Tunnel driving apparatus

Details Tunnel driving apparatus Tunnel driving apparatus

1979-01-17

1981-02-24

Taylor, Dennis L.

Hydraulic and earth engineering

Underground passageway, e.g., tunnel

Boring

405145, E01G 300

Patent

active

042524636

ABSTRACT:
A drive shield of a tunnelling apparatus employs composite drive members or poling plates supported and guided for advancement in the driving direction on a frame. Each drive member has a front part pivotably connected to a rear part. The connection between the front and rear parts of each drive member is additionally designed to enable the rear part to be positionally adjusted as a whole in relation to the front part to bring their outer surfaces defining and supporting the tunnel wall, into exact alignment.

REFERENCES:
patent: 3415329 (1968-12-01), Marlind
patent: 3630574 (1971-12-01), Cox
patent: 3926005 (1975-12-01), Foik
patent: 4121673 (1978-10-01), Cherrington

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