PLANT FOR CONCRETING CAST-IN-PLACE PILES Russian patent published in 1999 - IPC

FIELD: construction engineering. SUBSTANCE: plant for concreting cast-in-place piles has transport facility with load-hoisting mechanism and drilling working member, casing pipe and concrete delivery pipe, hydraulic vibrator, head-piece secured on lower end of concrete delivery pipe, hollow vibrating tamper with flat steel vibrating wings, and power drive unit. Hydraulic vibrator and head-piece are combined into single unit in the form of common housing which carries hydraulic clamp and shock absorbers. Head-piece is provided with taper-type catcher in its lower part. Housing has central through-hole for supply of concrete mix into concrete delivery pipe. Application of aforesaid embodiment of plant ensures higher load-bearing capacity of structure, enhancing water-impermeability and frost-resistance of reinforced concrete of building structure with monolithic character of placed concrete and liquidation of hollows and cavities. EFFECT: higher efficiency. 6 cl, 11 dwg