Study on Deformation and Failure Characteristics of Surrounding Rock and Supporting Countermeasures in Deep Mining Dynamic Pressure Roadways

Study on Deformation and Failure Characteristics of Surrounding Rock and Supporting Countermeasures in Deep Mining Dynamic Pressure Roadways | 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 Study on Deformation and Failure Characteristics of Surrounding Rock and Supporting Countermeasures in Deep Mining Dynamic Pressure Roadways Yiwen Liang, Xiaohui Liao, Wenhua Zha, Wenbo Cheng, Jiayuan Lou This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7553475/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 Deep rock masses have long been in a complex geomechanical environment characterized by "high ground stress, high groundwater pressure, high temperature, and strong disturbance", which complicates their structural characteristics and mechanical behaviors. The − 850m roadway in Qujiang Coal Mine is laid longitudinally under the 805 working face and coal pillars. Affected by the mining activities of the upper working face and the eccentric pressure of coal pillars, the roadway exhibits various deformation and failure characteristics. In this study, field investigations, stress monitoring of bolts and cables, and surrounding rock deformation monitoring were conducted to analyze the deformation and failure patterns of the mining-induced dynamic pressure roadway. Additionally, the FLAC3D numerical software was used to verify and analyze the proposed support countermeasures. The results show that: ( 1 ) Through methods such as axial force monitoring of bolts and cables and surrounding rock deformation monitoring, it is found that the − 850m mining-induced dynamic pressure roadway has obvious zonal failure characteristics, which are divided into the rear continuous (high-pressure) deformation zone and the front disturbed (dynamic pressure) deformation zone. ( 2 ) In the front disturbed (dynamic pressure) deformation zone, failures mainly occur in the roadway roof, mostly in the form of sliding shear failure. In the rear continuous (high-pressure) deformation zone, failures are mainly concentrated in the floor and arch feet: the floor is prone to plastic extrusion deformation and failure, while the arch feet mainly suffer from punching shear and inward folding failures. ( 3 ) Based on the failure patterns of different zones in the − 850m roadway, it is proposed that the "triple-anchor" combined support technology should be applied in the rear continuous (high-pressure) deformation zone, and the support concept of combining resistance and yielding should be adopted in the front disturbed (dynamic pressure) deformation zone. ( 4 ) FLAC3D numerical simulation was carried out, and the simulation data were consistent with the field measured data of reinforcement, confirming the rationality and effectiveness of the proposed zonal support countermeasures. The research results provide a certain reference for the surrounding rock deformation control of deep mining-induced dynamic pressure roadways in the future. Mining dynamic pressure roadway Three highs and one disturbance Numerical simulation Deformation and failure Support countermeasures Full Text Additional Declarations No competing interests reported. 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-7553475","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":514753295,"identity":"4526d122-a168-4792-8a60-ea09f53542d7","order_by":0,"name":"Yiwen Liang","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAwklEQVRIiWNgGAWjYBACefbGhgMfKiAcCaK0GPYcbnw44wwpWhhupDcb87aRooWx52CbBO88a3v+BuaDt3kY7PIIamFnb2yTkNyWzixxgC3ZmochuZg4Wwy3HWYzYOAxk+ZhOJDYQFDPjcQ2icQ5h3kMGPi/Ea2l2eBgw2EJoC1sxGkx7DnY+LDhWLqBxGE2Y8s5BsmEtciztz84/KcGGGLtzQ9vvKmwI8JhEMAMRgwMBkSqZ4CqHwWjYBSMglGAHQAAQ745kyvGRlcAAAAASUVORK5CYII=","orcid":"","institution":"Quzhou University","correspondingAuthor":true,"prefix":"","firstName":"Yiwen","middleName":"","lastName":"Liang","suffix":""},{"id":514753298,"identity":"6ef14a23-c2a5-4e83-b4fa-478199a71335","order_by":1,"name":"Xiaohui Liao","email":"","orcid":"","institution":"Quzhou University","correspondingAuthor":false,"prefix":"","firstName":"Xiaohui","middleName":"","lastName":"Liao","suffix":""},{"id":514753301,"identity":"e038142a-f0bd-431b-82c0-fee691ad0a85","order_by":2,"name":"Wenhua Zha","email":"","orcid":"","institution":"East China University of Technology","correspondingAuthor":false,"prefix":"","firstName":"Wenhua","middleName":"","lastName":"Zha","suffix":""},{"id":514753305,"identity":"1fe9cac3-52d2-42ee-8b93-4dad14e7878c","order_by":3,"name":"Wenbo Cheng","email":"","orcid":"","institution":"Fugu energy investment group shagoucha Mining Co., Ltd","correspondingAuthor":false,"prefix":"","firstName":"Wenbo","middleName":"","lastName":"Cheng","suffix":""},{"id":514753309,"identity":"71dc4be1-83c4-4d69-9ccc-e9145c530ca5","order_by":4,"name":"Jiayuan Lou","email":"","orcid":"","institution":"Quzhou University","correspondingAuthor":false,"prefix":"","firstName":"Jiayuan","middleName":"","lastName":"Lou","suffix":""}],"badges":[],"createdAt":"2025-09-07 01:53:11","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-7553475/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-7553475/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":93860953,"identity":"7956c278-652b-456a-b7db-96435a9ea739","added_by":"auto","created_at":"2025-10-19 05:46:31","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":3025208,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-7553475/v1_covered_0ab381cc-d7dd-4cc4-a0b8-68cea5921dad.