Effects of Bridge Pier Location and Debris Accumulation on Equilibrium Morphology

2020 ◽  
Author(s):  
Simone Pagliara ◽  
Michele Palermo
Keyword(s):  
Bridge Pier ◽  
Debris Accumulation ◽  
Equilibrium Morphology

Bridge Pier Scour with Debris Accumulation

1992 ◽  
Vol 118 (9) ◽  
pp. 1306-1310 ◽  
Author(s):  
Bruce W. Melville ◽  
D. M. Dongol
Keyword(s):  
Bridge Pier ◽  
Pier Scour ◽  
Debris Accumulation ◽  
Bridge Pier Scour

Collar performance in bridge pier scour with debris accumulation

2021 ◽  
Author(s):  
Hossein Hamidifar ◽  
Seyed Mohammad Bagher Shahabi-Haghighi ◽  
Yee Meng Chiew
Keyword(s):  
Bridge Pier ◽  
Pier Scour ◽  
Debris Accumulation ◽  
Bridge Pier Scour

Empirical Formulas to Predict the Maximum Scour Depth With ‎Debris Accumulation Around A Single Cylindrical Bridge Pier: An ‎Experimental Study

2020 ◽  
Vol 38 (12A) ◽  
pp. 1790-1800
Author(s):  
Mahmoud S. Al-Khafaji ◽  
Aysar T. Al-Awadi
Keyword(s):  
Experimental Study ◽  
Woody Debris ◽  
Bridge Pier ◽  
Coefficient Of Determination ◽  
Scour Depth ◽  
Empirical Formulas ◽  
Flow Area ◽  
Debris Accumulation ◽  
Modification Factor ◽  
Length Width

The probability of debris accumulation near bridge piers during the heavy storm and river flood convert the ‎hydraulic action of flow and increase the scour depth due to the reduction of flow area and the increase in ‎velocity of flow. In this paper, the effects of debris accumulation length, width and submerged depth on ‎scour depth near bridge pier were investigated. An experimental study for three groups of woody debris ‎accumulation was conducted under clear water condition to investigate the effects on maximum scour depth. ‎The results showed that the increase of blocked area of debris ‎to 27% increases the scour depth by approximately 140%. Furthermore, two empirical exponential formulas was proposed to predict the effect of ‎debris on the maximum scour depth and the modification factor required for single pier. Well agreement ‎was obtained for both derived formulas with coefficient of determination (R2) of 0.96. ‎

scholarly journals Effect of debris accumulation on scour evolution at bridge pier in bank proximity

2021 ◽  
Vol 69 (1) ◽  
pp. 108-118
Author(s):  
Michele Palermo ◽  
Simone Pagliara ◽  
Deep Roy
Keyword(s):  
Bridge Piers ◽  
Scour Depth ◽  
Structural Failure ◽  
Clear Water ◽  
River Bank ◽  
Debris Accumulation ◽  
Equilibrium Morphology ◽  
Satisfactory Prediction ◽  
Prediction Capability ◽  
Water Depths

AbstractLarge debris transported by flood affects scour features at bridge piers and increases the risks of structural failure. Geometric characteristics of the debris and the relative position of the pier with respect to the river bank are important parameters for the scour process. The interaction between the water flow and debris accumulation increases the shear stress, turbulence and consequently enhances the scour depth at the pier. This paper aims at analyzing such effects on scour evolution at bridge piers. To this end, two series of tests were carried out under clear water condition with different debris geometries and percentage blockage ratios. Experimental evidences showed that the pier position only influences scour evolution and equilibrium morphology for low water depths. Conversely, its effect becomes negligible for scour at bridge piers with debris accumulation and higher water depths. Useful practical relationships have been derived, with satisfactory prediction capability of the scour evolution for all the tested configurations.

A study on the effects of debris accumulation at sacrificial piles on bridge pier scour: II. Empirical formula

2015 ◽  
Vol 20 (4) ◽  
pp. 1552-1557 ◽  
Author(s):  
Jae Hyeon Park ◽  
Chamroeun Sok ◽  
Chang Kun Park ◽  
Young Do Kim
Keyword(s):  
Empirical Formula ◽  
Bridge Pier ◽  
Pier Scour ◽  
Debris Accumulation ◽  
Bridge Pier Scour
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