Larissa Virgínia da Silva Ribas1, Artur Paiva Coutinho2, Laurent Lassabatere3 *, Severino Martins dos Santos Neto2, Suzana Maria Gico Lima Montenegro4, Ana Emília Carvalho de Gusmão da Cunha Rabelo2,
Rafael Angulo Jaramillo3, Alfredo Ribeiro Neto4
1 Department of Transport Engineering and Geodesy, Federal University of Bahia, BA, Brazil.
2Agreste Academic Center, 2 – Federal University of Pernambuco, PE, Brazil.
3 Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR5023 LEHNA, F-69518, Vaulx-en-Velin, France.
4 Department of Civil and Environmental Engineering, Federal University of Pernambuco, Recife, Brazil.
* Corresponding author. E-mail: laurent.lassabatere@entpe.fr .
Abstract: The permeable pavement is a compensatory drainage technique for urban waters that aims to control runoffand to ensure ideal hydrological conditions. This work had as main objectives to evaluate the infiltration capacity of apermeable pavement (PP) at real scale, through analytical and numerical modeling. It relies on water infiltrationexperiments and related modeling for the hydrodynamic characterization of the coating layer (saturated hydraulicconductivity, Ks, and sorptivity, S). A large panel of analytical and numerical models was considered, and severalestimates were obtained. Then, the criteria for the evaluation of the maintenance requirement of the permeablepavements were computed for all the Ks-estimates considering the NCRS standards (assessment of permeability levels).The results indicated nice fits and accurate estimates for both the saturated hydraulic conductivity and the sorptivity.However, the Ks-estimates depended on the considered model and led to contrasting results in terms of classification. For8 of the 9 models, the value of the Ks-estimate leads to the classification of “Group A” of the NCRS soil classification,meaning a very permeable material. In contrasts, the last method (numerical inverse modeling) classified the permeablepavement as “Group D”, i.e., soils with low permeability. Those results show the importance of the selection ofcharacterization methods regarding the assessment of the hydrological classification of permeable pavements.Keywords: Water infiltration techniques; Hydraulic conductivity; Compensatory techniques; Analytical methods;Numerical inversion; Hydrodynamic indicators
Keywords: Water infiltration techniques; Hydraulic conductivity; Compensatory techniques; Analytical methods;Numerical inversion; Hydrodynamic indicators.
