When new buildings are constructed, the built areas and their surroundings are generally sealed.
However, it is essential to control the infiltration of rainwater into building plots to avoid significant runoff and/or overloading the drainage system. Integrated Stormwater Management (ISWM) structures are regularly required. The correct sizing of these structures requires the consideration of the infiltration (or permeability) coefficient. This is determined by tests carried out in the field, which involve drilling shallow holes, saturating the horizon with water and then measuring the permeability using infiltrometers.
For this project, soil permeability tests were conducted as part of the planning application for the construction of several apartment buildings. The final objective was to be able to calculate the dimensions of the infiltration basin.
