Use of Multichannel Analysis of Surface Waves in Near Surface Investigations for Housing Purposes

In the last few years, many soil investigations have been carried out to determine the response of the subsurface structure to dynamic strengths in areas where multi-storey buildings are thought to be constructed. The calculation of the shear wave velocity, the information about the dynamic elastic properties of the underground layers obtained from these velocities and soil response are fundamental in these studies. Although the shear wave velocity is found by using different methods, the difficulties which appear during these applications have prompted scientists to search for alternative methods. One of these methods is the multi-channel analysis surface wave. Surface wave measurements were taken to calculate shear wave velocities using the seismic refraction method along three profiles in Trabzon where a housing project has been planned. Since Sera Lake Landslide has already occurred near the study area, geophysical investigation is necessary in this potentially dangerous area. Dispersion curves were obtained from f-k transformation applied to shot gathers. 1-D Shear wave velocity was determined by performing the non-linear least square method on these curves. Interpretation of the resulting data will help the geophysicist to conclude whether the area is building land or not.