TY JOUR TI THE METHOD OF PREPARATION THE STRAIN GAUGE STUDIES OF NATURAL BORED CONICAL PILES’ PERFORMANCE KW bored piles KW diameter of piles KW strain gauge KW messdoses KW tenzodinamometr KW measurement error JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Rybnikova, I.A. AU Rybnikov, A.M. PY 2019 IS 4 PB Belgorod State Technological University named after V.G. Shukhov