Twenty-Four Centrifuge Tests to Quantify Sensitivity of Lateral Spreading to Dr and PGA

Bruce L. Kutter, Trevor J. Carey, Bao Li Zheng, Andreas Gavras, Nicholas Stone, Mourad Zeghal, Tarek Abdoun, Evangelia Korre, Majid Manzari, Gopal S.P. Madabhushi, Stuart Haigh, Srikanth S.C. Madabhushi, Mitsu Okamura, Asri Nurani Sjafuddin, Sandra Escoffier, Dong Soo Kim, Seong Nam Kim, Jeong Gon Ha, Tetsuo Tobita, Hikaru YatsugiKyohei Ueda, Ruben R. Vargas, Wen Yi Hung, Ting Wei Liao, Yan Guo Zhou, Kai Liu

研究成果: 雜誌貢獻會議論文同行評審

15 引文 斯高帕斯(Scopus)

摘要

Twenty-four centrifuge model tests have been conducted at nine different geotechnical centrifuge facilities around the world as part of the international LEAP effort (liquefaction experiments and analysis projects). All of the centrifuge models represent a 4 m deep 5 degree sloping submerged sand deposit. The mean effective PGA of the input motion for all of the experiments was approximately 0.15 g and the mean relative density was approximately 65%, but the effective PGA's varied between about 0.07 g and 0.3 g, and the relative densities varied between about 40% and 75%. The test matrix was designed to enable experimental quantification of not only the median response but also the trend and sensitivity of the model response to density and shaking intensity. Quantification of the sensitivity of the response to initial conditions is a prerequisite for objective evaluation of the quality of the model test data. In other words, a discrepancy between two experiments should be evaluated after accounting for the uncertainty in the initial conditions and the sensitivity of the response to initial conditions. For the first time, a sufficient number of experiments has been performed on a similar problem to provide meaningful quantitative evaluation of the trend between PGA, density, and displacement. The sensitivity is quantified by the gradient of the trend and the uncertainty of the trend is quantified from the residuals between the fitting data and the trend.

原文???core.languages.en_GB???
頁(從 - 到)383-393
頁數11
期刊Geotechnical Special Publication
2018-June
發行號GSP 293
DOIs
出版狀態已出版 - 2018
事件5th Geotechnical Earthquake Engineering and Soil Dynamics Conference: Slope Stability and Landslides, Laboratory Testing, and In Situ Testing, GEESDV 2018 - Austin, United States
持續時間: 10 6月 201813 6月 2018

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