Dataset for the experimental study of the basal stresses and landquakes arisen by granular flows moving on a 3D printing bumpy substrate

This dataset provides the data supporting the experimental study of granular flows moving on a 3D printing bumpy substrate considering the response of basal stresses and seismic signatures.

S1_video clips_the side-view of the kinematic behaviors of the granular flows tracked by a high-speed camera.S2_data_example of velocity fields downstream and normal to the baseS3_data_propagated features of the flow characterized by basal stresses and landquake signalsS4_data_variations of the depth-averaged velocity of the granular flows and the corresponding nondimensionalized downslope velocity profilesS5_data_profiles of the velocity normal to the base of the granular flows with their depth-averaged velocities at the basal layersS6_data_nondimensionalized shear rates of the granular flows with varying particle diameters S7_data_depth-averaged shear rates and the corresponding inertial numbers for the granular flows with different particle sizesS8_data_the mean normal stress and shear stress  and stress fluctuations normal and tangential to the baseS9_data_characteristics of landquakes in terms of peak amplitude, mean envelope, seismic deviation factor, and the signal mean frequencyS10_data_effective basal friction coefficient and equivalent friction coefficient as functions of particle diameterS11_data_quantitative relationships between normal stress fluctuations and nondimensionalized basal vertical velocity, inertial number, effective basal friction coefficient and equivalent friction coefficient of the flow.S12_data_seismic deviation factor as functions of nondimensionalized normal stress fluctuations, inertial number, effective basal friction coefficient and equivalent friction coefficient.