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Modeling Dynamic Properties of Rock in South Carolina for Seismic Ground Response Analysis
Base case, small-strain shear-wave velocity (VS) profiles, shear-modulus reduction curves, and material damping ratio curves for rock in South Carolina are presented in this paper. The base case VS profiles are derived from 55 individual profiles compiled from 28 reports by other investigators. Of the 55 profiles, 18 are from predominantly non-foliated crystalline rock, 26 from foliated crystalline rock, and 11 from sedimentary basin rock. The time-averaged, shear-wave velocities in the top 30 m (VS30) for the base case profiles of these three rock groups are 1,484, 1,183, and 1,518 m/s, respectively. These VS30 values characterize our base case reference outcrop site conditions in the Blue Ridge and Piedmont provinces. The preliminary shear-modulus reduction and material damping ratio curves presented in this paper are derived by scaling published Tertiary soil curves to fit the data points for Tertiary rock at the Farley Nuclear Plant in Alabama. The results are being used to develop statewide seismic hazard maps for the reference outcrop site conditions for the South Carolina Department of Transportation.
Modeling Dynamic Properties of Rock in South Carolina for Seismic Ground Response Analysis
Base case, small-strain shear-wave velocity (VS) profiles, shear-modulus reduction curves, and material damping ratio curves for rock in South Carolina are presented in this paper. The base case VS profiles are derived from 55 individual profiles compiled from 28 reports by other investigators. Of the 55 profiles, 18 are from predominantly non-foliated crystalline rock, 26 from foliated crystalline rock, and 11 from sedimentary basin rock. The time-averaged, shear-wave velocities in the top 30 m (VS30) for the base case profiles of these three rock groups are 1,484, 1,183, and 1,518 m/s, respectively. These VS30 values characterize our base case reference outcrop site conditions in the Blue Ridge and Piedmont provinces. The preliminary shear-modulus reduction and material damping ratio curves presented in this paper are derived by scaling published Tertiary soil curves to fit the data points for Tertiary rock at the Farley Nuclear Plant in Alabama. The results are being used to develop statewide seismic hazard maps for the reference outcrop site conditions for the South Carolina Department of Transportation.
Modeling Dynamic Properties of Rock in South Carolina for Seismic Ground Response Analysis
Andrus, Ronald (author) / Amevorku, Camilius (author) / Rix, Glenn (author) / Carlson, Clinton (author) / Wong, Ivan (author) / Ravichandran, Nadarajah (author) / Jella, Vishnu Saketh (author) / Harman, Nicholas (author)
Geo-Congress 2022 ; 2022 ; Charlotte, North Carolina
Geo-Congress 2022 ; 685-694
2022-03-17
Conference paper
Electronic Resource
English
Modeling Dynamic Properties of Rock in South Carolina for Seismic Ground Response Analysis
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