Propulsion method and apparatus for advancing a marine pipeline

Details Propulsion method and apparatus for advancing a marine pipeline Propulsion method and apparatus for advancing a marine pipeline

1984-08-17

1986-05-13

Husar, Cornelius J.

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

405141, 405159, E02D 1700, E21D 1000, F16L 104

Patent

active

045883297

ABSTRACT:
One construction method for burying offshore pipelines utilizes a segmented excavation shield for forming a trench in the seafloor. The present invention provides a propulsion method for advancing the shield which eliminates the need to pull the shield. This is done by advancing skin plates which are attached to the shield, then advancing the shield by transmitting soil reaction through the skin plates, which remain stationary, to the shield.

REFERENCES:
patent: 2715889 (1955-08-01), Bixler et al.
patent: 2908140 (1959-10-01), Everson
patent: 3608319 (1971-09-01), Quitadamo
patent: 3916629 (1975-11-01), Thompson
patent: 3967454 (1976-07-01), Barnes
patent: 4044565 (1977-08-01), Stuckmann

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