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Liquefaction Probability Curves for Three Surficial Sand Deposits near Charleston, South Carolina
Liquefaction probability curves for three Quaternary sand deposits near Charleston, South Carolina, are derived in this paper. The derivation is based on seismic cone penetration test profiles for 33 sites in the Holocene beach to barrier-island deposits (Qhs); 24 sites in the 33,000- to 85,000-year-old Silver Bluff terrace (Qsbs); and 91 sites in the 70,000- to 130,000-year-old Wando Formation (Qws). Liquefaction potential is expressed in terms of the liquefaction potential index (LPI). The effect of aging processes on liquefaction potential is considered through a correction factor based on the ratio of measured shear-wave velocity (VS) to estimated VS. The liquefaction probability curves are expressed as functions of peak ground acceleration, magnitude, and probability that LPI is greater than or equal to a threshold value for surface manifestation of liquefaction at level ground sites. The results indicate that Qhs exhibits the highest probability for a given level of ground shaking, followed by Qsbs and then Qws.
Liquefaction Probability Curves for Three Surficial Sand Deposits near Charleston, South Carolina
Liquefaction probability curves for three Quaternary sand deposits near Charleston, South Carolina, are derived in this paper. The derivation is based on seismic cone penetration test profiles for 33 sites in the Holocene beach to barrier-island deposits (Qhs); 24 sites in the 33,000- to 85,000-year-old Silver Bluff terrace (Qsbs); and 91 sites in the 70,000- to 130,000-year-old Wando Formation (Qws). Liquefaction potential is expressed in terms of the liquefaction potential index (LPI). The effect of aging processes on liquefaction potential is considered through a correction factor based on the ratio of measured shear-wave velocity (VS) to estimated VS. The liquefaction probability curves are expressed as functions of peak ground acceleration, magnitude, and probability that LPI is greater than or equal to a threshold value for surface manifestation of liquefaction at level ground sites. The results indicate that Qhs exhibits the highest probability for a given level of ground shaking, followed by Qsbs and then Qws.
Liquefaction Probability Curves for Three Surficial Sand Deposits near Charleston, South Carolina
Gathro, Joshua D. (author) / Bwambale, Barnabas (author) / Andrus, Ronald D. (author) / Heidari, Tahereh (author)
Geotechnical Earthquake Engineering and Soil Dynamics V ; 2018 ; Austin, Texas
2018-06-07
Conference paper
Electronic Resource
English
Liquefaction Probability Curves for Three Surficial Sand Deposits near Charleston, South Carolina
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