BACK ANALYSIS OF OSTERBERG-CELL PILE LOAD TEST BY MEANS OF THREE-DIMENSIONAL GEOTECHNICAL MODELING

Authors

  • Szilárd Kanizsár Széchenyi István Egyetem, Győr

DOI:

https://doi.org/10.14311/CEJ.2021.03.0051

Keywords:

geotechnical modeling, Kiscell clay, Plaxis 3D, soil material model, pile load test

Abstract

In 3D geotechnical modelling it is essential for the realistic simulation of soil behavior that the parameters of the hardening soil with small strain constitutive model are specified appropriately. The possibility of deriving these parameters for very stiff cohesive soils similar to the so called Kiscell clay that has a significant role in deep construction projects in Budapest, from laboratory and field tests is rather limited. The results of the pile load test completed for the MOL Campus high-rise building project proved to be useful data source. The article presents the circumstances of the quoted Osterberg-cell pile load tests and the modelling of the pile performed by the above-mentioned soil model. The parameters specified on the basis of laboratory tests - and in absence of those based on literature - data can be fine-tuned by approaching the load test results.

References

Hudacsek P., Kanizsár Sz., Koch E., Szepesházi R., Szilvágyi Zs., Wolf Á., 2020. A MOL Campus alapozásának vizsgálata (Analysis of Foundation of MOL Campus), In: Proceedings of the Geotechnika 2020 Conference, Herceghalom, Hungary, 12–14 October 2020, pp. 62–74.

Tschuchnigg, F., 2012. 3D Finite Element Modeling of Deep Foundations Employing an Embedded Pile Formulation – Dissertation, Graz, pp. 162-168.

Józsa V., 2016. Estimation and Separation of Pre-consolidation Stress Using Triaxial- and Oedometer Test in Kiscelli Clay, Periodica Polytechnica Civil Engineering, Vol. 60, No. 2, pp. 297–304. (DOI: 10.3311/PPci.9068)

Görög P., 2007. Engineering geologic properties of the Oligocene Kiscell Clay, Central European Geology, Vol. 50, No. 4, pp. 313–329. (DOI:10.1556/CEuGeol.50.2007.4.2)

Schanz, T., Vermeer, P.A., Bonnier, P.G., 1999. The hardening-soil model: Formulation and verification. In R.B.J. Brinkgreve, Beyond 2000 in Computational Geotechnics, Balkema, Rotterdam, pp. 281-290. (DOI:10.1201/9781315138206-27)

R.B.J. Brinkgreve, W. Broere, 2004. Plaxis 3D Foundation Version 1., Part 3: Material Model Manual, Balkema, Rotterdam, pp. 1-1.

Hardin, B.O., Black W.L., 1969. Vibration Modulus of Normally Consolidated Clay, Journal of the Soil Mechanics and Foundation Division, ASCE, Vol. 95, No. 6, pp. 1531–1537.

Szepesházi R., Németh Gy., 2005. Az osztott cölöpös próbaterhelés feldolgozásának fejlesztése, Kutatási jelentés (Developing of the processing of split pile load test, Research Report), Széchenyi István Egyetem, Győr

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Published

2021-10-25

How to Cite

Kanizsár, S. (2021). BACK ANALYSIS OF OSTERBERG-CELL PILE LOAD TEST BY MEANS OF THREE-DIMENSIONAL GEOTECHNICAL MODELING. Stavební Obzor - Civil Engineering Journal, 30(3). https://doi.org/10.14311/CEJ.2021.03.0051

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