Drive screw pile

Details Drive screw pile Drive screw pile

1985-03-04

1987-03-17

Yuen, Henry C.

Hydraulic and earth engineering

Foundation

Columnar structure

52157, E02D 700

Patent

active

046503722

ABSTRACT:
A drivable pile with a plurality of helical flanges affixed radially symmetrically about the external surface of an elongated pile member. In a preferred embodiment, two flanges are diametrically opposed at radial positions 180.degree. apart with an axial pitch of 30.degree. to the longitudinal axis. The helical flanges complete a sum total of approximately one turn along a portion of the length of the pile member and are removed slightly from the lower end of the pile.

REFERENCES:
patent: 101379 (1870-03-01), Parker
patent: 226664 (1880-04-01), Kirkup
patent: 996688 (1911-07-01), Vernon-Inkpen
patent: 1791368 (1931-02-01), Mullett
patent: 1960639 (1934-05-01), Kuhn
patent: 2151847 (1937-12-01), Greulich
patent: 2643843 (1953-06-01), Brown
patent: 3797257 (1974-03-01), Long
patent: 3952523 (1976-04-01), Gale
patent: 4239419 (1980-12-01), Gillen, Jr.

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