Tool for analysis of MASW field data and evaluation of shear wave velocity profiles of soils

• Main Authors: Ólafsdóttir, Elín Ásta, Erlingsson, Sigurður, Bessason, Bjarni
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: NRC Research Press (a division of Canadian Science Publishing) 2017
• Subjects: Iceland
• Online Access: http://hdl.handle.net/1807/81060; http://www.nrcresearchpress.com/doi/abs/10.1139/cgj-2016-0302

Multichannel Analysis of Surface Waves (MASW) is a fast, low-cost and environmentally friendly technique to estimate shear wave velocity profiles of soil sites. This paper introduces a new open source software, MASWaves (Multichannel Analysis of Surface Waves for assessing shear wave velocity profiles of soils), for processing and analysing multichannel surface wave records using MASW. The software consists of two main parts; a dispersion analysis tool (MASWaves Dispersion) and an inversion analysis tool (MASWaves Inversion). The performance of the dispersion analysis tool is validated by comparison to results obtained by the Geopsy software package. Verification of the inversion analysis tool is carried out by comparison to results obtained by the software WinSASW and theoretical dispersion curves presented in the literature. Results of MASW field tests conducted at three sites in South Iceland are presented in order to demonstrate the performance and the robustness of the new software. The soils at the three test sites ranged from loose sand to cemented silty sand. Moreover, at one site, the results of existing Spectral Analysis of Surface Waves (SASW) measurements were compared to the results obtained by MASWaves. The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author.