An evaluation of enhanced geotextile layer in permeable pavement to improve stormwater infiltration and attenuation

This paper reports on an evaluation of the properties of a novel structure known as OASIS® which was designed at Coventry University as an enhancement of the commercially available geotextiles when incorporated in the permeable pavement system (PPS). The impact on the hydraulic behaviour of a PPS wa...

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Bibliographic Details
Published in:The international journal of pavement engineering 2014-11, Vol.15 (10), p.925-932
Main Authors: Nnadi, E.O., Coupe, S.J., Sañudo-Fontaneda, L.A., Rodriguez-Hernandez, J.
Format: Article
Language:English
Subjects:
Attenuation
Fluid dynamics
geotextile
Geotextiles
Hydraulics
Infiltration
infiltration behaviour
Pavements
Performance evaluation
Permeability
permeable paving
Polyphenylene sulfides
Rain
Rainfall
Stormwater
Stormwater management
SuDS
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Summary:This paper reports on an evaluation of the properties of a novel structure known as OASIS® which was designed at Coventry University as an enhancement of the commercially available geotextiles when incorporated in the permeable pavement system (PPS). The impact on the hydraulic behaviour of a PPS was analysed through the study of infiltration rate, throughout the PPS and time required to reach the steady-state stage behaviour of the water within the PPS, under extreme rainfall intensities of 100 mm/hr, 200 mm/hr and 400 mm/hr, corresponding to a 100-year return period rainfall over a duration of 15 min in different parts of the world. The result indicated that the novel structure provides an extra benefit when incorporated in PPSs, delaying peak flow of a rainfall event by retaining and storing great volumes of water within its structure. These additional benefits are especially important under extreme rainfall events.
ISSN:1029-8436
1477-268X
DOI:10.1080/10298436.2014.893325