.../i_{soil) by ASTM D5101 , were calculated to evaluate the blinding in the soil-geotextile filter zone. Blinding factor (BF = icz/isoil) was also used to analyze the limit state for blinding following the methodology cited by Moraci et al. (2012b) , where}...

...N. Moraci; M. C. Mandaglio; S. Bilardi The paper focuses on the evaluation of the long-term behaviour of geotextile filters in contact with cohesionless soils. The clogging, blinding and piping levels of the filtering systems have been evaluated analysing the results of long-term filtration tests...

... is not correctly designed. In particular, the main limit states of the filtering systems, which can lead to the inefficiency of the drainage system or to the failure of the structure, are base soil erosion (piping), geotextile filter blinding and/or clogging and geotextile filter flapping. Base soil erosion...