Results 141 to 150 of about 409 (182)
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Linear Spread Configuration in the MASW Method
Near Surface 2010 - 16th EAGE European Meeting of Environmental and Engineering Geophysics, 2010In this paper, we evaluate the effect of geophone configuration on dispersion image for linear spreads in the MASW method. To reveal the spectral resolution of dispersion images, MASW records were collected using nine different types of linear spread configuration, then dispersion image for each record were calculated using phase velocity analysis ...
Akkaya, İsmail +2 more
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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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MASW applications for road construction and maintenance
The Leading Edge, 2018Abstract Road construction and maintenance are major parts of geotechnical engineering that deal with the stiffness of natural or manmade ground materials. At the earliest stage of new road construction, the ground along the planned route often needs to be characterized in terms of the overall stiffness of the overburden-bedrock ...
Choon Park +3 more
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MASW for geotechnical site investigation
The Leading Edge, 2013Multichannel anaylsis of surface waves (MASW) is a seismic surface-wave technique developed specifically for near-surface applications at depths usually shallower than a few tens of meters (Park et al., 1999). Since its introduction in the late 1990s, use of the technique has rapidly increased for two reasons: (1) it provides the shear-wave velocity ...
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The application of MASW in a geotechnical site investigation
9th EAGE/EEGS Meeting, 2003For engineers it is important to achieve material parameters, such as shear modulus and Young's modulus. With material parameters for soils and bedrock e.g. settlements, deformations and strength can be estimated. After often time consuming fieldwork traditional geotechnical survey methods usually provide material parameters valid only for a small ...
R. Wisén +3 more
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MASW surveys in landfill sites in Australia
The Leading Edge, 2013Multichannel analysis of surface waves (Park et al., 1999), commonly called MASW, is a seismic technique used to map the near-surface S-wave velocity structure. It has been applied to a range of geotechnical engineering problems, such as detection of cavities (Miller et al., 1999), the search for bedrock structure (Carnevale et al., 2005), examining ...
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Advances in Surface Wave Methods – Cascaded MASW-SASW
Near Surface 2005 - 11th European Meeting of Environmental and Engineering Geophysics, 2005The application of the MASW method in areas that show strong lateral variations in subsurface properties is limited. Traditional SASW may yield a better lateral resolution but the dispersion curves (and thus the subsurface models) obtained with the method may be poor.
Westerhoff, R.S. +2 more
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Ocean waves as a passive MASW source
Journal of Applied Geophysics, 2019Abstract Ocean waves have long been considered to be a source of seismic surface-wave energy for subsurface exploration. We test the utility of ocean-source seismic recording, the sensitivity to array orientation with respect to the shoreline direction, and the equivalence of passive- and active-source data acquired in a near-shore environment.
John H. McBride +5 more
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Evaluation of the MASW technique in unconsolidated sediments
SEG Technical Program Expanded Abstracts 1999, 1999Shear (S) wave velocities derived from the MASW (multi-channel analysis of surface wave) technique and borehole measurements at seven well locations in unconsolidated sediments of the Fraser River Delta are compared. The overall difference between these two sets of S-wave velocities is about 15%.
Jianghai Xia +4 more
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MASW Measurements for Seismic Site Effect Evaluation
4th Congress of the Balkan Geophysical Society, 2005O5 - 03 ENVIRONMENTAL ENGINEERING & ARCHAEO-GEOPHYSICS MASW MEASUREMENTS FOR SEISMIC SITE EFFECT EVALUATION 1 2 1 2 1 1 L. Hermann A.I. Kanli Zs. Pronay A. Pinar P. Tildy E. Toros 1 Eotvos Lorand Geophysical Institute Department of Engineering Geophysics Budapest Hungary 2 Istanbul University Engineering Faculty Department of Geophysical Engineering ...
L. Hermann +5 more
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