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Seismic site characterization of a few Indian coal ash deposits using multichannel analysis of surface waves
Abstract This study presents the outcome of an extensive field experiment undertaken to characterize coal ash deposits in terms of dynamic properties. In-situ shear wave velocity (V s) was measured over three hydraulically deposited coal ash deposits (two active ponds and one abandoned pond) situated in the central and southern parts of India. Multichannel analysis of surface waves was performed at twenty-one different locations on the ash deposits and the dyke top to measure the V s profiles along the depth (z). V s profiles measured for the abandoned coal ash deposits were greater than those of the active deposits. Moreover, the empirical association of V s profiles from active and abandoned coal ash deposits in India, based on the present study and reported literature, yields a piecewise linear relationship between shear wave velocity and depth.
Highlights Shear wave velocity (V s ) values from MASW for three coal ash ponds in India. Box and whisker plots for inter and intra-site variations in V s profiles. Comprehensive data on the variation of V s vs. z for all Indian coal ash deposits. Empirical association between in-situ average shear wave velocity, V s,a vs. z for Indian ashes.
Seismic site characterization of a few Indian coal ash deposits using multichannel analysis of surface waves
Abstract This study presents the outcome of an extensive field experiment undertaken to characterize coal ash deposits in terms of dynamic properties. In-situ shear wave velocity (V s) was measured over three hydraulically deposited coal ash deposits (two active ponds and one abandoned pond) situated in the central and southern parts of India. Multichannel analysis of surface waves was performed at twenty-one different locations on the ash deposits and the dyke top to measure the V s profiles along the depth (z). V s profiles measured for the abandoned coal ash deposits were greater than those of the active deposits. Moreover, the empirical association of V s profiles from active and abandoned coal ash deposits in India, based on the present study and reported literature, yields a piecewise linear relationship between shear wave velocity and depth.
Highlights Shear wave velocity (V s ) values from MASW for three coal ash ponds in India. Box and whisker plots for inter and intra-site variations in V s profiles. Comprehensive data on the variation of V s vs. z for all Indian coal ash deposits. Empirical association between in-situ average shear wave velocity, V s,a vs. z for Indian ashes.
Seismic site characterization of a few Indian coal ash deposits using multichannel analysis of surface waves
Parhi, Partha Sarathi (Autor:in) / Balunaini, Umashankar (Autor:in) / Sravanam, Sasanka Mouli (Autor:in)
04.02.2022
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch