Experimental research on backwater effects in semicircular arch bridges is reported. Both pressurized and free-surface flows at the bridge were investigated. Flows on a mobile bed in clear-water conditions were compared to those with a rigid bed. Methodologies for backwater computation by Yarnell, the US Geological Survey, the US Department of Transportation and the HEC-RAS model were compared with the experimental data. A simple expression for the head loss coefficient as a function of the obstructed bridge area is derived.
No takes yet. Share an insight, caveat, or question.
Vide et al. (2005) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: