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http://dx.doi.org/10.7843/kgs.2015.31.12.5

A Sensitivity Analysis for the Geotechnical Parameters Estimation of a Ground around a Granular Compaction Pile  

Han, Yushik (Geotechnical Engineering Research Institute, Korean Geotechnical Society)
Choi, Yongkyu (Dept. of Civil Eng., Kyungsung Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.31, no.12, 2015 , pp. 5-15 More about this Journal
Abstract
The GCP (Granular Compaction Pile) for the improvement objective of soft ground has been frequently studied. However, these studies were the results deduced on the basis of the numerical analysis and the laboratory model tests, and there was no study method to apply the effects of the bulging failure of a flexible pile. In this study, the sensitivity of the load-settlement curves of the uniform and the tapered GCP dependant on the geotechnical parameters estimated from N value of standard penetration test (SPT) was analyzed. It was estimated reasonably that, in the very soft clay soil (N=3 or less), elastic modulus was 700~2000 kPa and Poisson's ratio was 0.40~0.48.
Keywords
GCP (Granular Compaction Pile); Numerical analysis; Geotechnical parameters; Bulging failure; SPT (Standard Penetration Test); The sensitivity; Very soft clay;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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