Integration of surface seismic waves, laboratory measurements, and downhole acoustic televiewer imaging, in geotechnical characterization: Ogden, KS

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Show simple item record Fader, Amelia Erin 2012-12-03T15:50:03Z 2012-12-03T15:50:03Z 2012-12-03
dc.description.abstract Geotechnical site characteristics are a function of the subsurface elastic moduli and the geologic structures. This study integrates borehole, surface and laboratory measurements for a geotechnical investigation that is focused on investigating shear-wave velocity (Vs) variation and its implication to geotechnical aspects of the Ogden test site in eastern Kansas. The area has a potential of seismicity due to the seismic zone associated with the Nemaha formation where earthquakes pose a moderate hazard. This study is in response to recent design standards for bridge structures require integrating comprehensive geotechnical site characterization. Furthermore, evaluation of dynamic soil properties is important for proper seismic response analysis and soil modeling programs. In this study, near surface geophysical site characterization in the form of 2D shear-wave velocity (Vs) structure that is compared with laboratory measurements of elastic moduli and earth properties at simulated in situ overburden pressure conditions and synergy with downhole Acoustic Televiewer time and amplitude logs, proved very robust “validated” workflow in site characterization for geotechnical purposes. An important component of a geotechnical site characterization is the evaluation of in-situ shear modulus, Poisson’s ratio and reliable and accurate elastic modulus ([lambda]) and shear modulus ([mu]) estimates are important in a good geotechnical site characterization. The geophysical site characterization, undertaken in this study, will complement and help in extrapolating drilling and core-based properties deduced by the geotechnical engineers interested at the test site. en_US
dc.description.sponsorship Kansas Department of Transportation en_US
dc.language.iso en_US en_US
dc.publisher Kansas State University en
dc.subject Surface wave en_US
dc.subject Acoustic televiewer en_US
dc.subject Ultrasonic laboratory measurments en_US
dc.subject Near surface site characterization en_US
dc.subject Multi channel analysis of surface waves MASW en_US
dc.subject MASW en_US
dc.subject Seismicity of Eastern Kansas en_US
dc.subject Geotechnical site characterization en_US
dc.title Integration of surface seismic waves, laboratory measurements, and downhole acoustic televiewer imaging, in geotechnical characterization: Ogden, KS en_US
dc.type Thesis en_US Master of Science en_US
dc.description.level Masters en_US
dc.description.department Department of Geology en_US
dc.description.advisor Abdelmoneam Raef en_US
dc.subject.umi Civil Engineering (0543) en_US
dc.subject.umi Geological engineering (0466) en_US
dc.subject.umi Geology (0372) en_US 2012 en_US December en_US

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