Destruction mechanism and control technology of peripheral rock of shallowly buried large mining height roadway under concentrated coal pillar

Destruction mechanism and control technology of peripheral rock of shallowly buried large mining height roadway under concentrated coal pillar | 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 Destruction mechanism and control technology of peripheral rock of shallowly buried large mining height roadway under concentrated coal pillar Qinglong Yun, Wenbo Zhang, Tao Liu, Jianghao Wang, Fei Tong This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3899158/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 To study the damage mechanism of the return roadway of shallow burial depth, thin bedrock, and large mining height working face under the action of concentrated coal pillar. In this paper, we take the 22408 return roadway of Bulianta Mine as the research background and focus on the problem that the mine pressure appears drastically when it passes over the overlying concentrated coal pillar. Through theoretical analysis and numerical simulation, the mine pressure manifestation law of 22408 working face back to the mining roadway is studied. We analyzed the reasons that led to the drastic manifestation of mine pressure in the 22408 return roadway over the overlying concentrated coal pillar, revealed the damage mechanism of the roadway under this condition, and put forward a reasonable and effective method of controlling the stability of the surrounding rock for this problem. (1) Propose to utilize hydraulic fracturing to control the problem in advance, and set up a drilling field in the 22407 return tunnel to fracture the medium-grained sandstone 20m above the 2–2 coal in advance; (2) Strengthen the support of the area affected by the coal pillar in advance, and replenish three Φ21.6×8150 mm anchor cables with the spacing of 1200 mm-1500 mm-1500 mm-1200 mm on the roof of the tunnel; (3) Strengthen the support of the area affected by the coal pillar in advance; (4) Strengthen the support of the area affected by the coal pillar in advance, and strengthen the support of the area affected by the coal pillar in advance. At this time, three Φ21.6×5150 mm anchor cables with PVC belts were installed on the side gang of the return tunnel, and the optimized return tunnel was monitored on site, and the effect was good. overlying concentrated coal pillar mine pressure appear pre-flexible governance strengthen support 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. 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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-3899158","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":271148636,"identity":"84223cd0-3ef6-4f08-be3e-e3d331d87adb","order_by":0,"name":"Qinglong Yun","email":"","orcid":"","institution":"China University of Mining and Technology (Beijing)","correspondingAuthor":false,"prefix":"","firstName":"Qinglong","middleName":"","lastName":"Yun","suffix":""},{"id":271148637,"identity":"960f751e-77ac-4628-9e3f-ce089c9ea983","order_by":1,"name":"Wenbo Zhang","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA40lEQVRIie3QsWoCQRCA4ZGFBWHIWs5xcr7ChgXJ4+w2Vxmw3EJEMNwVIanNW1imFAau2pDW8sQXyHWpglob7s7OYr96fpgZgCi6Q3LCXP94QiVUU1u/6E4eSOaPm/CUJSUYXYeqO8kIdTosvNHfME0OL6LHYmlhDUhyW4bcu5UEVb7a9mTMu+McyX0wVHv3OQYKX9v2BHJrNkTunQfF3gUJmp67kplOUZNbsZBzV4geCV0SS2bEUkK/BKvzk3eUJWsUZEOFnbdMyjXXzd8SlQqD5tcvMlW+tSdX8LbxKIqi6F8nkmhHHLdIp9oAAAAASUVORK5CYII=","orcid":"","institution":"China University of Mining and Technology (Beijing)","correspondingAuthor":true,"prefix":"","firstName":"Wenbo","middleName":"","lastName":"Zhang","suffix":""},{"id":271148638,"identity":"f753ff89-7532-4fa1-a167-cfc3ba69ae3e","order_by":2,"name":"Tao Liu","email":"","orcid":"","institution":"China University of Mining and Technology (Beijing)","correspondingAuthor":false,"prefix":"","firstName":"Tao","middleName":"","lastName":"Liu","suffix":""},{"id":271148639,"identity":"d17e96a6-4bef-480a-8af6-cf9cf791745c","order_by":3,"name":"Jianghao Wang","email":"","orcid":"","institution":"China University of Mining and Technology (Beijing)","correspondingAuthor":false,"prefix":"","firstName":"Jianghao","middleName":"","lastName":"Wang","suffix":""},{"id":271148640,"identity":"d2c67658-996b-4feb-8c01-6e6d5fb50869","order_by":4,"name":"Fei Tong","email":"","orcid":"","institution":"China University of Mining and Technology (Beijing)","correspondingAuthor":false,"prefix":"","firstName":"Fei","middleName":"","lastName":"Tong","suffix":""}],"badges":[],"createdAt":"2024-01-26 06:14:14","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-3899158/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-3899158/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":54674529,"identity":"73db53cb-3f83-4a02-8979-dbeef069c678","added_by":"auto","created_at":"2024-04-15 06:17:04","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":906237,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-3899158/v1_covered_be738198-629b-44d5-ba9f-6950aed065fa.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Destruction mechanism and control technology of peripheral rock of shallowly buried large mining height roadway under concentrated coal pillar","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":"overlying concentrated coal pillar, mine pressure appear, pre-flexible governance, strengthen support","lastPublishedDoi":"10.21203/rs.3.rs-3899158/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-3899158/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eTo study the damage mechanism of the return roadway of shallow burial depth, thin bedrock, and large mining height working face under the action of concentrated coal pillar. In this paper, we take the 22408 return roadway of Bulianta Mine as the research background and focus on the problem that the mine pressure appears drastically when it passes over the overlying concentrated coal pillar. Through theoretical analysis and numerical simulation, the mine pressure manifestation law of 22408 working face back to the mining roadway is studied. We analyzed the reasons that led to the drastic manifestation of mine pressure in the 22408 return roadway over the overlying concentrated coal pillar, revealed the damage mechanism of the roadway under this condition, and put forward a reasonable and effective method of controlling the stability of the surrounding rock for this problem. (1) Propose to utilize hydraulic fracturing to control the problem in advance, and set up a drilling field in the 22407 return tunnel to fracture the medium-grained sandstone 20m above the 2\u0026ndash;2 coal in advance; (2) Strengthen the support of the area affected by the coal pillar in advance, and replenish three Φ21.6\u0026times;8150 mm anchor cables with the spacing of 1200 mm-1500 mm-1500 mm-1200 mm on the roof of the tunnel; (3) Strengthen the support of the area affected by the coal pillar in advance; (4) Strengthen the support of the area affected by the coal pillar in advance, and strengthen the support of the area affected by the coal pillar in advance. At this time, three Φ21.6\u0026times;5150 mm anchor cables with PVC belts were installed on the side gang of the return tunnel, and the optimized return tunnel was monitored on site, and the effect was good.\u003c/p\u003e","manuscriptTitle":"Destruction mechanism and control technology of peripheral rock of shallowly buried large mining height roadway under concentrated coal pillar","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-02-06 16:33:50","doi":"10.21203/rs.3.rs-3899158/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":"b7de7f3d-81a0-4823-8fb3-981dae5c2b87","owner":[],"postedDate":"February 6th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2024-04-15T06:08:56+00:00","versionOfRecord":[],"versionCreatedAt":"2024-02-06 16:33:50","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-3899158","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-3899158","identity":"rs-3899158","version":["v1"]},"buildId":"qtupq5eGEP_6zYnWcrvyt","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}