Experimental data for rock friction tests at varying confining pressure and load point velocity
Description
This folder contains experimental data of displacement-driven triaxial compression experiments on porous quartz-rich Bentheim sandstone samples containing a saw-cut fault under conditions of varying load point velocities (1-10 μm/s), confining pressures (35-75 MPa) and constant pore pressure (5 MPa). Mechanical deformation and hydraulic data were recorded continuously at a sampling rate of 10 Hz throughout the tests. For those tests deformed at a load point velocity of 1 μm/s and producing slow fault slip events, we only provide a dataset with a 10 Hz sampling rate. To better resolve fast slip events caused by high load point velocities, high-frequency (5120 Hz) mechanical and deformation data recordings were manually triggered shortly before, during, and after each fast slip event, which are also provided here. The format of the archived dataset here is '*.mat', which can only be loaded and read using MATLAB software. More details on the header of each column in the table and its unit can be found in the file 'README'.