Research on key block search and reliability of jointed rock slope

Research on key block search and reliability of jointed rock slope | 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 Research on key block search and reliability of jointed rock slope Jiayuan Lou, Yiwen Liang, Dongming Wang, Yanfeng Liao, Liwen Chen This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7475309/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 The key blocks are the core factors affecting jointed rock high slopes. How to quickly identify key blocks in complex rock high-steep slopes and obtain block information is one of the key issues to be solved in engineering. Due to the numerous joint fissures in jointed rock slopes, which bring complexity and variability to the search for key blocks, this paper proposes a targeted and flexible key block search method based on the finiteness theorem and movability theory of block theory. Non-contact photogrammetry technology is used to collect the structural plane information of the slope rock mass in the study area, and the data is imported into Trimble RealWorks software to establish a 3D model of the rock high-steep slope. Through the processing of point cloud data, parameters such as the sliding direction, structural plane intersection points, area, and volume of key blocks in the slope are obtained, and key blocks are searched from a geometric perspective. Finally, according to the full-space stereographic projection theory, movable fissure blocks are identified, and the residual sliding force calculation theory of movable fissure blocks is used to determine the key blocks in the slope free face, and the sliding instability mode of jointed rock slopes is studied. The application of this theory in the Fujian Yongtai high-steep slope project has verified that the method has the advantages of strong pertinence, simple operation, and good adaptation to the judgment conditions specified in relevant codes. The research results provide a scientific basis for further revealing the key blocks of jointed rock slopes. Jointed Rock Mass High-Steep Rock Slope Key Block Point Cloud Data Full-Space Stereographic Projection 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-7475309","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":524578734,"identity":"a9f7c6e6-19d4-4fa3-8183-ac3d27ff2572","order_by":0,"name":"Jiayuan Lou","email":"","orcid":"","institution":"quzhou University","correspondingAuthor":false,"prefix":"","firstName":"Jiayuan","middleName":"","lastName":"Lou","suffix":""},{"id":524578736,"identity":"6a8f3d3b-46bb-4fe2-ab85-2bef18f5f8c5","order_by":1,"name":"Yiwen 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Finally, according to the full-space stereographic projection theory, movable fissure blocks are identified, and the residual sliding force calculation theory of movable fissure blocks is used to determine the key blocks in the slope free face, and the sliding instability mode of jointed rock slopes is studied. The application of this theory in the Fujian Yongtai high-steep slope project has verified that the method has the advantages of strong pertinence, simple operation, and good adaptation to the judgment conditions specified in relevant codes. 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