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http://dx.doi.org/10.12814/jkgss.2016.15.4.097

Leaching Characteristics on Clay Ground induced by Artesian Pressure  

Yun, Daeho (Department of Ocean engineering, Pukyong National University)
Kim, Yuntae (Department of Ocean engineering, Pukyong National University)
Publication Information
Journal of the Korean Geosynthetics Society / v.15, no.4, 2016 , pp. 97-104 More about this Journal
Abstract
This paper performed consolidation tests on soft ground with and without artesian pressure conditions to find out characteristics of leaching effects using two types of one-dimensional column equipment(height : 1,100mm, outer diameter : 250mm). Artesian pressure of 5.5kPa was applied to the bottom of soft ground inside column equipment. Distribution of salinity and shear strength with soil depth were measured after the consolidation test. From the results, it was found that distribution of undrained shear strength and salt concentrations were similar at the top of clay ground irrespective of artesian pressure condition. However, at the bottom of clay ground, the values of undrained shear strength and salt concentration under artesian pressure were lower than those without artesian pressure. This result indicates that structure of soft soil with artesian pressure was weakened by salt leaching. Electronic resistance results showed that void ratio under artesian pressure condition was more reduced than that without artesian pressure condition.
Keywords
Artesian pressure; Undrained shear strength; Soft ground; leaching effect; Electrical resistivity;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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