GeoAsia - 8th Asian Regional Conference on Geosynthetics, 2025, Brisbane
Up to now geotextiles have been used successfully for nearly five decades for different purposes. In particular it is common practice to use them for filtration and drainage purposes in different kinds of infrastructure constructions projects like roads, levee dykes or similar structures. However, it is noticeable that they are less frequently used in dam embankment construction. The paper starts with a short summary of the current practice of constructing dam embankments, which shows clearly the lack of regulations/guidance regarding using of geotextile filters in dam embankments. Thereafter design aspects of filters and drains are discussed in detail. This includes clogging, blinding, chemical stability, long-term durability and finally construction damage. Combining the mentioned aspects, and based on the significantly increased knowledge regarding design, testing and long-term behaviour of geotextile filters, as well as positive experiences on different construction projects and the chance to save natural resources it is the author’s opinion to rethink the use of geotextile filters in dam construction and further develop the current standards and guidelines in this regard.
