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Behavior of Soft Ground Improved with Fully-Partly Penetrated Sand Compaction Piles  

Jeong, Geunchae (충북대학교 공과대학 토목공학과)
Heo, Yol (충북대학교 공과대학 토목공학과)
Bae, Wooseok (나노지오이엔씨 기술연구소)
Publication Information
Journal of the Korean GEO-environmental Society / v.13, no.9, 2012 , pp. 91-99 More about this Journal
Abstract
This study describes the investigation based on centrifuge model tests for the clay ground improved by sand compaction pile. In order to clarify the failure behavior of composite ground improved by partly and fully penetrated SCPs. And, in order to compare the effect of the penetration ratio and the replacement area ratio, nine of the centrifuge tests were carried out. From the test results, settlement reduce ratio in the fully penetrated SCPs ground is bigger than that in the partly penetrated SCPs ground. It is also evaluated that angle of the failure of composite ground improved by SCP are 26, 25, $34^{\circ}$ for As=10%, 22, $29^{\circ}$ for As=30%. And as a result of rigid loading tests, surface displacement decreases linearly with the partly penetration ratio increased.
Keywords
Centrifuge model tests; SCP(Sand Compaction Pile); Replacement area ratio; Partly penetration ratio;
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  • Reference
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