Difference and sensitivity analyses of the LEAP-2017 experiments

Nithyagopal Goswami, Mourad Zeghal, Bruce L. Kutter, Majid T. Manzari, Tarek Abdoun, Trevor Carey, Yun Min Chen, Sandra Escoffier, Stuart K. Haigh, Wen Yi Hung, Dong Soo Kim, Seong Nam Kim, Evangelia Korre, Ting Wei Liao, Kai Liu, Gopal S.P. Madabhushi, Srikanth S.C. Madabhushi, Mitsu Okamura, Asri Nurani Sjafruddin, Tetsuo TobitaKyohei Ueda, Ruben Vargas, Yan Guo Zhou

Research output: Chapter in Book/Report/Conference proceedingChapter


The experimental results of LEAP (Liquefaction Experiments and Analysis Projects) centrifuge test replicas of a saturated sloping deposit are used to assess the sensitivity of soil accelerations to variability in input motion and soil deposition. A difference metric is used to quantify the dissimilarities between recorded acceleration time histories. This metric is uniquely decomposed in terms of four difference component measures associated with phase, frequency shift, amplitude at 1 Hz, and amplitude of frequency components higher than 2 Hz (2 + Hz). The sensitivity of the deposit response accelerations to differences in input motion amplitude at 1 Hz and 2 + Hz and cone penetration resistance (used as a measure reflecting soil deposition and initial grain packing condition) was obtained using a Gaussian process-based kriging. These accelerations were found to be more sensitive to variations in cone penetration resistance values than to the amplitude of the input motion 1 Hz and 2 + Hz (frequency) components. The sensitivity functions associated with this resistance parameter were found to be substantially nonlinear.

Original languageEnglish (US)
Title of host publicationModel Tests and Numerical Simulations of Liquefaction and Lateral Spreading
Subtitle of host publicationLEAP-UCD-2017
PublisherSpringer International Publishing
Number of pages26
ISBN (Electronic)9783030228187
ISBN (Print)9783030228170
StatePublished - Nov 15 2019


  • Centrifuge test
  • Difference
  • LEAP
  • Liquefaction
  • Sensitivity
  • Slope

ASJC Scopus subject areas

  • General Earth and Planetary Sciences
  • General Physics and Astronomy
  • General Engineering
  • General Environmental Science
  • General Agricultural and Biological Sciences


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