Patent
1975-01-27
1977-06-07
Gilliam, Paul R.
61 535, E02D 530, E02D 532
Patent
active
040274918
ABSTRACT:
Segmental shell halves of inventive subject matter are adapted to be assembled at an earth situs to form a tubular cavity drilling auger having hollow spiral flighting. The assembled tubular shell including the hollow flighting is filled with fluid, self-hardenable, cementitious material at the situs, and then drilled into the situs to given full cavity depth to be retained in the cavity as an anchored load-bearing pile or like solid column. Any number of units can be preassembled and filled with the cementitious material at a situs, ready for drilling into the earth in convenient, rapid succession, thereby to avoid costly losses experienced heretofore due to workmen and equipment awaiting possible spasmodic delivery of premixed cementitious material, for example. Unassembled hollow shell halves are adapted to be compactly stacked one within another for storage or shipping purposes.
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Gilliam Paul R.
Grosz Alex
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