Efficiency Of Integrated Seismic Methods Approach To Near-Surface Characterization

Abstract

<p>Surface seismic methods are among the most popular, widely accepted, geophysical methods for near-surface characterization. The most practical and effective way to perform in-situ measurements and data processing using different seismic methods as are seismic refraction, seismic reflection and MASW method in an integrated approach is presented in this paper. Each method has some advantages and limitations, but their application in an integrated approach provides higher accuracy in subsurface modeling. The same seismic equipment and, in most of the cases, the same acquisition parameters were used, enabling time and cost effective survey for subsurface characterization. The choice of these parameters was not random. Experimental research by use of the above-mentioned seismic methods was carried out in a long period in order to define the optimal parameters for successful application of an integrated technique in future research. During this survey, particular attention was paid to the influence of the acquisition parameters on the dispersion image resolution in the MASW surveys and extraction of an effective dispersion curve.</p><p>The results of the performed surveys at characteristic locations in R. North Macedonia are presented to show the efficiency of the combined methods approach.</p>

Combined Seismic Methods for 3d Modeling of Quarternary Deposits: Application to Skopje Sedimentary Basin

“…The most practical, cost and time effective way to perform in-situ measurement and processing by using different active and passive seismic methods as are seismic refraction, seismic reflection, MASW and HVSR method is presented in this paper through the results from the surveys performed at 2 characteristic locations. Each of these methods has some advantages and limitations, but their application in an integrated approach enables the results to be compared and complement each other, reducing thus the likelihood of making errors in interpretation and providing a higher accuracy subsurface modelling [8,9].…”

Geophysical Site Characterization for Strong Motion Stations. A Case Study in North Macedonia

“…At each selected location, time and cost-effective surveys were conducted by joint acquisition of seismic refraction, seismic reflection and Multichannel Analysis of Surface Waves (MASW) data. Microtremor measurements for HVSR (Horizontal to Vertical Spectral Ratio) analysis were also performed for definition of the predominant frequency and joint inversion of the dispersion and HVSR curve [3,4,5].…”