FIELD: foundations for buildings and building structures, particularly to be erected in soft ground.
SUBSTANCE: method involves driving two screw pile feet with the use of device, which is suspended to vehicle provided with pile guiding mast, hoisting means, two reciprocating pulsator jacks, ratchet mechanism and steel pipes. The ratchet mechanism converts reciprocal movement into rotation. The steel pipes impart rotation to reinforced concrete pile feet for simultaneous driving thereof in ground. One reinforced concrete pile foot has multistart blades defining right-handed spiral. Another reinforced concrete pile foot has multistart blades defining left-handed spiral to provide driving of one reinforced concrete pile foot in clockwise direction and another reinforced concrete pile foot in counterclockwise direction. Body and pistons of each pulsator jack pair are articulated to ratchet mechanism corbels of the first and the second steel pipes. The pulsator jacks work in mutual opposition and are in equilibrium with each other.
EFFECT: increased capacity and reduced material consumption.
3 dwg
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