Deformation and Instability Properties of Cemented Gangue Backfill Column under Step-By-Step Load in Constructional Backfill Mining

Deformation and Instability Properties of Cemented Gangue Backfill Column under Step-By-Step Load in Constructional Backfill Mining | 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 Deformation and Instability Properties of Cemented Gangue Backfill Column under Step-By-Step Load in Constructional Backfill Mining Yuxia Guo, Hongyu Ran, Guorui Feng, Xianjie Du, Yonghui Zhao, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-335036/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 09 Aug, 2021 Read the published version in Environmental Science and Pollution Research → Version 1 posted 5 You are reading this latest preprint version Abstract Constructional backfill mining with cemented gangue backfill column can solve the environmental issues caused by mining activities and the accumulation of waste gangue at a low cost. To study the deformation and instability properties of cemented gangue backfill columns during the advancement of coal mining face, five step-by-step loading paths were adapted to mimic the different loading processes of the roof. The lateral deformation at different heights and axial deformation of the sample were monitored. The results show that the deformation and instability of the backfill column have the properties of loading paths and are affected by the step-by-step loading path. When stress-strength ratio (SSR) is less than 0.6, the lateral of backfill column shrinks during the creeping process. In high-stress levels, lateral creep strain develops faster than axial creep strain. The backfill column has characteristics of axial creep hardening and lateral creep softening during the step-by-step loading process. The instantaneous deformation modulus and instantaneous Poisson’s ratio show an upward trend. The bearing capacity of backfill column under the step-by-step load is related to loading paths and is no less than uniaxial compressive strength. The non-uniformity of the lateral deformation of backfill column leads to excessive localized deformation that mainly occurs in the middle, causing the overall instability. The development of cracks of backfill column under step-by-step load could be divided into 4 stages according to SSR. Under different step-by-step loading paths, the axial creep strain rate is nearly a constant before entering the accelerated creep stage. A nonlinear creep constitutive model with a creep strain rate trigger was proposed to depict the development of axial strain under step-by-step load. This research will provide a scientific reference for the design of the advancing distance and cycle for the hydraulic support, and reinforcement of the backfill column. Environmental Chemistry Toxicology Cemented gangue backfill column step-by-step load deformation instability nonlinear creep constitutive model Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Full Text Cite Share Download PDF Status: Published Journal Publication published 09 Aug, 2021 Read the published version in Environmental Science and Pollution Research → Version 1 posted Editorial decision: Minor Revision 27 Jun, 2021 Reviewers invited by journal 09 Jun, 2021 Reviews received at journal 08 Jun, 2021 Editor assigned by journal 16 Mar, 2021 First submitted to journal 15 Mar, 2021 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. 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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-335036","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":32451842,"identity":"80a6eda1-41fd-4f39-9d09-511078a13f4b","order_by":0,"name":"Yuxia 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1","display":"","copyAsset":false,"role":"figure","size":805508,"visible":true,"origin":"","legend":"Schematic diagram of the unconfined backfill columns in constructional backfill mining: (a) layout of the unconfined backfill column, (b) load on the unconfined backfill column.","description":"","filename":"fig1.png","url":"https://assets-eu.researchsquare.com/files/rs-335036/v1/a11bb6ff961df9701d3eb818.png"},{"id":10354516,"identity":"dad4bddb-66f0-48f7-8488-656ca31c0943","added_by":"auto","created_at":"2021-06-14 19:21:26","extension":"png","order_by":2,"title":"Figure 2","display":"","copyAsset":false,"role":"figure","size":646176,"visible":true,"origin":"","legend":"Morphology of raw material and test samples.","description":"","filename":"fig2.png","url":"https://assets-eu.researchsquare.com/files/rs-335036/v1/c88afc02676e1d2331cac28b.png"},{"id":10354513,"identity":"fb546892-b30f-4ae6-b400-3a464661587a","added_by":"auto","created_at":"2021-06-14 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7","display":"","copyAsset":false,"role":"figure","size":120036,"visible":true,"origin":"","legend":"(a) Strain–time curve under step-by-step load. (b) Strain–time curve during the creep instability