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http://dx.doi.org/10.15683/kosdi.2015.11.3.318

Numerical Analysis of Infiltration in Permeable Pavement System considering Unsaturated Characteristics  

Kim, Seungbae (School of Urban, Architecture and Civil Engineering, Pusan National University)
Ahn, Jaehun (School of Urban, Architecture and Civil Engineering, Pusan National University)
Teodosio, Bertrand (School of Urban, Architecture and Civil Engineering, Pusan National University)
Shin, Hyunjun (Department of Architecture, Hannam University)
Publication Information
Journal of the Society of Disaster Information / v.11, no.3, 2015 , pp. 318-328 More about this Journal
Abstract
Effective urban flood reduction and restoration of natural water cycle at present include the application of permeable pavements. The application of permeable pavement addresses urban water cycle and disaster related events which gained attention internationally. However, few researches have been conducted to investigate unsaturated behavior and evaluate the water characteristics curves of these type of pavement materials most especially in the unsaturated state. In this study, first the saturated permeability and the soil-water characteristics curve of a pervious concrete are evaluated based on laboratory tests, and, based on experimental results, the infiltration of permeable pavement system is numerically modelled. In the soil-water characteristics curve of a pervious concrete, the volumetric water content drops very steeply after the air entry value with increasing matric suction. From the finite element analyses, the performance of the permeable pavement when compared to impermeable pavement, confirmed that the whole system effectively delayed and reduced runoff.
Keywords
Permeable Pavement; Pervious Concrete; Infiltration Green-Ampt; Numerical Analysis;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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