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Issue 14 (2) 2015 pp. 195–207

Wojciech Szpakowski

Politechnika Gdańska

DISCHARGE Of CIRCULAR CULvERT WITH THE INLET UNSUBMERGED BY THE HEADWATER

Keywords: culvert, flow, regime, local structure
Abstract:

Culverts should safely convey storm water runoff through a roadway or railway system. Due to the possibility of flow obstruction by different obstacles, culverts are mostly designed to ensure free access of air at the inlet and outlet. The above-mentioned recommendation is included in the Polish existing regulations, published by the Minister of Transport and Maritime Affairs in 2000 [Rozporządzenie... 2000]. Hydraulic design of circular culverts according to FHWA (Federal Highway Administration) and USGS (United States Geological Survey) guidelines include more types of culvert flow in a hydraulic calculations, compared to polish regulations. In this article basic rules on the most popular unsubmerged inlet circular culverts design were presented. Culvert conveyance for different types of culvert entrance according to FHWA and USGS guidelines were also compared with polish regulations and experimental data. Results show that, using a polish regulations, the calculated discharge of culvert is slightly smaller in relation to FHWA and USGS formulas.

pub/14_2_195.pdf Full text available in in Adobe Acrobat format:
http://www.formatiocircumiectus.actapol.net/volume14/issue2/14_2_195.pdf

DOI: 10.15576/ASP.FC/2015.14.2.195

For citation:

MLA Szpakowski, Wojciech. "DISCHARGE Of CIRCULAR CULvERT WITH THE INLET UNSUBMERGED BY THE HEADWATER." Acta Sci.Pol. Form. Cir. 14.2 (2015): 195–207. http://dx.doi.org/10.15576/ASP.FC/2015.14.2.195
APA (2015). . Acta Sci.Pol. Form. Cir. 14 (2), 195–207 http://dx.doi.org/10.15576/ASP.FC/2015.14.2.195
ISO 690 SZPAKOWSKI, Wojciech. DISCHARGE Of CIRCULAR CULvERT WITH THE INLET UNSUBMERGED BY THE HEADWATER. Acta Sci.Pol. Form. Cir., 2015, 14.2: 195–207. http://dx.doi.org/10.15576/ASP.FC/2015.14.2.195
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Streszczenie w języku polskim:
http://www.formatiocircumiectus.actapol.net/tom14/zeszyt2/abstrakt-195.html