@ARTICLE{Haładus_Andrzej_Water_2002, author={Haładus, Andrzej and Kulma, Ryszard}, number={No 2}, journal={Gospodarka Surowcami Mineralnymi - Mineral Resources Management}, pages={137-153}, howpublished={online}, year={2002}, publisher={Komitet Zrównoważonej Gospodarki Surowcami Mineralnymi PAN}, publisher={Instytut Gospodarki Surowcami Mineralnymi i Energią PAN}, abstract={The selection of groundwater aquifers which meet the qualitative and quantitative standards is an alternative solution to exploitation of surface waters of usually low quality and high susceptibility to pollution. However, the localization of such aquifers in particular hydrogeological structures is sometimes impossible. The common practical solution is the construction of infiltration wells which allows the artificial recharge of water horizons and, consequently, increases the groundwater resources. Detailed hydrogcological forecast of an intake operation gains still more practical importance. Analytical methods and/or more credible mathematical modelling arc common calculation procedures. The authors evaluated the accuracy of hydrogcological forecasts for double-well infiltrational intake localized close to the recharge boundary and perpendicular impermeable boundary. The results of analytical methods and mathematical modelling were compared for intakes under the conditions of confined and unconfined water table. Totally, 48 variants were considered, differing in assumed filtration parameters of groundwater horizons as well as technical and operational conditions of the intakes. For analytical calculations of the two interacting wells the formulae developed by the authors were applied. The accuracy of analytical calculation of intake discharge under the assumed boundary conditions is satisfactory, particularly for the confined water table (error: ± 1.0%). Under the unconfined flow conditions the maximum error rises to-6.0%. The errors for depression calculation are usually low (up to several per cent) in the immediate neighbourhood of the well but increase to about -20% towards the boundaries of depression cone.}, type={Artykuł}, title={Water inflows to the two wells located close to the recharge and impermeable boundaries}, URL={http://ochroma.man.poznan.pl/Content/132601/PDF/11_GSM_18_2_2002_Haladus_Doplywy.pdf}, keywords={hydrogeology, groundwater intakes, prognostic calculations}, }