Abstract:

Climate change and the constant surface sealing in urbanized areas contribute to the disruption of the natural hydrological cycle. These unfavorable changes contribute to two serious problems: the increased flood risk, as well as depletion of groundwater resources leading to the hydrological or hydrogeological drought. The article presents a characteristics of selected methods and measures classified as sustainable urban drainage systems (SUDS) which are nature-based solutions and enable to manage the stormwater in accordance with the best management practices (BMP). The subject of the article focuses mainly on infiltration wells (dry wells) used for rainwater infiltration. The aim of the research presented in the paper is to analyse the impact of different selected parameters on the depth of the water column in the well which, in turn, directly affects the dry well absorption capacity. Results show that the saturated hydraulic conductivity of the vadose zone, the design rainfall intensity, the well diameter, and especially the thickness and permeability of sand filter have an impact on the depth of water in the well and, thus, on the number and the depth of designed wells. The research results may be helpful for decision-makers and engineers designing technical solutions supporting stormwater management.