Shield apparatus for use in tunnelling

Details Shield apparatus for use in tunnelling Shield apparatus for use in tunnelling

1977-12-12

1979-04-10

Shapiro, Jacob

Hydraulic and earth engineering

Underground passageway, e.g., tunnel

Boring

E01G 300

Patent

active

041485920

ABSTRACT:
Shield apparatus for tunnelling comprises a framework supporting drive members advanced individually or in groups as known per se. The framework and its drive members are carried by a pair of elongate floor beams arranged at the sides of the tunnel wall. Each floor beam has a longitudinal slot or groove therein which is open to the rear end of the beam. This slot or groove receives anchoring pins fitted in situ into the floor of the tunnel working so that the beams can slide along the pins in the direction of advancement.

REFERENCES:
patent: 3411826 (1968-11-01), Wallers et al.
patent: 3427813 (1969-02-01), Hayes
patent: 3509669 (1970-05-01), Plemeng
patent: 3823566 (1974-07-01), Handewith

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