Seismic Hazard Evaluation Using Apparent Stress Ratio for Mining-Induced Seismic Events

Links

URL: https://laurentian.scholaris.ca/handle/10219/2488

Abstract and keywords

This thesis investigates precursory trends in seismic data prior to the occurrence of large and potentially damaging seismic events at Agnico Eagle’s LaRonde mine. A variety of sample populations are selected to represent varying degrees of seismic hazard within a large area of interest at LaRonde. The main factor considered for hazard assessment is the local stress conditions within the rock mass, inferred from the apparent stress of seismic events.

An alternative means of analyzing apparent stress measurements using a relative ratio, referred to as Apparent Stress Ratio (ASR), is presented. The use of a ratio eliminates the need for thresholds values to define high and abnormal apparent stress. ASR values are analyzed in reference to varying time frames, allowing for changes in stress conditions over time to be considered. Hazard maps created using ASR and peak ASR values correspond well to areas of elevated seismic hazard previously identified at LaRonde. For an area of interest at LaRonde, ASR as an alarm tool possesses a success rate of 68% with a false alarm ratio of 2:1.

Keywords: Seismicity; Mining; Hazard; Apparent Stress; LaRonde

Cited Works (2)

Year	Entry
2008	Hudyma MR. Analysis and Interpretation of Clusters of Seismic Events in Mines [PhD thesis]. Perth, Australia: University of Western Australia; November 2008.
2012	Young DP. Energy Variations in Mining-Induced Seismic Events Using Apparent Stress [Master's thesis]. Sudbury, ON: Laurentian University; 2012.

Cited By (4)

Year	Entry
2018	Brown LG. Quantification of Seismic Responses to Mining Using Novel Seismic Response Parameters [PhD thesis]. Sudbury, ON: Laurentian University; 2018.
2018	Carusone OTS. Interpretation of Rock Mass Yield Using Apparent Stress of Microseismic Events: Examples from Glencore’s Nickel Rim South Mine, Sudbury, Ontario [Master's thesis]. Sudbury, ON: Laurentian University; 2018.
2018	Reimer E. Seismic Hazard Analysis Using Mapping Techniques for Underground, Narrow-Vein Metal Mines [Master's thesis]. Sudbury, ON: Laurentian University; 2018.
2022	Stratton R. Evolution of Seismic Response and Seismic Hazard At Goldex Mine’s D1-Zone [Master's thesis]. Sudbury, ON: Laurentian University; 2022.