ARRANGEMENT FOR SINKING AND EXTRACTING PILES AND SHEET PILES Russian patent published in 1994 - IPC

FIELD: building. SUBSTANCE: pipe and sheet pile sinking arrangement includes base vehicle, pressing-in mechanism mounted on base vehicle and provided with hydraulic jacks, rotary boom with pivotally connected guide, loading device and outriggers. Rotary guide supports drilling mechanism with swivel head. Pressing-in device is made in the form of mechanism secured on rotary boom and intended for anchoring base vehicle. Rotary guide and rotary boom are put into working position by means of power cylinders. Pressing-in mechanism has housing accommodating at the top movable cylindrical bushing with rigidly secured upper pivot joint made in the form of rotary circle. Mounted at the bottom inside housing is stationary bushing with lower pivot joint. Rods of hydraulic jacks are pivoted to movable cylindrical bushing by means of half-rods. Clamping device consists of two half-couplings connected with each other by cross-joint, lower half-coupling being made in the form of sleeve provided with changeable clamping blocks with clamping screws. EFFECT: enlarged operating capabilities of arrangement and improved efficiency in pile sinking. 3 dwg