Plant for digging and shoring up the walls of tunnels during exc

Details Plant for digging and shoring up the walls of tunnels during exc Plant for digging and shoring up the walls of tunnels during exc

1990-08-30

1992-02-25

Taylor, Dennis L.

Hydraulic and earth engineering

Underground passageway, e.g., tunnel

Boring

405142, 405138, E21D 900

Patent

active

050908448

ABSTRACT:
The invention falls within the art field of shields used in the excavation of tunnels for any given utility (rail, road, underground railway, sewers, pipelines, power cables etc.), and of all sizes. The plant disclosed provides a temporary support structure for tunnel walls, entirely self-propelled and extendible along the direction of excavation, the interior of which accommodates equipment used in digging operations and for the removal of spoil; accordingly, the structure acts as a temporary shoring facility during excavation works, moving forward through the bore and carrying within it the complete battery of excavation and auxiliary equipment while enabling installation immediately behind of the permanent pre-cast or cast in-situ tunnel lining.

REFERENCES:
patent: 3613384 (1971-10-01), Jacobs
patent: 4095435 (1978-06-01), Vemura
patent: 4398845 (1983-08-01), Stuckmann et al.
patent: 4640646 (1987-02-01), Hentschel
patent: 4789267 (1988-12-01), Babendererde et al.
patent: 4813813 (1989-03-01), Yamamoto et al.

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