Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Geophysical Tools"”.
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Assessment of highway condition using combined geophysical surveys
… compare the effectiveness of two non-destructive geophysical tools, GPR and the PSPA, in assessing the condition of the pavements, composed of different construction materials. The GPR data were acquired using a 1.5 GHz antenna along five traverses spaced at two ft. intervals approximately 1000 …
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The use of geophysical methods for dam seepage investigations and dredged oyster deposit characterization
… up of three papers, which discuss the utility of geophysical tools in earthfill dam investigations and dredged oyster bed characterization.</p><p>In the first paper, an earthfill dam in Warren County, Missouri was effectively investigated for seepage through the dam and its outlet works using an …
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Development of Soil Survey Methods for Urban Areas
… samples. This limitation could be overcome by geophysical tools such as ground-penetrating radar (GPR) and electromagnetic induction (EMI), which can image large areas in a relatively short time without excavating the soil. These tools can map subsurface features and the degree of …
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Seismic and gravitational studies of melting in the mantle's thermal boundary layers
This thesis presents three studies which apply geophysical tools to the task of better understanding mantle melting phenomena at the upper and lower boundaries of the mantle. The first study uses seafloor bathymetry and small variations in the gravitational acceleration over the Hawaii-Emperor …
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Seismic and gravitational studies of melting in the mantle's thermal boundary layers
This thesis presents three studies which apply geophysical tools to the task of better understanding mantle melting phenomena at the upper and lower boundaries of the mantle. The first study uses seafloor bathymetry and small variations in the gravitational acceleration over the Hawaii-Emperor …
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Laboratory Ultrasonic Pulse Velocity Logging for Determination of Elastic Properties from Rock Core
… of geologic structures is to apply borehole geophysical tools ahead of the tunnel advance. Stiffness transitions can be identified using mechanical property analysis surveys that combine acoustic velocity and density data to calculate acoustic estimates of elastic moduli. However, logistical …