The impact of blasting depth on the intensity of ground vibrations

The anisotropic properties of sedimentary, overburden rocks, vertical joint s and horizontal planes of discontinuity between layers affect the properti es of vibration medium. Measurements of vibration velocity for various blas ting depths between charges and endangered objects were performed. The grow th of the share of blasting depth, i.e. the perpendicular ro layers compone nt of distance between charge and object causes a more intensive attenuatio n of the vibration velocity. The peak particle velocity attenuation as a fu nction of blasting depth for most usable sealed distances was elaborated.