Investigating scouring phenomenon in complementary channels with screen plates

Investigating scouring phenomenon in complementary channels with screen plates | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Investigating scouring phenomenon in complementary channels with screen plates Rasoul Daneshfaraz, Hadi Nezafat, Hamidreza Abbaszadeh, Parisa Ebadzadeh This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3844422/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Recognizing the significance of scouring and implementing effective measures to mitigate and control its impact is paramount. This research delves into the examination of scouring downstream of hydraulic structures, employing screen plates as a pivotal component. To serve as energy absorbers, screen plates with varying aperture ratios of 40% and 50% have been strategically positioned at a distance of 1.5 m from the sluice gate. The primary focus is on evaluating the impact of screens on the maximum depth and length of the scour hole. Subsequently, a moving bed comprising particles of three distinct sizes (1.8, 2.6, and 5.2 mm) was selected. The outcomes of the study reveal that key parameters, including the thickness and opening ratio of the screens and their placement distance from the gate, significantly influence scouring. Notably, the maximum and minimum depths and lengths of the scour holes were observed in screens with opening ratios of 40% and 50%, respectively. Consequently, an increase in the opening ratio and thickness of the screens correlates with a reduction in the dimensions of scour holes, suggesting potential strategies for enhancing bridge resilience against scouring effects. Screen Plates Hydraulic Jump Scouring depth Opening ratio Particle size Full Text Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-3844422","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":266991927,"identity":"76784d96-4b6b-4d67-a018-3f9cb221fcb2","order_by":0,"name":"Rasoul Daneshfaraz","email":"data:image/png;base64,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","orcid":"https://orcid.org/0000-0003-1012-8342","institution":"University of Maragheh","correspondingAuthor":true,"prefix":"","firstName":"Rasoul","middleName":"","lastName":"Daneshfaraz","suffix":""},{"id":266991928,"identity":"73e298cd-db37-4114-bd08-8081eee7882d","order_by":1,"name":"Hadi Nezafat","email":"","orcid":"","institution":"University of Maragheh","correspondingAuthor":false,"prefix":"","firstName":"Hadi","middleName":"","lastName":"Nezafat","suffix":""},{"id":266991929,"identity":"53d7721a-9df0-4e68-a2fa-cc8e5355aaa9","order_by":2,"name":"Hamidreza Abbaszadeh","email":"","orcid":"","institution":"University of Tabriz","correspondingAuthor":false,"prefix":"","firstName":"Hamidreza","middleName":"","lastName":"Abbaszadeh","suffix":""},{"id":266991930,"identity":"a09ec522-f01f-4558-b436-7df880238550","order_by":3,"name":"Parisa Ebadzadeh","email":"","orcid":"","institution":"University of Maragheh","correspondingAuthor":false,"prefix":"","firstName":"Parisa","middleName":"","lastName":"Ebadzadeh","suffix":""}],"badges":[],"createdAt":"2024-01-08 03:40:46","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-3844422/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-3844422/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":50712439,"identity":"d325e7b6-a646-4150-9713-a9991d4e8a04","added_by":"auto","created_at":"2024-02-06 07:58:24","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":638788,"visible":true,"origin":"","legend":"","description":"","filename":"manuscript12.pdf","url":"https://assets-eu.researchsquare.com/files/rs-3844422/v1_covered_c166608e-3458-413c-9910-d794380d5a63.pdf"}],"financialInterests":"","formattedTitle":"Investigating scouring phenomenon in complementary channels with screen plates","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Screen Plates, Hydraulic Jump, Scouring depth, Opening ratio, Particle size","lastPublishedDoi":"10.21203/rs.3.rs-3844422/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-3844422/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eRecognizing the significance of scouring and implementing effective measures to mitigate and control its impact is paramount. This research delves into the examination of scouring downstream of hydraulic structures, employing screen plates as a pivotal component. To serve as energy absorbers, screen plates with varying aperture ratios of 40% and 50% have been strategically positioned at a distance of 1.5 m from the sluice gate. The primary focus is on evaluating the impact of screens on the maximum depth and length of the scour hole. Subsequently, a moving bed comprising particles of three distinct sizes (1.8, 2.6, and 5.2 mm) was selected. The outcomes of the study reveal that key parameters, including the thickness and opening ratio of the screens and their placement distance from the gate, significantly influence scouring. Notably, the maximum and minimum depths and lengths of the scour holes were observed in screens with opening ratios of 40% and 50%, respectively. 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