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http://dx.doi.org/10.12814/jkgss.2018.17.4.021

A Study on the Long-term Settlement Characteristics of Thick Clay Deposits Using Field Monitoring  

Kwon, Hyun-Wook (Department of Civil and Environmental Engineering, Pusan National Univ.)
Im, Jong-Chul (Department of Civil and Environmental Engineering, Pusan National Univ.)
Chang, Ji-Gun (Department of Civil and Environmental Engineering, Pusan National Univ.)
Kang, Sang-Kyun (Department of Civil and Environmental Engineering, Pusan National Univ.)
Publication Information
Journal of the Korean Geosynthetics Society / v.17, no.4, 2018 , pp. 21-28 More about this Journal
Abstract
Despite a number of studies on consolidation behavior that have been carried out in the Nakdong River estuary in Busan, these are focused on the prediction of final settlement during ground improvement process, and there is almost no research on the long-term settlement occurring after that. For the practical study on the long-term settlement, the field monitored settlement data that measured over 10 years in the Busan new port facilities area were used, and the final settlement and predicted time-settlement line were constituted by hyperbolic function. As a result, the measured settlements depend on the thickness of clayey soils, and the pattern were similar to each other and good agreement with the predicted time-settlement line using hyperbolic method. Also, the settlement in the lower non-improved layer occupied 62-76% of total settlement. Information about above results would be quite helpful to understand the long-term settlement behaviors as well as the non-improved layer's settlement is more careful consideration needed at design phase.
Keywords
Long-term settlement; Hyperbolic method; Ground improvement; Field monitoring;
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