Application of Multichannel Analysis of Surface Wave (Masw) in Geotechnics

MASW (Multichannel Analysis of Surface Waves) is a non-invasive seismic method used for geotechnical site investigations, developed in 1999 in the USA. Its primary purpose is to assess soil stiffness by measuring the shear wave velocity (Vs) beneath the surface, which is crucial for geotechnical analysis. The method enables detection of faults, cavities, potential liquefaction zones, and lithological changes with depth. MASW can identify velocity inversions in layers where wave velocity decreases with depth. Due to lower testing costs, the method is cost-effective and suitable for use in urban environments with high noise levels. Based on the results, Vs,30 is determined along with soil classification according to the EC-8 standard. Practical application of MASW is demonstrated at pier locations of the planned viaduct along the E-763 highway section.