Propagation characteristics of vibrations due to rock blasting in silt-rock strata

The geological effects of rock blasting in silt-rock strata are complex, and the vibrations caused by threaten safety inhabitable areas. Based on measured data for at site dynamic finite element simulations, propagation characteristics were studied. surface, vertical vibration velocities from surface to tunnel, attenuation along tunnel’s axis analyzed. results this study as followings: direction axis, peak particle (PPVs) decreases with increasing horizontal distance explosion source. magnitudes PPVs under five working conditions same when is right above center source 10 m away center. In source, silt stratum, increases gradually direction. change thickness artificial fill shield interval has little effect axis. provide a reference identifying around areas similar conditions.