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Evaluating Efficiency Improvement of Deep-Cut Curb Inlets for Road-Bioretention Stripes
- Source :
- Water, Volume 12, Issue 12, Water, Vol 12, Iss 3368, p 3368 (2020)
- Publication Year :
- 2020
- Publisher :
- Multidisciplinary Digital Publishing Institute, 2020.
-
Abstract
- Making a deep cut on the curb inlet has been used in some sponge-city (SPC) projects for road-bioretention stripes to manage stormwater runoff since they were easily implemented in the field. The efficiencies of the deep-cut curb inlets in those projects were unknown for lacking equation to evaluate their efficiencies. Two kinds of retrofit scenarios are commonly used: (1) The curb-cut cases when the deep cut is made only over the width of the curb inlet<br />(2) the road-curb cut cases when both the curb inlet and a small part of the road surface have a deep cut. An updated two-dimensional flow simulation program, FullSWOF-ZG, was used to determine two important parameters in road curb inlet design: The 100% interception curb inlet lengths (LT) and the curb inlet efficiencies (Eci). Eight-hundred retrofit modeling cases were compared with the no-cut cases to quantify the efficiency improvement of the deep-cut curb inlets. The simulation results show both LT and Eci of the curb-cut cases do not improve much. This case study with limited combinations of longitudinal and cross slopes and inlet lengths demonstrated that Eci of the road-curb cut cases improves to a large extent so that they can be used in the SPC projects and other urban drainage projects to reduce the flooding potentials. A general equation used to design and evaluate the road-curb cut inlets can be developed based on more simulation cases with a wide range of input parameters in a future study.
- Subjects :
- geography
lcsh:TD201-500
geography.geographical_feature_category
lcsh:Hydraulic engineering
deep-cut curb inlet
Geography, Planning and Development
Flow (psychology)
Stormwater
two-dimensional overland flow
stormwater management
Aquatic Science
Inlet
Biochemistry
Bioretention
lcsh:Water supply for domestic and industrial purposes
road-bioretention
lcsh:TC1-978
Road surface
Environmental science
Drainage
Interception
Surface runoff
curb inlet efficiency
Water Science and Technology
Marine engineering
Subjects
Details
- Language :
- English
- ISSN :
- 20734441
- Database :
- OpenAIRE
- Journal :
- Water
- Accession number :
- edsair.doi.dedup.....f72d784fed22e6f4145cdf6546007f4c
- Full Text :
- https://doi.org/10.3390/w12123368