Experimental investigation of dynamic shear stiffness and damping ratio characteristics of marine soils: A case study in Lingdingyang Bay, China

Experimental investigation of dynamic shear stiffness and damping ratio characteristics of marine soils: A case study in Lingdingyang Bay, China | 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 Experimental investigation of dynamic shear stiffness and damping ratio characteristics of marine soils: A case study in Lingdingyang Bay, China Yanshen Wu, Bo Qin, Yushun Fu, Qi Wu This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7949954/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 11 Mar, 2026 Read the published version in Scientific Reports → Version 1 posted 10 You are reading this latest preprint version Abstract Shear wave velocity ( V s ), maximum dynamic shear modulus ( G max ), dynamic shear modulus ratio ( G / G max ), and damping ratio ( l ) are critical parameters for determining seismic ground motion characteristics in submarine sites. Based on the V s profiles measured from boreholes in a specific marine area, this study investigated the applicability of existing empirical equations (linking V s with soil depth, H ) for marine soils in this region. Laboratory resonant column tests were conducted to analyze variations in G max , G / G max , and l at different depths ( H ). The results demonstrated that the quadratic polynomial relationship between V s and H for terrestrial soils is applicable to sandy soils in the bay but not to cohesive marine soils in the same area. By incorporating soil density ( ρ ), a new V s prediction equation suitable for cohesive marine soils in the bay was established. Additionally, marine soils exhibited low shear modulus and high damping ratios, with reduced nonlinearity and hysteresis effects as H increased, leading to higher G and lower l . Analysis based on the Davidenkov model revealed that parameters α and β are insensitive to H , while the characteristic strain g 0 increases linearly with H . These findings provide reliable references for the prediction of V s and the evaluation of dynamic properties of marine soils in the Lingdingyang Bay. Physical sciences/Engineering Earth and environmental sciences/Environmental sciences Earth and environmental sciences/Natural hazards Earth and environmental sciences/Solid earth sciences marine soil shear wave velocity dynamic shear modulus damping ratio soil depth prediction method Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 11 Mar, 2026 Read the published version in Scientific Reports → Version 1 posted Reviews received at journal 14 Nov, 2025 Reviewers agreed at journal 11 Nov, 2025 Reviewers agreed at journal 08 Nov, 2025 Reviewers agreed at journal 07 Nov, 2025 Reviewers agreed at journal 06 Nov, 2025 Reviewers invited by journal 05 Nov, 2025 Editor assigned by journal 04 Nov, 2025 Editor invited by journal 04 Nov, 2025 Submission checks completed at journal 01 Nov, 2025 First submitted to journal 01 Nov, 2025 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-7949954","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":545677285,"identity":"42e88518-67ce-4042-8f69-1f58bcfabc22","order_by":0,"name":"Yanshen Wu","email":"","orcid":"","institution":"China Oilfield Services Ltd. 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characteristics of marine soils: A case study in Lingdingyang Bay, China","fulltext":[],"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":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"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},"keywords":"marine soil, shear wave velocity, dynamic shear modulus, damping ratio, soil depth, prediction method","lastPublishedDoi":"10.21203/rs.3.rs-7949954/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-7949954/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eShear wave velocity (\u003cem\u003eV\u003c/em\u003e\u003csub\u003es\u003c/sub\u003e), maximum dynamic shear modulus (\u003cem\u003eG\u003c/em\u003e\u003csub\u003emax\u003c/sub\u003e), dynamic shear modulus ratio (\u003cem\u003eG\u003c/em\u003e/\u003cem\u003eG\u003c/em\u003e\u003csub\u003emax\u003c/sub\u003e), and damping ratio (\u003cem\u003el\u003c/em\u003e) are critical parameters for determining seismic ground motion characteristics in submarine sites. Based on the \u003cem\u003eV\u003c/em\u003e\u003csub\u003es\u003c/sub\u003e profiles measured from boreholes in