Abstract
The main aim of this work is to study the effectiveness of densification as a mitigation technique against liquefaction, by means of cyclic simple shear tests carried out on specimens reconstituted at several relative densities. The adopted cyclic simple shear apparatus works with a sophisticated control system, which allows to carry out tests in k0 condition without using confining rings. Two different Italian sands were tested, both retrieved at Pieve di Cento (Emilia Romagna Region, affected by 2012 earthquake) at different depths. The results of cyclic simple shear tests show that densification increases the resistance to liquefaction. The expression of Booker et al. (1976) has been also used to simulate the trend of excess pore pressure ratio with the ratio between number of cycles and number of cycles at liquefaction of the experimental undrained cyclic tests.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Baziar MH, Shahnazari H, Sharafi H (2011) A laboratory study on the pore pressure generation model for Firouzkooh silty sands using hollow torsional test. Int J Civ Eng 9(2):126–134
Booker JR, Rahman MS, Seed HB (1976). GADFLEA—A computer program for the analysis of pore pressure generation and dissipation during cyclic or earthquake loading. Report No. EERC 76–24, Earthquake Engineering Research Center, University of California, Berkeley, CA
Chiaradonna A, Tropeano G, d’Onofrio A, Silvestri F (2018) Development of a simplified model for pore water pressure build-up induced by cyclic loading. Bull Earthq Eng, BEE 16(9):3627–3652, https://doi.org/10.1007/s10518-018-0354-4
Ishihara K (1985) Stability of Natural Deposits during Earthquakes. Proc. of the 11th Int. Conf. on Soil Mech. and Found. Eng. 1:321–376, San Francisco
Ishihara K (1996) Soil behavior in earthquake geotechnics. Oxford Engineering science series, 46
Mele L, Lirer S, Flora A (2019a) The effect of confinement in liquefaction tests carried out in a cyclic simple shear apparatus. In: 7th International Symposium on Deformation Characteristics of Geomaterials, Glasgow (Scotland), June 2019
Mele L, Lirer S, Flora A (2019b) The specific deviatoric energy to liquefaction in saturated cyclic triaxial tests. In: 7th International Conference on Earthquake Geotechnical Engineering, 7ICEGE, Rome (Italy), 17–20 June 2019
Seed HB, Martin PP, Lysmer J (1975) The generation and dissipation of pore water pressures during soil liquefaction. Report No. EERC 75–26, Earthquake Engineering Research Center, Univ. of California, Berkeley, CA
Vaid, Y.P., and Thomas, J. (1995). Liquefaction and post liquefaction behavior of sand. J Geotech Eng ASCE121 (2):163–173
Vaid YP, Sivatayalan S (1996) Static and cyclic liquefaction potential of Fraser Delta sand in simple shear and triaxial tests. Can Geotech J Eng 33: 281–289
Acknowledgements
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).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2020 Springer Nature Switzerland AG
About this paper
Cite this paper
Mele, L., Lirer, S., Flora, A. (2020). The Effect of Densification on Pieve di Cento Sands in Cyclic Simple Shear Tests. In: Calvetti, F., Cotecchia, F., Galli, A., Jommi, C. (eds) Geotechnical Research for Land Protection and Development. CNRIG 2019. Lecture Notes in Civil Engineering , vol 40. Springer, Cham. https://doi.org/10.1007/978-3-030-21359-6_47
Download citation
DOI: https://doi.org/10.1007/978-3-030-21359-6_47
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-21358-9
Online ISBN: 978-3-030-21359-6
eBook Packages: EngineeringEngineering (R0)