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DRAINTUBE (Multilinear Drainage Geocomposites) for Environmental Applications

by Pascal Saunier (AFITEXINOV Geosynthetics inc.)


26 May 2022


10:30 am



Multilinear drainage geocomposites are a drainage dedicated family of geosynthetics. Capable of draining as well gas and water, those technical materials are used in landfill for various applications at every stage of the operation of the site. For the construction of a new cell, they are used for groundwater collection below the liner, or into the cell for leachate collection. Within the waste, they are used as finger drains in replacement of horizontal trenches for gas or leachate extraction. They are also used for temporary cover as part of the gas venting system below the temporary liner, or for final covers as gas collection system below the liner or surface water drainage system on top of the liner. We also find conductive DRAINTUBE between 2 liners in ponds to increase the efficiency of leak location surveys on non-conductive primary liner.

About the Speaker:

Pascal Saunier is a French-Canadian professional engineer. After having managed a waste management facility in France, Pascal moves to Canada and continues to develop his expertise in the geosynthetics industry with AFITEXINOV, the French manufacturer of DRAINTUBE™ technology. AFITEXINOV and SOLETANCHE-FREYSSINET are partners in Asia for DRAINTUBE™ technology. Pascal is currently leading the business development for North America and Pacific regions. Pascal Saunier cumulates 25 years of experience in the area of the geosynthetics and more than 20 years exclusively in the development and technical support in the Multilinear Drainage Geocomposites world.

Registration : Please register by 23th May 2022. Successful applicants will receive webinar details on 24th May 2022. CPD certificate will be sent to the attendees after the webinar.

Book Prize :

The youth professionals under 35 years old are encouraged to submit their reports (max. 500 words) in quality on this event. Please refer to the AGS HK’s website “The AGS Book Prize Reports–Assessment Framework” for details before the submission. The successful candidate will be awarded with the Book Prize that comprises of a book "Geology of Site Investigation Boreholes in Hong Kong" that written by Chris Fletcher, and a book coupon with value of HK$500 from Eslite Bookstore ( 誠品書店 ). The awarded report will further be uploaded to the website of AGSHK. Please send your report to Mr. Haydn Chan through the email:

Keywords: Geoenvironmental Engineering

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