Abstract
This data article includes raw data for time-lapse ultrasonic tomography measurements during a uniaxial compression test. Two sets of experimental data are included: first, the ultrasonic tomography (UT) observation (i.e., waveform) data at each 20 MPa axial stress step during the uniaxial loading test; and second, the stress-strain curve of the uniaxial compression test. A numerical model based on the combined finite-discrete element method (FDEM) was used to improve the understanding of the experimental results. The model file and the simulated acoustic emission (AE) data extracted from the simulation results are also included in this article. Data sets presented in this article help to improve understanding of the progressive rock failure process at microscopic and macroscopic scales.
Highlights
This data article includes raw data for time-lapse ultrasonic tomography measurements during a uniaxial compression test
Raw data Fangshan granite slab 110 mm wide, 220 mm long, and 30 mm thick 26 transducers surrounding the sample conducted a time-lapse ultrasonic tomography (UT) at each 20 MPa stress interval during a uniaxial compression test Laboratory test was conducted at the Key Laboratory of Seismic Observation and Geophysical Imaging, Institute of Geophysics, China Earthquake Administration, Beijing, China The numerical simulation was conducted at the Department of Civil Engineering, University of Toronto, Canada
The data described in this paper provides information on time-lapse UT measurements acquired during a uniaxial compression [1]
Summary
Rock engineering, Geophysics Rockburst, Ultrasonic tomography (UT), Acoustic emission (AE) Text file, MATLAB data (.mat). Raw data Fangshan granite slab 110 mm wide, 220 mm long, and 30 mm thick 26 transducers surrounding the sample conducted a time-lapse UT at each 20 MPa stress interval during a uniaxial compression test Laboratory test was conducted at the Key Laboratory of Seismic Observation and Geophysical Imaging, Institute of Geophysics, China Earthquake Administration, Beijing, China The numerical simulation was conducted at the Department of Civil Engineering, University of Toronto, Canada. The dataset presented here is the first time the time-lapse UT and FDEM numerical simulation are combined to investigate progressive rock failure. This data article allows the work in He et al [1] to be reproduced and compared with other laboratory experiments and numerical simulation data
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