Study on Mechanism and Prevention of Seismicity Caused by Fracture of Extra-Thick Strata at High Position

Study on Mechanism and Prevention of Seismicity Caused by Fracture of Extra-Thick Strata at High Position | 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 Mechanism and Prevention of Seismicity Caused by Fracture of Extra-Thick Strata at High Position Zonglong Mu, Chunlong Jiang, Maoning Shi, Wu Cai, Jiaxin Zhuang, and 2 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7144596/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 07 Jan, 2026 Read the published version in Environmental Earth Sciences → Version 1 posted 10 You are reading this latest preprint version Abstract Mining-induced seismicity caused by the fracture of extra-thick strata at high position (ETSHP) presents significant challenges in both prevention and control. This study combines theoretical analysis, numerical simulations and field data to explore the mechanisms behind seismic events induced by ETSHP during coal extraction and the mechanical interactions between ETSHP and the mining-induced "two zones" (the fractured zone and bending subsidence zone). The interaction between ETSHP and underlying strata was modeled using Reissner-Mindlin plate theory, with elastic energy calculations to predict the formation and evolution of separation spaces between ETSHP and overlying strata. The key influencing factors such as coal seam thickness, the spacing between coal seam and ETSHP, and the size of the goaf were examined. Results indicate that thinner coal seams, larger coal-rock spacing, and greater goaf lengths lead to larger separation spaces, significantly increasing the risk of mining-induced seismicity. Additionally, the study developed a comprehensive control strategy combining deep-hole roof blasting and surface hydraulic fracturing to mitigate seismic risks. The effectiveness of these techniques was validated through field monitoring, revealing their ability to reduce seismic hazards in mining operations. This research provides theoretical and practical guidance for managing seismic risks in similar conditions. mining-induced seismicity numerical simulation rock burst strata separation seismic hazard mitigation Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 07 Jan, 2026 Read the published version in Environmental Earth Sciences → Version 1 posted Editorial decision: Revision requested 12 Oct, 2025 Reviews received at journal 09 Oct, 2025 Reviews received at journal 16 Sep, 2025 Reviewers agreed at journal 16 Sep, 2025 Reviewers agreed at journal 10 Sep, 2025 Reviewers agreed at journal 09 Sep, 2025 Reviewers invited by journal 09 Sep, 2025 Editor assigned by journal 18 Jul, 2025 Submission checks completed at journal 18 Jul, 2025 First submitted to journal 16 Jul, 2025 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-7144596","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":514768337,"identity":"259ea1a2-c58f-4af1-94a7-fdaa8ce7291f","order_by":0,"name":"Zonglong Mu","email":"","orcid":"","institution":"Jiangsu Engineering Laboratory of Mine Earthquake Monitoring and Prevention","correspondingAuthor":false,"prefix":"","firstName":"Zonglong","middleName":"","lastName":"Mu","suffix":""},{"id":514768338,"identity":"d71f4ef9-33e4-4441-897c-099b05b7455f","order_by":1,"name":"Chunlong 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This study combines theoretical analysis, numerical simulations and field data to explore the mechanisms behind seismic events induced by ETSHP during coal extraction and the mechanical interactions between ETSHP and the mining-induced \"two zones\" (the fractured zone and bending subsidence zone). The interaction between ETSHP and underlying strata was modeled using Reissner-Mindlin plate theory, with elastic energy calculations to predict the formation and evolution of separation spaces between ETSHP and overlying strata. The key influencing factors such as coal seam thickness, the spacing between coal seam and ETSHP, and the size of the goaf were examined. Results indicate that thinner coal seams, larger coal-rock spacing, and greater goaf lengths lead to larger separation spaces, significantly increasing the risk of mining-induced seismicity. Additionally, the study developed a comprehensive control strategy combining deep-hole roof blasting and surface hydraulic fracturing to mitigate seismic risks. The effectiveness of these techniques was validated through field monitoring, revealing their ability to reduce seismic hazards in mining operations. 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