Method of stabilizing a rock structure

Details Method of stabilizing a rock structure Method of stabilizing a rock structure

1986-06-16

1987-09-29

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Rock or earth bolt or anchor

29421R, 72 58, 411 19, E21D 2000

Patent

active

046966064

ABSTRACT:
A rock bolt in the form of a steel tube (11) is placed in a borehole in rock and is then expanded against the rock by means of an expandable body (15) inside it. The expandable body (15) comprises a rubber hose which is temporarily pressurized to a pressure that is usually 50-100 MPa so that the bolt anchors in the borehole. The expandable body (15) is part of a mounting tool and it is withdrawn immediately when depressurized.

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patent: 4635333 (1987-01-01), Finch

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