Conclusions
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1.
The proposed technology markedly increased the rate of rock excavation in the pits of the Kurpsa hydrostation.
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2.
A considerable reduction in expenditure of heavy manual labor on drilling holes and on works with picks was achieved.
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3.
The quality of the prepared foundation completely corresponded to the technical specifications.
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Literature cited
V. F. Ilyushin et al., “Temporary diversion tunnel with a lightweight lining at the Kurpsa hydroelectric station,” Gidrotekh. Stroit., No. 5 (1980).
Technical Regulations on Conducting Blasting Works in Power Construction [in Russian], Energiya, Moscow (1972).
A. E. Azarkovich, A. V. Korenistov, and M. I. Shuifer, “Calculation of zones of disturbance of rock foundations by explosions and selection of rational schemes of drilling and blasting at the contours of foundation pits,” Gidrotekh. Stroit., No. 1 (1979).
Additional information
Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 4, pp. 5–6, April, 1981.
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Rozin, M.N., Korenistov, A.V. & Yushkovskii, L.M. Preparation of the foundation pits of the Kurpsa hydroelectric station without leaving a protective layer at the foundation. Hydrotechnical Construction 15, 203–205 (1981). https://doi.org/10.1007/BF01429059
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DOI: https://doi.org/10.1007/BF01429059