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doi:10.2204/iodp.proc.308.210.2009 SummaryTriaxial strength experiments on 18 specimens from Sites U1322 and U1324 show that internal friction angle and normalized undrained shear strength generally decrease with increasing vertical consolidation stress. Internal friction angle ranges from 17° to 29° and normalized undrained shear strength ranges from 0.36 to 0.21 at maximum shear for vertical consolidation stresses from 230 to 1840 kPa. Lateral stress ratios do not exhibit any relation with vertical consolidation stress and range from 0.50 to 0.73 prior to undrained shearing. In conjunction with other physical properties analyses, these strength data help define a complete geotechnical characterization of sediments from the Ursa region. |
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