Soil-displacement drill and method for manufacturing pile

Details Soil-displacement drill and method for manufacturing pile Soil-displacement drill and method for manufacturing pile

E - Fixed Constructions

02

D

255/67, 61/82

E02D 5/62 (2006.01) E21B 7/26 (2006.01) E21B 10/44 (2006.01)

Patent

CA 1225985

ABSTRACT OF THE DISCLOSURE A soil-displacement drill comprises a drill pipe and a head having an upwardly extending cylindrically- shaped portion and a downwardly directed conically-shaped portion having an apex, the head being mounted on the lower end of the drill pipe. At least two equally spaced spiral ribs on the head, each define a substantially vertical section extending from the apex of the conically- shaped portion to the cylindrically-shaped portion and a substantially horizontally extending radial section extending around a portion of the cylindrically-shaped portion as an extension of the substantially vertical section.

468719

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