Results 21 to 30 of about 2,467 (253)

Maximum Abutment Scour Depth in Cohesive Soils [PDF]

open access: yesScour and Erosion, 2010
Most conventional methods to predict the depth of abutment scour were developed with flume test results using cohesionless soils, and those methods have been used to the abutment scour depth prediction in cohesive soils. Generally floodplains where most abutments are located are composed of less erodible soils such as cohesive soils.
Jae Oh, Seung   +3 more
openaire   +2 more sources

The Effects of Permeable, Impermeable and Bandal-like Spur-dike Angel On Geometric Dimensions of Scouring In Submerged Conditions [PDF]

open access: yesعلوم و مهندسی آبیاری, 2017
The purpose of this study is to compare the scouring hole geometric dimensions for three kinds of spur-dike: permeable, impermeable and bandal-like for submerged conditions by conducting a set of experimental tests.
Fatemeh Jarah Zade   +2 more
doaj   +1 more source

Preliminary comparison of scour depth estimation methods [PDF]

open access: yes, 2022
Bridge scour is a major cause of bridge collapse worldwide. Various approaches are available to estimate levels of scouring due to hydraulic loading.
Gavriel, Gianna   +2 more
core   +1 more source

Prediction of maximum scour depth in river bends by the Stacking model

open access: yesJournal of Hydroinformatics, 2023
Abstract The accurate prediction of maximum erosion depth in riverbeds is crucial for early protection of bank slopes. In this study, K-means clustering analysis was used for outlier identification and feature selection, resulting in Plan 1 with six influential features.
Junfeng Chen   +3 more
openaire   +2 more sources

Effect of bridge pier diameter on maximum depth of scour impacts on the environment [PDF]

open access: yesSN Applied Sciences, 2020
This study uses a physical experimental model to investigate the scale effect of cylindrical bridge piers on local scour. Non-dimensional public relations are developed after determining the effective parameters. Experiments are carried out to estimate the maximum scour depth around cylindrical piers with 10, 20, 30, 40, 60 and 100 mm in diameter in a ...
Narges Raeisi, Mehdi Ghomeshi
openaire   +1 more source

Evaluation of empirical equations for scour downstream grade-control weirs [PDF]

open access: yes, 2018
The grade control structures are frequently adopted in the Mountain Rivers and streams to prevent severe bed degradation and channel incision. These structures are constructed as a staircase-like sequence of transverse weirs or bed sills.
Wang, L   +5 more
core   +1 more source

Evolution features of riverbeds near underwater crossing line pipes: An experimental study

open access: yesNatural Gas Industry B, 2020
It is of important significance to study the evolution law of the riverbed near underwater crossing line pipes for ensuring the safe operation of oil and gas pipelines and reducing the risk of damage by water flood disasters.
Qian Yang   +3 more
doaj   +1 more source

Clear-water scour depth below underwater pipelines [PDF]

open access: yes, 2007
The paper presents (1) a semi-theoretical model for the computation of maximum clear-water scour depth below underwater pipelines in uniform sediments under steady flow and (2) an experimental investigation on the influence of upward seepage on clear ...
Dey, Subhasish, Singh, Navneet P.
core   +1 more source

Scour depth downstream sharp-crested weir [PDF]

open access: yes, 2023
Weirs are hydraulic obstructions constructed across an open-channel flow causing a rise in water which is useful to convert water to the channels upstream as well as using these structures as a measuring device.
Noor I. Khattab   +2 more
core   +1 more source

Scaling and Spatial Analysis of Infiltration at the Regional Scale (Case Study: the Shahrekord Watershed) [PDF]

open access: yesمهندسی منابع آب, 2014
Some Experiments were conducted in water research center, for five specific discharge and four tail water depth to investigate effects of parameters like specific discharge and tail water depth.
gh. a, m.r k, e. s
doaj  

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