Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Repair – replacement – or improvement
Patent
1985-03-22
1986-12-23
Corbin, David H.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Repair, replacement, or improvement
405143, 405154, F16L 102
Patent
active
046309675
ABSTRACT:
The invention refers to an arrangement for underground driving of pipe trains composed of individual pipe lengths of non-man-sized diameters. The arrangement works with a pressing unit driving the pipe trains from driving pits. The soil in face of the arrangement is excavated by means of a scraper. Conveyors transport the excavated waste soil back into the driving pit. The walls of massive material of the pits, which will serve as inspection pits later-on in the pipe trains, when driving are the walls of the driving pits, while the driving unit is propped-up on the wall of the respective driving pit used as a driving pit. The wall of the driving pit has a preferably circular shape and is composed of concrete rings. Above the driving pit a container is arranged with an opening in the bottom through which the driving unit can be hoisted down into the driving pit. In the container all working tools and appliances for operating the driving unit are permanently housed ready for use.
REFERENCES:
patent: 4024721 (1977-05-01), Takada et al.
patent: 4176985 (1979-12-01), Cherrington
patent: 4318835 (1982-03-01), Clarke
patent: 4388021 (1983-06-01), Weiss
patent: 4423981 (1984-01-01), Nilberg
"TIS", Aug. 1981, pp. 550-554.
"TIS", Mar. 1982, pp. 129-134.
Corbin David H.
Greigg Edwin E.
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