Boundary delineation and stability assessment of post-inrush water-immersed coal pillars based on integrated microseismic monitoring and field analysis

Boundary delineation and stability assessment of post-inrush water-immersed coal pillars based on integrated microseismic monitoring and field analysis | 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 Boundary delineation and stability assessment of post-inrush water-immersed coal pillars based on integrated microseismic monitoring and field analysis Yugeng Zhang, Heng Zhang, Hongwei Lian, Zhilong He, Wenhao Cao, and 2 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6853771/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 08 Jul, 2025 Read the published version in Scientific Reports → Version 1 posted 10 You are reading this latest preprint version Abstract The stability of water-immersed coal pillars remains a significant challenge in coal pillar research, particularly during post-inundation recovery following water inrush incidents. Due to harsh underground conditions, direct sampling and analysis are often infeasible, hindering both engineering design and operational planning. Consequently, the analysis of coal pillar inundation based on field monitoring data has become one of the few viable approaches. This study utilizes microseismic data collected from panel 1314 at the Xiaoyun Coal Mine to delineate the boundaries of water-affected coal pillars, with the results verified through numerical simulations. Notably, the analysis reveals that coal pillars near the retreat end of the panel exhibit highly complex inundation characteristics, including irregular and abrupt boundary transitions. To better understand this behavior, in-situ stress measurements and bedding separation data were integrated to identify the dominant influencing factors and to elucidate the underlying mechanisms. The findings of this study offer important insights into the spatiotemporal behavior of inundated coal pillars post-inrush, and provide critical guidance for boundary delineation, panel design, and safe mine operations. Physical sciences/Engineering Physical sciences/Engineering/Civil engineering Water-Immersed Coal Pillars Clustering and boundary identification Coal Pillar Stability Multiphysics Simulation Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 08 Jul, 2025 Read the published version in Scientific Reports → Version 1 posted Editorial decision: Revision requested 23 Jun, 2025 Reviews received at journal 23 Jun, 2025 Reviews received at journal 17 Jun, 2025 Reviewers agreed at journal 13 Jun, 2025 Reviewers agreed at journal 13 Jun, 2025 Reviewers invited by journal 13 Jun, 2025 Editor invited by journal 13 Jun, 2025 Editor assigned by journal 13 Jun, 2025 Submission checks completed at journal 12 Jun, 2025 First submitted to journal 09 Jun, 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-6853771","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":470896867,"identity":"883c362f-9140-4efa-aaf1-ff2157746d25","order_by":0,"name":"Yugeng Zhang","email":"","orcid":"","institution":"Guilin University of Technology","correspondingAuthor":false,"prefix":"","firstName":"Yugeng","middleName":"","lastName":"Zhang","suffix":""},{"id":470896868,"identity":"4f9c1a70-914d-4eff-b770-6b41f78dc372","order_by":1,"name":"Heng Zhang","email":"","orcid":"","institution":"Nanyang Institute of 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