Reliability-Based Liquefaction Triggering Assessment Framework: A Unified Approach for SPT-CPT-Vs

ÇETİN K. Ö., Ayhan B. U., Moss R., Kayen R.

3rd European Conference on Earthquake Engineering and Seismology (ECEES), Bucharest, Romania, 4 - 09 September 2022, pp.109-123 identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1007/978-3-031-15104-0_7
  • City: Bucharest
  • Country: Romania
  • Page Numbers: pp.109-123
  • Keywords: Soil liquefaction, Seismic hazard, In-situ tests, SPT, CPT, V-s, DETERMINISTIC ASSESSMENT, RESISTANCE
  • Middle East Technical University Affiliated: Yes


For longer than four decades, the current practice for liquefaction triggering engineering assessments have been dominated by case history-based deterministic and probabilistic models. The predictive model proposals have been constituted based on different sets of case histories concerning in-situ test indices, namely standard penetration test (SPT) N value, cone penetration test (CPT) q, and shear-wave velocity (V-s), etc. The present study uses the databases of Cetin et al., Moss et al., and Kayen et al. together to develop a unified liquefaction triggering predictive model within a probabilistic framework. The scope concentrates on the illustrative introduction of the proposed unified reliability-based framework along with the comparative presentation of model predictions. The unified model enables a joint assessment of liquefaction performance predictions at sites, where different in-situ test indices are used individually or jointly to characterize the soil resistance against liquefaction.