process.","description":"","filename":"fig7.png","url":"https://assets-eu.researchsquare.com/files/rs-335036/v1/599802948e9558a9b8458ef1.png"},{"id":10354900,"identity":"769a4bb8-e116-45f8-8b07-8dee4e946a0b","added_by":"auto","created_at":"2021-06-14 19:30:25","extension":"png","order_by":8,"title":"Figure 8","display":"","copyAsset":false,"role":"figure","size":64010,"visible":true,"origin":"","legend":"Development of instantaneous deformation modulus.","description":"","filename":"fig8.png","url":"https://assets-eu.researchsquare.com/files/rs-335036/v1/ff3afce0f691413a6ffca3ac.png"},{"id":10354722,"identity":"64675938-647d-4839-9627-5a93a98e7244","added_by":"auto","created_at":"2021-06-14 19:27:26","extension":"png","order_by":9,"title":"Figure 9","display":"","copyAsset":false,"role":"figure","size":111173,"visible":true,"origin":"","legend":"(a) Specific creep strain at different stress–strength ratios; (b) Accumulation of creep strain.","description":"","filename":"fig9.png","url":"https://assets-eu.researchsquare.com/files/rs-335036/v1/46f86377102c60c9d78e5317.png"},{"id":10354723,"identity":"2ad6c130-9e59-4a20-8ffe-bb75d00535eb","added_by":"auto","created_at":"2021-06-14 19:27:26","extension":"png","order_by":10,"title":"Figure 10","display":"","copyAsset":false,"role":"figure","size":192389,"visible":true,"origin":"","legend":"Development of (a) instantaneous strain and (b) creep strain of group B under step-by-step load.","description":"","filename":"fig10.png","url":"https://assets-eu.researchsquare.com/files/rs-335036/v1/f78ff869858095799ff9a90e.png"},{"id":10354515,"identity":"547a356c-1f82-4a63-b327-3663006ea123","added_by":"auto","created_at":"2021-06-14 19:21:26","extension":"png","order_by":11,"title":"Figure 11","display":"","copyAsset":false,"role":"figure","size":380664,"visible":true,"origin":"","legend":"(a) Curve of instantaneous Poisson’s ratio; (b) Accumulation of the lateral strain of sample B.","description":"","filename":"fig11.png","url":"https://assets-eu.researchsquare.com/files/rs-335036/v1/7595674bdde2df83185698a2.png"},{"id":10354518,"identity":"0bff4407-ba8d-405e-9f94-cb700df507e0","added_by":"auto","created_at":"2021-06-14 19:21:26","extension":"png","order_by":12,"title":"Figure 12","display":"","copyAsset":false,"role":"figure","size":130315,"visible":true,"origin":"","legend":"Schematic description of the production of cracks and cracking processes.","description":"","filename":"fig12.png","url":"https://assets-eu.researchsquare.com/files/rs-335036/v1/08bfe60dc5dd74c819bb2fa9.png"},{"id":10354724,"identity":"aecc99c8-4474-4556-a64c-9b771eff0946","added_by":"auto","created_at":"2021-06-14 19:27:26","extension":"png","order_by":13,"title":"Figure 13","display":"","copyAsset":false,"role":"figure","size":1065943,"visible":true,"origin":"","legend":"Failure forms of the CGBM samples.","description":"","filename":"fig13.png","url":"https://assets-eu.researchsquare.com/files/rs-335036/v1/dcdb099b221d00447cc6c7dc.png"},{"id":10354613,"identity":"82fd0d8e-10ad-4f26-a3f3-e6c249134c2d","added_by":"auto","created_at":"2021-06-14 19:24:26","extension":"png","order_by":14,"title":"Figure 14","display":"","copyAsset":false,"role":"figure","size":48568,"visible":true,"origin":"","legend":"Modified viscoelastic-plastic model for the creep of CGBM.","description":"","filename":"fig14.png","url":"https://assets-eu.researchsquare.com/files/rs-335036/v1/fcd117008d83f26dc2ce8573.png"},{"id":10354519,"identity":"47c6c42c-5394-4650-a79c-3a0d16e37db3","added_by":"auto","created_at":"2021-06-14 19:21:26","extension":"png","order_by":15,"title":"Figure 15","display":"","copyAsset":false,"role":"figure","size":71844,"visible":true,"origin":"","legend":"Comparison of the experimental and simulation results of samples (a) B and (b) E.","description":"","filename":"fig15.png","url":"https://assets-eu.researchsquare.com/files/rs-335036/v1/b48546a50ee59bbf2d851e56.png"},{"id":13646045,"identity":"391ec40f-f8ec-40a4-aa0c-11169e8f97e2","added_by":"auto","created_at":"2021-09-17 09:22:22","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1719181,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-335036/v1_covered.pdf"},{"id":10354901,"identity":"6d8aea3f-778d-43c0-b6fe-e6ef1911de03","added_by":"auto","created_at":"2021-06-14 19:30:37","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1710259,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-335036/v1_covered.pdf"}],"financialInterests":"","formattedTitle":"\u003cp\u003eDeformation and Instability Properties of Cemented Gangue Backfill Column under Step-By-Step Load in Constructional Backfill Mining\u003c/p\u003e","fulltext":[{"header":"Full Text","content":"This preprint is available for \u003ca href='/article/rs-335036/latest.pdf' target='_blank'\u003edownload as a PDF\u003c/a\u003e."