Mandal, S.K and Singh, M.M. and Dasgupta, S.
(2010)
Theoretical evaluation of energy from blast-induced vibration waves measured on ground and structure.
Journal of Mines, Metals & Fuels, 58 (7).
pp. 180-193.
ISSN 0022-2755
Abstract
Legislation of limiting blast-inducted vibration level measure near foundation of structure have imposed difficulty in quarrying operation. Confrontation towards excavation work rises to its peak when drilling and blasting activity is carried out in close proximity to structures. Considering the sustaining capacity of structures towards high magnitude blast-induced ground vibration, the paper analyzes characteristics and quantum of energy transmitted to structure at the place of measurement. Theoretical model developed to evaluate wave characteristic and quantum of energy contained in blast wave signatures has been used for analysis. Comparative analysis of wave characteristics and quantum of energy transmitted at different distances/heights of concern is detailed in the paper. The paper firstly makes a comparative analysis of characteristics and energy contained in peak magnitude and wave signatures measured on ground at different distances of measurement and thereafter, compares wave signatures monitored near foundation of structure and first floor of a two storied structure, located within 50 m from blasting site.
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