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Combined PHC pipe pile capable of reducing negative friction effect
The invention discloses a combined PHC pipe pile capable of reducing a negative friction effect. The combined PHC pipe pile comprises an upper PHC pipe pile section and a lower PHC pipe pile section, wherein a telescopic part is arranged between the two PHC pipe pile sections; the telescopic part comprises a telescopic part top plate, a telescopic part bottom plate and a hydraulic jack positioned between the telescopic part top plate and the telescopic part bottom plate; a hook is welded at the lower bottom surface of the telescopic part top plate; small pulleys are welded at the top surface of the telescopic part bottom plate; the telescopic part is internally provided with a steel strand; one end of the steel strand is tied to the hook at the lower bottom surface of the telescopic top plate, and the other end of the steel strand downwards bypasses two small pulleys on the telescopic part bottom plate, then upwards passes through a small hole of the telescopic part top plate and then is connected with an intra-pile bracket on the top of the PHC pipe pile through the interior of the PHC pipe pile; the top of the PHC pipe pile is provided with a displacement transfer device. According to the combined PHC pipe pile, the hydraulic jack is utilized for actively settling the upper PHC pipe pile section, so that the negative friction resistance of a pile body can be effectively reduced or even eliminated.
Combined PHC pipe pile capable of reducing negative friction effect
The invention discloses a combined PHC pipe pile capable of reducing a negative friction effect. The combined PHC pipe pile comprises an upper PHC pipe pile section and a lower PHC pipe pile section, wherein a telescopic part is arranged between the two PHC pipe pile sections; the telescopic part comprises a telescopic part top plate, a telescopic part bottom plate and a hydraulic jack positioned between the telescopic part top plate and the telescopic part bottom plate; a hook is welded at the lower bottom surface of the telescopic part top plate; small pulleys are welded at the top surface of the telescopic part bottom plate; the telescopic part is internally provided with a steel strand; one end of the steel strand is tied to the hook at the lower bottom surface of the telescopic top plate, and the other end of the steel strand downwards bypasses two small pulleys on the telescopic part bottom plate, then upwards passes through a small hole of the telescopic part top plate and then is connected with an intra-pile bracket on the top of the PHC pipe pile through the interior of the PHC pipe pile; the top of the PHC pipe pile is provided with a displacement transfer device. According to the combined PHC pipe pile, the hydraulic jack is utilized for actively settling the upper PHC pipe pile section, so that the negative friction resistance of a pile body can be effectively reduced or even eliminated.
Combined PHC pipe pile capable of reducing negative friction effect
HUANG TING (author) / WU BIN (author) / HE RUI (author) / ZHENG JINHAI (author)
2015-12-30
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
,
Gründungen
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