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http://dx.doi.org/10.7843/kgs.2014.30.2.53

Effects of Various Loading Periods on the Consolidation Characteristics of Remolded Clay - With Special Reference to Gwangyang Marine Clayey Soil -  

Hong, Jae-Cheol (Dept. of Rural & Bio-Systems Engrg., Chonnam National Univ.)
Kim, Jin-Young (Dept. of Rural & Bio-Systems Engrg., Chonnam National Univ.)
Shim, Jae-Rok (Dept. of Rural & Bio-Systems Engrg., Chonnam National Univ.)
Kang, Kwon-Soo (Dept. of Civil Engrg., Seonam Univ.)
Kim, Ju-Hyun (Graduate School of Science and Engrg., Yamaguchi Univ.)
Baek, Won-Jin (Dept. of Rural & Bio-Systems Engrg., Chonnam National Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.30, no.2, 2014 , pp. 53-64 More about this Journal
Abstract
This study sets it's face to define effects of the various loading periods in normal consolidation area on clay's compression and long-term consolidation characteristics through a laboratory test using homogeneous remolded clay. Moreover, by carrying out a long-term consolidation test which diversifies initial consolidation applicable to effective overburden loading in the various loading period. This study intended to suggest the method predicting the final settlement on the basis of loading periods by comparing and analyzing compression curve's characteristics according to loading weight of each stage and increase in loading period when carrying out the standard consolidation test. From the test results, the study shows that as of the soft clay's compression characteristics on the basis of various loading periods, preconsolidation load has a tendency to be decreased slightly as the loading period is getting more and more longer at each step after initial consolidation load puts on the remolded clay which is caused by secondary consolidation's increase in the latter part of each phase. And those effects have an weaker influence on compression index in normal consolidation area at the same time as secondary consolidation brought out quasi-overconsolidation and stabilization of clay's structure, have an influence re-compression index is increased in overconsolidation area on the other hand.
Keywords
Creep; Overconsolidation; Initial consolidation loads; Loading periods;
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