Optimization of Soil Behavior Type Index for Evaluating Liquefaction Potential of Fine-Grained Soils in Adapazarı

Optimization of Soil Behavior Type Index for Evaluating Liquefaction Potential of Fine-Grained Soils in Adapazarı | 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 Optimization of Soil Behavior Type Index for Evaluating Liquefaction Potential of Fine-Grained Soils in Adapazarı Mustafa Ozsagir, Caner Erden, Ertan Bol, Aşkın Özocak, Sedat Sert This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4329242/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 This study investigates soil liquefaction potential, specifically focusing on fine-grained soils. We analyze the soil behavior index (Ic) values, emphasizing their role in distinguishing between soils susceptible and resistant to liquefaction. Multiple Ic formulas from the existing literature undergo rigorous examination and refinement to improve accuracy in differentiating soil types. Data from Adapazarı, Türkiye, post-1999 earthquake, and cone penetration test (CPT) results from an acoustic CPTU machine inform the study. Various scenarios, considering 11 literatures from physical properties of the soil, evaluate the potential for liquefaction. The threshold Ic values that best distinguish liquefied and non-liquefied fine-grained soils from each other are determined. Performance assessment identifies the most suitable approach for accurate discrimination. To enhance the chosen scenario, an optimization process determines the optimal coefficients for different Ic formulas. With these optimized Ic formulas, liquefied and non-liquefied soils are analyzed again and the most appropriate threshold values are found. The results show improved accuracy in assessing the liquefaction potential. This study significantly advances liquefaction analysis techniques, introducing novel recommendations, refining criteria, optimizing Ic formulas, and offering insights into nonliquefiable soil classification based on CPT data. The findings aim to improve the safety and effectiveness of geotechnical engineering practices, particularly during seismic events. Cone Penetration Test Liquefaction Analysis Liquefaction Potential Assessment Optimization Soil Behavior Index Full Text Supplementary Files Highlights.docx 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. 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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-4329242","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":300919954,"identity":"e28e5cd8-f47b-450e-9c81-bb60f52b6653","order_by":0,"name":"Mustafa 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We analyze the soil behavior index (Ic) values, emphasizing their role in distinguishing between soils susceptible and resistant to liquefaction. Multiple Ic formulas from the existing literature undergo rigorous examination and refinement to improve accuracy in differentiating soil types. Data from Adapazarı, T\u0026uuml;rkiye, post-1999 earthquake, and cone penetration test (CPT) results from an acoustic CPTU machine inform the study. Various scenarios, considering 11 literatures from physical properties of the soil, evaluate the potential for liquefaction. The threshold Ic values that best distinguish liquefied and non-liquefied fine-grained soils from each other are determined. Performance assessment identifies the most suitable approach for accurate discrimination. To enhance the chosen scenario, an optimization process determines the optimal coefficients for different Ic formulas. With these optimized Ic formulas, liquefied and non-liquefied soils are analyzed again and the most appropriate threshold values are found. The results show improved accuracy in assessing the liquefaction potential. This study significantly advances liquefaction analysis techniques, introducing novel recommendations, refining criteria, optimizing Ic formulas, and offering insights into nonliquefiable soil classification based on CPT data. 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