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2-Dimensional Equilibrium Analysis and Stability Analysis of Geotextile Tube by Hydraulic Model Test  

신은철 (인천대학교 토목환경시스템공학과)
오영인 (인천대학교 토목환경시스템공학과)
Publication Information
Journal of the Korean Geotechnical Society / v.18, no.5, 2002 , pp. 251-260 More about this Journal
Abstract
Geotextile tribes are made of sewn geotextile sheet and hydraulically or mechanically filled with dredged materials. They have been applied in hydraulic and coastal engineering in recent years(shore protection structure, detached breakwater, groins, and jetty). Therefore, it is composed of geotextile and confined fill material. Recently, new preliminary design criteria supported by model and prototype tests, and some stability analysis calculations have been studied. The stability analysis of geotextile tube is composed of geotechnical and hydrodynamic analysis. The stability check points are sliding failure, overturning, bearing capacity failure against the wave attack. In this paper are presented the stability analysis method by empirical equation and 2-D equilibrium analysis for geotextile tube. Also, the hydraulic model tests were performed to verify the theoretical stability analysis with geotextile tube shape, filling ratio, significant wave height, and so on. The results of this study show that the stability of geotextile tube depends on the tube shape, contact area, projection area. The theoretical analysis and hydraulic model test show almost the same results.
Keywords
Geotextile tube; Hydraulic model test; Significant wave height; Stability; 2-D equilibrium analysis;
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