Seismic site characterization of a few Indian coal ash deposits using multichannel analysis of surface waves

Parhi, Partha Sarathi and Balunaini, Umashankar and Sravanam, Sasanka Mouli (2022) Seismic site characterization of a few Indian coal ash deposits using multichannel analysis of surface waves. Soil Dynamics and Earthquake Engineering, 155. pp. 1-14. ISSN 0267-7261

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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 (Vs) 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 Vs profiles along the depth (z). Vs profiles measured for the abandoned coal ash deposits were greater than those of the active deposits. Moreover, the empirical association of Vs 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. © 2022

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IITH Creators:

IITH Creators	ORCiD
Balunaini, Umashankar	https://orcid.org/0000-0003-0813-7872

Item Type:

Article

Additional Information:

Authors gratefully acknowledge the support and permission provided by the officials of the National Thermal Power Corporation, New Delhi, NTPC Singrauli, Ramagundam, and Sipat. Without their support, in situ testing of ash ponds would not have been possible.

Uncontrolled Keywords:

Ash ponds; Coal ash; Multichannel analysis of surface waves (MASW); Shear wave velocity; Site characterization

Subjects:

Civil Engineering

Divisions:

Department of Civil Engineering

Depositing User:

. LibTrainee 2021

Date Deposited:

27 Jul 2022 05:50

Last Modified:

27 Jul 2022 05:50