Protecting the Environment with Geosynthetics: 53rd Karl Terzaghi Lecture

Rowe, R. Kerry

doi:10.1061/(asce)gt.1943-5606.0002239

Cited by 55 publications

(15 citation statements)

References 127 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Cependant la geomembrane ne pourra pas tenir son rôle d'étanchéité si elle est endommagée par la couche drainante et présente des défauts (Rowe, 2017). Ceux-ci peuvent apparaître lors de l'installation, même si un contrôle de pose de qualité permet de les éviter en partie (Touze-Foltz et al, 2008 ;Rowe, 2017). Le CFG travaille actuellement à l'élaboration d'un guide de recommandations pour la protection des géomembranes.…”

Section: Minimisation De L'impact Du Transport De Contaminants Des Ma...unclassified

Contribution des géosynthétiques au développement durable

Touze-Foltz¹

2019

Rev. Fr. Geotech.

View full text Add to dashboard Cite

Il ne semble pas y avoir consensus pour dire si le monde traverse aujourd’hui une crise sans précédent ou non. Quoi qu’il en soit, il reste un nombre de situations inacceptables et des améliorations urgentes sont à réaliser. Le monde est un organisme complexe qui souffre de nombreuses crises : crise économique et financière, crise environnementale, de l’agriculture, crise sanitaire, crise des valeurs. Face à une crise systémique comme celle-ci la réponse doit être globale. Comment les géosynthétiques et la société internationale des géosynthétiques (International Geosynthetics Society, IGS) peuvent-ils contribuer à résoudre ces crises et apporter leur contribution à la guérison du monde ? Les solutions technologiques sont le plus souvent mises en exergue. Elles ne seront pas suffisantes. Quelles valeurs pouvons-nous attendre de l’IGS 35 ans après sa création ? L’objectif de la lecture Giroud, dans une version en français et raccourcie ici est de mettre en évidence ces différentes contributions pour apporter de l’eau de qualité à tous, nourrir le monde, protéger notre environnement, atténuer ou anticiper les catastrophes naturelles, apporter des solutions économiques et connecter les hommes pour les aider à vivre ensemble selon les valeurs humaines universelles.

show abstract

Section: Minimisation De L'impact Du Transport De Contaminants Des Ma...unclassified

Contribution des géosynthétiques au développement durable

Touze-Foltz¹

2019

Rev. Fr. Geotech.

View full text Add to dashboard Cite

show abstract

“…Geomembranes (GMB) have proven to be excellent seepage barriers for modern municipal solid waste (MSW) landfills, where the GMB is generally overlain by a high permeable layer and underlain by a lower permeable layer such as a compacted clay liner or geosynthetic clay liner (Rowe 2005(Rowe , 2020Rowe and AbdelRazek 2019;Yu and Rowe 2018). To date, leakage through GMB defects has been studied extensively for conditions applicable to the MSW landfills (e.g., Giroud andBonaparte 1989a, 1989b;Giroud 1997;Rowe 1998Rowe , 2012Rowe , 2020. However, most Canadian waste, like that of other countries, is not municipal solid waste.…”

Section: Introductionmentioning

confidence: 99%

“…GMBs used in mining applications are most commonly either made from high-density polyethylene (HDPE) or linear low-density polyethylene (LLDPE) with a typical thickness of 1.0 to 2.5 mm D r a f t 4 (Touze et al 2008;Rowe et al 2013). With these GMBs, the leakage (i.e., fluid flow under a hydraulic gradient) is effectively limited to flow through holes in the GMB that most commonly arise either during construction (including during placement of material over the GMB) or subsequently due to stress cracking (Abdelaal et al 2014;Ewais et al 2014;Rowe 2012Rowe , 2020. Given the size and remote location of TSFs, the subgrade soil beneath the GMB is often the in-situ soil or rock, where a filtercompatible subgrade (also referred to by some as an underliner) might not exist without significant earthworks (Lupo and Morrison 2007).…”

Section: Introductionmentioning

confidence: 99%

Seepage through a circular geomembrane hole when covered by fine-grained tailings under filter incompatible conditions

Fan

Rowe

2022

Can. Geotech. J.

Self Cite

View full text Add to dashboard Cite

Experiments are conducted to quantify leakage through a circular geomembrane (GMB) hole using two types of underliner not meeting modern filter criteria. Test results show that a 1.9 and 5.0-fold increase in hole diameter cause a 1.8 and 6.2-fold increase in leakage, respectively; while a 2-fold increase in GMB thickness results in an approximate 10% decrease in leakage. For a constant effective stress, a 2 and 3-fold increase in water head above the GMB lead to a 1.8 and 2.5-fold increase in leakage, respectively. The effect of the intrusion of underliner materials through the hole is quantified. A numerical model, considering the localized concentration of head loss around the hole and the consequent non-homogeneity in hydraulic conductivity due to the seepage force, is presented. It is shown that percent of head loss within the hole and from the hole to any position above the GMB are independent of loading conditions, and are only influenced by the GMB thickness and hole diameter. Finally, empirical equations for predicting leakage through a circular GMB hole in tailings storage applications are proposed.

show abstract

“…Indeed, the long-term cost associated with poor waste management could be higher than primary proper waste management [11]. Waste disposal has developed from dump sites at which the waste is in direct contact with the ground to engineered landfills that comprise base barriers that separate the waste from groundwater [12]. Landfilling is the most common waste disposal method in many countries [13][14][15], and landfills are the destination for waste either directly from the source (if landfilling is adopted solely as a waste management system), or the residual waste by-product from other waste management techniques [13].…”

Section: Introductionmentioning

confidence: 99%

Municipal Solid Waste and Leachate Characterization in the Cairo Metropolitan Area

et al. 2022

View full text Add to dashboard Cite

The composition of municipal solid waste (MSW) in the Cairo metropolitan area is investigated. The outputs of MSW sorting analysis at various locations in Cairo with different waste management schemes are presented. Organics (58–75%) and plastic waste (19–28%) are the main components of MSW in Cairo with a higher percentage of organics in landfills compared to dumpsites. The leachate quality is analyzed, and the analysis results indicate that the concentration of macro inorganic pollutants (NH4+, Na+, Ca2+, and Cl−) and heavy metals (e.g., Cd2+ and Zn2+) are exceeding the majority of values reported in the literature in various cities all over the world. There was no evidence of an effect of the recycling process on chloride concentration in leachate, while the concentration of iron was reduced. The variation of leachate quality with time for two samples collected from the same municipal solid waste landfill is presented. The first leachate sample is a two-year-old, and the second sample is a sixteen-year-old. There was a significant increase in the concentration of chloride, sodium, chromium, calcium, and magnesium. The implications of the leachate quality in Cairo on the longevity of barrier systems in an MSW landfill are discussed.

show abstract

Protecting the Environment with Geosynthetics: 53rd Karl Terzaghi Lecture

Cited by 55 publications

References 127 publications

Contribution des géosynthétiques au développement durable

Contribution des géosynthétiques au développement durable

Seepage through a circular geomembrane hole when covered by fine-grained tailings under filter incompatible conditions

Municipal Solid Waste and Leachate Characterization in the Cairo Metropolitan Area

Contact Info

Product

Resources

About