Prediction Equations for Estimating Shear-Wave Velocity from Combined Geotechnical and Geomorphic Indexes Based on Japanese Data Set
DC Field | Value | Language |
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dc.contributor.author | Kwak, Dong Youp | - |
dc.contributor.author | Brandenberg, Scott J. | - |
dc.contributor.author | Mikami, Atsushi | - |
dc.contributor.author | Stewart, Jonathan P. | - |
dc.date.accessioned | 2021-06-22T19:23:40Z | - |
dc.date.available | 2021-06-22T19:23:40Z | - |
dc.date.created | 2021-01-21 | - |
dc.date.issued | 2015-08 | - |
dc.identifier.issn | 0037-1106 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/17456 | - |
dc.description.abstract | We develop empirical predictive equations for shear-wave velocity (V-S) conditional on standard penetration test resistance (N-value) and other explanatory variables using data sets from Japan. The V-S and N data sets are from the Kyoshin network (K-NET), which include 16,845 collocated measurements of V-S and N at 1102 sites. We begin with baseline equations considering soil type and overburden pressure in addition to N. For coarse-grained soils, V-S is more sensitive to overburden pressure than to N, whereas for fine-grained soils, V-S is more sensitive to N. We find that residuals (difference between data and model) for a given borehole tend to be correlated (e.g., samples within a boring are consistently high or low); hence, we use mixed-effects regression to compute a quantity akin to an average borehole residual referred to as the between-boring residual. Sites associated with older (pre-Holocene, > 10,000 yrs) geology tend to have null to slightly positive between-boring residuals, whereas these residuals are negative for more recent materials. Accordingly, we provide adjustments to the baseline equations conditional on geologic condition. Between-boring residuals exhibit spatial correlations; however, due to lack of knowledge as to the cause of these correlations, we do not recommend such effects for inclusion in the model. When applied to predict the time-averaged V-S in the upper 30 m (V-S30) in the absence of direct measurement, the proposed equations provide significantly better accuracy than widely used local geomorphology-based proxies (0.26 versus 0.42 of standard deviation of the natural log of residuals). This suggests that penetration resistance data can improve predictions of V-S30 compared with geomorphology-based proxies alone, when site-specific V-S measurements are unavailable. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | Seismological Society of America | - |
dc.title | Prediction Equations for Estimating Shear-Wave Velocity from Combined Geotechnical and Geomorphic Indexes Based on Japanese Data Set | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kwak, Dong Youp | - |
dc.identifier.doi | 10.1785/0120140326 | - |
dc.identifier.scopusid | 2-s2.0-84938541004 | - |
dc.identifier.wosid | 000358773100007 | - |
dc.identifier.bibliographicCitation | Bulletin of the Seismological Society of America, v.105, no.4, pp.1919 - 1930 | - |
dc.relation.isPartOf | Bulletin of the Seismological Society of America | - |
dc.citation.title | Bulletin of the Seismological Society of America | - |
dc.citation.volume | 105 | - |
dc.citation.number | 4 | - |
dc.citation.startPage | 1919 | - |
dc.citation.endPage | 1930 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Geochemistry & Geophysics | - |
dc.relation.journalWebOfScienceCategory | Geochemistry & Geophysics | - |
dc.subject.keywordPlus | SEISMIC SITE CONDITIONS | - |
dc.subject.keywordPlus | PENETRATION RESISTANCE | - |
dc.subject.keywordPlus | CALIFORNIA | - |
dc.subject.keywordPlus | MAP | - |
dc.subject.keywordPlus | V-S30 | - |
dc.subject.keywordPlus | PROXY | - |
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