Conclusions
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1.
The earth-rock dam is suited to the engineering-geologic conditions of the Arpachai valley, which are characterized by a complex tectonic structure, presence of a deep alluvial incision in the flood-plain of the river, and high seismicity of the region.
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2.
Geotechnical control carefully performed during construction made it possible to achieve the indices of the soils in the dam stipulated by the design. It should be acknowledged that the requirements of the standards [2, 3] with respect to the number of determinations of the granulometric composition of sand-gravel soils (one determination per 1000–2000 m3 of fill), in our opinion, are markedly overstated. It apparently should be based on the specific properties of the soil with consideration of its granulometric composition.
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Literature cited
G. O. Ovsepyan, “Engineering-geologic conditions of constructing dams in the valley of the Eastern Arpachai River,” in: Summaries of Reports of the Fourth Conference in Surveyors of Gidroproekt, Eng. Sec. [in Russian], No. 1, Informénergo, Moscow (1972).
SNiP III-B.1-71. Earth Structures. Rules of Performing and Accepting the Works [in Russian], Stroiizdat, Moscow (1972).
Guide to Quality Control of the Construction of Earth Dams. II 42–75 [in Russian], VNIIG, Leningrad (1976).
G. O. Ovsepyan, “Quality control during construction of earth dams,” Gidrotekh. Stroit., No. 8 (1973).
Additional information
Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 8, pp. 36–38, August, 1979.
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Ovsepyan, G.O. Dam on the Arpachai River. Hydrotechnical Construction 13, 795–798 (1979). https://doi.org/10.1007/BF02305310
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DOI: https://doi.org/10.1007/BF02305310