a specific marine area, this study investigated the applicability of existing empirical equations (linking \u003cem\u003eV\u003c/em\u003e\u003csub\u003es\u003c/sub\u003e with soil depth, \u003cem\u003eH\u003c/em\u003e) for marine soils in this region. Laboratory resonant column tests were conducted to analyze variations in \u003cem\u003eG\u003c/em\u003e\u003csub\u003emax\u003c/sub\u003e, \u003cem\u003eG\u003c/em\u003e/\u003cem\u003eG\u003c/em\u003e\u003csub\u003emax\u003c/sub\u003e, and \u003cem\u003el\u003c/em\u003e at different depths (\u003cem\u003eH\u003c/em\u003e). The results demonstrated that the quadratic polynomial relationship between \u003cem\u003eV\u003c/em\u003e\u003csub\u003es\u003c/sub\u003e and H for terrestrial soils is applicable to sandy soils in the bay but not to cohesive marine soils in the same area. By incorporating soil density (\u003cem\u003eρ\u003c/em\u003e), a new \u003cem\u003eV\u003c/em\u003e\u003csub\u003es\u003c/sub\u003e prediction equation suitable for cohesive marine soils in the bay was established. Additionally, marine soils exhibited low shear modulus and high damping ratios, with reduced nonlinearity and hysteresis effects as \u003cem\u003eH\u003c/em\u003e increased, leading to higher \u003cem\u003eG\u003c/em\u003e and lower \u003cem\u003el\u003c/em\u003e. Analysis based on the Davidenkov model revealed that parameters \u003cem\u003eα\u003c/em\u003e and \u003cem\u003eβ\u003c/em\u003e are insensitive to \u003cem\u003eH\u003c/em\u003e, while the characteristic strain \u003cem\u003eg\u003c/em\u003e\u003csub\u003e\u003cem\u003e0\u003c/em\u003e\u003c/sub\u003e increases linearly with \u003cem\u003eH\u003c/em\u003e. These findings provide reliable references for the prediction of \u003cem\u003eV\u003c/em\u003e\u003csub\u003es\u003c/sub\u003e and the evaluation of dynamic properties of marine soils in the Lingdingyang Bay.\u003c/p\u003e","manuscriptTitle":"Experimental investigation of dynamic shear stiffness and damping ratio characteristics of marine soils: A case study in Lingdingyang Bay, China","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-11-17 04:44:26","doi":"10.21203/rs.3.rs-7949954/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"editorInvitedReview","content":"","date":"2025-11-14T12:52:04+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"85443408269120694141969299775753250204","date":"2025-11-12T00:44:21+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"293621215650859808498045012721690582773","date":"2025-11-09T01:42:46+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"172775604729655296003861876783967671623","date":"2025-11-07T08:30:17+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"9180003782011056049518887086048560134","date":"2025-11-07T01:10:38+00:00","index":"hide","fulltext":""},{"type":"reviewersInvited","content":"","date":"2025-11-06T03:32:22+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2025-11-04T10:40:31+00:00","index":"","fulltext":""},{"type":"editorInvited","content":"","date":"2025-11-04T09:36:59+00:00","index":"","fulltext":""},{"type":"checksComplete","content":"","date":"2025-11-02T02:40:03+00:00","index":"","fulltext":""},{"type":"submitted","content":"Scientific Reports","date":"2025-11-02T02:36:03+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":"7ba6c917-78ce-4df4-9967-7377cb0f24b5","owner":[],"postedDate":"November 17th, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"published-in-journal","subjectAreas":[{"id":58055223,"name":"Physical sciences/Engineering"},{"id":58055224,"name":"Earth and environmental sciences/Environmental sciences"},{"id":58055225,"name":"Earth and environmental sciences/Natural hazards"},{"id":58055226,"name":"Earth and environmental sciences/Solid earth sciences"}],"tags":[],"updatedAt":"2026-03-16T16:18:56+00:00","versionOfRecord":{"articleIdentity":"rs-7949954","link":"https://doi.org/10.1038/s41598-026-42997-9","journal":{"identity":"scientific-reports","isVorOnly":false,"title":"Scientific Reports"},"publishedOn":"2026-03-11 15:57:47","publishedOnDateReadable":"March 11th, 2026"},"versionCreatedAt":"2025-11-17 04:44:26","video":"","vorDoi":"10.1038/s41598-026-42997-9","vorDoiUrl":"https://doi.org/10.1038/s41598-026-42997-9","workflowStages":[]},"version":"v1","identity":"rs-7949954","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-7949954","identity":"rs-7949954","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}