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http://dx.doi.org/10.7843/kgs.2010.26.1.35

Load-Settlement Characteristics of Concrete Top-Base Foundation on Soft Ground  

Kim, Jae-Young (Dept. of Civil and Environmental Engrg., Yonsei Univ.)
Jeong, Sang-Seom (Dept. of Civil and Environmental Engrg., Yonsei Univ.)
Kim, Soo-Kwan (EST Construction Co. Ltd.)
Publication Information
Journal of the Korean Geotechnical Society / v.26, no.1, 2010 , pp. 35-43 More about this Journal
Abstract
The behavior of the Top-Base foundation was investigated by carrying out 3D finite element method. Special attention is given to the settlement behavior of concrete Top-Base foundation due to the consolidation settlement of the embedding depth and the effect of footing dimensions which are not included in the practical design. To obtain the detailed informations, a series of numerical analyses were performed for different pile configurations. It is shown that as the number of piles in a group increases, the calculated settlement also increases. However, for the $7\times7$ group, there is no further increase in settlement. Based on this study, it is found that the total settlement of Top-Base foundation is highly influenced by the consolidation settlement and footing configurations. It is also found that the current design method overestimates the settlement, and thus, needs to be modified and supplemented.
Keywords
3D finite element method; Consolidation settlement; Embedding depth; Footing configurations; Soft ground; Top-Base method;
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