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STRESS PATH AND INSTABILITY AROUND MINE OPENINGS (1999)

Stope design in Canadian hard rock mines is often carried out using the Stability Graph Method. However, this method does not account for the low confinement measured around stopes or quantify the amount of dilution associated with stope caving. A new approach to stope hangingwall stability is presented which consider the stress path the stope experiences and the effect of low confinement. A case study is used to illustrate the methodology
Reference:
9th ISRM Congress, Paris. August 25-28 1999
Organization:
Laurentian University, Canada
Canada
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