(Received 29 March 2014; accepted 17 June 2014)
Published Online: 2014
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The settlement rate–settlement method for radial consolidation (SRSM–RC) is proposed for evaluating the coefficient of radial consolidation cr and end-of-primary (EOP) settlement δp. The SRSM–RC explicitly relates cr and δp to the intercept and slope of the linear settlement rate–settlement (dδt/dt-δt) relationship observed theoretically over the entire Ur range of the Barron theory; δt is the settlement at time t and Ur is the degree of radial consolidation. The SRSM–RC computes cr independently of any specific Ur value and can simultaneously compute δp without the need to use the secondary compression range. The SRSM–RC does not require a complete record of compression–time data; a minimum of four representative data points at any stage of primary consolidation are required to estimate cr by the SRSM–RC. Experimental results on radial consolidation of several clayey soils obtained from literature are used to validate and compare the SRSM–RC with existing methods. The validity of the method is also evaluated by matching the experimental compression–time data with the theory.
Al-Zoubi, Mohammed Shukri
Civil and Environmental Engineering Department, Faculty of Engineering, Mutah Univ.,
Stock #: GTJ20140066