Method for forming deep cast-in-place caseless concrete piles

Details Method for forming deep cast-in-place caseless concrete piles Method for forming deep cast-in-place caseless concrete piles

1975-10-29

1977-03-01

Shapiro, Jacob

Plastic and nonmetallic article shaping or treating: processes

Outside of mold sintering or vitrifying of shaped inorganic...

Including plural heating steps

264 31, E02D 534

Patent

active

040095827

ABSTRACT:
A method for forming a deep cast-in-place concrete pile in the earth extending to an excessive depth by driving a hollow metallic pipe member having a height to span a substantial fraction of the design depth of the completed pile into the ground for almost its full depth, coupling a connector and hollow tubular driving mandrel to the top of the pipe section, driving the mandrel to advance the pipe section to the design depth while concurrently gravity feeding flowable concrete into the mandrel and pipe member extending therebelow, and withdrawing the mandrel leaving a monolithic concrete pile column encased by the pipe member over its lower portion.

REFERENCES:
patent: 1072491 (1913-09-01), Pierce
patent: 1883010 (1932-10-01), Sherwood
patent: 3851485 (1974-12-01), Steding

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