DBPapers
DOI: 10.5593/sgem2012/s06.v2010

MASW TO MAP SHEAR-WAVE VELOCITY OF THE SOUTHERN KUMLUCA-ANTALYA

B. EKINCI, G. AKAN, M. ERKAN KARAMAN, A. ERGUN TURKER
Wednesday 1 August 2012 by Libadmin2012

References: 12th International Multidisciplinary Scientific GeoConference, www.sgem.org, SGEM2012 Conference Proceedings/ ISSN 1314-2704, June 17-23, 2012, Vol. 2, 609 - 614 pp

ABSTRACT

This study collected surface waves of alluvial deposits in Yeni and Karşıyaka
settlement, Southern parts of Kumluca by using the multichannel analysis of surface
waves method (MASW). MASW is an active-source technique requiring an impulsive
signal, such as from a sledgehammer to generate surface waves. Shear-wave velocity
structure is derived from the fundamental mode Rayleigh wave field generated by the
source. Surface-waves, however, have dispersion property which means that different
wavelength has different penetration depth and, therefore, propagates with different
velocity. Therefore, by analyzing the dispersion of surface waves, one can obtain nearsurface
velocity profile. The purpose of these surveys was to map shear-velocity 1-D Vs
maps. Alluvial deposits at this site consisted of a very heterogeneous mixture of gravel
in a sand-and-clay matrix. Results from each survey were represented by 1-D Vs maps,
showing soil characteristics.

Keywords: MASW, Shear wave, surface wave, mapping, alluvium.