<abstract xmlns="http://www.w3.org/1999/xhtml">

The permeable pavement is a compensatory drainage technique for urban waters that aims to control runoff and to ensure ideal hydrological conditions. This work had as main objectives to evaluate the infiltration capacity of a permeable pavement (PP) at real scale, through analytical and numerical modeling. It relies on water infiltration experiments and related modeling for the hydrodynamic characterization of the coating layer (saturated hydraulic conductivity, <italic>Ks</italic>, and sorptivity, <italic>S</italic>). A large panel of analytical and numerical models was considered, and several estimates were obtained. Then, the criteria for the evaluation of the maintenance requirement of the permeable pavements were computed for all the <italic>Ks</italic>-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 <italic>Ks</italic>-estimates depended on the considered model and led to contrasting results in terms of classification. For 8 of the 9 models, the value of the <italic>Ks</italic>-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 permeable pavement as “Group D”, i.e., soils with low permeability. Those results show the importance of the selection of characterization methods regarding the assessment of the hydrological classification of permeable pavements.
</abstract>

The permeable pavement is a compensatory drainage technique for urban waters that aims to control runoff and to ensure ideal hydrological conditions. This work had as main objectives to evaluate the infiltration capacity of a permeable pavement (PP) at real scale, through analytical and numerical modeling. It relies on water infiltration experiments and related modeling for the hydrodynamic characterization of the coating layer (saturated hydraulic conductivity, Ks, and sorptivity, S). A large panel of analytical and numerical models was considered, and several estimates were obtained. Then, the criteria for the evaluation of the maintenance requirement of the permeable pavements 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. For 8 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 permeable pavement as “Group D”, i.e., soils with low permeability. Those results show the importance of the selection of characterization methods regarding the assessment of the hydrological classification of permeable pavements.

Effect of the choice of different methods on the permeable pavement hydraulic characterization and hydrological classification

Department of Transport Engineering and Geodesy

Univ Lyon, Université Claude Bernard Lyon 1

Department of Civil and Environmental Engineering

Journal of Hydrology and Hydromechanics

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The permeable pavement is a compensatory drainage technique for urban waters that aims to control runoff and to ensure ideal hydrological conditions. This work...

Effect of the choice of different methods on the permeable pavement hydraulic characterization and hydrological classification

Published Online: Aug 10, 2021

Page range: 332 - 346

Received: Apr 03, 2021

Accepted: Jun 30, 2021

DOI: https://doi.org/10.2478/johh-2021-0018

Keywords
Water infiltration techniques, Hydraulic conductivity, Compensatory techniques, Analytical methods, Numerical inversion, Hydrodynamic indicators

© 2021 Larissa Virgínia da Silva Ribas et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Effect of the choice of different methods on the permeable pavement hydraulic characterization and hydrological classification

Published Online: Aug 10, 2021

Page range: 332 - 346

Received: Apr 03, 2021

Accepted: Jun 30, 2021

DOI: https://doi.org/10.2478/johh-2021-0018

KeywordsWater infiltration techniques, Hydraulic conductivity, Compensatory techniques, Analytical methods, Numerical inversion, Hydrodynamic indicators

© 2021 Larissa Virgínia da Silva Ribas et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Water infiltration techniques, Hydraulic conductivity, Compensatory techniques, Analytical methods, Numerical inversion, Hydrodynamic indicators