Driving of tunnels

Details Driving of tunnels Driving of tunnels

1973-12-06

1976-04-20

Taylor, Dennis L.

61 42, E01G 302

Patent

active

039509567

ABSTRACT:
An apparatus for driving a tunnel, the apparatus having a knife shield composed of a circular array of elongate knife implements supported by a frame and attachable to a drive frame which can be moved to cause the implements to penetrate into a working face in order to excavate material therefrom. To the rear of the knife shield there is an advanceable temporary lining composed of tube sections arranged end-to-end and designed to support the newly-formed tunnel. This advanceable lining extends into a rear shield composed of a rearwardly extending portion of the implements lined with plank members.
A tubular revetment has a flange which abuts the advanceable lining at the side remote from the knife shield and fluid concrete is inserted around the periphery of the revetment to form a permanent tunnel lining, separated from the advanceable lining by the flange. The advanceable lining and the revetment are moved up from time to time as the driving progresses.

REFERENCES:
patent: 834745 (1906-10-01), Moir
patent: 1275910 (1918-08-01), Hamilton
patent: 1814852 (1931-07-01), Proctor
patent: 1855466 (1932-04-01), Barber et al.
patent: 2208608 (1940-07-01), Stanley
patent: 3339980 (1967-09-01), Winberg
patent: 3407609 (1968-10-01), Kosogorin
patent: 3413811 (1968-12-01), Giacobino
patent: 3581507 (1971-06-01), Stevens
patent: 3613384 (1971-10-01), Jacobs
patent: 3650116 (1972-03-01), Cunningham

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