LEAP-ASIA-2019: Validation of centrifuge experiments and the generalized scaling law on liquefaction-induced lateral spreading

Tetsuo Tobita, Kyohei Ueda, Ruben R. Vargas, Koji Ichii, Mitsu Okamura, Asri Nurani Sjafruddin, Jiro Takemura, Lyu Hang, Ryosuke Uzuoka, Susumu Iai, Jad Boksmati, Alessandro Fusco, Samy Torres-Garcia, Stuart Haigh, Gopal Madabhushi, Majid Manzari, Sandra Escoffier, Zheng Li, Dong Soo Kim, Satish ManandharWen Yi Hung, Jun Xue Huang, Truong Nhat Phuong Pham, Mourad Zeghal, Tarek Abdoun, Evangelia Korre, Bruce L. Kutter, Trevor J. Carey, Nicholas Stone, Yan Guo Zhou, Kai Liu, Qiang Ma

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

A round-robin centrifuge model test for an identical saturated sloping deposit with various initial conditions was conducted in the framework of liquefaction experiments and analysis project (LEAP) with 10 international institutes. To pursue two main objectives: (1) the validation of the generalized scaling law (GSL); and, (2) the development of additional experimental data that fill the gaps in the previous LEAP, each institute was assigned two tests, identical in prototype scale: a model following the generalized scaling law and a model following conventional centrifuge scaling law. The test results show a significant match in the dynamic behavior of these models, which validates the applicability of the GSL under given conditions. However, in this study, a deviation is observed when the surface ground deformation becomes larger (i.e., 250 mm). The trend surface that correlates peak amplitude of input acceleration (PGAeff), the relative density of the ground (Dr_qc(2.0 m)), and surface lateral displacement (Ux) is updated and confirmed with new data sets.

Original languageEnglish
Article number107237
JournalSoil Dynamics and Earthquake Engineering
Volume157
DOIs
StatePublished - Jun 2022

Keywords

  • Centrifuge
  • Lateral spreading
  • Liquefaction
  • Round-robin
  • Scaling law

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