Patent
1974-09-16
1976-06-15
Shapiro, Jacob
61 5362, E02D 524
Patent
active
039628795
ABSTRACT:
A concrete pile or like concrete column formed in earth situs by rotating a continuous flight auger consisting of one or more sections into the earth to form a cavity of given depth; rotating the auger to remove augered earth from the cavity without removing the auger therefrom, and replacing the removed earth from the auger flights with fluid cement mortar, which hardens to form a column reinforced by the auger resultantly anchored in the same. A plurality of short auger sections may be connected together in succession during drilling to form a cavity of requisite depth by increments when low headroom conditions exist. A portion of the auger or a shaft portion without auger flighting thereon may also protrude above the earth situs for extension through water and the like and be filled with cementitious material which is allowed to harden. The method may also include first filling the auger shaft with the fluid mortar and allowing the same to harden in the shaft with a passage extending therethrough, and supplying more mortar through the passage to fill the cavity to form the column against backing of hardened mortar in the shaft.
REFERENCES:
patent: 3091090 (1963-05-01), Muller
patent: 3608317 (1971-09-01), Landau
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