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Study on Deformation and Failure Characteristics of Surrounding Rock and Supporting Countermeasures in Deep Mining Dynamic Pressure Roadways","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":"Mining dynamic pressure roadway, Three highs and one disturbance, Numerical simulation, Deformation and failure, Support countermeasures","lastPublishedDoi":"10.21203/rs.3.rs-7553475/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-7553475/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eDeep rock masses have long been in a complex geomechanical environment characterized by \"high ground stress, high groundwater pressure, high temperature, and strong disturbance\", which complicates their structural characteristics and mechanical behaviors. The \u0026minus;\u0026thinsp;850m roadway in Qujiang Coal Mine is laid longitudinally under the 805 working face and coal pillars. Affected by the mining activities of the upper working face and the eccentric pressure of coal pillars, the roadway exhibits various deformation and failure characteristics. In this study, field investigations, stress monitoring of bolts and cables, and surrounding rock deformation monitoring were conducted to analyze the deformation and failure patterns of the mining-induced dynamic pressure roadway. Additionally, the FLAC3D numerical software was used to verify and analyze the proposed support countermeasures. The results show that: (\u003cspan citationid=\"CR1\" class=\"CitationRef\"\u003e1\u003c/span\u003e) Through methods such as axial force monitoring of bolts and cables and surrounding rock deformation monitoring, it is found that the \u0026minus;\u0026thinsp;850m mining-induced dynamic pressure roadway has obvious zonal failure characteristics, which are divided into the rear continuous (high-pressure) deformation zone and the front disturbed (dynamic pressure) deformation zone. (\u003cspan citationid=\"CR2\" class=\"CitationRef\"\u003e2\u003c/span\u003e) In the front disturbed (dynamic pressure) deformation zone, failures mainly occur in the roadway roof, mostly in the form of sliding shear failure. In the rear continuous (high-pressure) deformation zone, failures are mainly concentrated in the floor and arch feet: the floor is prone to plastic extrusion deformation and failure, while the arch feet mainly suffer from punching shear and inward folding failures. (\u003cspan citationid=\"CR3\" class=\"CitationRef\"\u003e3\u003c/span\u003e) Based on the failure patterns of different zones in the \u0026minus;\u0026thinsp;850m roadway, it is proposed that the \"triple-anchor\" combined support technology should be applied in the rear continuous (high-pressure) deformation zone, and the support concept of combining resistance and yielding should be adopted in the front disturbed (dynamic pressure) deformation zone. (\u003cspan citationid=\"CR4\" class=\"CitationRef\"\u003e4\u003c/span\u003e) FLAC3D numerical simulation was carried out, and the simulation data were consistent with the field measured data of reinforcement, confirming the rationality and effectiveness of the proposed zonal support countermeasures. The research results provide a certain reference for the surrounding rock deformation control of deep mining-induced dynamic pressure roadways in the future.\u003c/p\u003e","manuscriptTitle":"Study on Deformation and Failure Characteristics of Surrounding Rock and Supporting Countermeasures in Deep Mining Dynamic Pressure Roadways","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-09-18 14:20:12","doi":"10.21203/rs.3.rs-7553475/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","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}}],"origin":"","ownerIdentity":"57a7384e-ad3d-452d-b83e-9810619c4476","owner":[],"postedDate":"September 18th, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2025-10-19T05:38:17+00:00","versionOfRecord":[],"versionCreatedAt":"2025-09-18 14:20:12","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-7553475","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-7553475","identity":"rs-7553475","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}