MONITORING OF DYNAMIC ENERGY RESISTANT ROCKBOLTS: LABORATORY AND FIELD RESULTS

World Mining Congress
Instrumentation has been developed that can monitor the strain applied to a D-Bolt up to 7.5% elongation. The technology far exceeds the limit for foil resistance strain gauges. In the laboratory the instrumentation has provided insight into the fundamental behaviour of the D-Bolt following yield. Currently the instrumentation is undergoing field trials at a number of Canadian Mines. Discussion on field results is provided with regards to significance, reliability and temperature effects.
Keywords: Bolts; Deformations; deformation; Strain; Sensors; Rock; Rocks; rebars; Rebar; Bars;
Full Access to Technical Paper
PDF version for $20.00
Other papers from World Mining Congress