Tunnel boring machine

Details Tunnel boring machine Tunnel boring machine

1987-12-15

1989-10-17

Corbin, David H.

Hydraulic and earth engineering

Underground passageway, e.g., tunnel

Boring

299 31, 405147, E21D 906

Patent

active

048742678

ABSTRACT:
Telescopic tunnel boring machine including a front shield (10) and a rear shield (16) with a cutting head (14) at the forward end of the front shield. Rearwardly extending shutters can be moved out hydraulically by auxillary cylinders (54) from the rear end of the rear shield to bridge the gap (34) between this rear end and tunnel lining elements (32). Additionally expandable cuffs (70) and (72) may be provided on the front and rear shields respectively behind the cutting head (14) and radial tunnel wall grippers (20).

REFERENCES:
patent: 3345108 (1967-10-01), Newman et al.
patent: 3410098 (1968-11-01), Winberg
patent: 3870368 (1975-03-01), Winberg et al.
patent: 3967463 (1976-07-01), Grandori
patent: 4055959 (1977-11-01), Fritz
patent: 4095435 (1978-06-01), Uemura
patent: 4222681 (1980-09-01), Khodosh et al.

Affiliated with

Also associated with

Rating

Tunnel boring machine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tunnel boring machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tunnel boring machine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1740260