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
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 blow-counts along with fines content are discussed. Additionally, the estimation of CSR input parameters are illustrated. Last but not least the uncertainty estimations of these input parameters are presented along with the probability and factory of safety for the assessment of liquefaction triggering.


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. (2004-01-01)
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 in...
Unified assessment of stress scaling factors for liquefaction engineering problems
Çetin, Kemal Önder (2014-01-01)
Most of the widely used seismic soil liquefaction triggering methods propose cyclic resistance ratio (CRR) values valid at a reference normal effective stress (σv,0) of one atmosphere, and a zero static shear stress (τst,0) state. Then a series of correction factors are applied to the CRR to account for the effects due to variations from the reference normal effective and static shear stresses (i.e., Kσ and Kα corrections). In the literature exists a number of stress correction factors used for seismic soil...
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...
Examination of differences between three SPT-based seismic soil liquefaction triggering relationships
Çetin, Kemal Önder; Kayen, Robert E.; Moss, Robb E. S.; Bilge, Habib Tolga; Ilgaç, Makbule (Elsevier BV, 2018-10-01)
The preceding companion paper presented the updating of the seismic soil liquefaction triggering relationship of Cetin et al. [1], and compared the resulting updated relationship with the earlier version. In this second paper, a detailed cross-comparison is made between three triggering relationships: (1) Seed et al. [2], as slightly updated by the NCEER Working Group (Youd et al. [3]), (2) Boulanger and Idriss [4], and (3) Cetin et al. [5]. Differences between these three triggering relationships, and the ...
The Effects of Implementing Different Ground-motionLogic-tree Frameworks on Seismic Risk Assessment
Ay, Bekir Özer (null; 2018-06-21)
This study investigates the link between probabilistic seismic hazard assessment and corresponding loss estimations by using different ground-motion logic-tree frameworks from reliable large scale seismic hazard projects as well as the logic-tree framework established in this study. The predictive models selected for these logic trees are expected to represent the center, body and range of ground-motion intensity measure estimates. Regarding with the hazard component of risk assessment, the ground motion in...
Citation Formats
K. Ö. Çetin, R. E. Kayen, R. E. S. Moss, H. T. Bilge, and M. Ilgaç, “The use of the SPT-based seismic soil liquefaction triggering evaluation methodology in engineering hazard assessments,” METHODSX, pp. 1556–1575, 2018, Accessed: 00, 2020. [Online]. Available: