Conclusions
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1.
To evaluate the soil density when constructing hydraulic-fill dams it is recommended to use radiation instruments: gamma-gamma density meter and neutron hygrometer, which have the necessary measurement accuracy and permit obtaining results directly during construction.
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2.
The use of radiation instruments is most expedient in underwater hydraulic filling, since under these conditions only they provide direct measurements of the density and afford the opportunity of checking changes of the density indices with the course of time.
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Literature Cited
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V. A. Emel'yanov, Gamma Rays and Neutrons in Field and Soil-Reclamation Investigations [in Russian], Gosatomizdat, Moscow (1962).
P. S. Bespalyi, “Rod-type gamma-gamma density meter and neutron hygrometer for determining soil density and water content during hydraulic filling of structures,” in: Transaction of the Joint Conference on Hydraulic Engineering [in Russian], Energiya, Moscow, No. 29 (1966).
P. S. Bespalyi, “Field neutron hygrometers and gamma-gamma density meters,” Byulleten' Tekhniko-Ekonomicheskoi Informatsii, No. 1 (1965).
P. S. Bespalyi, “Radiometric control and prediction of the quality of hydraulic-fill structures,” in: Nuclear Radiations and Radioactive Indicators in Reclamation [in Russian], Trudy VNIIGiM, Moscow, 48 (1970).
V. A. Emel'yanov, Instructions on Methods of Measuring Soil Water Content and Density by Radiometric Density Meters and Hygrometers in Soil, Engineering Reclamation, and Engineering Geologic Investigations [in Russian], Nos. I and II, Minvodkhoz SSSR, Moscow (1966 and 1967).
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Additional information
Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 2, pp. 25–28, February, 1973.
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Bespalyi, P.S., Rozinoer, S.T. Determination of the unit weight of the soil skeleton under water. Hydrotechnical Construction 7, 133–138 (1973). https://doi.org/10.1007/BF02377090
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DOI: https://doi.org/10.1007/BF02377090