Results 141 to 150 of about 507 (175)

Scour countermeasures around cylindrical pier by using downscaled W weir

Proceedings of the Institution of Civil Engineers - Water Management, 2023
Scour is a significant concern for bridge design/maintenance, and scour countermeasures are often used to prevent or reduce erosion caused by scouring. The W weir is a grade control structure serving many purposes, including scour control at bridge piers. A series of laboratory experimental runs was conducted, changing the size, height and location of
Ramu Karthik, Upendra Kumar, Abdul Karim Barbhuiya   +2 more
openaire   +1 more source

Estimating Equilibrium Scour Depth at Cylindrical Piers in Experimental Studies

Journal of Hydraulic Engineering, 2011
Peer ...
Simarro, Gonzalo, Fael, Cristina, Cardoso, Antonio H.   +2 more
openaire   +2 more sources

DRAG CHARACTERISTICS OF CYLINDRICAL PIERS WITH SLOTS AND/OR COLLARS IN SUBCRITICAL FLOW

ISH Journal of Hydraulic Engineering, 2010
ABSTRACT The flow field around a circular bridge pier is a complex three-dimensional phenomenon. Notwithstanding the considerable effort made in the study of local scour by many researchers, an understanding of the mechanics of local scour around a bridge pier remains far from complete.
K. Sreelash, B. V. Mudgal
openaire   +1 more source

Resistance of Cylindrical Piers in Open-Channel Flow

Journal of the Hydraulics Division, 1964
An experimental investigation of the variation of the resistance coefficient of cylindrical piers in a rectangular channel was conducted. The resistance coefficient was determined as a function of the Froude number, of the relative depth of the oncoming flow, and of the relative spacing of the piers.
openaire   +1 more source

Composite reliability model for local scour around cylindrical bridge piers

Canadian Journal of Civil Engineering, 2001
Bridge scour is an extremely complex phenomenon because of the random characteristics of sediment laden flow in close proximity to piers and abutments. This occurrence leads to high uncertainties and unavoidable risk in bridge pier and abutment design.
A Melih Yanmaz, Ozgur Cicekdag
openaire   +1 more source

Temporal variation of clear water scour at cylindrical bridge piers

Canadian Journal of Civil Engineering, 2006
Computation of temporal variation of clear water scour is important for the design of bridge pier footings. Previous studies indicated that very long flow duration was needed to achieve equilibrium scouring situations. However, the corresponding durations in the prototype conditions may yield considerably larger values than time-to-peak of the design ...
openaire   +1 more source

The mean characteristics of horseshoe vortex at a cylindrical pier

Journal of Hydraulic Research, 2005
J. Unger, W.H. Hager
openaire   +1 more source

The Scour Bridge Simulation around a Cylindrical Pier Using Flow-3D

2017
Scour simulation is a way to prevent a bridge against the possible major damages.  In this study, local scouring around a cylindrical pier in non-cohesive bed sediment was simulated with the aid of Flow-3D model capabilities. A rectangular channel with 0.4 m width and 1.0 m length and a vertical cylindrical pier with diameter of 0.03 m and height of 0 ...
Ghasemi, M, Soltani-Gerdefaramarzi, S
openaire   +1 more source

Discussion of “Resistance of Cylindrical Piers in Open-Channel Flow”

Journal of the Hydraulics Division, 1964
Ronald E. Nece, Richard D. Unrue, A. G. Mirajgaoker Mirajgaoker   +2 more
openaire   +2 more sources

Experimental Study of Transverse Waves Effects by Obstacles on Local Scour Around Cylindrical Pier Groups of Bridge

Iranian Journal of Science and Technology - Transactions of Civil Engineering, 2023
Mehdi Ghomeshi, Ghomeshi Mehdi
exaly