Method for producing in-situ concreted piles with enlarged bases

Details Method for producing in-situ concreted piles with enlarged bases Method for producing in-situ concreted piles with enlarged bases

1983-10-27

1985-10-01

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Forming structural installations in situ

Arched, domed, or vertical-cylindrical structure

405237, 405242, 405243, 425 59, E04B 116, E02D 544

Patent

active

045445150

ABSTRACT:
A method and apparatus for producing in-situ concrete piles with enlarged bases. The method includes the steps of: driving into the ground a tube provided at its lower end with a shoe which is larger than the diameter of the tube, and with an outer casing attached around its lower portion; filling fresh concrete into the gap between the tube and the soil as fast as the opening in the soil is formed; expelling the shoe and a plug of concrete to form the enlarged base; and extracting the tube together with the outer casing.

REFERENCES:
patent: 1477567 (1923-12-01), Lancaster
patent: 1858204 (1932-05-01), Frankignoul
patent: 2649694 (1953-08-01), Pickman
patent: 3206935 (1965-09-01), Phares
patent: 3512365 (1970-05-01), Muller
patent: 3851485 (1974-12-01), Steding
patent: 4012915 (1977-03-01), Poma
patent: 4158518 (1979-06-01), Rusche

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