Interpreting Measured Hanging Wall Deformation

CIM Vancouver 2016
Dr Douglas Milne (Associate Professor - University of Saskatchewan), Mr Garrett Snell (University of Saskatchewan)
Field instrumentation data from extensometers can be used to predict load on support and aid in calibrating computer models. As a stope is blasted, extensometers will react to blasting, changing stress conditions, changing rock mass conditions as well as changes to the opening geometry. This paper looks at trends between changing stope hanging wall geometry and the movement rate, as a tool to predict the deformation mechanism and the possible approach of instability. Instrumentation case histories are presented and interpreted.
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