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ERT and ARP for landfill for landfill cover surveying

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Résumé

On landfills, an impermeable cover (compacted clay and a Geosynthetic Clay Liner - GCL) is set on the top of waste. However, this protection cover may be damaged: creation of defects' could provoke preferential water pathways and therefore an unusual increase of leachate within the waste. That's why three geophysical methods have been carried out on a French landfill in order to determine their ability to detect damages in the cover. Two of these methods will be presented in this paper: the Automatic Resistivity Profiling (ARP©) which enables cartography on a large area and the Electrical Resistivity Tomography (ERT). These measurements, supplemented by manual augers, have put in evidence several heterogeneities linked with different lithology used in cover materials. The ERT has supplied additionnal infomation about the variability in the cover thickness and the discontinuity of the GCL.
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Dates et versions

hal-00662810 , version 1 (25-01-2012)

Identifiants

  • HAL Id : hal-00662810 , version 1

Citer

Fanny Genelle, Colette Sirieix, Joëlle Riss, Véronique Naudet, Bruno Dubéarnes, et al.. ERT and ARP for landfill for landfill cover surveying. EAGE Near Surface 2011, 17th European Meeting of Environmental and Engineering Geophysics, Sep 2011, Leicester, United Kingdom. ⟨hal-00662810⟩

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