TY JOUR TI DEVELOPMENT OF DESIGNS OF BORED CONIC PILES KW the bored pile KW conicity of a pile KW the pile model KW a soil tray KW static testing bearing a capability KW efficiency JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Rybnikova, I.A. AU Rybnikov , A.. PY 2017 IS 2 PB Belgorod State Technological University named after V.G. Shukhov