System for placing freshly mixed concrete on the seafloor

Details System for placing freshly mixed concrete on the seafloor System for placing freshly mixed concrete on the seafloor

1979-11-23

1981-05-12

Corbin, David H.

Hydraulic and earth engineering

Marine structure or fabrication thereof

Cast in situ

405303, E02D 1506

Patent

active

042668891

ABSTRACT:
A means for placing freshly mixed concrete on the ocean floor at great des. A pipeline is grossly positioned by a ship whereas the position of the submerged end is controlled by guide wires, water jets, props, etc. The discharge device at the end of the pipeline includes a slip joint, a tank flooded with seawater to maintain the pipe end submerged a certain distance in the concrete, and an expansion chamber where the velocity of the concrete being discharged is reduced. Deflector means at the pipe end directs the concrete laterally and negates the vertical lift component of the discharging concrete.

REFERENCES:
patent: 1256074 (1918-02-01), Taft
patent: 2780920 (1957-02-01), Silvert
patent: 2986889 (1961-06-01), Ludwig
patent: 3688510 (1972-09-01), Keating
patent: 3791153 (1974-02-01), Inoue et al.
patent: 3861157 (1975-01-01), Hillen
patent: 4129008 (1978-12-01), Nakahara et al.

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