Method of and apparatus for supporting an overburden

Details Method of and apparatus for supporting an overburden Method of and apparatus for supporting an overburden

1978-11-03

1981-02-10

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

248356, E21D 1518, E21D 1522

Patent

active

042498376

ABSTRACT:
A method and an arrangement are disclosed for supporting a roof of an underground excavation. A hollow prop casing of two or more telescopable sections is erected and telescoped apart until it bears on the floor and the roof. The sections are then biased against the floor and the roof and the prop casing is filled with a hardenable substance which upon hardening forms in the casing a solid column capable of supporting the roof.

REFERENCES:
patent: 1752101 (1930-03-01), Meutsch
patent: 1821020 (1931-09-01), Mensforth
patent: 2322855 (1943-06-01), Lenahan
patent: 2451777 (1948-10-01), Salas
patent: 2753036 (1956-07-01), Joy
patent: 2890854 (1959-06-01), Vogel
patent: 3292892 (1966-12-01), Abbott
patent: 3594973 (1971-07-01), Archer
patent: 3690110 (1972-09-01), Wiswell

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