The Mechanistical Principles and Engineering Application of Top- Cutting for Roadway Protection in Advance of the Working Face

The Mechanistical Principles and Engineering Application of Top- Cutting for Roadway Protection in Advance of the Working Face | 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 The Mechanistical Principles and Engineering Application of Top- Cutting for Roadway Protection in Advance of the Working Face Zhaotai Li, Yuejin Zhou, Xiaoding Xu, Yuhang Xiao, Yunong Xu This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4962026/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 11 Jan, 2025 Read the published version in Scientific Reports → Version 1 posted 10 You are reading this latest preprint version Abstract In coal mining operations, it is often challenging to control the deformation of the roadway in front of the working face. The excessive stress from the surrounding rock of the working face and the difficulties in caving the goaf roof have led to a prominent factor that hinders safe and efficient production in coal mines. For this reason, a mechanical model of the stress field in the advance roadway of the working face is established, and the stress evolution law of the surrounding rock before and after cutting the roof of the roadway is analyzed. Key parameters such as cutting depth, cutting angle, and hole spacing are determined through theoretical calculation, numerical simulation with 3DEC numerical software, and field testing. A kind of roof cutting and pressure relief techniques (TCPAF) for enhanced roadway safeguarding in advance mining face is proposed, and its effectiveness is verified through field testing. The results indicate that the stress on the low-stress side of the leading roadway remains slightly increased, while on the high-stress side, stress decreases significantly,optimizing the stress environment of the surrounding rock. In addition, the research results provide a scientific basis for similar conditions of roadway deformation. Physical sciences/Energy science and technology/Fossil fuels/Coal Physical sciences/Engineering/Civil engineering top pressure relief surrounding rock stress evolution numerical simulation mine pressure behavior advance stress of mining face Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 11 Jan, 2025 Read the published version in Scientific Reports → Version 1 posted Editorial decision: Revision requested 07 Oct, 2024 Reviews received at journal 04 Oct, 2024 Reviews received at journal 23 Sep, 2024 Reviewers agreed at journal 23 Sep, 2024 Reviewers agreed at journal 22 Sep, 2024 Reviewers invited by journal 19 Sep, 2024 Editor assigned by journal 19 Sep, 2024 Editor invited by journal 03 Sep, 2024 Submission checks completed at journal 03 Sep, 2024 First submitted to journal 23 Aug, 2024 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. 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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-4962026","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":358131538,"identity":"e69de727-f433-4ae7-8c0a-4b7309850ad1","order_by":0,"name":"Zhaotai Li","email":"","orcid":"","institution":"China University of Mining and Technology","correspondingAuthor":false,"prefix":"","firstName":"Zhaotai","middleName":"","lastName":"Li","suffix":""},{"id":358131539,"identity":"823d6333-f5e6-4fe2-8ff7-96b5d312c0ce","order_by":1,"name":"Yuejin Zhou","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAvUlEQVRIiWNgGAWjYJACgwQGhgR+ZubDD0jTItnOlmZAkk0JBud5FCSIs+FG8oGChzvq8owP8zAYMNTYRBOhJS3BIPEMW7HZYd4DDxiOpeU2ENaSY2CQ2MaTuO0wX4IBY8NhYrTkfwBqkUjc3MxjIEGklhwGoBaDxA3MxGqRPPMM5LCExBmHgYGcQIxf+I4nPzP82VaX2N9/+PCDDzU2hLUoHGBgQ8RgAiHlICDfwMD8gBiFo2AUjIJRMIIBAHEWQbchvaVTAAAAAElFTkSuQmCC","orcid":"","institution":"China University of Mining and Technology","correspondingAuthor":true,"prefix":"","firstName":"Yuejin","middleName":"","lastName":"Zhou","suffix":""},{"id":358131540,"identity":"bb93e32e-544f-4082-a704-11bf2045b9dd","order_by":2,"name":"Xiaoding Xu","email":"","orcid":"","institution":"China University of Mining and Technology","correspondingAuthor":false,"prefix":"","firstName":"Xiaoding","middleName":"","lastName":"Xu","suffix":""},{"id":358131541,"identity":"fd09d0d3-24d4-4068-bde6-25c25b3b034e","order_by":3,"name":"Yuhang Xiao","email":"","orcid":"","institution":"China University of Mining and Technology","correspondingAuthor":false,"prefix":"","firstName":"Yuhang","middleName":"","lastName":"Xiao","suffix":""},{"id":358131542,"identity":"feead6a7-d1b9-411f-b58f-fa759f9b9723","order_by":4,"name":"Yunong Xu","email":"","orcid":"","institution":"China University of Mining and Technology","correspondingAuthor":false,"prefix":"","firstName":"Yunong","middleName":"","lastName":"Xu","suffix":""}],"badges":[],"createdAt":"2024-08-23 06:44:38","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4962026/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4962026/v1","draftVersion":[],"editorialEvents":[{"content":"https://doi.org/10.1038/s41598-024-79523-8","type":"published","date":"2025-01-11T15:57:33+00:00"}],"editorialNote":"","failedWorkflow":false,"files":[{"id":73694214,"identity":"47259e08-9346-43d9-9ded-e335095b8416","added_by":"auto","created_at":"2025-01-13 16:12:21","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":982593,"visible":true,"origin":"","legend":"","description":"","filename":"file.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4962026/v1_covered_23d6b334-28ba-4ec8-821c-f8d2b6eb719c.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"The Mechanistical Principles and Engineering Application of Top- Cutting for Roadway Protection in Advance of the Working Face","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":"top pressure relief, surrounding rock stress evolution, numerical simulation, mine pressure behavior, advance stress of mining face","lastPublishedDoi":"10.21203/rs.3.rs-4962026/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4962026/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eIn coal mining operations, it is often challenging to control the deformation of the roadway in front of the working face. The excessive stress from the surrounding rock of the working face and the difficulties in caving the goaf roof have led to a prominent factor that hinders safe and efficient production in coal mines. For this reason, a mechanical model of the stress field in the advance roadway of the working face is established, and the stress evolution law of the surrounding rock before and after cutting the roof of the roadway is analyzed. Key parameters such as cutting depth, cutting angle, and hole spacing are determined through theoretical calculation, numerical simulation with 3DEC numerical software, and field testing. A kind of roof cutting and pressure relief techniques (TCPAF) for enhanced roadway safeguarding in advance mining face is proposed, and its effectiveness is verified through field testing. The results indicate that the stress on the low-stress side of the leading roadway remains slightly increased, while on the high-stress side, stress decreases significantly,optimizing the stress environment of the surrounding rock. 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