Mechanical characteristics and stability analysis of surrounding rock reinforcement in rectangular roadway

Mechanical characteristics and stability analysis of surrounding rock reinforcement in rectangular 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 Mechanical characteristics and stability analysis of surrounding rock reinforcement in rectangular roadway Shuan-Cheng GU, Pan WANG, Chao-Fan YANG This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-2242431/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 8 You are reading this latest preprint version Abstract The stability of surrounding rock with bolt support depends on the stability within the reinforcement range. To understand the reinforcing mechanism of a rectangular roadway bolt fully and accurately, a quantitative method for evaluating the stability of the surrounding rock of a rectangular roadway must be developed. First, a roof beam model of a rectangular tunnel is established according to the deformation law of surrounding rock. Based on the elastic–plastic theory, the deflection calculation formula can be derived, and the ultimate load of the roof beam can be obtained under the plastic state without support. Second, based on the reinforcement effect of bolts, a model of a surrounding rock reinforcement body is established, the physical and mechanical properties of this body are deduced, and a method for evaluating the stability of surrounding rock is derived. Finally, by considering actual engineering cases, the theoretical calculation results of surrounding rock deformation are compared with the numerical simulation and field monitoring results. Moreover, the influence of different parameters of the bolt support on the mechanical characteristics and stability of reinforcement is investigated. The results show that the theoretical calculations approximate the numerical simulation and field monitoring values, thus verifying the rationality of the theory. The physical and mechanical properties and stability of the surrounding rock reinforcement body are considerably affected by changes in bolt length and spacing. The anchor design must apply the following principle: the bolt must either be long and sparsely spaced or short and densely spaced. The theory presented in this paper provides a relatively simple and fast quantitative calculation method for the study of the surrounding rock stability of bolt-supported rectangular roadways. Physical sciences/Engineering/Civil engineering Physical sciences/Energy science and technology/Carbon capture and storage Physical sciences/Mathematics and computing Rectangular tunnels Roof deformation Physical and mechanical properties of surrounding rock reinforcement body Elastic–plastic analysis Stability evaluation of surrounding rock Full Text Additional Declarations No competing interests reported. Supplementary Files Rawdata.doc Cite Share Download PDF Status: Under Review Version 1 posted Editorial decision: Major revision 28 Nov, 2022 Reviews received at journal 25 Nov, 2022 Reviewers agreed at journal 17 Nov, 2022 Reviewers invited by journal 16 Nov, 2022 Editor assigned by journal 16 Nov, 2022 Editor invited by journal 09 Nov, 2022 Submission checks completed at journal 09 Nov, 2022 First submitted to journal 05 Nov, 2022 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-2242431","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":150693303,"identity":"14efc7a9-c26f-4e10-9c01-bc0e49d8c26b","order_by":0,"name":"Shuan-Cheng GU","email":"","orcid":"","institution":"Xi'an University of Science and Technology","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Shuan-Cheng","middleName":"","lastName":"GU","suffix":""},{"id":150693306,"identity":"32b614d2-2c54-439c-85e8-9862918a65b4","order_by":1,"name":"Pan WANG","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA40lEQVRIie3Roa7CMBSA4dMsGaaALcllC28AmeVh2pAMdRPkBOIsI50AgoW3QCK7NJkqHsneYDgE4u5qCB0O0U/3z+lpARznC/mdXa3EgwVhWKVXniztSY+qibrhNJrgLBtfTWlPAsaj4oCxQDWXg2rltbgYVVx3T1qkWMhEoA/9fM0tu6DSXaOjnKTyIk4/wMz5aJlSoKa+HqYZaRLjw5j9WhI2g/+EYEnkQkivTRJDcZDxCA2R0C6hBlRtmkfek4xxU1LrLmG+8WqeNF/JOtXtniyDfr59nzyhnx13HMdxXvoDiqpSAeE+fMgAAAAASUVORK5CYII=","orcid":"","institution":"Xi'an University of Science and Technology","correspondingAuthor":true,"submittingAuthor":false,"prefix":"","firstName":"Pan","middleName":"","lastName":"WANG","suffix":""},{"id":150693309,"identity":"82b1fe0c-35a1-4692-b956-404b95f04e05","order_by":2,"name":"Chao-Fan YANG","email":"","orcid":"","institution":"Xi'an Kedagaoxin University","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Chao-Fan","middleName":"","lastName":"YANG","suffix":""}],"badges":[],"createdAt":"2022-11-06 03:29:09","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-2242431/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-2242431/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":28933837,"identity":"bea1cea0-3751-4a80-9983-03b8e3707a67","added_by":"auto","created_at":"2022-11-11 