Département des Sciences et Techniques de l'Eau et du Génie de l'Environnement, U.F.R des Sciences de la Terre et des Ressources Minières (STRM), Université Félix Houphouët Boigny de Cocody, 22 B.P. 582 Abidjan 22, Côte d'Ivoire
This study realized at Bondoukou region in north-eastern of Cote d'Ivoire. It aims to analyze hydrodynamic properties of fissured aquifers with a view to improve drinking water supply at this region. Methodology applied for this study started by mapping of fractures networks from treatment of Landsat 7 satellite images with directional filters. After that, it was established relationship among the parameters of groundwater capture and their relation with fracturing and nature of rock formation. Geostatistical analysis of specific capacity of wells from corrected last step drawdown closed the methodology. Use of remote sensing led to map 5000 fractures responsible of water-bearing-layers inside bedrocks. Productive fractures are met between 30 and 60 meters under the ground with these principals directions: NE-SW, NW-SE and E-W. Great yields are also met at weathering between 15 to 45 meters. Approximately 83, 41% of arrival water occurred in the first 30 meters of the basement. Porphyroid granodiorit produced water more than other rocks formations. Variogram structuring of Log (Q/s) revealed that this hydrodynamic parameter can be considered as a regionalized variable with a range equals to 7,36 km. This is a proof of best connectivity of fractures networks identified. Estimation of specific capacities at the whole studied area was made by kriging. All results obtained through this study contribute to best comprehension of hydrodynamic properties of aquifer at North-east of C
The groundwater's exploitation located in the bedrock is one way indicated to provide water to population. Indeed, the aquifers of the fissured base constitute excellent water tanks. This article aims to determine the sites favorable to the establishment of drillings to good flows in the department of Dabakala. The methodological approach used is the combination of various geophysics methods and remote sensing. A card of morpho-structural alignments was established. This one highlighted two families of fractures hydraulically active of N70
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