Apparatus for and method of driving tunnels

Details Apparatus for and method of driving tunnels Apparatus for and method of driving tunnels

1982-07-15

1984-05-29

Husar, Cornelius J.

Hydraulic and earth engineering

Underground passageway, e.g., tunnel

Boring

405150, E21D 906, E21D 1110

Patent

active

044511760

ABSTRACT:
Apparatus for, and a method of, driving a tunnel utilizes a drive shield to support the forward end of the tunnel where debris material is removed. At the rear end of the drive shield, a lining is created to cover the exposed tunnel wall. This lining is produced by simply spraying concrete rearwardly directly between the space between multi-part formwork and the tunnel wall itself. The formwork may overlap with the drive shield. The formwork is advanced to follow the progress of the drive shield by removing part of the formwork from the rear and re-siting this part at the front end.

REFERENCES:
patent: 3550382 (1970-12-01), Khodosh
patent: 3561223 (1971-02-01), Tabor
patent: 4043137 (1977-08-01), Jutte
patent: 4120165 (1978-10-01), Stuckmann
patent: 4147453 (1979-04-01), Unger et al.
patent: 4222681 (1980-09-01), Khodosh

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