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http://dx.doi.org/10.12814/jkgss.2012.11.2.049

Stratum Division Effect of Consolidation Settlement Formula Using Compression Index  

Kim, Khi-Woong (College of Urban Science, School of Urban Construction Engrg., Univ. of Incheon)
Publication Information
Journal of the Korean Geosynthetics Society / v.11, no.2, 2012 , pp. 49-54 More about this Journal
Abstract
The final consolidation settlement is important factor in soft ground improvement because of settlement management and completion time. The compression index, which is slope of primary consolidation curve, is commonly used for the calculation of final consolidation settlement in clay layer. The existing final consolidation settlement is calculated in total consolidation layer that is assumed as one layer. This paper describes analysis result of the acquired settlement, when the consolidation layer is divided as several layer. The consolidation settlement increased according to increase of the divided layer and then it is converged. This result was unrelated to surcharge load. The division effect of layer is very high when the surcharge load is less than the consolidation layer thickness. The division effect of layer is 1.2 to 1.4 in the general surcharge load, and this value can be apply as safety factor in the calculation of final consolidation settlement.
Keywords
Soft stratum; Settlement; Stratum division;
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