Method and apparatus for continuously excavating shaft and tunne

Details Method and apparatus for continuously excavating shaft and tunne Method and apparatus for continuously excavating shaft and tunne

1990-09-10

1991-09-24

Taylor, Dennis L.

Hydraulic and earth engineering

Underground passageway, e.g., tunnel

Boring

299 31, 405138, F21D 906

Patent

active

050510320

ABSTRACT:
A shield excavator excavates a shaft. Then, the excavator is caused to swing to change its posture and excavate a tunnel. Thus, the shaft and the tunnel is continuously excavated by the single machine.

REFERENCES:
patent: 3169796 (1965-02-01), Long et al.
patent: 3604754 (1971-09-01), Hosel et al.
patent: 3830338 (1974-08-01), Svensson
patent: 3958649 (1976-05-01), Bull et al.
patent: 4571122 (1986-02-01), Yamamoto et al.

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