Scour around the piers of Naderi and Fifth Bridges in Ahvaz is measured and the results are compared to the physical model results. This indicates that for the piers of less than 30 mm in diameter, the relative
Geravandi, E., [7], investigate the impact of armor dike simple and L-shape in upstream and downstream intake of the hydraulic flow of the Kheirabad River to help physical model. The result shows that the best angle of deviation for maximum flow enters the Intake angle of 60°. Monadi...
hydrology Technical Note Quantification of the Effect of Bridge Pier Encasement on Headwater Elevation Using HEC-RAS Abhijit Sharma Subedi, Suresh Sharma *, Anwarul Islam and Niraj Lamichhane Civil and Environmental Engineering, Youngstown State University, One University Plaza, Youngstown, OH 44555, ...
[16] also reported that the discharge value, type of flow, pier shape coefficients, and geometrical boundaries of the cross-section at the bridge site could be the main reasons for backwater rise on the bridge upstream. Although it has been clear to the scientists for several years that the...
It also decreased 70% of the maximum depth of the scour hole in comparison with when the collar was not implemented. In the positions of 60° and 120°, the thickness parameter has no appreciable effect on scouring, and the best level of collar in this positions is same as the pier ...
The equilibrium scour depth at uniform single bridge piers depends on a large number of variables, including the pier horizontal cross-section shape and its alignment angle towards the flow direction. The influence of these variables has been studied by only a few researchers, mostly, on the ...
of scour around bridge piers.In this paper an attempt has been made to carry out a detailed study of angular displacement on scour.A constant diameter bridge pier of circular shape has been tested in a meandering channel bend with bend angle as 800.The test bed was prepared by using ...
Association for Hydro-environment Engineering and Research, Asia Pacific DivisionA group of non-submerged sacrificial piles placed in front of a bridge pier have a propensity to trap a significant volume of floating debris during river floods, which affects their effectiveness as a scour countermeasure...
Applied sciences, Earth sciences, Blockage, Bridge, Clear water, Open channel, Pier, ScourOur understanding of the scouring process and the current empirical design equations is based on laboratory data that may have exceeded acceptable blockage. Previous literature indicates that scour may only be ...
Scour interferenceSpacing ratioThe behavior of local scour under different factors is a paramount topic for designing safe bridges and reduce the massive loss in human lives and economy resulted from bridges collapse. This research provides an experimental investigation on the impact of pier proximity ...