Technical – Filtration

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IGS TECHNICAL COMMITTEE ON FILTRATION

The Technical Committee on Filtration (TC-F) is dedicated to the development of geosynthetic systems and associated technologies. This committee promotes the knowledge, technology, research findings, design, and construction methodologies related to filtration applications of geotextiles and other geosynthetics for separation, stabilization, drainage, and erosion control in geotechnical and geoenvironmental engineering.

The Main Objectives of the TC-F:

  • Promote a sounder and more scientifically based use of geotextiles in filtration
  • Promote the dissemination of information on and expansion of the use of geotextile filters in geotechnical and geoenvironmental works
  • Encourage and provide assistance to the organization of national, regional, and international scientific events on filtration
  • Encourage and provide assistance to the organization of educational initiatives and to provide educational material related to filtration
  • Interact with other IGS committees to encourage the advancement of geotextile filters
  • Work in conjunction with IGS Chapters and/or related geotechnical and civil/environmental engineering societies or organizations to promote the dissemination of information on and expansion on the use of geotextile filters

 
All of these goals are related to the pioneering work undertaken by the previous TC-F Chair, Prof. Ennio Palmeira, and his co-leaders: Eric Blond, Jonathan Fannin, and Nicola Moraci. The IGS membership at large thanks these volunteers for their hard work.

Continuing their work, the TC-F will work from the established relationships between the IGS and several international organizations. For example, there is an evident need to improve understanding of technology advances following aging publications such as the ICOLD Bulletin 55 (1986) on geotextiles as filters and transitions in embankment dams, as well as more recent expressions of reservation such as published by FEMA (2012). IGS and ICOLD are working more closely together now on the development of guideline documents on embankment dams. They have made significant advances on preparing a guideline document addressing geotextiles as filters in dam engineering. This “work in progress” acknowledges the benefits and limitations of geotextiles as filters, and advocates their use as adjuncts to granular filters in critical inaccessible applications, in particular under challenging engineering conditions.

The Geofilters 2004 specialty conference focused attention on the then state of the art of granular filters and of geotextile filters. A follow-up event, however, is overdue, to consider the mutual benefits of these materials. A specialty conference on composite filters is being proposed, with a 2017 date under consideration.

An area of discussion receiving research attention is the question of reliability of methods for determining geotextile pore size. It is anticipated that the committee membership will contribute significantly to this debate.
 

EVENTS YOU ARE PLANNING

Recent TC-F Activities

  • The TC-F is grateful for the pioneering work undertaken by its previous Chair, Prof. Ennio Palmeira, and his co-leaders: Eric Blond, Jonathan Fannin, and Nicola Moraci. The IGS membership at large thanks these volunteers for their hard work! Their and the Committee’s work was recognized in a special TC-F report, which covered the group’s inaugural period.
  • During the 16th IGS Council Meeting (27 September 2014, Berlin) the TC-F selected its 2015 – 2018 committee leaders.

 

Future TC-F Activities

  • Expect technical session at GeoAmericas 2016, 10 – 13 April 2016, Miami, Florida, USA.
  • Possible specialty conference on composite filters in 2017, following up on the important Geofilters 2004 event.
  • Continue working with ICOLD on developing guidelines and documents related to geotextiles in dam engineering.

Chair:
Kelvin R. Legge
Dept. of Water Affairs in South Africa
leggek@dws.gov.za

Co-Chair:
Sam Allen
TRI/Environmental Inc.
SAllen@tri-env.com

Co-Chair:
Eric Blond
SAGEOS/CTT Group
eblond@gcttg.com

Co-Chair:
Nicola Moraci
Università Mediterranea di Reggio Calabria
nicola.moraci@unirc.it

Secretary:
Preston Kendall
Geofabrics Australia
p.kendall@geofabrics.com.au

IGS members wishing to participate in TC-F activities are invited to write to the committee Secretary Mr. Preston Kendall: p.kendall@geofabrics.com.au. For additional information about the IGS Technical Committees, contact the IGS Secretariat: IGSsec@GeosyntheticsSociety.org.

Download Membership List (PDF)