التفاصيل البيبلوغرافية
| العنوان: |
Evidence for an underground runoff and soil permeability at the Ouled Fayet (Algiers, Algeria) subsurface landfill pilot project from geophysical investigations. |
| المؤلفون: |
Djadia, Leila, Machane, Djamel, Chatelain, Jean-Luc, Abtout, Abdesslam, Bensalem, Rabah, Guemache, Mehdi Amine, Guillier, Bertrand, Boudella, Amar, Oubaiche, El-Hadi |
| المصدر: |
Environmental Earth Sciences; 2010, Vol. 59 Issue 5, p1149-1158, 10p, 1 Diagram, 4 Graphs, 1 Map |
| مصطلحات موضوعية: |
LANDFILLS, RUNOFF, SOIL mechanics, WATER pollution, PERMEABILITY |
| مصطلحات جغرافية: |
ALGIERS (Algeria), ALGERIA |
| مستخلص: |
Results from geophysical investigations (electrical resistivity, electromagnetic mapping and seismic refraction) on an excavated cell of the Ouled Fayet (Algiers, Algeria) pilot landfill indicated the presence of an underground runoff and permeable soil underneath the cell. These results contradict those obtained by a feasibility study, based, however, only on the analysis of seventy-six 10-m drilling cores. The 1D boreholes information has been proven to be insufficient and to give biased results. The presence of water at depth is evidenced by lower resistivity, high conductivity anomalies and increase of P-wave velocity. Thus, to the contrary of what is claimed in the feasibility study, a threat of leachate pollution is real. This study shows that landfill construction studies cannot give trustful results without geophysical investigations. More specifically, in Algeria, it is imperative to elaborate a landfill construction code, which should include mandatory geophysical prospecting and deeper drilling cores. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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