.png){kind=icon}
.png){kind=icon}
Return
Multidimensional effective stress analysis of liquefiable sandy deposits: Performance of advanced constitutive models and implications for site response
.png){kind=icon}
PRE
AI
S
H
G
DOI：10.1007/s10518-026-02628-0.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
The paper examines practical considerations in the numerical simulation of liquefaction triggering at the Wildlife Liquefaction Array (WLA) site in Southern California using advanced sand-based constitutive models. Two models, the UBC3D-PLM and PM4Sand models, are used to reproduce site response under the 1987 Superstition Hills earthquake loading event. Both advanced constitutive models are systematically assessed for their effectiveness in ground response analysis, and their results are compared to emphasize the key aspects governing the free-field seismic response of sandy deposits. The models are calibrated using the available in-situ test-based liquefaction triggering criterion to predict site-specific cyclic resistance curves. Unidirectional simulations, which consider only the predominant horizontal component, and bidirectional simulations, which incorporate both perpendicular horizontal components, are used as inputs to the site response analysis. Variation in post-liquefaction triggering permeability is accounted for to enable quantification of liquefaction-induced surface manifestations using the ejecta potential index (EPI) within a two-dimensional finite element framework. Further, bidirectional simulations conducted at different azimuths provided insights into the potential critical shaking directions associated with fault rupture, thereby highlighting the influence of rupture orientation on site response.
Keywords:
Liquefaction triggering
Sand-based models
Effective stress analysis
Ejecta potential
Bidirectional shaking
Journal
IF:
4.1
Papers:
3.6K
Citations:
1.0W
Organization
Cited Papers