FIELD: industrial and civil construction, particularly to erect new buildings, to reinforce foundations of existent buildings and building structures and to construct supports taking alternating loads.
SUBSTANCE: method involves forming pilot hole in ground by hole drilling along with delivering cut ground to ground surface by means of hollow auger drilling assembly provided with rock-cutting tool; removing hollow auger drilling assembly with rock-cutting tool from hole; arranging metal frame in hole and filling holes with concrete. Helical groove is created in pilot hole wall so that helix lead may be changed. Concrete mix is supplied through inner channel of auger drilling assembly to fill cavity formed in pilot hole and helical slot as drilling assembly moves upwards. Metal frame is arranged in hole after total drilling assembly removal from hole and hole filling with concrete mix.
EFFECT: increased load-bearing capacity of bored pile and extended field of application due to possibility of said method usage for foundation construction in any ground.
5 cl, 3 dwg
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