Effects of flush slab supports on the hydraulic performance of curb inlets and an analysis of design equations
| dc.contributor.advisor | Hodges, Ben R. | en |
| dc.contributor.committeeMember | Barrett, Michael E | en |
| dc.creator | Schalla, Frank Edward | en |
| dc.date.accessioned | 2016-07-13T17:51:18Z | |
| dc.date.available | 2016-07-13T17:51:18Z | |
| dc.date.issued | 2016-05 | en |
| dc.date.submitted | May 2016 | |
| dc.date.updated | 2016-07-13T17:51:18Z | |
| dc.description.abstract | The new Texas Department of Transportation curb inlet uses 6 inch flush slab supports for the top slab of a curb inlet. HEC-22, which provides design equations used by TxDOT, states flush slab supports can reduce an on-grade inlet’s interception capacity by as much as 50%, yet does not provide any guidance on quantifying these effects. Full-scale physical modeling of the TxDOT curb inlet on-grade was performed to investigate the effects of flush slab supports on hydraulic performance. In addition, the modeled curb inlet is compared with HEC-22 and other curb inlet design equations. No measurable difference in interception capacity or ponded width was found between curb inlets with flush slab supports and without. For the 5 ft modeled curb inlet a combination of Guo and MacKenzie (2012) design equation and HEC-22 align best, yet neither align with every tested slope combination. HEC-22 design equations were found to over-predict the 15 ft modeled curb inlet by an average factor of 2.3:1. No other design equations were found to accurately predict hydraulic performance for the 15 ft modeled curb inlet. | en |
| dc.description.department | Civil, Architectural, and Environmental Engineering | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier | doi:10.15781/T2Z31NP1G | en |
| dc.identifier.uri | http://hdl.handle.net/2152/39077 | en |
| dc.language.iso | en | en |
| dc.subject | Curb inlet | en |
| dc.subject | Hydraulic performance | en |
| dc.subject | Hydraulic efficiency | en |
| dc.subject | Slab supports | en |
| dc.subject | Texas Department of Transportation | en |
| dc.title | Effects of flush slab supports on the hydraulic performance of curb inlets and an analysis of design equations | en |
| dc.type | Thesis | en |
| dc.type.material | text | en |
| thesis.degree.department | Civil, Architectural, and Environmental Engineering | en |
| thesis.degree.discipline | Environmental and water resources engineering | en |
| thesis.degree.grantor | The University of Texas at Austin | en |
| thesis.degree.level | Masters | en |
| thesis.degree.name | Master of Science in Engineering | en |