Mining-induced stress concentration characteristics and Stress-oriented fracturing mechanism of huge thick overlying strata in shallow coal seam

Mining-induced stress concentration characteristics and Stress-oriented fracturing mechanism of huge thick overlying strata in shallow coal seam | 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 Mining-induced stress concentration characteristics and Stress-oriented fracturing mechanism of huge thick overlying strata in shallow coal seam Xiaowu Zhang, Yue Cao, Weiyong Lu, Yaohui Sun, Lei Shi, Zhijun Xu, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-9357454/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 12 You are reading this latest preprint version Abstract To address the problem of strong mine pressure caused by huge thick overlying strata(HTOS), this paper analyzes the distribution law of mining stress field in different layers of HTOS, and the expression of mining stress concentration coefficient of HTOS is given. The law of hydraulic fracture propagation in stress concentration area and original stress area of stope roof is expounded. The stress-oriented fracturing mechanism of HTOS is revealed. The results show that: (1) Along the advacned direction, the stress concentration value in the HTOS increases first and then decreases, exhibiting a "core" distribution pattern. As the buried depth of the roof increases, the range of the stress concentration core gradually decreases;(2) When hydraulic fracturing is carried out in the stress concentration area and the original stress area respectively, vertical hydraulic fractures and horizontal hydraulic fractures will be formed in the roof respectively;(3) The fracture propagation pressure in the stress concentration area is significantly greater than that in the original stress area. After the stress-oriented fracturing of the HTOS, the support resistance of the working face is significantly reduced, which is beneficial to the mine pressure management of the working face. Physical sciences/Energy science and technology Physical sciences/Engineering Earth and environmental sciences/Solid earth sciences Huge thick overlying strata Mining stress field Directional drilling Hydraulic fracturing Microseismic monitoring Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 1 posted Editorial decision: Revision requested 22 Apr, 2026 Reviews received at journal 21 Apr, 2026 Reviewers agreed at journal 20 Apr, 2026 Reviewers agreed at journal 20 Apr, 2026 Reviewers agreed at journal 20 Apr, 2026 Reviews received at journal 18 Apr, 2026 Reviewers agreed at journal 15 Apr, 2026 Reviewers invited by journal 15 Apr, 2026 Editor assigned by journal 15 Apr, 2026 Editor invited by journal 15 Apr, 2026 Submission checks completed at journal 14 Apr, 2026 First submitted to journal 14 Apr, 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. 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-9357454","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":627652809,"identity":"6f607c07-ba88-4d0f-8ffa-83ac2b86ce01","order_by":0,"name":"Xiaowu Zhang","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAzklEQVRIiWNgGAWjYDACCSD+UPFfjo8dxGMjUgvjjDPMxmzMpGhh5mxhTmwjWov87B4zacYGtvQ2Zh4Dhg9lhxn4Zzfg18I451iadOEOnlyQFsYZ5w4zSNw5gF8Ls0Tysdszz0iAtTDzth1mMJBIwK+FTSKx7TZvm0E6G0jLX2K08IBs4W1LSABrYSRGi4REWvrPGWcOGLYxsxUc7DmXziNxg4AW+Rk5xgYfKg7I87M3b3zwo8xajn8GAS0o4ADIpSSoHwWjYBSMglGACwAA9Z86WU97rMEAAAAASUVORK5CYII=","orcid":"","institution":"Lyuliang University","correspondingAuthor":true,"prefix":"","firstName":"Xiaowu","middleName":"","lastName":"Zhang","suffix":""},{"id":627652810,"identity":"4a8eea1d-683a-462a-998e-17298079bdde","order_by":1,"name":"Yue Cao","email":"","orcid":"","institution":"China University of Mining and Technology","correspondingAuthor":false,"prefix":"","firstName":"Yue","middleName":"","lastName":"Cao","suffix":""},{"id":627652811,"identity":"cc88d884-9109-43b3-a434-7e99a067c9be","order_by":2,"name":"Weiyong Lu","email":"","orcid":"","institution":"Lyuliang University","correspondingAuthor":false,"prefix":"","firstName":"Weiyong","middleName":"","lastName":"Lu","suffix":""},{"id":627652812,"identity":"01ab0d71-9faa-4d78-b185-44a4a7801a2d","order_by":3,"name":"Yaohui Sun","email":"","orcid":"","institution":"Lyuliang University","correspondingAuthor":false,"prefix":"","firstName":"Yaohui","middleName":"","lastName":"Sun","suffix":""},{"id":627652813,"identity":"46942496-f57c-4054-a29d-12d0fd5cd7a5","order_by":4,"name":"Lei Shi","email":"","orcid":"","institution":"Lyuliang University","correspondingAuthor":false,"prefix":"","firstName":"Lei","middleName":"","lastName":"Shi","suffix":""},{"id":627652814,"identity":"8cccb84d-a234-4a67-8dfb-00ed405ac065","order_by":5,"name":"Zhijun Xu","email":"","orcid":"","institution":"China University of Mining and Technology","correspondingAuthor":false,"prefix":"","firstName":"Zhijun","middleName":"","lastName":"Xu","suffix":""},{"id":627652815,"identity":"d395071d-63da-44ba-aedd-38ad0ce3c045","order_by":6,"name":"Lianhai