Quantitative representation of dynamic properties and internal fissure in deep-seated damaged granite

Quantitative representation of dynamic properties and internal fissure in deep-seated damaged granite | 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 Quantitative representation of dynamic properties and internal fissure in deep-seated damaged granite Huaibao Chu, Luyang Chen, Donghui Wang, Bo Sun, Zilong Wen, Haixia Wei This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4895085/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Understanding the dynamics of damaged rock masses and the evolution of internal fissures is beneficial to deep engineering. This manuscript takes the common granite in deep engineering as the research object. By applying impact loads, three initial damage states of rock samples were created, and Hopkinson impact tests were conducted at four confining pressure levels to analyze the dynamic characteristics of damaged granite. Selected rock samples of one type of damaged granite after impact at different confining pressures for CT scanning tests, and three-dimensional models of the rock samples were constructed using Avizo software to analyze the effect of confining pressure on the evolution of granite fissure patterns and to quantitatively represent the changes in internal fissure and three-dimensional fractal dimension. The results indicate that with increasing damage, the peak stress and peak modulus of the damaged granite decrease, while the peak strain increases. When the initial damage is consistent, all three parameters increase with the rising confining pressure. Confining pressure alters the number and development direction of internal fissures in granite. Higher confining pressure results in fewer fissures, with their development direction shifting more towards the center of the sample and becoming straighter. As confining pressure increases, the overall volume of three-dimensional fissures in the rock sample gradually decreases, the volume and maximum length of through fissures decrease, the proportion of independent fissures increases, and the three-dimensional fractal dimension continuously decreases. This research provides valuable theoretical guidance for supporting and constructing surrounding rock in deep engineering projects. Damaged rocks Dynamic properties Three-dimensional reconstruction Quantitative representation of fissure Three-dimensional fractal dimension Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted 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. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. 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-4895085","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":349758401,"identity":"d40e4e88-4bac-421a-8436-246c5fad796c","order_by":0,"name":"Huaibao Chu","email":"","orcid":"","institution":"Henan Polytechnic University","correspondingAuthor":false,"prefix":"","firstName":"Huaibao","middleName":"","lastName":"Chu","suffix":""},{"id":349758402,"identity":"bad28548-850d-412c-8789-21b56791d741","order_by":1,"name":"Luyang Chen","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAyUlEQVRIiWNgGAWjYDACCSB+AGbxP3xAvJYEMIuH2YBkLWwSROngn9187EFi22F5c/61xyrelDHI84sdIGDJnWPpBkAthjtnvEu7Oeccg+HM2Qn4tRhI5JhJALUwbrhxwOw2bxtDgsFtglryv4G02IO0FBOpJYcNpCVxw/keM2aitEjcSDOTSDiXnrzhBluy5JxzEoT9wj8j+ZnEhzJr2w3nDx/88KbMRp5fmoAWKGgG2pdAfNSAQB3QvgMgLUTrGAWjYBSMghEEAJ9+Rp/THX5CAAAAAElFTkSuQmCC","orcid":"","institution":"Henan Polytechnic University","correspondingAuthor":true,"prefix":"","firstName":"Luyang","middleName":"","lastName":"Chen","suffix":""},{"id":349758407,"identity":"86a37350-18eb-44e1-8858-15a10600ea74","order_by":2,"name":"Donghui Wang","email":"","orcid":"","institution":"The Second Company of China Construction Second Engrg Bureau Ltd","correspondingAuthor":false,"prefix":"","firstName":"Donghui","middleName":"","lastName":"Wang","suffix":""},{"id":349758409,"identity":"eea792bd-a63d-482b-9b7f-2cb3dc9f8082","order_by":3,"name":"Bo Sun","email":"","orcid":"","institution":"Henan Polytechnic University","correspondingAuthor":false,"prefix":"","firstName":"Bo","middleName":"","lastName":"Sun","suffix":""},{"id":349758410,"identity":"270d6be3-0b5b-421b-9666-906574b96701","order_by":4,"name":"Zilong Wen","email":"","orcid":"","institution":"Henan Polytechnic University","correspondingAuthor":false,"prefix":"","firstName":"Zilong","middleName":"","lastName":"Wen","suffix":""},{"id":349758411,"identity":"a805d425-433b-4c66-b3ff-69d3dc45e6fe","order_by":5,"name":"Haixia Wei","email":"","orcid":"","institution":"Henan Polytechnic University","correspondingAuthor":false,"prefix":"","firstName":"Haixia","middleName":"","lastName":"Wei","suffix":""}],"badges":[],"createdAt":"2024-08-11 12:08:41","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4895085/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4895085/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":66712762,"identity":"64e425d8-5cdd-42e6-a81d-f8d6b83705a6","added_by":"auto","created_at":"2024-10-15 18:31:46","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1509030,"visible":true,"origin":"","legend":"","description":"","filename":"manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4895085/v1_covered_538508b4-9723-4b69-b986-3787ef347545.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Quantitative representation of dynamic properties and internal fissure in deep-seated damaged granite","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Damaged rocks, Dynamic properties, Three-dimensional reconstruction, Quantitative representation of fissure, Three-dimensional fractal dimension","lastPublishedDoi":"10.21203/rs.3.rs-4895085/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4895085/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"Understanding the dynamics of damaged rock masses and the evolution of internal fissures is beneficial to deep engineering. This manuscript takes the common granite in deep engineering as the research object. By applying impact loads, three initial damage states of rock samples were created, and Hopkinson impact tests were conducted at four confining pressure levels to analyze the dynamic characteristics of damaged granite. Selected rock samples of one type of damaged granite after impact at different confining pressures for CT scanning tests, and three-dimensional models of the rock samples were constructed using Avizo software to analyze the effect of confining pressure on the evolution of granite fissure patterns and to quantitatively represent the changes in internal fissure and three-dimensional fractal dimension. The results indicate that with increasing damage, the peak stress and peak modulus of the damaged granite decrease, while the peak strain increases. When the initial damage is consistent, all three parameters increase with the rising confining pressure. 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