Conclusions
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1.
An experimental dam, 7.5 m high, made of graded rock, was sluiced-in with sand in a hydromechanical installation developed at the B. E. Vedeneev VNIIG. This proved the method to be feasible.
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2.
The employed method of sluicing-in rock fills with sand in layers from the base to the crest can be recommended for use under production conditions.
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3.
Seepage investigations of the dam with a head up to 6.7 m showed its high imperviousness and seepage stability for an average seepage gradient of 0.415.
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4.
The rock-sand medium resulting from a complete sluicing-in of the fill with sand and with a density of the sand filler not lower than 1.6 g cm3 is not subject to piping and can serve to form a body of a dam.
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5.
Results obtained in the course of the investigations described in the article permit to consider rock-sand dams capable of competing with rock-fill dams of the classical type (with a core and cutoff wall) of equivalent profiles.
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Literature Cited
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O. B. Pyshkin, “An experimental rock-sand dam 15 m high,” Izv. VNIIG,90 (1969).
S. V. Izbash, P. M. Slisskii, and A. I. Smolyak, “Investigations on sluicing-in rock fills with sand,” Gidrotekh Stroitel', No. 2 (1961).
V. N. Zhilenkov, “On washing-in sand into fills of unsorted rock dumped into water by the pioneer method,” in Sbornik Dokladov po Gidrotekhnike, No. 4, Gosénergoizdat (1962)
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Additional information
Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 7, pp. 38–41, July, 1971.
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Pyshkin, O.B. An experimental rock-sand dam. Hydrotechnical Construction 5, 657–660 (1971). https://doi.org/10.1007/BF02397666
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DOI: https://doi.org/10.1007/BF02397666