The fill of Noto Airport is constructed rapidly to a height of 55 meters, and its embankment material is high water content clay. Geotextile horizontal drain is installed in the fill to accelerate consolidation. To establish a reasonable method to analyze a behavior of the fill installed the horizontal drain, an applicability of the elasto-visco-plastic FEM is examined in this paper. The result of the simulation is agreed with observed deformation and stress behavior, but horizontal deformation measured is smaller than estimated by FEM. It probably shows that a reinforced effect by friction between the soil and the geotexitile, not modeled in FEM, is produced in fact. The effect of the geocomposite drains embedded in the embankment is discussed mainly in this paper. Propositions of the paper as well as the author's views of the practical implications of the results.
展开▼
