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dc.rights.licenseRestricted to current Rensselaer faculty, staff and students. Access inquiries may be directed to the Rensselaer Libraries.
dc.contributorBennett, Victoria Gene
dc.contributorAbdoun, Tarek
dc.contributorZeghal, Mourad
dc.contributor.authorO'Meara, Kathleen Mary
dc.date.accessioned2021-11-03T08:13:06Z
dc.date.available2021-11-03T08:13:06Z
dc.date.created2014-10-08T10:28:53Z
dc.date.issued2014-08
dc.identifier.urihttps://hdl.handle.net/20.500.13015/1177
dc.descriptionAugust 2014
dc.descriptionSchool of Engineering
dc.description.abstractDue to the increase in intensity and frequency of natural disasters such as Hurricane Katrina (2005) and Hurricane Sandy (2012), the need for reliable civil infrastructure such as levees, dykes, and dams is demanded now more than ever to protect highly developed communities. It is first necessary to monitor the health of and focus on preserving and maintaining existing levees. These geotechnical systems depend immensely on the properties of the subsurface and there is difficulty in analyzing soil behavior because of the variability in these soil properties. This leads to the need for practical, efficient, and automatic data collection instrumentation capable of measuring in-situ data, in real-time, at flood control infrastructure requiring urgent attention.
dc.description.abstractA complete set of SAAs and SAAPs, extensometers and piezometers, and multiple absolute and differential GPS units were installed at two test sites in New Orleans, LA. The first site is London Avenue Canal which is a drainage canal in urban New Orleans which is notoriously known for levee breaches that caused massive flooding during Hurricane Katrina. Suggested by the US Army Corps of Engineers is V-Line Levee in rural, swampland Louisiana which is a recently uplifted levee where deformation is expected. At this time, it is too soon to present a conclusion regarding the north and east data plots for the absolute GPS monitoring unit. The height aspect of the absolute monitoring unit displaying settlement values presented a reliable surface displacement that shows promise for future comparisons to Interferometric Satellite Aperture Radar systems. The SAAPs show promise for future use with SAAs in other field-application of real-time levee monitoring or other early warning management systems for geotechnical infrastructure.
dc.description.abstractMeasurand Shape Accel Arrays (SAAs) and Shape Accel Array Piezometers (SAAPs), Geokon Extensometers and Piezometers, NovAtel Differential GPS, and JAVAD Absolute GPS instruments meet this need. The SAAs detect lateral displacement through MEMS (Micro-Electro-Mechanical Systems) accelerometers to autonomously create three-dimensional profiles of ground deformations. The SAAPs monitor fluid and pore pressures through a traditional vibrating wire piezometer that is modified with a microprocessor to convert this data to digital data in real-time. The extensometers are in a borehole with piezometers monitoring subsidence and fluid pressure. The differential GPS acquires deformation in the north, east, and height directions relative to a reference station. There is concern that the reference station may not be stable if New Orleans is globally settling. The absolute GPS provides absolute displacement measurements in the north, east, and height directions to work in parallel with the differential GPS. The SAAPs and absolute GPS are advances in geotechnical instrumentation developed through NIST. The goal is to compare the data from these advances to data acquired from traditional instrumentation such as the SAAs, extensometers, and piezometers.
dc.language.isoENG
dc.publisherRensselaer Polytechnic Institute, Troy, NY
dc.relation.ispartofRensselaer Theses and Dissertations Online Collection
dc.subjectCivil engineering
dc.titleField application of real-time levee monitoring for health assessment in New Orleans, Louisiana
dc.typeElectronic thesis
dc.typeThesis
dc.digitool.pid172956
dc.digitool.pid172957
dc.digitool.pid172958
dc.rights.holderThis electronic version is a licensed copy owned by Rensselaer Polytechnic Institute, Troy, NY. Copyright of original work retained by author.
dc.description.degreeMS
dc.relation.departmentDept. of Civil and Environmental Engineering


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