Abstract: This article provides a summary of recent work on geological properties utilizing Multichannel Surface Waves Analysis (MASW), one of the most practical and non-intrusive seismic exploration techniques available today. The estimation of the subsurface shear wave velocity profile over a vast area is less expensive than conventional borehole sounding tests. Shear wave velocity is an important metric that provides an immediate indication of the dynamic properties of soil. However, from the perspective of analyzing recorded raw data, generating dispersion images, and deriving inversion profiles, identifying the shear wave velocity profile is extremely complex and difficult. The main goal of the MASW technique is to obtain an appropriate dispersion image. The quality of the input sources and the geophone characteristics (such as frequency, spacing, and orientation arrangement) has a significant impact on the quality of the recorded data set which in turn gets reflected in resolution of the dispersion images. This study also discusses specific recommendations for data acquisition parameters based on a number of prior studies. The sub-surface profile depth range depends on the wavelengths generated by the input technique used, which afterwards categorizes as two techniques commonly used as Active MASW and Passive MASW. This paper provides a detailed review of the various wave field propagation and usefulness approaches frequently linked with MASW methodology. With the aid of various case studies, the uses and advantages of the related methodologies have been shown. Several studies demonstrate that combining active and passive approaches yields better results.

Keywords: Geophysics, MASW, Dispersion curve, Geological characterization, Seismic waves, Inversion Analysis

Pages: 148-170