Bearing characteristics and influence mechanism of lightweight and high-strength arch in deep roadway

Bearing characteristics and influence mechanism of lightweight and high-strength arch in deep roadway | 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 Article Bearing characteristics and influence mechanism of lightweight and high-strength arch in deep roadway Guochuan Zhang, Zigang Li, Qi Wang, Tingwei Zhang, Lu Jiang, Yubing Huang This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8803611/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 9 You are reading this latest preprint version Abstract Deep underground engineering often faces complex conditions such as high stress and extremely soft rock. Due to the problems of heavy self-weight, insufficient bearing capacity and low construction efficiency, the traditional steel arch cannot meet the requirements of safe and efficient construction of underground engineering in deep and complex conditions. Based on this, a new lightweight high-strength arch support technology is developed, and full-scale mechanical tests of lightweight high-strength arch and U36 arch are carried out. The test results show that compared with U36 arch, the initial sliding resistance and ultimate bearing capacity of lightweight high-strength arch are increased by 37.6% and 20.1% respectively with 33.3% weight reduction. The new support can provide higher support strength for the surrounding rock of deep roadway while reducing the construction strength. On this basis, a full-scale numerical model of the lightweight high-strength arch is established. The influence mechanism of the lightweight high-strength arch bearing performance is clarified. The bearing capacity calculation formula of the lightweight high-strength arch is established. Taking the typical deep high stress mine as the engineering background, the field application of lightweight high-strength arch is carried out. Physical sciences/Engineering Physical sciences/Materials science lightweight and high-strength characteristics arch support bearing capacity field application Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 1 posted Editorial decision: Revision requested 23 Mar, 2026 Reviews received at journal 13 Mar, 2026 Reviewers agreed at journal 08 Mar, 2026 Reviews received at journal 06 Mar, 2026 Reviewers agreed at journal 24 Feb, 2026 Reviewers invited by journal 24 Feb, 2026 Editor assigned by journal 24 Feb, 2026 Submission checks completed at journal 15 Feb, 2026 First submitted to journal 15 Feb, 2026 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. 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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-8803611","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":596427929,"identity":"2ce2800b-90f8-41a8-ab78-2e293ba6ed8e","order_by":0,"name":"Guochuan Zhang","email":"","orcid":"","institution":"Pingdingshan Tianan Coal Mining Co., Ltd.","correspondingAuthor":false,"prefix":"","firstName":"Guochuan","middleName":"","lastName":"Zhang","suffix":""},{"id":596427930,"identity":"8a99b331-fbc9-418e-b2ba-48ff579ce366","order_by":1,"name":"Zigang Li","email":"","orcid":"","institution":"Baoshan Iron and Steel Co., Ltd.","correspondingAuthor":false,"prefix":"","firstName":"Zigang","middleName":"","lastName":"Li","suffix":""},{"id":596427931,"identity":"9fb9dc16-3c34-4c16-ab2a-5188f54cc627","order_by":2,"name":"Qi Wang","email":"","orcid":"","institution":"China University of Mining and Technology-Beijing","correspondingAuthor":false,"prefix":"","firstName":"Qi","middleName":"","lastName":"Wang","suffix":""},{"id":596427933,"identity":"70267afa-dc91-4f00-ae6e-8295ef5b28a2","order_by":3,"name":"Tingwei Zhang","email":"","orcid":"","institution":"Pingdingshan Tianan Coal Mining Co., Ltd.","correspondingAuthor":false,"prefix":"","firstName":"Tingwei","middleName":"","lastName":"Zhang","suffix":""},{"id":596427935,"identity":"93acca2a-d1bd-454c-9971-214e3150a9aa","order_by":4,"name":"Lu Jiang","email":"","orcid":"","institution":"Baoshan Iron and Steel Co., Ltd.","correspondingAuthor":false,"prefix":"","firstName":"Lu","middleName":"","lastName":"Jiang","suffix":""},{"id":596427937,"identity":"e9f863ef-2540-42a3-914e-7528387b5fc7","order_by":5,"name":"Yubing Huang","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAvklEQVRIiWNgGAWjYBACfvbmgw8+/LCxs29vIFKLZM+xZMOZPWnJBjwHiNRicCNHTZqH7TDjBokEYrWcOcNszMNzmNlc8vHGGww1NtGEHXa89+DDORbpfJaz04otGI6l5TYQ0sJ35lyywRsea2aG2zlmEowNhwlrYbgBVMnDxszYcPMMkVoEgFokedicGTfc4CFSCzyQJXuAfkkgxi/wqORnP7zxxocaGyL8ggQMiI4aJC2k6hgFo2AUjIKRAQD5NEOui/Jx8AAAAABJRU5ErkJggg==","orcid":"","institution":"China University of Mining and Technology-Beijing","correspondingAuthor":true,"prefix":"","firstName":"Yubing","middleName":"","lastName":"Huang","suffix":""}],"badges":[],"createdAt":"2026-02-06 06:56:42","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-8803611/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-8803611/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":104397611,"identity":"bd753be1-f8df-4a93-b59f-60efb3fb2e8c","added_by":"auto","created_at":"2026-03-11 11:52:51","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1289509,"visible":true,"origin":"","legend":"","description":"","filename":"RevisedManuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-8803611/v1_covered_2c9d5df3-115f-4170-8b68-e24778cd7e3b.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Bearing characteristics and influence mechanism of lightweight and high-strength arch in deep roadway","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"scientific-reports","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"scirep","sideBox":"Learn more about [Scientific Reports](http://www.nature.com/srep/)","snPcode":"","submissionUrl":"","title":"Scientific Reports","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Scientific Reports","inReviewEnabled":true,"inReviewRevisionsEnabled":true},"keywords":"lightweight and high-strength characteristics, arch support, bearing capacity, field application","lastPublishedDoi":"10.21203/rs.3.rs-8803611/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-8803611/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eDeep underground engineering often faces complex conditions such as high stress and extremely soft rock. Due to the problems of heavy self-weight, insufficient bearing capacity and low construction efficiency, the traditional steel arch cannot meet the requirements of safe and efficient construction of underground engineering in deep and complex conditions. Based on this, a new lightweight high-strength arch support technology is developed, and full-scale mechanical tests of lightweight high-strength arch and U36 arch are carried out. The test results show that compared with U36 arch, the initial sliding resistance and ultimate bearing capacity of lightweight high-strength arch are increased by 37.6% and 20.1% respectively with 33.3% weight reduction. The new support can provide higher support strength for the surrounding rock of deep roadway while reducing the construction strength. On this basis, a full-scale numerical model of the lightweight high-strength arch is established. The influence mechanism of the lightweight high-strength arch bearing performance is clarified. 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