Phase 2 Initial Borehole Drilling and Testing, Ignace Area. WP4b Data Report – Geomechanical Testing

The solution to the thermal conductivity equation assumes the sensor is in an infinite medium, so the measurement and subsequent analysis of data must account for the limitation created by the outer boundaries of the material. [...] Recording of the acoustic emissions may not start at the same time as the recording of the strains; therefore, the two records (strains and AE) are time-matched at the peak stress in order to compare the time (and stress) of the crack initiation process. [...] Note that the sample depths in the graph legends refer to the depth of the original sample as collected (part of the id), not the depth of the sub-samples. [...] Note that the sample depths in the graph legends refer to the depth of the original sample as collected (part of the id), not the depth of the sub-samples. [...] The coefficient of linear thermal expansion was calculated from thermal strain vs temperature data points by two methods: 1) as the slope of the linear regression line through the data points and 2) fitting a second order polynomial to the same data and deriving the slope of the polynomial at the target temperatures.