PLANT TO SINK PILES BY FORCING IN Russian patent published in 2003 - IPC

FIELD: construction industry. SUBSTANCE: proposed plant includes rotary and running gears of tower crane with section of rail track exceeding length of running gear by less than 1/3. Mobile frame carrying weight and grippers of rail track put on carriages of tower crane is mounted for longitudinal movement on load frame. Two extended hydraulic supports are positioned in corners of load frame on side of pile driver mast, third mast is located in center of rotary gear. In this case its axis coincides with axis of rotary and running gears. Load frame is linked to rotary gear by means of rigid triangular system comprising columns and angle braces and making it possible to employ to the maximum own weight of plant while pile is sunk. Plant has two hydraulic cylinders placed in one plane at angle one to another, their bodies being anchored on pile driver mast and their rods being fixed on columns of triangular system. Pile driver mast is hinged to rotary gear and can collapse towards load frame to form L-shaped structure. Weight includes individual separable sections. EFFECT: increased forcing-in capability and resistance of plant to overturning during its movement across construction site. 5 cl, 5 dwg