Probabilistic Seismic Hazard Analysis for Strain Demand Distribution Due to Liquefaction induced Lateral Spreading

At the 27th Annual International Ocean and Polar Engineering Conference in San Francisco, California,
C-FER presented a paper developing a methodology to estimate pipeline strain demand due to soil liquefaction during an earthquake.  To request a free copy of this paper, complete the form at the bottom of the page.


A methodology to estimate the probability distributions of the strain demand caused by lateral spreading due to soil liquefaction is presented. Strain demand distributions indicate the variability in the strain demands due to uncertainties arising from the seismic sources, site topography, soil conditions, and modelling errors. The consideration of variability allows for the use of a strain demand with a specified probability of exceedance in a deterministic strain-based design. The availability of a probabilistic characterization of strain demand also allows the application of reliability-based design. The methodology provided in this paper is adapted from well-established probabilistic seismic hazard analyses. An example application is shown for a hypothetical pipeline located in the seismic region of the Cascadia Subduction Zone.


Koduru, S


27th Annual International Ocean and Polar Engineering Conference, San Francisco, California, USA, June 25–30, 2017



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