Tunneling machine

Details Tunneling machine Tunneling machine

1984-11-26

1986-12-09

Novosad, Stephen J.

Hydraulic and earth engineering

Underground passageway, e.g., tunnel

Boring

405150, 405141, 299 31, 299 33, E21D 908

Patent

active

046277650

ABSTRACT:
A tunneling machine of the type having a leading shield, a trailing shield, an annular form connected to the trailing shield by respective cylinder units for the emplacement of the concrete behind the machine and cylinder units for relatively advancing the leading and trailing shields, is also equipped with a telescoping shield assembly with its own set of cylinder units so that the concrete emplacement can be decoupled from the advance of the cutting head on the leading shield.

REFERENCES:
patent: 3967463 (1976-07-01), Grandori
patent: 4055959 (1977-11-01), Fritz
patent: 4140345 (1979-02-01), Babendererde et al.
patent: 4398845 (1983-08-01), Stuckmann et al.
patent: 4420188 (1983-12-01), Robbins et al.
patent: 4436448 (1984-03-01), Magnus
patent: 4508390 (1985-04-01), Bessac

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