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Constrained Effect of Soil Nail Head on the Earthquake Load  

Oh, Joungkeun (Chungbuk National University School of Civil Engineering)
Kang, Hongsig (Chungbuk National University School of Civil Engineering)
Ahn, Kwangkuk (Chungbuk National University School of Civil Engineering)
Publication Information
Journal of the Korean GEO-environmental Society / v.14, no.2, 2013 , pp. 43-50 More about this Journal
Abstract
In this study, the tests were carried out for the behavior according to method of constrained nail head of slope reinforced with soil nail under dynamic loading, by using shaking table. Shaking table tests were carried out by applying Hachinohe seismic wave having the long-period characteristics and Ofunato seismic wave having short-period characteristics, as changing constrained and unconstrained condition of nail head, and so on. Failure mode, ground acceleration characteristics, vertical displacement and horizontal displacement of slope were compared and analyzed on the basis of results obtained from the test. Results of carrying out shaking table test showed that both short-period wave and long-period wave had large effects on slope, and constraint of nail head was found to have large shear resistance for dynamic load. And it was confirmed that stability of slope under seismic loading was largely improved by constrained head of soil nail.
Keywords
Slope; Constrained soil nail head; Non-constrained soil nail head; Seismic wave;
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  • Reference
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