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Deformation and Failure Modes of Large-Span Roadway Roof and Critical Time-Effective Roof Control Principle Based on Area Support

dc.contributor.authorJin Wang
dc.contributor.authorNong Zhang
dc.contributor.authorJiaguang Kan
dc.contributor.authorZhengzheng Xie
dc.contributor.authorPeng Wang
dc.contributor.authorDongjiang Pan
dc.contributor.authorFengchun Mu
dc.contributor.authorGuangzhen Cui
dc.contributor.authorSongqiang Qiu
dc.contributor.otherState Key Laboratory of Coal Resources and Safe Mining, School of Mines, China University of Mining and Technology, Xuzhou 221116, China
dc.contributor.otherState Key Laboratory of Coal Resources and Safe Mining, School of Mines, China University of Mining and Technology, Xuzhou 221116, China
dc.contributor.otherState Key Laboratory of Coal Resources and Safe Mining, School of Mines, China University of Mining and Technology, Xuzhou 221116, China
dc.contributor.otherState Key Laboratory of Coal Resources and Safe Mining, School of Mines, China University of Mining and Technology, Xuzhou 221116, China
dc.contributor.otherState Key Laboratory of Coal Resources and Safe Mining, School of Mines, China University of Mining and Technology, Xuzhou 221116, China
dc.contributor.otherSchool of Civil Engineering, Xuzhou University of Technology, Xuzhou 221018, China
dc.contributor.otherState Key Laboratory of Coal Resources and Safe Mining, School of Mines, China University of Mining and Technology, Xuzhou 221116, China
dc.contributor.otherState Key Laboratory of Coal Resources and Safe Mining, School of Mines, China University of Mining and Technology, Xuzhou 221116, China
dc.contributor.otherSchool of Mathematics, Jiangsu Center for Applied Mathematics, Xuzhou 221116, China
dc.date.accessioned2025-08-27T14:07:02Z
dc.date.accessioned2025-10-08T08:46:09Z
dc.date.available2025-10-08T08:46:09Z
dc.date.issued01-08-2025
dc.identifier.urihttp://digilib.fisipol.ugm.ac.id/repo/handle/15717717/37073
dc.description.abstractTo address the challenges of controlling coal roadway roofs with large spans, this study employed theoretical analysis, mechanical modeling, numerical simulation, and field testing to investigate the deformation and failure modes of large-span roadway roofs. An elastic foundation beam model for roof deformation under area support was established. The critical time-effective roof control principle and technology based on area support were proposed. Numerical simulation research and field trials of critical time-effective roof control using area support were conducted in the tailgate (open-off cut) of Panel II513 at the Huaibei Shuanglong Coal Mine. The results indicate that roof stability decreases with decreasing rock beam thickness and increasing span. The deformation and failure modes of large-span roadway roofs include anchor failure within the anchored zone and delamination outside the anchored zone. Case studies based on the mechanical model, numerical simulations, and field tests all demonstrate that the critical time-effective roof control technology utilizing hydraulic support for area support can significantly reduce roof deflection deformation.
dc.language.isoEN
dc.publisherMDPI AG
dc.subject.lccTechnology
dc.titleDeformation and Failure Modes of Large-Span Roadway Roof and Critical Time-Effective Roof Control Principle Based on Area Support
dc.typeArticle
dc.description.keywordslarge-span roadway
dc.description.keywordselastic foundation beam model
dc.description.keywordsarea support
dc.description.keywordsspan reduction
dc.description.doi10.3390/app15168836
dc.title.journalApplied Sciences
dc.identifier.e-issn2076-3417
dc.identifier.oaioai:doaj.org/journal:9c7b42d2af324288ace99635b5d469b7
dc.journal.infoVolume 15, Issue 16


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