• Title/Summary/Keyword: FEM analyes

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A Study on the Behavior of Sand Compaction Piles in Soft Ground (연약지반에 적용된 모래다짐말뚝의 거동특성에 관한 수치해석 연구)

  • Lee, Jungsang;Chung, sungrae;Chun, Byungsik
    • Journal of the Korean GEO-environmental Society
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    • v.12 no.8
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    • pp.33-38
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    • 2011
  • Presently, domestic SCP method with low replacement ratio is required as alternative in order to overcome the profitability of the sand resource because of the deficiency phenomenon of the sand resource by the actual condition design and construction is made by SCP method with low replacement ratio more than 70% for the port construction in the safe side. Sand compaction pile(SCP) method has been mainly used to improve the properties of soft clay or loose sandy ground. In design of SCP at soft clay ground, it is very important to determine the stress concentration ratio of composite ground relevant to the area replacement ratio. In this study, 2-dimensional FEM analyses were carried out to evaluate the stress concentration ratio of composite ground depending upon the area replacement ratio. When the interpretation result replacement ratio was 30%, the stress assigned rate showed and as the replacement ratio was high, the stress assigned rate according to the sinkage showed the low stress assigned rate.