This dataset provides the data supporting the experimental study of granular flows moving on a 3D-printed 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_stress and seismic signals measured at the instrumented plateS3_data_example of velocity fields downstream and normal to the baseS4_data_propagation features of the flow characterized by basal stresses and seismic signalsS5_data_variations of the depth-averaged velocity of the granular flows and corresponding nondimensionalized downslope velocity profilesS6_data_profiles of the velocity of the granular flows normal to the base along with their depth-averaged velocities in the basal layersS7_data_ nondimensionalized shear rates of the granular flows for various particle diameters S8_data_depth-averaged shear rates and corresponding inertial numbers for granular flows with different particle sizesS9_data_the mean normal stress and shear stress and stress fluctuations normal and tangential to the baseS10_data_characteristics of seismic signals in terms of peak amplitude, mean envelope, seismic deviation factor, and the signal mean frequencyS11_data_effective basal friction coefficient and equivalent friction coefficient as functions of particle diameterS12_data_relationships between nondimensionalized normal stress fluctuations and nondimensionalized basal vertical velocity, inertial number, effective basal friction coefficient and equivalent friction coefficient of the flows.S13_data_seismic deviation factor as functions of nondimensionalized normal stress fluctuations, inertial number, effective basal friction coefficient and equivalent friction coefficientS14_data_Comparison of effective basal friction coefficient μ_b and that scaled by the nondimensionalized basal vertical velocity.

This dataset provides the data supporting the experimental study of granular flows moving on a 3D-printed 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_stress and seismic signals measured at the instrumented plateS3_data_example of velocity fields downstream and normal to the baseS4_data_propagation features of the flow characterized by basal stresses and seismic signalsS5_data_variations of the depth-averaged velocity of the granular flows and corresponding nondimensionalized downslope velocity profilesS6_data_profiles of the velocity of the granular flows normal to the base along with their depth-averaged velocities in the basal layersS7_data_ nondimensionalized shear rates of the granular flows for various particle diameters S8_data_depth-averaged shear rates and corresponding inertial numbers for granular flows with different particle sizesS9_data_the mean normal stress and shear stress and stress fluctuations normal and tangential to the baseS10_data_characteristics of seismic signals in terms of peak amplitude, mean envelope, seismic deviation factor, and the signal mean frequencyS11_data_effective basal friction coefficient and equivalent friction coefficient as functions of particle diameterS12_data_relationships between nondimensionalized normal stress fluctuations and nondimensionalized basal vertical velocity, inertial number, effective basal friction coefficient and equivalent friction coefficient of the flows.S13_data_seismic deviation factor as functions of nondimensionalized normal stress fluctuations, inertial number, effective basal friction coefficient and equivalent friction coefficientS14_data_Comparison of effective basal friction coefficient μ_b and that scaled by the nondimensionalized basal vertical velocity.

This dataset provides the data supporting the experimental study of granular flows moving on a 3D-printed 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_stress and seismic signals measured at the instrumented plateS3_data_example of velocity fields downstream and normal to the baseS4_data_propagation features of the flow characterized by basal stresses and seismic signalsS5_data_variations of the depth-averaged velocity of the granular flows and corresponding nondimensionalized downslope velocity profilesS6_data_profiles of the velocity of the granular flows normal to the base along with their depth-averaged velocities in the basal layersS7_data_ nondimensionalized shear rates of the granular flows for various particle diameters S8_data_depth-averaged shear rates and corresponding inertial numbers for granular flows with different particle sizesS9_data_the mean normal stress and shear stress and stress fluctuations normal and tangential to the baseS10_data_characteristics of seismic signals in terms of peak amplitude, mean envelope, seismic deviation factor, and the signal mean frequencyS11_data_effective basal friction coefficient and equivalent friction coefficient as functions of particle diameterS12_data_relationships between nondimensionalized normal stress fluctuations and nondimensionalized basal vertical velocity, inertial number, effective basal friction coefficient and equivalent friction coefficient of the flows.S13_data_seismic deviation factor as functions of nondimensionalized normal stress fluctuations, inertial number, effective basal friction coefficient and equivalent friction coefficient.

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.