Corotating preventor of excavated soils in a ground improvement

Details Corotating preventor of excavated soils in a ground improvement Corotating preventor of excavated soils in a ground improvement

1989-12-05

1991-04-09

Taylor, Dennis L.

Hydraulic and earth engineering

Foundation

Columnar structure

405236, 405232, 405267, E02D 556

Patent

active

050060163

ABSTRACT:
An excavation rod of a ground improvement apparatus is provided with an excavation blade and plural steps of agitation blades above the excavation blade. A corotation prevention blade which does not rotate during the excavation vertically and rotationally, is provided between the excavation blade and the agitation blade and plurality of downwardly projecting fingers are secured to the corotating prevention blade.

REFERENCES:
patent: 2782605 (1957-02-01), Wertz et al.
patent: 3023585 (1962-03-01), Liver
patent: 4537536 (1985-08-01), Tsubonuma et al.
patent: 4793740 (1988-12-01), Schellhorn
patent: 4902172 (1990-02-01), Fukuda

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