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http://dx.doi.org/10.15683/kosdi.2019.03.31.84

Analysis of Isochrone Effect of Clayey Soils using Numerical Analysis  

Lee, Yun-Sic (Jeongmin Geo Tech)
Lee, Jong-Ho (Department of Civil and Environmental Engineering, Daejin University)
Lee, Kang-Il (Department of Civil Engineering, Daejin University)
Publication Information
Journal of the Society of Disaster Information / v.15, no.1, 2019 , pp. 84-97 More about this Journal
Abstract
Purpose: The consolidation settlement of soft ground is dependent on the distribution of pore water pressure which is also affected by hydraulic conductivities (boundary condition) of layers, thickness of clayey soil layer and surcharge. Results: However, the current consolidation analyses are mostly based on Terzaghi's consolidation theory that assumes the initial pore water pressure ratio with depth to be constant. In this study, numerical analysis are carried out to investigate the variation of pore water pressure dissipation with depth and thickness of clayey soil layer, time, surcharge as well as drainage conditions. Conclusion: Comparative study with Terzaghi's consolidation theory is also conducted. The result shows that Terzaghi's consolidation theory should be used with caution unless it is ideally corresponded to the isochrone.
Keywords
Soft ground; Consolidation theory; Pore water pressure; Drainage condition; Isochrone;
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