FIELD: construction engineering. SUBSTANCE: head-piece can be used for sinking or extraction of piles. Head-piece has means for clamping of pile. This means is attached to vibration sinker. Pile clamping means is made in the form of clamping panels which are connected to vibration sinker by pivoted hangers. Clamping panels are connected to each other by mechanism of their parallel shifting. This parallel shifting mechanism is made in the form of wedge-shaped frame with its actuator. Wedge-shaped frame connects clamping panels to each other. Application of embodiment of head-piece allows for reliable fastening of vibration sinker on pile together with wider operating potentialities. EFFECT: higher efficiency. 1 dwg
