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Giroud Lecture: Geotextile filters: From idealization to real behaviour
Time:
Monday, 18/Sept/2023:
9:30am - 10:30am
Session Chair: JEAN PIERRE GOURC
Location:Plenary Room
Lecturer: Ennio Marques Palmeira
Presentations
9:30am - 10:30am
Geotextile filters: From idealization to real behaviour
Ennio Marques Palmeira
University of BrasÃlia, Brazil
Geotextiles have been used as filters in geotechnical and geoenvironmental works for decades. Despite their broad utilization, these filters still find obstacles to the expansion of their application in larger projects and under complex soil and flow conditions. However, environmental issues are increasingly pressing for a greater use of geotextile filters in substitution to natural granular materials. Even though many important studies in the literature have improved the understanding of soil-fluid-geotextile filter interaction, some issues still require thorough investigation aiming at a better understanding of the behaviour of geotextile filters and the development of better design methodologies. This paper discusses how geotextiles filters are expected to behave in the field and some contradictions between idealized and expected behaviour. Concerns regarding the use of geotextile filters under severe and critical conditions and how filter malfunction can be avoided or minimised are also addressed.
