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http://dx.doi.org/10.7843/kgs.2018.34.4.37

Effect of Relative Density and Fines Content on Pullout Resistance Performance of Drilled Shafts  

You, Seung-Kyong (Dept. of Civil Engrg., Myongji College)
Hong, Gigwon (Institute of Technology Research and Development, Korea Engrg. & Construction)
Jeong, Minwoo (Dept. of Civil Engrg., Chung-Ang Univ.)
Shin, Heesoo (UCI Tech Co. Ltd)
Lee, Kwang-Wu (Infra Safety Institute, Korea Institute of Civil Engrg. and Building Technology)
Ryu, Jeongho (Infra Safety Institute, Korea Institute of Civil Engrg. and Building Technology)
Publication Information
Journal of the Korean Geotechnical Society / v.34, no.4, 2018 , pp. 37-47 More about this Journal
Abstract
This paper described a results of direct shear test and pullout test by using soil supported by drilled shafts in order to evaluate the effect of relative density and fines content on pullout resistance performance of drilled shafts. The result of direct shear test showed that the variation characteristics of internal friction angle and cohesion could be confirmed quantitatively. The result of pullout test also showed that the effect of relative density and fines content on pullout resistance performance of drilled shafts was confirmed. That is, the contribution of the internal friction angle and cohesion of soils on the pullout resistance performance of drilled shafts was found to vary, when the fines content was about 13% based on results direct shear test and pullout test. Therefore, at design of drilled shafts, the effect of skin friction resistance should be considered on the influence factor of strength parameters ($c-{\phi}$) according to the fines content of soil.
Keywords
Drilled shafts; Pullout resistance performance; Fines content; Relative density; Skin friction;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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