Apparatus for yielding support of rock

Details Apparatus for yielding support of rock Apparatus for yielding support of rock

1997-02-07

1999-03-16

Graysay, Tamara L.

Hydraulic and earth engineering

Earth treatment or control

Rock or earth bolt or anchor

411 9, 411 10, E21D 2000, E21D 2100, E21D 2316, E21D 2326

Patent

active

058821481

ABSTRACT:
An apparatus for yielding rock support in a rock bolt where yielding is achieved by one or more yielding elements at one or more levels of loading.

REFERENCES:
patent: 4295760 (1981-10-01), Warner
patent: 4984937 (1991-01-01), Karpellus

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