SOIL LIQUEFACTION SUSCEPTIBILITY ASSESSMENT USING CPTU AND SPT TEST RESULTS

АУТОР(И) / AUTHOR(S): Zoran Berisavljević   

Download Full Pdf   

DOI: 10.46793/GEOAG25.336B

САЖЕТАК / ABSTRACT:

The paper presents the results of an assessment of the susceptibility of saturated sandy soil to liquefaction in the area of the National Football Stadium (NFS) in Belgrade. According to SRPS EN 1998-5, a detailed analysis of soil susceptibility to liquefaction is required for the shallow sandy layer at NFS location. Analyses are based on more than 250 SPT tests and 16 high-quality CPTu tests. For the relevant ground acceleration (a = 0.138) and an expected earthquake magnitude of 6.0, analyses were conducted both with and without the additional load from the embankment. In the case without the embankment, several CPTu and SPT tests indicated susceptibility of sandy soil to liquefaction, post-liquefaction settlements and lateral displacements, whereas with the additional load from the embankment, these phenomena were suppressed due to the influence of the overlying layer. The presence of the overburden has a positive effect on reducing the risk of liquefaction, but only after the dissipation of generated excess pore pressures in the surrounding clayey and silty soils.

КЉУЧНЕ РЕЧИ / KEYWORDS:

liquefaction, CPTu, SPT, post-liquefaction settlement, lateral displacement

ПРОЈЕКАТ / ACKNOWLEDGEMENT:

REFERENCES / ЛИТЕРАТУРА:       

• Idriss, I. M., & Boulanger, R. W. (2014). CPT and SPT based liquefaction triggering procedures. Center for Geotechnical Modeling, Department of Civil and Environmental Engineering, University of California, Davis
• Moss, R. S. E, Seed, R. B., Kayen, R. E., Stewart, J. P., Der Kiureghian A., Cetin, K. O. (2006). CPT-Based Probabilistic and Deterministic Assessment of In Situ Seismic Soil Liquefaction Potential. J. Geotech. Geoenviron. Eng., 132(8), 1032-1051
• Robertson, P. K., & Wride, C. E. (1998). Evaluating cyclic liquefaction potential using the cone penetration test. Canadian Geotechnical Journal, 35(3), 442–459. https://doi.org/10.1139/t98-017
• RocScience Inc. (2023). Settle3D Liquefaction Theory Manual
• Seed, H. B., & Idriss, I. M. (1982). Ground motions and soil liquefaction during earthquakes. Earthquake Engineering Research Institute, Oakland, California
• Tatsuoka, F., Shibuya, S., & Kuwano, R. (1990). Recent developments of laboratory tests and evaluation of deformation and strength properties of geomaterials in Japan. Soils and Foundations, 30(4), 115–128
• Yoshimine, M., H. Nishizaki, K. Amano, and Y. Hosono (2006). Flow deformation of liquefied sand underconstant shear load and its application to analysis of flow slide of infinite slope, Soil Dyn. and Earthquake Engrg., 26 (2-4), 253-264. https://doi:10.1016/j.soildyn.2005.02.016
• Youd, T. L., Idriss, I. M., Andrus, R. D., Arango, I., Castro, G., Christian, J. T., … & Stokoe, K. H. (2001). Liquefaction resistance of soils: Summary report from the 1996 NCEER and 1998 NCEER/NSF workshops on evaluation of liquefaction resistance of soils. Journal of Geotechnical and Geoenvironmental Engineering, 127(10), 817–833. https://doi.org/10.1061/(ASCE)1090-0241(2001)127:10(817).
• Zhang, G., Robertson, P. K., & Brachman, R. W. I. (2002). Estimating liquefaction-induced ground settlements from CPT data. Canadian Geotechnical Journal, 39(5), 1168–1180. https://doi.org/10.1139/t02-047
• Zhang, G., Robertson, P. K., & Brachman, R. W. I. (2004). Estimating liquefaction-induced lateral displacements using the Standard Penetration Test or Cone Penetration Test. Journal of Geotechnical and Geoenvironmental Engineering, 130(8), 861–871. https://doi.org/10.1061/(ASCE)1090-0241(2004)130:8(861)