Geotechnical Earthquake Engineering and Soil Dynamics V
A Simplified Procedure for Evaluating Post-Seismic Settlements in Liquefiable Soils
Publication: Geotechnical Earthquake Engineering and Soil Dynamics V: Liquefaction Triggering, Consequences, and Mitigation (GSP 290)
ABSTRACT
The importance of predicting ground deformation in loose, saturated granular soils has been widely recognized for a reliable evaluation of liquefaction damage. A procedure is proposed in this paper for the evaluation of post-cyclic consolidation settlements, as a result of volumetric strains induced by the dissipation of excess pore pressure. A stress-based model is first adopted for generating the excess pore water pressure in 1D free-field conditions, allowing for an effective stress analysis according to a loosely coupled approach. Then, the post-cyclic settlement is simply calculated integrating the vertical strains. To this aim, by considering a well-documented case history in which an extremely small settlement was observed upon seismic excitation, soil stiffness is estimated on the basis of either CPT data or shear stiffness decay curve, to show the effect of modelling hypothesis on the results. Both approaches result into a value of the settlement close to the observed one and much lower than that calculated using a well-established empirical procedure.
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ACKNOWLEDGMENTS
This work was carried out as part of the European project Horizon 2020 – Assessment and Mitigation of liquefaction potential across Europe: A holistic approach to protect structures infrastructures for improved resilience to earthquake – induced liquefaction disasters – “LIQUEFACT” (grant agreement No 700748).
REFERENCES
Bray, J. D., and Macedo, J. (2017). “Simplified procedure for estimating liquefaction-induced building settlement.” Proc. the 19thInt. Conf. on Soil Mech. and Geot. Eng., 102-118.
Chiaradonna, A., Flora, A., d’Onofrio, A., Bilotta, E. and Silvestri F. (2018c). “A simplified procedure for the evaluation of liquefaction-induced settlement.” Can. Geotech. J. (submitted).
Chiaradonna, A., Tropeano, G., d’Onofrio, A., and Silvestri F. (2018b). “Interpreting the deformation phenomena of a levee damaged during the 2012 Emilia earthquake.” Special Issue on Soil Dyn. Found. Eng. (submitted).
Chiaradonna, A., Tropeano, G., d’Onofrio, A., Silvestri, F. (2018a). “Development of a simplified model for pore water pressure build-up induced by cyclic loading.” Bull. Earth. Eng. (submitted).
Matasovic, N., and Vucetic, M. (1993). “Cyclic characterization of liquefiable sands.” J. Geotech. Eng., ASCE, 119(11):1805-1822.
Robertson, P.K., and Cabal (Robertson), K.L., (2010). Guide to Cone Penetration Testing for Geotechnical Engineering. Gregg Drilling & Testing, Inc.
Robertson, P. K., and Wride, C.E. (1998). “Evaluating cyclic liquefaction potential using the cone penetration test.” Can. Geotech. J., 35, 442–459.
Tonni, L., Gottardi, G., Amoroso, S., Bardotti, R., Bonzi, L., Chiaradonna, A. et al. (2015). “Interpreting the deformation phenomena triggered by the 2012 Emilia seismic sequence on the Canale Diversivo di Burana banks.” Ital. Geotech. J., 2: 28–58 (in Italian).
Tropeano, G., Chiaradonna, A., d’Onofrio, A. and Silvestri F. (2016). “An innovative computer code for 1D seismic response analysis including shear strength of soils.” Géotechnique, 66(2): 95–105.
Ishihara, K., Yoshimine, M. (1992) “Evaluation of settlements in sand deposits following liquefaction during earthquakes.” J. Soils Found. 32(1):173–188.
Zhang, G., Robertson, P.K. and Brachman, R.W.I. (2002). “Estimating liquefaction-induced ground settlements from CPT for level ground.” Can. Geotech. J. 39: 1168–1180.
Information & Authors
Information
Published In
Geotechnical Earthquake Engineering and Soil Dynamics V: Liquefaction Triggering, Consequences, and Mitigation (GSP 290)
Pages: 51 - 59
Editors: Scott J. Brandenberg, Ph.D., University of California, Los Angeles, and Majid T. Manzari, Ph.D., George Washington University
ISBN (Online): 978-0-7844-8145-5
Copyright
© 2018 American Society of Civil Engineers.
History
Published online: Jun 7, 2018
ASCE Technical Topics:
- Clays
- Continuum mechanics
- Deformation (mechanics)
- Dynamics (solid mechanics)
- Engineering mechanics
- Geomechanics
- Geotechnical engineering
- Granular soils
- Material mechanics
- Materials engineering
- Pressure (type)
- Saturated soils
- Soft soils
- Soil deformation
- Soil dynamics
- Soil liquefaction
- Soil mechanics
- Soil properties
- Soil settlement
- Soils (by type)
- Solid mechanics
- Strain
- Stress (by type)
- Stress analysis
- Structural analysis
- Structural engineering
- Structural mechanics
- Water pressure
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