Open-Source MASW Inversion Tool Aimed at Shear Wave Velocity Profiling for Soil Site Explorations

The shear wave velocity profile is of primary interest for geological characterization of soil sites and elucidation of near-surface structures. Multichannel Analysis of Surface Waves (MASW) is a seismic exploration method for determination of near-surface shear wave velocity profiles by analyzing R...

Full description

Saved in:
Bibliographic Details
Published in:Geosciences (Basel) 2020-08, Vol.10 (8), p.322
Main Authors: Olafsdottir, Elin Asta, Erlingsson, Sigurdur, Bessason, Bjarni
Format: Article
Language:English
Subjects:
Algorithms
Automation
Computer simulation
Data acquisition
Dispersion
Dispersion curve analysis
Earth science
Engineering
Geological engineering
Groundwater
Inverse problems
MASW
Monte Carlo-based inversion
Multichannel Analysis of Surface Waves
non-invasive testing
Open source software
Profiles
Rayleigh waves
S waves
Seismic exploration
Seismic velocities
Shear
Shear wave velocities
shear wave velocity
Software
Soil
Soil dispersion
Soil layers
soil site characterization
Soils
Statistical methods
Surface waves
Velocity
Velocity distribution
Velocity profiles
Wave propagation
Wave velocity
Wavelengths
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The shear wave velocity profile is of primary interest for geological characterization of soil sites and elucidation of near-surface structures. Multichannel Analysis of Surface Waves (MASW) is a seismic exploration method for determination of near-surface shear wave velocity profiles by analyzing Rayleigh wave propagation over a wide range of wavelengths. The inverse problem faced during the application of MASW involves finding one or more layered soil models whose theoretical dispersion curves match the observed dispersion characteristics. A set of open-source MATLAB-based tools for acquiring and analyzing MASW field data, MASWaves, has been under development in recent years. In this paper, a new tool, using an efficient Monte Carlo search technique, is introduced to conduct the inversion analysis in order to provide the shear wave velocity profile. The performance and applicability of the inversion scheme is demonstrated with synthetic datasets and field data acquired at a well-characterized geotechnical research site.
ISSN:2076-3263
2076-3263
DOI:10.3390/geosciences10080322