05:49:28","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":775361,"visible":true,"origin":"","legend":"","description":"","filename":"Mechanicalcharacteristicsandstabilityanalysisofsurroundingrockreinforcementinrectangularroadway.pdf","url":"https://assets-eu.researchsquare.com/files/rs-2242431/v1_covered.pdf"},{"id":28933836,"identity":"32358371-a342-4587-b782-5f84f7ba7046","added_by":"auto","created_at":"2022-11-11 05:49:10","extension":"doc","order_by":1,"title":"","display":"","copyAsset":false,"role":"supplement","size":370176,"visible":true,"origin":"","legend":"","description":"","filename":"Rawdata.doc","url":"https://assets-eu.researchsquare.com/files/rs-2242431/v1/5df2444a297e43c32220c832.doc"}],"financialInterests":"No competing interests reported.","formattedTitle":"Mechanical characteristics and stability analysis of surrounding rock reinforcement in rectangular 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":"Rectangular tunnels, Roof deformation, Physical and mechanical properties of surrounding rock reinforcement body, Elastic–plastic analysis, Stability evaluation of surrounding rock","lastPublishedDoi":"10.21203/rs.3.rs-2242431/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-2242431/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eThe stability of surrounding rock with bolt support depends on the stability within the reinforcement range. To understand the reinforcing mechanism of a rectangular roadway bolt fully and accurately, a quantitative method for evaluating the stability of the surrounding rock of a rectangular roadway must be developed. First, a roof beam model of a rectangular tunnel is established according to the deformation law of surrounding rock. Based on the elastic\u0026ndash;plastic theory, the deflection calculation formula can be derived, and the ultimate load of the roof beam can be obtained under the plastic state without support. Second, based on the reinforcement effect of bolts, a model of a surrounding rock reinforcement body is established, the physical and mechanical properties of this body are deduced, and a method for evaluating the stability of surrounding rock is derived. Finally, by considering actual engineering cases, the theoretical calculation results of surrounding rock deformation are compared with the numerical simulation and field monitoring results. Moreover, the influence of different parameters of the bolt support on the mechanical characteristics and stability of reinforcement is investigated. The results show that the theoretical calculations approximate the numerical simulation and field monitoring values, thus verifying the rationality of the theory. The physical and mechanical properties and stability of the surrounding rock reinforcement body are considerably affected by changes in bolt length and spacing. The anchor design must apply the following principle: the bolt must either be long and sparsely spaced or short and densely spaced. The theory presented in this paper provides a relatively simple and fast quantitative calculation method for the study of the surrounding rock stability of bolt-supported rectangular roadways.\u003c/p\u003e","manuscriptTitle":"Mechanical characteristics and stability analysis of surrounding rock reinforcement in rectangular roadway","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2022-11-11 05:49:03","doi":"10.21203/rs.3.rs-2242431/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Major revision","date":"2022-11-28T08:45:58+00:00","index":"","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2022-11-26T00:37:44+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"9893e53c-7ef6-4e64-8c0e-e3e00a36533a","date":"2022-11-17T16:07:41+00:00","index":"hide","fulltext":""},{"type":"reviewersInvited","content":"","date":"2022-11-16T17:21:26+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2022-11-16T12:33:51+00:00","index":"","fulltext":""},{"type":"editorInvited","content":"","date":"2022-11-09T10:06:03+00:00","index":"","fulltext":""},{"type":"checksComplete","content":"","date":"2022-11-09T10:04:17+00:00","index":"","fulltext":""},{"type":"submitted","content":"Scientific Reports","date":"2022-11-06T03:28:31+00:00","index":"","fulltext":""}],"status":"published","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}}],"origin":"","ownerIdentity":"97547c15-9957-4b21-8525-555ab48fbe3f","owner":[],"postedDate":"November 11th, 2022","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"under-review","subjectAreas":[{"id":16835711,"name":"Physical sciences/Engineering/Civil engineering"},{"id":16835712,"name":"Physical sciences/Energy science and technology/Carbon capture and storage"},{"id":16835713,"name":"Physical sciences/Mathematics and computing"}],"tags":[],"updatedAt":"2022-12-20T07:44:15+00:00","versionOfRecord":[],"versionCreatedAt":"2022-11-11 05:49:03","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-2242431","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-2242431","identity":"rs-2242431","version":["v1"]},"buildId":"WrCJVZZCHTDjtuVLN7oU0","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}