METHOD FOR PRODUCTION OF BORE PILE Russian patent published in 2016 - IPC E02D5/38 

FIELD: construction.

SUBSTANCE: invention relates to construction and can be used in construction of foundations, having high strength and stiffness characteristics, primarily bases and foundations of hydrotechnical structures. Method for production of bore pile, wherein casing pipe is submerged into soil until it stops at level of design mark. Method comprises extraction of soil from cavity of casing pipe, providing coaxial immersion into cavity of casing pipe of a steel pile to design mark. Before immersing steel pile into cavity of casing pipe, on its side outer surface along external perimeter of circular section secured at three points axisymmetrically on at least two levels on height of steel pile spring-loaded support retainers, then space between casing pipe and steel pile by high-pressure pump is filled with concrete mixture and casing pipe is simultaneously removed from soil.

EFFECT: technical result is high carrying capacity of pile, reduction of material consumption due to increased lateral friction of pile in soil.

4 cl, 1 dwg