The use of geotextile tubes is an alternative to dispose ore tailings, once it is possible to dewater these high humidity materials and stack the geotextile tubes. This paper is intended to present the first level tests results of a full-scale prototype of stacked geotextile tubes installed inside a gold mine company located in the state of Bahia, Brazil. The project was designed for a three-level structure, being 9 geotextile tubes units in the first level, 4 in the second level, and one geotextile tube unit in the third level of stacking. Every geotextile tube unit had 2,0m in width, 6,0m in length and was designed to have a maximum height of 1,0m throughout the filling process. The process to fill the first set of geotextile tubes from the first level is presented as well as the main results regarding volume of confined tailings and solids concentration over time. Based on field observations and geometry, the geotextile tube technology efficiency on dewatering fine tailings was verified.
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