Abstract: Property economics favours the vertical development of cities but flow of groundwater can be affected by the use of underground space in them. In this paper we will study the impact of disturbances caused by underground structures (tunnels, basements of buildings, deep foundations, etc.) on the groundwater flow in aquifers. Impervious structures modify the groundwater flow pattern because the structure reduces totally or partially the aquifer section

Keywords: Barrier effect, foundation, groundwater, tunnels, piles.