Conclusion
It is necessary to revive the use of borescopy during check drilling of hydraulic structures being inspected in cases of poor core recovery.
The simplicity, clearness, and cheapness of using borescopy compared with other methods make an evaluation of the state of concrete in structures generally available.
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Literature cited
A. M. Viktorov, On-Site Investigations of Concrete in Hydraulic Structures [in Russian], Gosstroiizdat, Moscow (1956).
A. M. Viktorov, Experience of Photography in Boreholes [in Russian], Gosgeolizdat, Moscow (1958).
A. M. Viktorov, “Investigations of concrete in hydraulic structures by drilling,”Gidrotekh. Stroit., No. 11 (1956).
Additional information
Translated fromGidrotekhnicheskoe Stroitel'stvo, No. 5, p. 36, May, 1993.
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Viktorov, A.M. Revive borescopic investigations of hydraulic structures. Hydrotechnical Construction 27, 295–296 (1993). https://doi.org/10.1007/BF01545669
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DOI: https://doi.org/10.1007/BF01545669