Study on the law of stress distribution in the presence of remaining coal pillar in a close-distance coal seam and the reasonable location of the roadway

Study on the law of stress distribution in the presence of remaining coal pillar in a close-distance coal seam and the reasonable location of the roadway | 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 Study on the law of stress distribution in the presence of remaining coal pillar in a close-distance coal seam and the reasonable location of the roadway Xiao-Xiang Wei, Zhi-Qiang Zhao, Yin-Wei Wang, Xiao-He Wang, Zi-Long Hui This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5346852/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 13 Mar, 2025 Read the published version in Scientific Reports → Version 1 posted 11 You are reading this latest preprint version Abstract In order to reveal the impact of remaining coal pillar on roadway layout of the lower seam after the upper part of the close coal seam is reversely mined, theoretical analysis and numerical simulation are conducted in this paper. With the roadway to be excavated in a mine located in Shanxi as the research object, theoretical analysis and numerical simulation are performed to explore the evolution of stress field in the lower coal seam under the influence of the leftover coal pillar. Also, an analysis is conducted on the mechanism of deformation and destruction occurring to the roadway in the lower coal seam, so as to determine the rational layout of roadway in the lower coal seam and the optimal parameters related to roadway support. The study area is divided into two zones by considering the main influencing factors. Allowing for the mode of mining and to ensure safety, it is recommended that the roadway should be positioned at the edge of the H-II area, such as at the location that is 15-20m or 40-45m away from the study area. Taking into account these influencing factors, the original tunnel support parameters are optimized. Earth and environmental sciences/Solid earth sciences/Mineralogy Earth and environmental sciences/Environmental sciences/Environmental impact Proximate coal seam Legacy coal pillar Stress distribution Butterfly damage theory Backcuts layout Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 13 Mar, 2025 Read the published version in Scientific Reports → Version 1 posted Editorial decision: Revision requested 15 Jan, 2025 Reviews received at journal 10 Jan, 2025 Reviewers agreed at journal 09 Jan, 2025 Reviews received at journal 02 Dec, 2024 Reviewers agreed at journal 26 Nov, 2024 Reviewers agreed at journal 26 Nov, 2024 Reviewers invited by journal 26 Nov, 2024 Editor assigned by journal 26 Nov, 2024 Editor invited by journal 18 Nov, 2024 Submission checks completed at journal 16 Nov, 2024 First submitted to journal 28 Oct, 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-5346852","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":384999094,"identity":"017a1c99-2d94-49e9-a617-94a6b64773f3","order_by":0,"name":"Xiao-Xiang Wei","email":"","orcid":"","institution":"China University of Mining and Technology (Beijing)","correspondingAuthor":false,"prefix":"","firstName":"Xiao-Xiang","middleName":"","lastName":"Wei","suffix":""},{"id":384999095,"identity":"6a3615d8-e9aa-4f59-a612-ec2c98bc6628","order_by":1,"name":"Zhi-Qiang 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