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oa Phased source arrays
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, EAGE/DGG Workshop on Mining and Tunneling Geophysics, Feb 2018, Volume 2018, p.1 - 2
Abstract
Summary
Quarries and open pit mines face challenges in areas with surrounding infrastructure. Unavoidable side effects of rock blasting like ground vibrations are subject to many legal restrictions. Mines use vastly different methods to predict vibrations, which are either based on trial-and-error, or on very simplified models which neglects complex subsurface properties and topography. The phased source array approach utilizes angle dependant wave interferometry to reduce blasting vibrations at certain sensitive targets. In order to compute vibration models a subsurface velocity model, obtained with a seismic tomography experiment, is needed.
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