Mechanism and control strategies of asymmetric floor heave under dynamic pressure in roof-cutting gob-side entry retaining: A case study

Mechanism and control strategies of asymmetric floor heave under dynamic pressure in roof-cutting gob-side entry retaining: A case study | 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 Mechanism and control strategies of asymmetric floor heave under dynamic pressure in roof-cutting gob-side entry retaining: A case study Haohao Wang, Kunyu Liu, Zhujun Shao, Dongshan Yang, Shukun Zhang, and 2 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-9357741/v1 This work is licensed under a CC BY 4.0 License Status: Under Revision Version 1 posted 9 You are reading this latest preprint version Abstract Roof cutting for gob-side entry retaining actively modifies the structural configuration of the roof and the two ribs, which intensifies the inherent asymmetry in both the surrounding rock structure and the stress distribution. This structural evolution makes asymmetric floor heave under dynamic pressure a critical challenge. In this study, the mechanisms and control strategies for asymmetric floor heave in roadways under dynamic pressure were investigated through physical model tests, theoretical analysis, and field measurements, followed by a successful engineering application at the Zhaogu No. 1 Mine. Physical model tests verified the advantages of roof cutting in controlling surrounding rock deformation and revealed the evolutionary process of tensile strain in the roadway floor from shallow to deep strata. A mechanical model of the floor under asymmetric dynamic pressure from the ribs was established, and the failure depth and plastic zone width after roof cutting were derived using Rankine’s earth pressure theory. Furthermore, a multi-level coupled pressure-equalizing control scheme was proposed, incorporating roof pre-splitting, constant resistance & yielding support for the roof and coal ribs, and inverted floor beam support for the floor. Field results demonstrated that this multi-level coupled scheme reduced floor heave by 46.1%, effectively mitigating asymmetric deformation and significantly enhancing roadway stability while optimizing the cost-effectiveness of gob-side entry retaining. Physical sciences/Energy science and technology Physical sciences/Engineering Roadways under dynamic pressure Asymmetric floor heave Inverted floor beam Pressure-equalizing support Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Revision Version 1 posted Editorial decision: Revision requested 07 May, 2026 Reviews received at journal 07 May, 2026 Reviews received at journal 01 May, 2026 Reviewers agreed at journal 01 May, 2026 Reviewers agreed at journal 24 Apr, 2026 Reviewers invited by journal 21 Apr, 2026 Editor assigned by journal 20 Apr, 2026 Submission checks completed at journal 13 Apr, 2026 First submitted to journal 13 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. 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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-9357741","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":631269542,"identity":"06d31476-9d79-4c7e-bdde-8e6ab8939619","order_by":0,"name":"Haohao 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This structural evolution makes asymmetric floor heave under dynamic pressure a critical challenge. In this study, the mechanisms and control strategies for asymmetric floor heave in roadways under dynamic pressure were investigated through physical model tests, theoretical analysis, and field measurements, followed by a successful engineering application at the Zhaogu No. 1 Mine. Physical model tests verified the advantages of roof cutting in controlling surrounding rock deformation and revealed the evolutionary process of tensile strain in the roadway floor from shallow to deep strata. A mechanical model of the floor under asymmetric dynamic pressure from the ribs was established, and the failure depth and plastic zone width after roof cutting were derived using Rankine\u0026rsquo;s earth pressure theory. Furthermore, a multi-level coupled pressure-equalizing control scheme was proposed, incorporating roof pre-splitting, constant resistance \u0026amp; yielding support for the roof and coal ribs, and inverted floor beam support for the floor. Field results demonstrated that this multi-level coupled scheme reduced floor heave by 46.1%, effectively mitigating asymmetric deformation and significantly enhancing roadway stability while optimizing the cost-effectiveness of gob-side entry retaining.\u003c/p\u003e","manuscriptTitle":"Mechanism and control strategies of asymmetric floor heave under dynamic pressure in roof-cutting gob-side entry retaining: A case study","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2026-04-30 11:30:04","doi":"10.21203/rs.3.rs-9357741/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Revision requested","date":"2026-05-07T18:05:35+00:00","index":"","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2026-05-07T07:40:34+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2026-05-01T22:26:40+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"189142712947218945148457186264713921151","date":"2026-05-01T21:51:18+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"223543848720946398613190741185319173261","date":"2026-04-24T06:36:18+00:00","index":"hide","fulltext":""},{"type":"reviewersInvited","content":"","date":"2026-04-21T17:09:31+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2026-04-20T17:04:24+00:00","index":"","fulltext":""},{"type":"checksComplete","content":"","date":"2026-04-13T23:07:24+00:00","index":"","fulltext":""},{"type":"submitted","content":"Scientific Reports","date":"2026-04-13T22:48:34+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":"8d7a0a70-76d0-4430-8600-9767f525197e","owner":[],"postedDate":"April 30th, 2026","published":true,"recentEditorialEvents":[{"type":"decision","content":"Revision requested","date":"2026-05-07T18:05:35+00:00","index":"","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2026-05-07T07:40:34+00:00","index":46,"fulltext":""},{"type":"editorInvitedReview","content":"","date":"2026-05-01T22:26:40+00:00","index":42,"fulltext":""},{"type":"reviewerAgreed","content":"189142712947218945148457186264713921151","date":"2026-05-01T21:51:18+00:00","index":41,"fulltext":""}],"rejectedJournal":[],"revision":"","amendment":"","status":"in-revision","subjectAreas":[{"id":67190048,"name":"Physical sciences/Energy science and technology"},{"id":67190049,"name":"Physical sciences/Engineering"}],"tags":[],"updatedAt":"2026-05-07T18:09:53+00:00","versionOfRecord":[],"versionCreatedAt":"2026-04-30 11:30:04","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-9357741","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-9357741","identity":"rs-9357741","version":["v1"]},"buildId":"XKTyCvWXoU3ODBz1xrDgd","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}