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http://dx.doi.org/10.7843/kgs.2017.33.12.59

Evaluation of Dynamic p-y Curve Based on the Numerical Analysis  

Park, Jeong-Sik (Dept. of Civil and Environmental Engrg., Yonsei Univ.)
Jeong, Sang-Seom (Dept. of Civil and Environmental Engrg., Yonsei Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.33, no.12, 2017 , pp. 59-73 More about this Journal
Abstract
Numerical analysis using 3D finite element program (PLAXIS 3D) evaluated the interaction of soil - pile structure under dynamic surface loading. The dynamic p-y curve of the 1-g shaking table experiment by numerical analysis was calculated, and the parametric studies were presented by considering the pile-soil condition, the pile tip condition, and the loading condition. The frequency of 1.4 Hz is almost equal to the natural frequency of the pile - soil system. The p and y values of resonance phenomenon are significantly different from the results of other frequencies. The results can be summarized by a third order polynomial function representing the trend line in the p-y curve. In the case of a single pile, the shape of the dominant curve was found to be an ellipse by mathematical proof. The elliptic equation can be used for the dynamic design or analysis of soil-pile system.
Keywords
Numerical analysis; Dynamic p-y curve; Resonance phenomenon; 1-g shaking table model test;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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