Results 11 to 20 of about 507 (175)

PHOTOGRAMMETRIC MONITORING OF UNDER WATER EROSION IN THE VICINITY OF CYLINDRICAL BRIDGE PIERS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
Within this work the three dimensional development of a scour around a cylindrical bridge pier has been investigated experimentally. The erosion process has been surveyed in short time intervals using a photogrammetric approach.
K. Eder   +4 more
doaj   +4 more sources

Clear-Water Scour at Comparatively Large Cylindrical Piers [PDF]

open access: yesJournal of Hydraulic Engineering, 2013
AbstractNew long-duration clear-water scour data were collected at single cylindrical piers with the objective of investigating the effect of sediment coarseness, Dp/D50 (Dp = pier diameter; D50 = median grain size) on the equilibrium scour depth and improving the scour depth time evolution modeling by making use of the exponential function suggested ...
Lança, Rui   +4 more
openaire   +3 more sources

Velocity and Turbulent flow field at around the cylindrical Pier

open access: yesInternational Journal of Engineering and Advanced Technology, 2020
This experimental study shows the velocity and turbulence field at vicinity of cylindrical pier with scour hole under clear water condition. The three dimensional velocity data were obtained at 5 cm, 10 cm, 20 cm and 30 cm from the pier with use of Acoustic Doppler Velocimeter at 360 degrees around the pier with 30-degree interval.
R. Karthik, U. Kumar, A.K. Barbhuiya
openaire   +1 more source

Impacts of bridge-pier types on balancing ice jams: an experimental study

open access: yesShui kexue jinzhan, 2018
The presence of ice jam increases the possibility of upstream water level, which can easily trigger ice jam flooding. Bridge pier types can significantly influence backwater heights.
WANG Jun   +3 more
doaj   +1 more source

Experimental and numerical investigation the effect of pier position on local scouring around bridge pier at a 90° convergent bend [PDF]

open access: yesJournal of Hydraulic Structures, 2020
Natural rivers have several bends along the path that are not generally uniform and some are convergent. Installing the bridge piers in river convergent bends may result in complicated flow and erosion patterns around the bridge piers.
Mousa Rasaei   +2 more
doaj   +1 more source

Pier scouring reduction using a Strip Guide Flow Panel device

open access: yesRUDN Journal of Engineering Research, 2019
A set of laboratory experiments were conducted to study the effect of using a Strip Guide Flow Panel device to reduce scour process effects around a bridge pier.
Ihsan A. Abdulhussein   +2 more
doaj   +1 more source

Experimental Investigation of the Effect of Diameter and Placement Level of Lattice Collars on Scour Reduction around Bridge Pier [PDF]

open access: yesعلوم و مهندسی آبیاری, 2016
In this research, the effect of lattice collar on reducing scour around the bridge pier was experimentally studied. A series of experiments were conducted in a flume with length of 6m and width of 0.6m. For evaluation of scouring phenomenon a cylindrical
Mohammad Hemati   +2 more
doaj   +1 more source

Scour depth at inclined bridge piers along a straight path: A laboratory study

open access: yesEngineering Science and Technology, an International Journal, 2017
Scouring threatens the stability of hydraulic structures in different ways, mostly through erosion. This study aims to examine the effect of bridge pier inclination angle on the scouring process by conducting tests along a straight channel in a Plexiglas
Negin Karimi   +2 more
doaj   +1 more source

Investigating the effect of oblique bed sill on bridge pier scouring with circular cross-section [PDF]

open access: yesمهندسی منابع آب, 2020
Local scouring around the pier is one of the main reasons for the instability of the bridges. Providing appropriate methods for predicting and controlling scour depth is one of the important issues that have been considered.
saeed gohari, MARZIEH REZAEI
doaj  

Local Scour Around The Cylindrical Bridge Pier With Two Sizes of Bed Material [PDF]

open access: yesعلوم و مهندسی آبیاری, 2015
Local scour around the bridge piers results from the flow impact with bridge piers and it’s streamline separation. The scour hole around the bridge piers depend on the hydraulic characteristics of the flow, the specifications of the fluid, the pier’s ...
Narges Raeisi, Mehdi Ghomeshi
doaj   +1 more source

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