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Description of  Model Tests and Numerical Simulations of Liquefaction and Lateral Spreading: LEAP-UCD-2017

This open access book presents work collected through the Liquefaction Experiments and Analysis Projects (LEAP) in 2017. It describes the use of improved quality control measures to minimize uncertainties and an extensive testing program designed and conducted to characterize the sensitivity and uncertainty for relatively simple lateral spreading centrifuge tests. Two subsequent LEAP projects followed, in 2018 and 2019, on effects of soil fabric and effects of biaxial ground motion on soil liquefaction. For each LEAP, fifteen numerical modeler teams (of academicians and practitioners in the USA, the Americas, Europe and Asia) participate in a series of calibration and prediction exercises to assess the performance and validity of the computational models and numerical simulation tools currently used in research and practice.