The scheme of calculating a hydraulic jump of a cohesive mudflow requires taking into account, along with the hydrostatic pressure, also the pressure caused by cohesive forces and angle of internal friction of the mudflow mixture.

  3. 3.

    The change in the ratio of the depth H2/H1 before and after the jump completely depends on the kinetics parameter of the mudflow, values of cohesion and angle of internal friction.

  4. 4.

    Several subcritical depths, determined by the concentration of the mudflow mixture and physical and mechanical properties of the medium, correspond to the jump function of a cohesive mudflow.

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Literature cited

  1. G. M. Beruchashvili, “Method of determining maximum mudflow discharges at the time of their occurrence,” in: Problems of Mudflow-Control Measures [in Russian], Kazakhstan, Alma-Ata (1979).

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  5. M. A. Sergeev, G. A. Golodkovskaya, R S. Ziangirov, et al., Soil Science [in Russian], Moscow State Univ. (1983).

  6. L. A. Sulakvelidze, “Formation of structural mudflows,” Tr. GruzNIIGiM, No. 20 (1988).

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  8. V. I. Tevzadze, “Establishment of the ultimate shear stress of a model of a structural mudflow mass,” Tr. GruzNIIGiM, No. 29 (1972).

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Authors
  1. V. I. Tevzadze
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  2. É. G. Kukhalashvili
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Additional information

Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 12, pp. 45–47, December, 1991.

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Tevzadze, V.I., Kukhalashvili, É.G. Calculation of conjugate depths of a hydraulic jump during movement of a mudflow. Hydrotechnical Construction 25, 770–774 (1991). https://doi.org/10.1007/BF01545110

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  • DOI: https://doi.org/10.1007/BF01545110

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