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.
Bibliographical noteFunding 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 ).
© 2018 Elsevier Ltd
All Science Journal Classification (ASJC) codes
- Civil and Structural Engineering
- Geotechnical Engineering and Engineering Geology
- Soil Science