Design of reinforced slopes and walls with low-permeability fills using draining geogrids

J. P. Giroud, P. J. Naughton, P. Rimoldi, M. Scotto

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

A combined reinforcement and drainage geogrid (herein referred to as "draining geogrid") has been developed for the construction of steep slopes and walls with low-permeability fills. With such fills, drainage is necessary to minimize pore pressure buildup. The draining geogrids provide drainage thanks to channels in their longitudinal strips. The design of reinforced slopes and walls using draining geogrids consists in: estimating the magnitude and time for dissipation of excess pore water pressures in the reinforced fill; evaluating the stability of the reinforced fill; and evaluating if the hydraulic transmissivity of the draining geogrids is sufficient to ensure rapid dissipation of excess pore water pressure. Draining geogrids have been used for a decade. However, a significant increase in the number of applications of draining geogrids is expected due to the increased scarcity of draining fill and the increasing use of local soils for environmental purposes. An updated design method for reinforced slopes and walls using draining geogrids is presented.

Original languageEnglish
Title of host publication10th International Conference on Geosynthetics, ICG 2014
EditorsMartin Ziegler, Kirsten Laackmann, Gerhard Brau, Georg Heerten
PublisherDeutsche Gesellschaft fur Geotechnik e.V.
ISBN (Electronic)9783981395396
Publication statusPublished - 2014
Event10th International Conference on Geosynthetics, ICG 2014 - Berlin, Germany
Duration: 21 Sep 201425 Sep 2014

Publication series

Name10th International Conference on Geosynthetics, ICG 2014

Conference

Conference10th International Conference on Geosynthetics, ICG 2014
Country/TerritoryGermany
CityBerlin
Period21/09/1425/09/14

Keywords

  • Drainage
  • Geogrids
  • Low-permeability fill
  • Reinforced slopes
  • Reinforced walls

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