Title:
Post processing of cone penetration data for assessing seismic ground hazards, with application to the New Madrid seismic zone

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dc.contributor.advisor Mayne, Paul W.
dc.contributor.author Liao, Tianfei en_US
dc.contributor.committeeMember Goldsman, David
dc.contributor.committeeMember Lai, James
dc.contributor.committeeMember Rix, Glenn J.
dc.contributor.committeeMember Santamarina, J. Carlos
dc.contributor.department Civil and Environmental Engineering en_US
dc.date.accessioned 2005-09-16T14:58:51Z
dc.date.available 2005-09-16T14:58:51Z
dc.date.issued 2005-05-17 en_US
dc.description.abstract The seismic cone penetration test (SCPTu) is the most efficient means for geotechnical site characterization and the evaluation of seismic ground hazards. In this thesis, software systems including ShearPro, ClusterPro, and InSituData, are developed to automate post processing of these SCPTu data. ShearPro is developed to automate the post-processing of the shear wave signals. ClusterPro uses the proposed three-dimensional cluster analysis approach for soil stratification. InSituData facilitates the post processing of penetration data for seismic ground hazards analysis. A new three-dimensional soil classification chart is also proposed in this thesis to help discern soil layers that may be subject to seismic ground hazards, such as loose liquefied sands and silty sands. These methods are then applied to SCPTu data collected at previously-identifed paleoliquefaction sites located in the New Madrid Seismic Zone (NMSZ). For liquefaction evaluation, the cyclic stress ratio (CSR) is computed using site response analysis by DeepSoil and a measured profile of shear waves derived from the 30-m SCPTU soundings and deep suspension loggings in AR and TN. The natural resistance of the soil to liquefaction, termed the cyclic resistance ratios (CRRs), is evaluated based on both deterministic procedures and probabilistic procedures. Based on liquefaction evaluation results at selected paleoliquefaction sites, regional CRR criteria for liquefaction are developed for the NMSZ. As even the latest major earthquakes in NMSZ occurred nearly 200 years ago, aging effects might be an important factor to consider in utilizing the liquefaction criteria to assess the seismic parameters associated with the previous earthquakes. The aging effects in the NMSZ were investigated through large scale blast-induced liquefaction tests conducted in the NMSZ. Then a procedure to estimate seismic parameters associated with previous earthquakes is proposed. It utilizes both the liquefaction criteria based on SCPTu tests and the empirical attenuation relations developed for the corresponding regions. The approach is validated through data evaluation related to the 1989 Loma Prieta earthquakes in California and then applied to previous historic earthquakes in the NMSZ. en_US
dc.description.degree Ph.D. en_US
dc.format.extent 20737169 bytes
dc.format.mimetype application/pdf
dc.identifier.uri http://hdl.handle.net/1853/7110
dc.language.iso en_US
dc.publisher Georgia Institute of Technology en_US
dc.subject Earthquakes en_US
dc.subject Shear wave velocity
dc.subject Seismic
dc.subject Liquefaction
dc.subject Cone penetration test
dc.title Post processing of cone penetration data for assessing seismic ground hazards, with application to the New Madrid seismic zone en_US
dc.type Text
dc.type.genre Dissertation
dspace.entity.type Publication
local.contributor.corporatename School of Civil and Environmental Engineering
local.contributor.corporatename College of Engineering
relation.isOrgUnitOfPublication 88639fad-d3ae-4867-9e7a-7c9e6d2ecc7c
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
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