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CPT-based probabilistic and deterministic assessment of in situ seismic soil liquefaction potential

Journal of Geotechnical and Geoenvironmental Engineering

By:
, , , , ,
DOI: 10.1061/(ASCE)1090-0241(2006)132:8(1032)

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Abstract

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 stress, and adjustment to CPT tip resistance for the potential influence of "thin" liquefiable layers. The effects of soil type and soil character (i.e., "fines" adjustment) for the new correlations are based on a combination of CPT tip and sleeve resistance. To quantify probability for performancebased engineering applications, Bayesian "regression" methods were used, and the uncertainties of all variables comprising both the seismic demand and the liquefaction resistance were estimated and included in the analysis. The resulting correlations were developed using a Bayesian framework and are presented in both probabilistic and deterministic formats. The results are compared to previous probabilistic and deterministic correlations. ?? 2006 ASCE.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
CPT-based probabilistic and deterministic assessment of in situ seismic soil liquefaction potential
Series title:
Journal of Geotechnical and Geoenvironmental Engineering
DOI:
10.1061/(ASCE)1090-0241(2006)132:8(1032)
Volume
132
Issue:
8
Year Published:
2006
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Geotechnical and Geoenvironmental Engineering
First page:
1032
Last page:
1051
Number of Pages:
20