Tai","email":"","orcid":"","institution":"Anhui University of Science and Technology","correspondingAuthor":false,"prefix":"","firstName":"Lianhai","middleName":"","lastName":"Tai","suffix":""}],"badges":[],"createdAt":"2026-04-08 13:10:57","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-9357454/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-9357454/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":107707732,"identity":"3660ab95-192a-4b9c-92b3-19792bfadee4","added_by":"auto","created_at":"2026-04-24 09:21:01","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1606245,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscriptv1.pdf","url":"https://assets-eu.researchsquare.com/files/rs-9357454/v1_covered_059c0020-9903-4a90-a5a8-6f07f46d4aaf.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Mining-induced stress concentration characteristics and Stress-oriented fracturing mechanism of huge thick overlying strata in shallow coal seam","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":"Huge thick overlying strata, Mining stress field, Directional drilling, Hydraulic fracturing, Microseismic monitoring","lastPublishedDoi":"10.21203/rs.3.rs-9357454/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-9357454/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eTo address the problem of strong mine pressure caused by huge thick overlying strata(HTOS), this paper analyzes the distribution law of mining stress field in different layers of HTOS, and the expression of mining stress concentration coefficient of HTOS is given. The law of hydraulic fracture propagation in stress concentration area and original stress area of stope roof is expounded. The stress-oriented fracturing mechanism of HTOS is revealed. The results show that: (1) Along the advacned direction, the stress concentration value in the HTOS increases first and then decreases, exhibiting a \"core\" distribution pattern. As the buried depth of the roof increases, the range of the stress concentration core gradually decreases;(2) When hydraulic fracturing is carried out in the stress concentration area and the original stress area respectively, vertical hydraulic fractures and horizontal hydraulic fractures will be formed in the roof respectively;(3) The fracture propagation pressure in the stress concentration area is significantly greater than that in the original stress area. After the stress-oriented fracturing of the HTOS, the support resistance of the working face is significantly reduced, which is beneficial to the mine pressure management of the working face.\u003c/p\u003e","manuscriptTitle":"Mining-induced stress concentration characteristics and Stress-oriented fracturing mechanism of huge thick overlying strata in shallow coal seam","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2026-04-23 22:39:33","doi":"10.21203/rs.3.rs-9357454/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Revision requested","date":"2026-04-22T09:55:27+00:00","index":"","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2026-04-21T09:52:02+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"55064790453372411823507663889455323204","date":"2026-04-21T02:25:24+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"19455999388501215378803075984408160961","date":"2026-04-21T02:25:22+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"109692305371634115342549161498849314227","date":"2026-04-21T01:46:55+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2026-04-18T04:59:29+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"118089797560978289986787784263012863176","date":"2026-04-16T00:38:34+00:00","index":"hide","fulltext":""},{"type":"reviewersInvited","content":"","date":"2026-04-16T00:37:07+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2026-04-15T18:19:26+00:00","index":"","fulltext":""},{"type":"editorInvited","content":"","date":"2026-04-15T18:14:23+00:00","index":"","fulltext":""},{"type":"checksComplete","content":"","date":"2026-04-14T13:41:23+00:00","index":"","fulltext":""},{"type":"submitted","content":"Scientific Reports","date":"2026-04-14T12:29:50+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":"4f9b647c-2400-4a15-a30e-c3b21ed55c38","owner":[],"postedDate":"April 23rd, 2026","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"under-review","subjectAreas":[{"id":66803395,"name":"Physical sciences/Energy science and technology"},{"id":66803396,"name":"Physical sciences/Engineering"},{"id":66803397,"name":"Earth and environmental sciences/Solid earth sciences"}],"tags":[],"updatedAt":"2026-04-28T06:56:09+00:00","versionOfRecord":[],"versionCreatedAt":"2026-04-23 22:39:33","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-9357454","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-9357454","identity":"rs-9357454","version":["v1"]},"buildId":"XKTyCvWXoU3ODBz1xrDgd","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}