Conclusions
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1.
Calculations of the specific energy expenditures for hydraulic transport of soil by the methods of determining the head losses confirm that it is expedient to transport a highly concentrated soil-water mixture. The saving of specific energy expenditures in that case is from 20 to 40% of the existing standards. The greatest saving can be attained in the case of transporting a sand-gravel mix, the concentration of which usually does not exceed 5%.
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2.
It is economically expedient to deliver a highly concentrated mixture with a smaller flow rate and increased hydraulic gradient of transport than to deliver a mixture with a low concentration at a large flow rate.
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3.
Designs and equipment have presently been developed for hydraulic transport of thick mixtures.
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Literature cited
E. P. Zharnitskii, Suction Dredges with Submersible Pumps [in Russian], Nedra, Moscow (1988).
N. N. Kozhevnikov and M. S. Triandafilov, “Concerning an increase of delivery of dredges and parameters of hydraulic transport,” Gidrotekh. Stroit., No. 11 (1990).
B. M. Shkundin, Hydraulicking Equipment [in Russian], Énergiya, Moscow (1970).
Instructions for Hydraulic Calculation of Pressure Hydraulic Transport Systems: II 59-72 [in Russian], Énergiya, Leningrad (1972).
Additional information
Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 1, pp. 30–33, January, 1993.
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Kozhevnikov, N.N. Specific energy expenditures for hydraulic transport of highly concentrated soil-water mixture. Hydrotechnical Construction 27, 25–30 (1993). https://doi.org/10.1007/BF01545554
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DOI: https://doi.org/10.1007/BF01545554