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Blasting Induced vibrations – Prevision and Depiction by Means of Surface Waves
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Near Surface 2009 - 15th EAGE European Meeting of Environmental and Engineering Geophysics, Sep 2009, cp-134-00010
- ISBN: 978-90-73781-72-6
Abstract
Surface waves play a fundamental role in the propagation of vibrations caused by quarry blasting since in the wave field generated from a shallow blasting source, most of the resulting vibratory energy is carried by Rayleigh waves that propagate close to the ground surface. Being the role of surface waves so pronounced both prevision methods and post blasting analyses should rely on a detailed study of this wave type in order to correctly understand the propagation phenomenon. In the present work a recently proposed relationship based on energy spreading in the form of Rayleigh wave is described evidencing its predictive capability in respect to data from a case history. The potentiality of surface waves parameters are moreover taken into account to better understand the influence of soil properties in respect to the measured vibrations and to underline the importance of dedicated soil testing in blasting sites.