DRILLING AUGER HEAD

PROBLEM TO BE SOLVED: To provide a drilling auger head capable of carefully performing agitation of improved soil without increasing the number of reciprocation of the drilling auger head.SOLUTION: A drilling auger head 1 includes: a drilling shaft 2 which is rotatingly driven; drilling blades 3, 4...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KONNO YASUYUKI, YASUDA SHIGEO
Format:	Patent
Sprache:	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:	PROBLEM TO BE SOLVED: To provide a drilling auger head capable of carefully performing agitation of improved soil without increasing the number of reciprocation of the drilling auger head.SOLUTION: A drilling auger head 1 includes: a drilling shaft 2 which is rotatingly driven; drilling blades 3, 4 fixed to a lower end of the drilling shaft 2 and each having a plurality of drilling bits 9; a plate-like corotation prevention blade 6 attached to the drilling shaft 2 above the drilling blades 3, 4 in a rotatable manner and extending outward in the radial direction of the drilling shaft 2; a belt-like first agitating blade 7 fixed to the drilling shaft 2 above the corotation prevention blade 6 and formed so that it draws a spiral around and along the drilling shaft 2 in a position separated outside of the drilling shaft 2 in the radial direction; and a plate-like second agitating blade 8 fixed to the drilling shaft 2 above the first agitation blade 7 and extending outward in the radial direction of the drilling shaft 2.