PILE FOUNDATION REINFORCEMENT METHOD Russian patent published in 2007 - IPC E02D27/08 E02D3/12 

FIELD: construction, particularly pile foundation reinforcement.

SUBSTANCE: method involves increasing load-bearing pile capacity by displacing pile ends in opposite directions with respect to initial pile positions transversely to pile axes. Lower pile ends are displaced by injection of consolidation mix into space over pile ends through injector in two stages. At the first stage consolidation mix is injected under 0.1-0.2 MPa pressure; at the second stage pressure of consolidation mix to be injected is risen up to 2 MPa or consolidation or inert mix is injected in space between piles over pile ends through injector with releasable shell to form cylindrical or spherical body. After partial consolidation mix hardening the injector is removed from ground.

EFFECT: possibility to increase load-bearing ability of pile foundations after foundation construction.

5 cl, 4 dwg