Excavation roof support and method of installing the same

Details Excavation roof support and method of installing the same Excavation roof support and method of installing the same

1979-09-13

1981-07-07

Corbin, David H.

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

248354R, E21D 1500

Patent

active

042772044

ABSTRACT:
A method and a system are disclosed for supporting an overburden. A single-section or telescoped multi-section longitudinally slit prop casing of light sheet material such as cardboard or metal has a fabric bag installed in it. When the casing is erected the bag is filled with a slurry of hardenable substance which, upon hardening, forms in the bag a column which supports the overburden. The casing may be left in place or it may be removed for re-use.

REFERENCES:
patent: 1752101 (1930-03-01), Meutsch
patent: 3345824 (1967-10-01), Turzillo
patent: 4102138 (1978-07-01), Dreker et al.
patent: 4167361 (1979-09-01), Petro et al.
patent: 4185940 (1980-01-01), Spies

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