Ditching over buried lines

Details Ditching over buried lines Ditching over buried lines

1980-02-25

1982-05-11

Corbin, David H.

Hydraulic and earth engineering

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

With protection or indication of pipe or trench

37195, F16L 5700

Patent

active

043290841

ABSTRACT:
The method of ditching over a buried line involves making a hole, in advance of ditching, down to a level near a section of the buried line lying at the intersection with a proposed trench, spanning the line section with a line protector, and driving a ditching machine so that its excavating member makes the trench and in so doing rides in the trench over the protector and above the line section.

REFERENCES:
patent: 384948 (1888-06-01), Young
patent: 3734137 (1973-05-01), Stanley
patent: 3807183 (1974-04-01), Wolff
patent: 3911602 (1975-10-01), Trevathan

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