A numerical model for the simulation of pile capacity degradation under cyclic axial loading

K. Abdel-Rahman, M. Achmus, Yu-Shu Kuo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

It is known from a number of field and model tests that piles under cyclic axial loading can exhibit a significant reduction of capacity compared to the static loading case. The main reason for this phenomenon is the compaction of the soil beneath the pile due to cyclic shearing. From the limited number of tests available, interaction diagrams have been developed, which give the number of load cycles leading to failure dependent on the mean load and the amplitude of the cyclic load portion, both related to the static capacity. However, such diagrams cannot account for soil conditions or pile geometry and pile stiffness. A generally valid calculation approach for the problem is not yet available. A numerical simulation scheme is presented, which allows the calculation of pile capacity reduction due to cyclic loading for a certain pile-soil system. The method is described in detail in the paper, and calculation results for piles embedded in sand are presented. Herewith, the quality of the method is assessed. Finally, recommendations regarding necessary further investigations and improvements of the method are given.

Original languageEnglish
Title of host publicationNumerical Methods in Geotechnical Engineering - Proceedings of the 8th European Conference on Numerical Methods in Geotechnical Engineering, NUMGE 2014
PublisherTaylor and Francis - Balkema
Pages1219-1224
Number of pages6
ISBN (Print)9781138026889
Publication statusPublished - 2014 Jan 1
Event8th European Conference on Numerical Methods in Geotechnical Engineering, NUMGE 2014 - Delft, Netherlands
Duration: 2014 Jun 182014 Jun 20

Publication series

NameNumerical Methods in Geotechnical Engineering - Proceedings of the 8th European Conference on Numerical Methods in Geotechnical Engineering, NUMGE 2014
Volume2

Other

Other8th European Conference on Numerical Methods in Geotechnical Engineering, NUMGE 2014
CountryNetherlands
CityDelft
Period14-06-1814-06-20

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology

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  • Cite this

    Abdel-Rahman, K., Achmus, M., & Kuo, Y-S. (2014). A numerical model for the simulation of pile capacity degradation under cyclic axial loading. In Numerical Methods in Geotechnical Engineering - Proceedings of the 8th European Conference on Numerical Methods in Geotechnical Engineering, NUMGE 2014 (pp. 1219-1224). (Numerical Methods in Geotechnical Engineering - Proceedings of the 8th European Conference on Numerical Methods in Geotechnical Engineering, NUMGE 2014; Vol. 2). Taylor and Francis - Balkema.