}],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":true,"isPdf":false,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"environmental-science-and-pollution-research","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"espr","sideBox":"Learn more about [Environmental Science and Pollution Research](https://www.springer.com/journal/11356)","snPcode":"11356","submissionUrl":"https://submission.nature.com/new-submission/11356/3","title":"Environmental Science and Pollution Research","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"Cemented gangue backfill column, step-by-step load, deformation, instability, nonlinear creep constitutive model","lastPublishedDoi":"10.21203/rs.3.rs-335036/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-335036/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eConstructional backfill mining with cemented gangue backfill column can solve the environmental issues caused by mining activities and the accumulation of waste gangue at a low cost. To study the deformation and instability properties of cemented gangue backfill columns during the advancement of coal mining face, five step-by-step loading paths were adapted to mimic the different loading processes of the roof. The lateral deformation at different heights and axial deformation of the sample were monitored. The results show that the deformation and instability of the backfill column have the properties of loading paths and are affected by the step-by-step loading path. When stress-strength ratio (SSR) is less than 0.6, the lateral of backfill column shrinks during the creeping process. In high-stress levels, lateral creep strain develops faster than axial creep strain. The backfill column has characteristics of axial creep hardening and lateral creep softening during the step-by-step loading process. The instantaneous deformation modulus and instantaneous Poisson’s ratio show an upward trend. The bearing capacity of backfill column under the step-by-step load is related to loading paths and is no less than uniaxial compressive strength. The non-uniformity of the lateral deformation of backfill column leads to excessive localized deformation that mainly occurs in the middle, causing the overall instability. The development of cracks of backfill column under step-by-step load could be divided into 4 stages according to SSR. Under different step-by-step loading paths, the axial creep strain rate is nearly a constant before entering the accelerated creep stage. A nonlinear creep constitutive model with a creep strain rate trigger was proposed to depict the development of axial strain under step-by-step load. This research will provide a scientific reference for the design of the advancing distance and cycle for the hydraulic support, and reinforcement of the backfill column.\u003c/p\u003e","manuscriptTitle":"Deformation and Instability Properties of Cemented Gangue Backfill Column under Step-By-Step Load in Constructional Backfill Mining","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2021-06-14 19:21:23","doi":"10.21203/rs.3.rs-335036/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Minor Revision","date":"2021-06-27T18:14:23+00:00","index":"","fulltext":""},{"type":"reviewersInvited","content":"","date":"2021-06-10T00:00:00+00:00","index":"","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2021-06-09T00:00:00+00:00","index":0,"fulltext":""},{"type":"editorAssigned","content":"","date":"2021-03-17T00:00:00+00:00","index":"","fulltext":""},{"type":"submitted","content":"Environmental Science and Pollution Research","date":"2021-03-15T21:55:46+00:00","index":"","fulltext":""}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"environmental-science-and-pollution-research","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"espr","sideBox":"Learn more about [Environmental Science and Pollution Research](https://www.springer.com/journal/11356)","snPcode":"11356","submissionUrl":"https://submission.nature.com/new-submission/11356/3","title":"Environmental Science and Pollution Research","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false}}],"origin":"","ownerIdentity":"b246b2f1-8ccc-4029-8a1a-68637ceaac2a","owner":[],"postedDate":"June 14th, 2021","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"published-in-journal","subjectAreas":[{"id":5003448,"name":"Environmental Chemistry"},{"id":5003449,"name":"Toxicology"}],"tags":[],"updatedAt":"2021-08-22T15:30:59+00:00","versionOfRecord":{"articleIdentity":"rs-335036","link":"https://doi.org/10.1007/s11356-021-15638-z","journal":{"identity":"environmental-science-and-pollution-research","isVorOnly":false,"title":"Environmental Science and Pollution Research"},"publishedOn":"2021-08-09 15:04:48","publishedOnDateReadable":"August 9th, 2021"},"versionCreatedAt":"2021-06-14 19:21:23","video":"","vorDoi":"10.1007/s11356-021-15638-z","vorDoiUrl":"https://doi.org/10.1007/s11356-021-15638-z","workflowStages":[]},"version":"v1","identity":"rs-335036","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-335036","identity":"rs-335036","version":["v1"]},"buildId":"cBFmMYwuxLRRLfASyISRj","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}