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http://dx.doi.org/10.12814/jkgss.2022.21.1.023

A Study on Determination of the Degree of Consolidation and Time Factor Considering Site Ground Characteristics  

Choi, Min-Ju (Dept. of Civil Engineering, Daejin University)
Kim, Hung-Nam (Dept. of Civil Engineering, Daejin University)
Lee, Kang-Il (Dept. of Civil Engineering, Daejin University)
Publication Information
Journal of the Korean Geosynthetics Society / v.21, no.1, 2022 , pp. 23-32 More about this Journal
Abstract
This study is conducted to minimize the problems caused by the difference between the settlement and settlement time of the one-dimensional consolidation analysis by the Terzaghi's consolidation theory, which is generally used in domestic soft soil design, from the settlement and settlement time measured at the field site. Consolidation-time factor considering the field site characteristics can be determined using the relationship among the degree of consolidation, settlement time, and time factor, the time-settlement curve measured at the field is reverse- analysis using a numerical-analysis technique to reproduce the same consolidation behavior as in the field. Time-settlement and time-excessive pore water pressure data when the same consolidation behavior as the site is reproduced Consolidation-time factor of the soil of Songsan Green City by settlement and excess pore water pressure was calculated using the settlement and excess pore water pressure for each settlement time. If the results of this study use the Terzaghi consolidation-time factor, which does not consider the consolidation characteristics of the soft ground target area, it is difficult to determine the end time of the soft ground during construction. It is necessary to use the established settlement-time factor.
Keywords
Soft ground; Degree of consolidation; Time factor;
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  • Reference
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