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A special apparatus has been constructed which allows investigating the filter properties of geotextiles. Tests on three different geotextiles and five different fine grained cohesionless soils are described. Low densities of the soil samples and high hydraulic gradients have been selected to consider unfavourable conditions for piping failures which occurred in several tests. The results of the tests are compared with existing filter criteria for geotextiles.
Authors:Bucher, Felix and Gassmann, Christof and Sterba, Ivo
Index Terms:Soil; SoilGroup; geotextile
Further Information:Date published: 1987