Results 201 to 210 of about 25,540 (244)
Some of the next articles are maybe not open access.
Multichannel analysis of surface waves based on short array stacked Correlation gather
Soil Dynamics and Earthquake Engineering, 2021Abstract Multichannel analysis of surface waves (MASW) has played an important role in shear wave velocity survey of subsurface. Modern urban engineering construction needs more and more high-resolution detection of shallow underground objects. However, the traditional MASW method will reduce the detection depth when the receiving array length is ...
Hongxing Li +6 more
openaire +3 more sources
Application of multichannel analysis of passive surface waves method for fault investigation
Journal of Applied Geophysics, 2021Abstract Research on faulting is of fundamental significance to the exploration of geothermal resources since faulting is an important factor in the formation of traps for water accumulation. The high-frequency passive surface waves methods using ambient noise data become more popular because of its low-cost, environment-friendly, non ...
Ling Ning +5 more
openaire +3 more sources
Multichannel analysis of surface waves (MASW)—active and passive methods
The Leading Edge, 2007The conventional seismic approaches for near-surface investigation have usually been either high-resolution reflection or refraction surveys that deal with a depth range of a few tens to hundreds meters. Seismic signals from these surveys consist of wavelets with frequencies higher than 50 Hz.
Choon B. Park +3 more
openaire +3 more sources
Journal of Applied Geophysics, 2014
Abstract This overview article gives a picture of multichannel analysis of high-frequency surface (Rayleigh and Love) waves developed mainly by research scientists at the Kansas Geological Survey, the University of Kansas and China University of Geosciences (Wuhan) during the last eighteen years by discussing dispersion imaging techniques, inversion ...
Jianghai Xia
openaire +3 more sources
Abstract This overview article gives a picture of multichannel analysis of high-frequency surface (Rayleigh and Love) waves developed mainly by research scientists at the Kansas Geological Survey, the University of Kansas and China University of Geosciences (Wuhan) during the last eighteen years by discussing dispersion imaging techniques, inversion ...
Jianghai Xia
openaire +3 more sources
Surveys in Geophysics, 2012
As theory dictates, for a series of horizontal layers, a pure, plane, horizontally polarized shear (SH) wave refracts and reflects only SH waves and does not undergo wave-type conversion as do incident P or Sv waves. This is one reason the shallow SH-wave refraction method is popular.
Jianghai Xia +5 more
openaire +3 more sources
As theory dictates, for a series of horizontal layers, a pure, plane, horizontally polarized shear (SH) wave refracts and reflects only SH waves and does not undergo wave-type conversion as do incident P or Sv waves. This is one reason the shallow SH-wave refraction method is popular.
Jianghai Xia +5 more
openaire +3 more sources
UAV-Enabled Subsurface Characterization Using Multichannel Analysis of Surface Waves
Journal of Geotechnical and Geoenvironmental Engineering, 2021AbstractThe implementation of unmanned aerial vehicles (UAVs) in civil engineering has primarily focused on remote sensing using optical cameras, light detection and ranging (LiDAR), and communicat...
William W. Greenwood +2 more
openaire +1 more source
Interferometric Multichannel Analysis of Surface Waves (IMASW)
Bulletin of the Seismological Society of America, 2011Abstract Refraction microtremor (ReMi) and multichannel analysis of surface waves (MASW) are effective approaches to estimate shallow shear-wave velocity ( V S ) structure often needed to estimate ground motions using recent ground motion prediction relations.
D. R. H. O'Connell, J. P. Turner
openaire +1 more source
Multichannel analysis of surface waves (MASW) for offshore geotechnical investigations
Engineering Geology, 2020Abstract Multichannel analysis of surface wave (MASW) surveys are commonly used onshore to produce shear wave velocity (Vs) profiles. This paper describes its use in offshore geotechnical investigations (underwater MASW - UMASW) where the focus was on the upper 15 m of the sediment profile to aid the design of structures such as marine pipelines ...
Michael Long +3 more
openaire +1 more source
Multichannel analysis of surface waves to map bedrock
The Leading Edge, 1999High-velocity gradients within the shear-wave velocity field consistent with drill-confirmed bedrock are considered diagnostic of the bedrock surface and were used to map the top of bedrock on all four lines collected at this site. Localized lateral decreases in the shear-wave velocity below the bedrock surface were classified as fracture zones or ...
Richard D. Miller +3 more
openaire +1 more source
Roadside Passive Multichannel Analysis of Surface Waves (MASW)
Journal of Environmental and Engineering Geophysics, 2008A 2-D receiver array, such as a cross or circular type, should be used in a passive surface wave survey to provide the most accurate results. It is often not possible to secure such a spacious area, however, especially if the survey has to take place in an urban area.
Choon B. Park, Richard D. Miller
openaire +1 more source