SPT-based probabilistic and deterministic assessment of seismic soil liquefaction potential

Çetin, Kemal Önder
Der Kiureghian, A.
Tokimatsu, K.
Harder, L.f.
Kayen, R.e.
Moss, R.e.s.
This paper presents new correlations for assessment of the likelihood of initiation (or “triggering”) of soil liquefaction. These new correlations eliminate several sources of bias intrinsic to previous, similar correlations, and provide greatly reduced overall uncertainty and variance. Key elements in the development of these new correlations are (1) accumulation of a significantly expanded database of field performance case histories; (2) use of improved knowledge and understanding of factors affecting interpretation of standard penetration test data; (3) incorporation of improved understanding of factors affecting site-specific earthquake ground motions (including directivity effects, site-specific response, etc.); (4) use of improved methods for assessment of in situ cyclic shear stress ratio; (5) screening of field data case histories on a quality/uncertainty basis; and (6) use of high-order probabilistic tools (Bayesian updating). The resulting relationships not only provide greatly reduced uncertainty, they also help to resolve a number of corollary issues that have long been difficult and controversial including: (1) magnitude-correlated duration weighting factors, (2) adjustments for fines content, and (3) corrections for overburden stress.
Journal Of Geotechnical And Geoenvironmental Engineering


SPT-based probabilistic assessment of seismic soil liquefaction triggering
Ilgaç, Makbule; Çetin, Kemal Önder; Kayen, Robert Edward; Department of Civil Engineering (2022-6-09)
The in-situ tests are proven to be a reliable approach to assessing the resistance against seismic soil liquefaction triggering. The scope of this research is to enrich previous SPT-based databases with new case histories from events that occurred in the last 25 years and employ an updated processing perspective with a new set of parameters and correction terms. The new SPT-based liquefaction triggering field case history database is based upon a large field case history from seismic events between 1964 and...
The use of the SPT-based seismic soil liquefaction triggering evaluation methodology in engineering hazard assessments
Çetin, Kemal Önder; Kayen, Robert E.; Moss, Robb E. S.; Bilge, Habib Tolga; Ilgaç, Makbule (2018-01-01)
Probabilistic and deterministic seismic soil liquefaction triggering methodologies are proposed in Cetin et al. [1]. This manuscript: i) presents the protocols, which need to be followed for the correct use of this methodology for forward engineering (design) assessments, ii) guides the engineers through the procedure, and iii) discusses the "tricks" alongside the protocol. An illustrative soil profile shaken by a scenario earthquake is presented, through which consistent estimations of representative SPT b...
CPT-based probabilistic assessment of seismic soil liquefaction triggering relationships
Can, Gizem; Çetin, Kemal Önder; Moss, Robb Eric Shedwick; Department of Civil Engineering (2022-6)
The research aims to define possibly the most accurate and unbiased probability-based seismically induced soil liquefaction triggering relationships for cohesionless soils. One key objective is to construct a well-studied database that processes liquefied and non-liquefied case histories from seismic events up to date consistently. For that purpose, Moss et al. (2003) database is revisited with improved parameter investigation, better case history processing, and advanced regression tools. Then the final da...
Reliability-Based Liquefaction Triggering Assessment Framework: A Unified Approach for SPT-CPT-Vs
Çetin, Kemal Önder; Ayhan, B. Umut; Moss, Robb; Kayen, Robert (2022-01-01)
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. ...
CPT-based probabilistic and deterministic assessment of in situ seismic soil liquefaction potential
Moss, R. E. S.; Seed, R. B.; Kayen, R. E.; Stewart, J. P.; Kiureghian, A. Der; Çetin, Kemal Önder (American Society of Civil Engineers (ASCE), 2006-08-01)
This paper presents a complete methodology for both probabilistic and deterministic assessment of seismic soil liquefaction triggering potential based on the cone penetration test (CPT). A comprehensive worldwide set of CPT-based liquefaction field case histories were compiled and back analyzed, and the data then used to develop probabilistic triggering correlations. Issues investigated in this study include improved normalization of CPT resistance measurements for the influence of effective overburden stre...
Citation Formats
K. Ö. Çetin, A. Der Kiureghian, K. Tokimatsu, L. f. Harder, R. e. Kayen, and R. e. s. Moss, “SPT-based probabilistic and deterministic assessment of seismic soil liquefaction potential,” Journal Of Geotechnical And Geoenvironmental Engineering, pp. 1314–1340, 2004, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/71010.