Shield tunneling machine

Details Shield tunneling machine Shield tunneling machine

1985-07-25

1986-12-16

Corbin, David H.

Hydraulic and earth engineering

Underground passageway, e.g., tunnel

Boring

405153, E21D 906, E21D 1108

Patent

active

046293620

ABSTRACT:
A shield tunneling machine in which a segment holding member is movable through a lifting beam in the radial direction of a shield frame so that the segment holding member holds a segment and sets it at a predetermined position in the circumferential direction of a tunnel within the shield frame; and an end balancer is pivotably connected to a base or root balancer which in turn is slidably mounted on the lifting beam so that the segment held by the segment holding member is correctly set at a predetermined position while the posture of the segment is suitably adjusted, whereby the erection and assembly of segments can be easily accomplished.

REFERENCES:
patent: 3075359 (1963-01-01), Clark
patent: 3678694 (1972-07-01), Haspert
patent: 4505622 (1985-03-01), Asszonyi et al.

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