Results 71 to 80 of about 5,903,801 (203)

Assessing equilibrium clear water scour around single cylindrical piers [PDF]

, 2010
The objective of this research is to investigate the pertinence of existing approaches to assess the onset of the equilibrium phase of scour at single cylindrical piers in experimental studies.
Lança, Rui, Fael, Cristina, Cardoso, António   +2 more
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Pier shape and alignment effects on local scour [PDF]

, 2014
Bridge piers may have several horizontal shapes and be built with different alignment angles towards the flow direction. The effects of pier shape and alignment have been studied by only a few researchers, the most well-known being Laursen and Toch [1956]
Fael, Cristina, Lança, Rui, Cardoso, António   +2 more
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Assessment of the impacts of local scour at bridge piers on the stability of ice jams – An experimental study

Hydrology Research
Local scour at the bottom of bridge piers further affects the stability of ice jams. In this study, the experimental study on the influence of local scour on the stability of ice jams at the pier was carried out, and the test conditions of different ...
Zhixing Hou, Zhipeng Zhong, Jun Wang
doaj   +1 more source

Clear-water scour at single piers and pile groups [PDF]

, 2013
The major damage to bridges at river crossings occurs during floods. Damage is caused for various reasons, one of the main reasons being the riverbed scour at bridge foundations.
Lança, Rui Miguel Madeira
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Evaluation of empirical equations for scour downstream grade-control weirs

, 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, Lu Wang, Bruce W. Melville, Dawei Guan, Guan, D, Melville, Bruce   +5 more
core   +1 more source

Sacrificial piles as a countermeasure against local scour around underwater pipelines

Water Science and Engineering
Local scour around pipelines crossing rivers or in marine environments is a significant concern. It can lead to failure of the pipelines resulting in environmental side effects and economic losses.
Forough Raeisi, Seyed Mohammad Ali Zomorodian, Masih Zolghadr, Hazi Mohammad Azamathulla   +3 more
doaj   +1 more source

Numerical Investigation of Local Scour Around Bridge Pile-Group Foundations Under Steady Flows

Infrastructures
Local scour around pile-group foundations is a predominant cause of hydraulic instability in bridge engineering. This study employs a fully coupled three-dimensional computational fluid dynamics model to investigate local scour around a 2 × 2 inline pile
Wentao Li, Xiangdong Wang, Zhixun Wang, Qianmi Yu, Peng Huang, Yilin Yang, Jinzhao Li   +6 more
doaj   +1 more source

Analytical study of local scour

, 1962
CER62FMC26. ; Includes bibliographical references (page 20). ; Prepared for Bureau of Public Roads under contract CPR 11-7866. ; April 1962.
Yevjevich, Vujica M., author, Chang, Fred M., author, Civil Engineering Section, Colorado State University, publisher   +2 more
openaire   +1 more source

Local Scour at Straight Guide Banks in Plain Rivers

The local scour at abutments, elliptical and straight guide banks in plain rivers was studied. The flow pattern and the scour hole parameters at abutments, elliptical and straight guide banks are different.
Neilands, Roberts, Klīve, Guntis, Gjunsburgs, Boriss   +2 more
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Effect of spacing and skew-angle on clear-water scour at pier alignments [PDF]

, 2012
Pier alignments, defined as single-row pier groups, displayed normal to main bridges’ axes, are frequently used to support bridge decks. Different alignments configurations, characterized by different combinations of piers’ shape and spacing and skew ...
Lança, Rui, Fael, Cristina, Maia, Rodrigo, Cardoso, António, Pêgo, João   +4 more
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