Method of and device for solidifying rock in mine tunnels and th

Details Method of and device for solidifying rock in mine tunnels and th Method of and device for solidifying rock in mine tunnels and th

1982-03-23

1984-07-24

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Chemical

405269, E21D 2002

Patent

active

044616007

ABSTRACT:
A tubular rock bolt of strong elastomeric material, inserted into a bore of a tunnel roof or a mine face, has an outlet end spaced from the remote end of the bore through which a hardenable adhesive mass is inserted under pressure by way of an inlet in the opposite bolt extremity. An obstruction inserted between the bore wall and the bolt allows only some of the adhesive mass to enter a proximal portion of the bore under considerably lower pressure, either by flowing through or past the obstruction or by exiting through one or more restricted openings in the bolt periphery.

REFERENCES:
patent: 3204416 (1965-09-01), Williams
patent: 3494134 (1970-02-01), Jorge
patent: 4362440 (1982-12-01), Glaesmann et al.

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