Effects of soil layering on the characteristics of basin-edge induced surface waves

Czasopismo : Acta Geophysica
Tytuł artykułu : Effects of soil layering on the characteristics of basin-edge induced surface waves

Autorzy :
Sobotka, J.
University of Wrocław, Institute of Geological Sciences, Department of Structural Geology, Wrocław, Poland, jerzysob@ing.uni.wroc.pl,
Sedighi, M.
K.N. Toosi University of Technology, Faculty of Geodesy and Geomatics Engineering, Tehran, Iran, sedighi@ncc.org.ir,
Rezaei, K.
LMU University, Munich, Germany, khalil.rezaei@yahoo.com,
Narayan, J.
Dept. of Earthquake Engineering, Indian Institute of Technology, Roorkee, India, jaypnfeq@iitr.ernet.in,
Abstrakty : 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.

Słowa kluczowe : aggravation factor, basin-edge effects, soil layering, spatial variability, surface waves,
Wydawnictwo : Instytut Geofizyki PAN
Rocznik : 2009
Numer : Vol. 57, no. 2
Strony : 294 – 310
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DOI :
Cytuj : Sobotka, J. ,Sedighi, M. ,Rezaei, K. ,Narayan, J. , Effects of soil layering on the characteristics of basin-edge induced surface waves. Acta Geophysica Vol. 57, no. 2/2009
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