Eric Blond will present a 1 hour webinar discussing Designing geotextile filters to ensure their long-term performance as a replacement to sand and gravel.
Registration will be available soon.
About the Webinar
This webianr will discuss how poor groundwater management is a primary cause of failure of geotechnical structures, such as retaining walls, roadways, embankments and dams. Such structures must be designed to control water and avoid loss of bearing capacity as well as to prevent internal erosion. Granular materials with a sufficient permeability have historically been used for that purpose, however, these are scarce in several regions of the world. Geotextile filters offer an excellent alternative because of their ease of transport and use. However, their ability to perform as a filter must be verified, as would be the case with a granular filtration material.
In this webinar, ISO 18228-3 Design Standard will be introduced as the current state of the art for designing geotextile. The strategy used to verify the compatibility of a geotextile with a soil to prevent blinding, clogging and piping will be described, based on soil mineralogy, gradation and permeability, as well as geotextile properties such as opening size, permeability, number of constrictions and Percent Open Area. Other failure mechanisms such as chemical or biological clogging will also be discussed.
About the Presenter
Eric Blond is an independent consultant providing technical services to the geosynthetics and building materials industries. He is actively involved in several technical committees and associations. He is Chairman of the ASTM D35.10 Subcommittee on Geomembranes, Chairman of the Canadian Mirror Committee of ISO TC221, IGS Council Member, Chairman of the IGS Technical Committee on Hydraulic, and Secretary of the IGS North American Chapter, among others.
Eric Blond is the author of over 100 technical papers, conferences and courses. He is a lecturer at École Polytechnique de Montréal where he introduces geosynthetics to undergraduate students, and the design of geosynthetic lining systems to graduate students. He also offers customized training to engineering companies. He is registered as a professional engineer in Quebec and Alberta