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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/6171
Title: Soil characteristics and site effect assessment in the city of Delhi (India) using H/V and f-k methods
Authors: Mundepi A.K.
Galiana-Merino J.J.
Kamal,
Lindholm C.
Published in: Soil Dynamics and Earthquake Engineering
Abstract: Local site conditions substantially affect the characteristics of seismic waves and its potential to cause earthquake damage. To accurately identify the variation of seismic hazard at different locations within the cities, measurements from a three-component station may be used for estimating the resonance frequencies and evaluate the expected level of damage at each site. This information can also be complemented with array measurements of ambient noise in order to estimate the Vs profiles and characterize the corresponding sediment layers at each site.In this work, ambient noise measurements were taken at 116 sites around the city of Delhi, India, and the fundamental resonance frequencies were estimated through the H/V technique. At the same time, array measurements were also taken at three different areas of the city, where it is expected that the mean soil thickness may differ. The f-k technique was applied for obtaining the dispersion curves and the neighborhood algorithm was used for estimating the S-wave velocity profiles at each area.Combining the information provided for both methods, we characterized the soil sediments of the city of Delhi, obtaining different zones of resonance frequency, soil thickness and mean S-wave velocity. Moreover, an estimation of the best suitable S-wave velocity profiles is proposed. © 2010 Elsevier Ltd.
Citation: Soil Dynamics and Earthquake Engineering (2010), 30(7): 591-599
URI: https://doi.org/10.1016/j.soildyn.2010.01.016
http://repository.iitr.ac.in/handle/123456789/6171
Issue Date: 2010
Keywords: FK technique
H/V method
Seismic microzonation
ISSN: 2677261
Author Scopus IDs: 6505821896
7801475177
55608940500
7102070745
Author Affiliations: Mundepi, A.K., Wadia Institute of Himalayan Geology, 33, General Mahadeo Singh Road, Dehradun, India
Galiana-Merino, J.J., Dpto. de Física, Ingeniería de Sistemas y Teoría de la Señal, Escuela Politécnica Superior, Universidad de Alicante, Spain
Kamal, Department of Earth Sciences, Indian Institute of Technology, Roorkee, India
Lindholm, C.
Funding Details: The authors (Kamal and AKM) thankfully acknowledge the Department of Science and Technology (DST), Ministry of Science and Technology, New Delhi, for financial support to carry out this work. The Director of WIHG, Dehradun is also acknowledged for providing the lab and other facilities, and assistance for preparing the manuscript. We are also very thankful to Marco Mucciarelli and the editor-in-chief, Dimitri E. Beskos, for their comments which helped us to clarify and improve this paper.
Corresponding Author: Galiana-Merino, J.J.; Dpto. de Física, Ingeniería de Sistemas y Teoría de la Señal, Escuela Politécnica Superior, Universidad de Alicante, Spain; email: juanjo@dfists.ua.es
Appears in Collections:Journal Publications [ES]

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