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http://dx.doi.org/10.7843/kgs.2006.22.4.21

Behavior of Soft Ground Improved by CSCP and SCP Using Centrifuge Modeling  

Ahn Kwang-Kuk (R&D Center, iCONTEC)
Publication Information
Journal of the Korean Geotechnical Society / v.22, no.4, 2006 , pp. 21-30 More about this Journal
Abstract
In this study, centrifuge model tests were performed to investigate the stress concentration ratio, bearing capacity and deformation modes of piles in clay ground improved by granular piles with two types of pile (CSCP, SCP) and various replacement ratios (0, 20, 40, 60%). According to the results of tests, the load ratio of ground improved by SCP and CSCP proportionally increased as replacement ratio increased. It shows that average normalized load of ground improved by CSCP is higher by about $8{\sim}21%$ than by SCP. As a result of rigid loading tests, it was evaluated that average stress concentration ratio of CSCP is higher than that of SCP. Only expansion failure occurred in CSCP, whereas SCP showed the expansion and shear failure simultaneously.
Keywords
CSCP (Crushed Stone Compaction Pile); Replacement ratio; Rigid; SCP (Sand Compaction Pile); Stress concentration ratio;
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