Effect of the adopted constitutive relationship on the modelling of post-liquefaction
reconsolidation
reconsolidation
File(s)
Published version
Author(s)
MA, Shengjie
Taborda, David MG
Kontoe, Stavroula
Type
Conference Paper
Abstract
Ground settlement is one of the main consequences of liquefaction and can develop during seismic shaking, as well as for a period after the end of the strong motion. In the post-shaking phase, once the seismic shaking ceases, water continues to flow upwards towards the surface, with ground settlement evolving until the excess pore water pressure is completely dissipated within the soil deposit. This process, known as post-liquefaction reconsolidation or simply reconsolidation, results in volumetric strains and settlements, which are challenging to model numerically using conventional constitutive frameworks for sands as loading under constant stress-ratio is often not captured accurately. In this study, a modified bounding surface plasticity model employing four
different elastic stiffness constitutive relationships is proposed to improve the accuracy of simulating post-liquefaction reconsolidation.
Fully coupled dynamic consolidation finite element analyses of level ground deposits subjected to seismic loading are conducted,
illustrating the impact of the new formulation in terms of excess pore pressure dissipation and ground settlement evolution.
different elastic stiffness constitutive relationships is proposed to improve the accuracy of simulating post-liquefaction reconsolidation.
Fully coupled dynamic consolidation finite element analyses of level ground deposits subjected to seismic loading are conducted,
illustrating the impact of the new formulation in terms of excess pore pressure dissipation and ground settlement evolution.
Date Issued
2026-06-14
Date Acceptance
2026-06-14
Citation
Proceedings of the 21st ICSMGE, 2026, pp.2583-2586
ISBN
978-3-9503898-4-5
Publisher
ÖGG, Austrian Society for Geomechanics
Start Page
2583
End Page
2586
Journal / Book Title
Proceedings of the 21st ICSMGE
Copyright Statement
© 2026 The Author(s).
Source
Proceedings of the 21st International Conference on Soil Mechanics and Geotechnical Engineering, Vienna
Publication Status
Published
Start Date
2026-06-14
Finish Date
2026-06-19
Coverage Spatial
Vienna, Austria
Date Publish Online
2026-06-14