Drilling device in PHC pipe pile and construction method thereof

The invention discloses an in-pile drilling device for a PHC pipe pile and a construction method of the in-pile drilling device, the drilling device comprises a hydraulic pushing device, a drill rod, a drill bit, a transition sleeve and a guide device, the two ends of the drill rod are fixed through...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HUANG PENGFEI, WANG LEBIN, SANG DENGFENG, LOU XUEQIAN, LIN YUNFEI, WANG XING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES
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Beschreibung
Zusammenfassung:	The invention discloses an in-pile drilling device for a PHC pipe pile and a construction method of the in-pile drilling device, the drilling device comprises a hydraulic pushing device, a drill rod, a drill bit, a transition sleeve and a guide device, the two ends of the drill rod are fixed through the hydraulic pushing device and the drill bit respectively, and the transition sleeve is connected to the drill rod in a sleeving mode; the guide device comprises a connecting rod, a contact wheel, a rotating gripper and a shock absorber, one end of the connecting rod is hinged to the outer wall of the transition sleeve, the other end of the connecting rod is connected with one end of the rotating gripper through a bearing, and the contact wheel is installed at the other end of the rotating gripper; one end of the shock absorber is connected with the rod body of the connecting rod through the connecting pile casing, and the other end of the shock absorber is hinged to the transition sleeve. The technical problem