Results 131 to 140 of about 401 (183)
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The Leading Edge, 2016
A one-dimensional (1D) multichannel analysis of surface waves (MASW) seismic test is a quick and accurate sounding technique to collect VS at depth. Combining a series of MASW-derived VS soundings from specific depths is a convenient and cost-effective method of creating 3D maps.
Peter J. Hutchinson, Maggie H. Beird
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A one-dimensional (1D) multichannel analysis of surface waves (MASW) seismic test is a quick and accurate sounding technique to collect VS at depth. Combining a series of MASW-derived VS soundings from specific depths is a convenient and cost-effective method of creating 3D maps.
Peter J. Hutchinson, Maggie H. Beird
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MASW Imaging of an Abandoned Minnesota Mine
Symposium on the Application of Geophysics to Engineering and Environmental Problems 2006, 2006Several sinkholes have occurred on the site of a large, public historical center structure in northern Minnesota and ground subsidence has caused structural damage to some of the center's buildings. The structure was built over mine dump material, underlain by glacial drift and a Cretaceous iron formation.
Edward D. Billington +2 more
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Multi Geometry Approach for MASW Survey
Symposium on the Application of Geophysics to Engineering and Environmental Problems 2010, 2010The effect of source offset distance and the geophone array length on the dispersion curves are discussed in this paper. The source offset distance was changed systematically at sites with various subsurface conditions to investigate its effect on quality of data and the corresponding dispersion curves. Further, tests were carried out at same locations
Ali Nasseri-Moghaddam, Choon B. Park
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Application of MASW in road failure investigation
Arabian Journal of Geosciences, 2011Multichannel analysis of surface waves (MASW) survey was conducted to measure shear wave velocities in order to ascertain the likely causes of road failure along LASU-IBA expressway in Alimosho local government area, Lagos, Nigeria. MASW data were acquired along the express road.
Elijah Ayolabi, Bolaji Adegbola
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EFFECT OF SOURCES AND GEOPHONE COUPLING ON MASW SURVEYS
19th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems, 2006We have used the multi-channel active surface wave (MASW) seismic method to map stratigraphy and bedrock at sites with differing soil and rock characteristics. The purported advantages of using the shear wave velocity field calculated from surface waves to detect, delineate, and/or map anomalous subsurface materials include the insensitivity of MASW to
Mario Carnevale, Jutta Hager
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MASW Measurements for Soil Classification in Dinar, Turkey
Near Surface 2005 - 11th European Meeting of Environmental and Engineering Geophysics, 2005P019 MASW measurements for soil classification in Dinar Turkey Abstract 1 Elastic properties of near-surface materials and their effects on seismic wave propagation are very important in earthquake and civil engineering. Shear-wave velocity is an important parameter for evaluating the dynamic behaviour of soil in the shallow subsurface.
Hermann, László +5 more
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Some Practical Aspects Of Masw Analysis And Processing
21st EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems, 2008We use multi-channel analysis of surface waves (MASW) on seismic data in an attempt to test data acquisition parameters and compare those results to reaffirm existing general theoretical recommendations and rules of thumb. Of particular interest were optimum seismic receiver spread size, minimum and maximum receiver offsets and dominant geophone ...
Julian Ivanov +2 more
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Higher mode observation by the MASW method
SEG Technical Program Expanded Abstracts 1999, 1999A higher mode (the first overtone) of high frequency (5–30 Hz) surface waves was observed by using the multi-channel analysis of surface waves (MASW) method at three boreholes located in unconsolidated sediments in the Fraser River Delta, near Vancouver, British Columbia.
Choon B. Park +4 more
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MASW, The Wave of the Future Editorial
Journal of Environmental and Engineering Geophysics, 2005Abstract Revolutionary innovations in geophysical methods develop when instruments, techniques, or software evolve to make them possible. A few of these cause dramatic changes in the types of surveys and analysis done. Past examples were shallow reflection surveys and scanning resistivity pseudo-sections.
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Evaluation of shear geophones in MASW testing
International Journal of Geotechnical Engineering, 2017Dynamic properties such as wave velocities and damping ratios are required for dynamic analyses of sites.
Zahid Khan, Mohammad Yamin
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