Underwater trenching and pipe-laying devices

Details Underwater trenching and pipe-laying devices Underwater trenching and pipe-laying devices

1985-04-01

1987-02-17

Corbin, David H.

Hydraulic and earth engineering

Subterranean or submarine pipe or cable laying, retrieving,...

Submerging, raising, or manipulating line of pipe or cable...

405164, F16L 104, E02F 510

Patent

active

046436138

ABSTRACT:
For burying piping (1) in a sea-bed, at least one excavating machine (3) is provided for forming a first trench (4) parallel to the front portion (1.sub.1) of the piping and to a guide formwork (5) adapted both for moving parallel to the first trench (4) and for then forming automatically, during its horizontal advance, a second trench (8) parallel to this first trench, contiguous therewith and extending planewise in the extension of the front piping portion, said structure having for this purpose an oblique front moldboard (9) which pushes back laterally into the first trench the earth engaged thereby and for automatically burying the piping (1) in the second trench (8) thus formed.

REFERENCES:
patent: 2067717 (1937-01-01), Lawton et al.
patent: 3238734 (1966-03-01), Rhodes
patent: 3504504 (1970-04-01), Elliott
patent: 3540226 (1970-11-01), Sherrod
patent: 4091629 (1978-05-01), Gunn et al.
patent: 4301606 (1981-11-01), Hofmeester

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