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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/6615
Title: Effects of soil layering on the characteristics of basin-edge induced surface waves
Authors: Narayan, Jay Prakash
Kumar S.
Published in: Acta Geophysica
Abstract: This paper presents the effects of soil layering on the characteristics of basin-edge induced surface waves and associated strain and aggravation factor. The simulated results revealed surface wave generation near the basin-edge. The first mode of induced Love wave was obtained in models having increasing velocity with depth and a large impedance contrast between the soil layers. Amplitude amplification or de-amplification of body waves was proportional to the impedance contrast between the soil layers. The average aggravation factor was inversely proportional to the impedance contrast between the soil layers in case of increasingvelocity models and proportional in case of decreasing-velocity basinedge models. On the other hand, the maximum strain was inversely proportional to the impedance contrast between the soil layers in both cases. On the average, strain was greater in case of increasing-velocity models but the average aggravation factor was greater in case of decreasingvelocity models. © Versita Warsaw and Springer-Verlag Berlin Heidelberg 2009.
Citation: Acta Geophysica (2009), 57(2): 294-310
URI: https://doi.org/10.2478/s11600-008-0075-1
http://repository.iitr.ac.in/handle/123456789/6615
Issue Date: 2009
Keywords: Aggravation factor
Basin-edge effects
Soil layering
Spatial variability
Surface waves
ISSN: 18956572
Author Scopus IDs: 56240931000
57213855980
Author Affiliations: Narayan, J.P., Dept. of Earthquake Engineering, Indian Institute of Technology, Roorkee, India
Kumar, S., Dept. of Earthquake Engineering, Indian Institute of Technology, Roorkee, India
Funding Details: A c k n o w l e d g e m e n t . The first author is thankful to the Earthquake Risk Evaluation Centre, IMD, New Delhi, for the financial assistance through Grant Number ERC-244-EQD.
Corresponding Author: Narayan, J.P.; Dept. of Earthquake Engineering, Indian Institute of Technology, Roorkee, India; email: jaypnfeq@iitr.ernet.in
Appears in Collections:Journal Publications [EQ]

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