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http://dx.doi.org/10.7843/kgs.2008.24.12.85

Evaluation of Influencing Factors on Settlement Behavior of Very Soft Ground with Reinforced Surface  

You, Seung-Kyong (Dept. of Civil Engrg., Myongji College)
Lee, Jong-Sun (Dept. of Civil, Environmental & Architectural, Korea Univ.)
Ham, Tae-Gew (Geotechnical Eng. Division, Korea Institute of Construction Technology)
Yang, Kee-Suk (Korea Port Eng.)
Cho, Sam-Deok (Geotechnical Eng. Division, Korea Institure of Construction Technology)
Choi, Hang-Seok (Dept. of Civil, of Environmental & Architectural, Korea Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.24, no.12, 2008 , pp. 85-92 More about this Journal
Abstract
It is necessary to develop a rational design method for surface reinforcement of very soft ground because most current design works rely on merely crude empirical correlations. In this paper, the mechanical behavior of very soft ground that is surficially reinforced was investigated with the aid of a series of numerical analyses. Several material properties of each dredged soft ground, reinforcement and backfill sand mat have been exercised in the numerical analysis. The result of numerical analysis was compared with those of the laboratory model test. Through the matching process between the numerical and experimental result, it is possible to determine representative material properties of the dredged soft ground, reinforcements and backfill sand mat. These verified material properties permit to evaluate the effect of the stiffness of reinforcement and the thickness of sand mat on the overall deformation of the reinforced soft ground.
Keywords
Dredged soil; Ground surface reinforcement method; Numerical analysis; Settlement; Very soft ground;
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