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http://dx.doi.org/10.7843/kgs.2007.23.4.125

Probabilistic Analysis and Design of the Spacing of Prefabricated Vertical Drains Considering Uncertainties in Geotechnical Property  

Kim, Bang-Sig (Dept. of Civil Engrg., Chung Ju Univ.)
Kim, Byung-Il (Research & Development Center, EJtech)
Publication Information
Journal of the Korean Geotechnical Society / v.23, no.4, 2007 , pp. 125-132 More about this Journal
Abstract
The oedometer, radial CRS and Rowe cell tests, composite discharge capacity tests and smear effect tests are carried out to estimate the parameters for the reliability-based design of vertical drain method. Also the sensitivity analysis, the probabilistic and deterministic solutions of radial consolidation theory are presented. The result of probabilistic analysis was compared to that of deterministic analysis using the tested and estimated parameters. The results indicated that the drain spacing in the deterministic method is larger than that in the probabilistic method because the former does not consider the uncertainties in the geotechnical property. The divergence of two methods is dependent on the probability of achieving target degree of consolidation by a given time and the coefficient of variation (COV) of the coefficient of horizontal consolidation ($c_h$).
Keywords
Coefficient of variation; Probabilistic solution; Reliability-based design; Vertical drain;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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