Process and arrangement for the support of underground cavity sy

Details Process and arrangement for the support of underground cavity sy Process and arrangement for the support of underground cavity sy

1980-06-02

1985-03-19

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

405146, 405150, E21D 1100

Patent

active

045056226

ABSTRACT:
This invention relates to a method for bracing an underground cavity, wherein the cavity is lined with a tensionable layer, an expansible arch is then inserted against said layer, the arch is then tensioned and clamped in position to exert pressure in accordance with a specified formula.

REFERENCES:
patent: 2148783 (1939-02-01), Spaulding
patent: 3304954 (1967-02-01), Kaiser
patent: 3381479 (1968-05-01), Curzio
patent: 4010616 (1977-03-01), Lovat

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