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A semi-empirical model for the estimation of maximum horizontal displacement due to liquefaction-induced lateral spreading

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Abstract

During the 1906 San Francisco Earthquake, liquefaction-induced lateral spreading and resultant ground displacements damaged bridges, buried utilities, and lifelines, conventional structures, and other developed works. This paper presents an improved engineering tool for the prediction of maximum displacement due to liquefaction-induced lateral spreading. A semi-empirical approach is employed, combining mechanistic understanding and data from laboratory testing with data and lessons from full-scale earthquake field case histories. The principle of strain potential index, based primary on correlation of cyclic simple shear laboratory testing results with in-situ Standard Penetration Test (SPT) results, is used as an index to characterized the deformation potential of soils after they liquefy. A Bayesian probabilistic approach is adopted for development of the final predictive model, in order to take fullest advantage of the data available and to deal with the inherent uncertainties intrinstiic to the back-analyses of field case histories. A case history from the 1906 San Francisco Earthquake is utilized to demonstrate the ability of the resultant semi-empirical model to estimate maximum horizontal displacement due to liquefaction-induced lateral spreading.

Additional publication details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
A semi-empirical model for the estimation of maximum horizontal displacement due to liquefaction-induced lateral spreading
Year Published:
2006
Language:
English
Publisher:
Earthquake Engineering Research Institute
Publisher location:
Oakland, CA
Contributing office(s):
Coastal and Marine Geology Program
Description:
1323; 10 p.
Larger Work Type:
Book
Larger Work Subtype:
Conference publication
Larger Work Title:
Proceedings of the 8th U.S. National Conference on Earthquake Engineering
Conference Title:
8th U.S. National Conference of Earthquake Engineering
Conference Location:
San Francisco, CA
Conference Date:
2006-04-18T00:00:00