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A Study on a Compression Index for Settlement Analysis of SCP Treated Ground Using Back Analysis  

Hwang, Sungpil (부산대학교 토목공학과)
Im, Jongchul (부산대학교 토목공학과)
Kwon, Jeonggeun (부산대학교 토목공학과)
Kang, Yeounike (삼성건설 토목사업본부)
Joo, Ingon (부산정보대학 건축디자인학과)
Publication Information
Journal of the Korean GEO-environmental Society / v.11, no.7, 2010 , pp. 5-14 More about this Journal
Abstract
The paper processed settlement analysis using Finite Elements Method(FEM). Because Stress Distribution Ratio has to be decreased, for settlement analysis of soft clay deposit improved by sand compaction piles(SCP). Back analysis was processed comparing the measured settlements of laboratory model tests and finite element analysis where the SCP treated area was assumed as mixed ground with clay deposit rather than being a composite ground. The paper proposes a methodology which employs a compression index($C_c$) for settlement analysis of soft clay deposit improved by sand compaction piles from the back analysis. This approach is applied to a field measurement case(A revetment founded on the SCP improved clay deposit with the replacement ratio of 45%).
Keywords
SCP; Plaxis; Finite element analysis; Settlement analysis; Mixed ground;
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