Results 301 to 310 of about 2,213,482 (351)

Reduction of scouring depth by using inclined piers

Canadian Journal of Civil Engineering, 2010
The aim of this experimental study is to examine the effect of inclination of dual bridge piers on scour depth under clear-water conditions for various uniform flow depths. Duration of 4 h was used in the experiments for each run. Scour depths were measured at four different points around the piers. The depths of local scour around inclined piers were
Zafer Bozkus, Murat Çeşme
openaire   +1 more source

Prediction of Maximum Scour Depth at Submarine Pipelines

Journal of Hydraulic Engineering, 1991
This paper examines and reviews published results relating to local scour around submarine pipelines. It highlights the limitations of existing methods for estimating scour depth at the pipeline. Based on experimental results, the study proposes an empirical function relating the amount of gap flow through the scour hole for given flow conditions. With
openaire   +1 more source

A novel boosting ensemble committee-based model for local scour depth around non-uniformly spaced pile groups

Engineering computations, 2021
I. Ahmadianfar, M. Jamei, Masoud Karbasi, A. Sharafati, Bahram Gharabaghi   +4 more
semanticscholar   +1 more source

More reliable predictions of clear-water scour depth at pile groups by robust artificial intelligence techniques while preserving physical consistency

Soft Computing - A Fusion of Foundations, Methodologies and Applications, 2021
M. Najafzadeh, G. Oliveto
semanticscholar   +1 more source

Local scour depth at a bridge pier protected by a collar in steady and unsteady flow

, 2019
Scour hole development around a circular bridge pier protected by a collar under steady and unsteady flow conditions is thoroughly investigated.
Mojtaba Karimaei Tabarestani, A. Zarrati
semanticscholar   +1 more source

Scour Evaluation Program for Toe-Down Depth Assessment

Building Partnerships, 2000
An analysis procedure is presented to evaluate the bed scour potential along unlined drainage ways and watercourses for the purpose of determining toe-down depths for hydraulic structures. The stability and safety of drainage structures along watercourses are a major concern for many managing agencies as this involves potential lawsuits and costly ...
openaire   +1 more source

Prediction of Maximum Scour Depth near Spur Dikes in Uniform Bed Sediment Using Stacked Generalization Ensemble Tree-Based Frameworks

, 2021
Manish Pandey, M. Jamei, Masoud Karbasi, I. Ahmadianfar, X. Chu   +4 more
semanticscholar   +1 more source

Scour Depth at Bridges: Method Including Soil Properties. II: Time Rate of Scour Prediction

Journal of Geotechnical and Geoenvironmental Engineering, 2015
Abstract Scour of the soil by flowing water around bridge supports is the number one reason for bridge collapse. Predicting the depth of the scour hole is an integral part of bridge foundation design, as it impacts the depth of the piles. Indeed, the scour depth must be ignored in the vertical and horizontal resistance of the piles. This paper presents
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Efficacy of Marine Electrical Resistivity Surveys to Determine Maximum Scour Depth and Scour Infill

Transportation Research Record: Journal of the Transportation Research Board
The maximum depth of bridge scour typically occurs during peak flood conditions when it is too dangerous to collect measurements. Often, the maximum depth is obscured by additional redeposited sediment. Applied geophysical methods are commonly used to detect the depth of scour infill and estimate maximum scour depth.
Andrew Gombac, Stacey Kulesza, Abed Almikati   +2 more
openaire   +1 more source

Modelling the scour depth near the bridge pier

Вычислительные технологии
Представлено численное моделирование местного размыва грунта возле мостовой опоры, вызванного речным потоком. Использованы трехмерная гидродинамическая модель с параметризацией турбулентного обмена и модель переноса осадков. В результате моделирования установлено, что воронка размыва стабилизируется.
openaire   +1 more source