Development of a magnetic tracking system for monitoring soil movements induced by geohazards

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dc.contributor.author Chen, X en
dc.contributor.author Orense, Rolando en
dc.coverage.spatial Glasgow, U.K. en
dc.date.accessioned 2020-02-10T22:28:12Z en
dc.date.issued 2019-06-25 en
dc.identifier.isbn 9782759890644 en
dc.identifier.issn 2555-0403 en
dc.identifier.uri http://hdl.handle.net/2292/49833 en
dc.description.abstract In the study of geotechnical hazards, such as soil liquefaction and landslides, the analysis of soil movements is always one of the major preoccupations. An efficient movement sensing technique requires the tracking of subsurface soil for the purpose of examining the mechanism involved. A magnetic tracking system is therefore proposed, with permanent magnets as trackers and magnetometers as receivers. When permanent magnets, deployed within the soil to serve as excitation sources, move with soil body during a geotechnical event, they generate static magnetic fields whose flux densities are related with the positions and orientations of the magnets. Magnetometers are used as receivers to detect the generated magnetic fields, which can be further used in calculating the magnets’ locations and orientations based on appropriately developed algorithms. Comparison between situations where the trackers are exposed to air and embedded within soil was conducted to evaluate the influence of soil (wet and dry) on the tracking accuracy. Also, multi-objective tracking is realized by using the particle swarm optimization (PSO) technique combined with interior-point algorithm. The tracking errors are evaluated and applications of the proposed system in small-scale laboratory tests for geohazards are discussed. en
dc.format E3S Web of Conferences. EDP Sciences. 92: 6 pages. 25 Jun 2019 en
dc.publisher EDP Sciences en
dc.relation.ispartof 7th International Symposium on Deformation Characteristics of Geomaterials (IS-Glasgow 2019) en
dc.relation.ispartofseries E3S Web of Conferences en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.rights.uri https://creativecommons.org/licenses/by/4.0/ en
dc.title Development of a magnetic tracking system for monitoring soil movements induced by geohazards en
dc.type Conference Item en
dc.identifier.doi 10.1051/e3sconf/20199217007 en
pubs.volume 92 en
dc.rights.holder Copyright: The authors en
pubs.finish-date 2019-06-28 en
pubs.publication-status Published en
pubs.start-date 2019-06-26 en
dc.rights.accessrights http://purl.org/eprint/accessRights/OpenAccess en
pubs.subtype Proceedings en
pubs.elements-id 779041 en
pubs.org-id Engineering en
pubs.org-id Civil and Environmental Eng en
dc.identifier.eissn 2267-1242 en
pubs.record-created-at-source-date 2019-12-01 en


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