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http://dx.doi.org/10.12814/jkgss.2020.19.3.009

The Numerical Analysis on the Behaviour of Combined Sheet Pile in the Reclaimed Ground Mixed by Sandy Soil and Clayey Soil  

Kim, Byung-Il (Expert Group for Earth & Environment)
Kim, Young-Sun (Expert Group for Earth & Environment)
Han, Sang-Jae (Expert Group for Earth & Environment)
Park, Eon-Sang (Construction System Engineering, Soongsil Cyber University)
Publication Information
Journal of the Korean Geosynthetics Society / v.19, no.3, 2020 , pp. 9-21 More about this Journal
Abstract
In this study, the design method of the combined sheet pile was considered in the coastal landfill where sandy and clayey soils are mixed, and the behavior in excavation was analyzed. It was confirmed from the elasto-plastic analysis that the predicted behavior of the temporary facilities of earth retaining differs according to the type of the combined sheet pile method (Built up, Interlocking, Welding) and the analysis method (soldier pile method, continuous wall method). In the case of sheet pile member force, the results of the continuous wall analysis method predicted the most conservative results. When the stress ratio (calculation/allowance) of each member was analyzed based on the maximum member force of the combined sheet pile method, the maximum value was obtained for bending moment in the side pile and combined stress in the case of the strut. As a result of finite element analysis, the member force of the side pile was the largest in the short-term effective stress analysis condition, while the compressive force of the strut was large in the consolidation analysis. When comparing the results of the elasto-plastic analysis and the finite element analysis, the shear force of the side pile and the axial force of the strut were greatly evaluated in the elasto-plastic analysis, and the bending moment of the side pile was the largest in the short-term effective stress condition of the finite element analysis. In addition, the displacement of the side pile was predicted to be greater in the finite element analysis than in the elasto-plastic analysis.
Keywords
Combined sheet pile; Sheet pile design; Ground improvement; Landfill;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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