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The Method of Estimating Group Effect with Small Pull-out Tests of Screw Anchors  

Park Si-Sam (Technical Division, GS E&C Corp.)
Lee Hyung-Kyu (Dept. of Civil Engrg., Seoil College)
Publication Information
Journal of the Korean Geotechnical Society / v.21, no.10, 2005 , pp. 123-131 More about this Journal
Abstract
In the present study, laboratory pull-out tests with screw anchors are carried out to investigate behavior characteristics of the anchors used in foundation system of underground structures which are applied to uplifting seepage forces. Small scaled pull-out tests in sand under saturated condition and dry condition were carried out. For estimating the group effects of the anchors, the upward displacement and the pullout load varied with spacing of the anchor were observed. The test results were compared with theoretical equation for the ultimate pull-out force. Also, the result of tests can be used to the finite element analysis program, $PENTAGON^{2D}$.
Keywords
Group effect; Laboratory pull-out test; Screw anchor; Uplift seepage force;
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  • Reference
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