Simplified p-y curves under dynamic loading in dry sand

Hyunsung Lim, Sangseom Jeong

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)


The behavior of soil-pile systems subjected to dynamic loads in dry sand was investigated using experimental tests. The focus of this study was to quantify the simplified dynamic p-y curve for pseudo-static analysis from model tests under various loading frequencies. A framework for determining the p-y curve on the basis of 1 g shaking table tests was introduced. Based on the results of the model tests, the dynamic p-y curve is highly dependent on the relationships between the natural frequency of the soil-pile system and the loading frequency, the acceleration amplitude and the relative density of soil. The simplified dynamic p-y curve is a hyperbolic function. The initial slope and the ultimate soil resistance were proposed as functions of the properties of the pile and soil. The proposed p-y curves were determined to be more appropriate than the existing p-y curves for representing the soil-pile interaction for a single pile under dynamic loads in dry sand.

Original languageEnglish
Pages (from-to)101-111
Number of pages11
JournalSoil Dynamics and Earthquake Engineering
Publication statusPublished - 2018 Oct

Bibliographical note

Funding Information:
This research was supported by a grant (code18SCIP-B119960-03) from Construction Technology Research Program funded by KAIA (Korea Agency for infrastructure Technology Advancement). Also, this research was supported by the National Research Foundation of Korea (NRF) (No. 2011-0030040 ).

Publisher Copyright:
© 2018 Elsevier Ltd

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology
  • Soil Science


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