Method for controlling a final pile diameter in a cast-in-place

Details Method for controlling a final pile diameter in a cast-in-place Method for controlling a final pile diameter in a cast-in-place

1993-08-26

1995-07-25

Corbin, David H.

Hydraulic and earth engineering

Foundation

Columnar structure

405269, E02D 534

Patent

active

054356687

ABSTRACT:
An apparatus for forming a pile having a predetermined pile diameter in a cast-in-place pile includes an agitating apparatus. The agitating apparatus includes a pipe having a longitudinal axis which extends into the ground, and two nozzles are respectively disposed on and supported on the pipe. Each of the plurality of nozzles produces a directional jet flow of liquid. Additionally, an arrangement is provided for supplying liquid under pressure to the two nozzles. The two nozzles are spaced apart a predetermined distance along the longitudinal axis of the pipe, and are oriented such that fluid flow from the two nozzles intersects at a predetermined radial distance from the pipe, so that a cross jet flow is established at the predetermined radial distance to establish an outermost mixing of hardener and settable mixture. A final hardened pile diameter forms at the predetermined radial distance.

REFERENCES:
patent: 1852903 (1932-04-01), Salmon
patent: 5256004 (1993-10-01), Gemmi et al.
patent: 5304016 (1994-04-01), Kunito

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