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Kluger, Max Oke; Kreiter, Stefan; Moon, Vicki G; Orense, Rolando P; Mills, Phillipa R; Mörz, Tobias (2019): Geotechnical and mineralogical properties of weathered tephra from Tauranga Harbour, New Zealand [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.905620, Supplement to: Kluger, MO et al. (2019): Undrained cyclic shear behaviour of weathered tephra. Géotechnique, 69(6), 489-500, https://doi.org/10.1680/jgeot.17.P.083

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Published: 2019-09-06 • DOI registered: 2019-10-18

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Abstract:
Weathered tephra is prevalent across volcanic islands like the North Island of New Zealand and iscomposed of volcanic airfall materials that have been subjected to various soil processes. Understanding their undrained response to cyclic loading is essential for geotechnical engineering applicationsin these regions because of frequently occurring local earthquakes. The authors describe for the first time the cyclic undrained behaviour of a weathered, clay-rich and highly sensitive tephra through triaxial tests. The weathered tephra experiences brittle failure and exhibits higher friction than sedimentary clays. Cyclic contour diagrams, covering the whole compressional and extensional range of stress conditions, are used to compare the cyclic shear strength of Pahoia tephra with those derived for sedimentary clays. It is found that weathered tephra: (a) is more resistant to small cyclic loading; (b) fails within a smaller range of cyclic shear stresses; and (c) exhibits a cyclic shear strength that peaks at zero average shear stress, in contrast to sedimentary clays where cyclic shear strength peaks at small compressive average stress.
Keyword(s):
clays; Deformation; earthquakes; friction; laboratory tests; residual soils; shear strength
Coverage:
Median Latitude: -37.630141 * Median Longitude: 176.045959 * South-bound Latitude: -37.630450 * West-bound Longitude: 176.045957 * North-bound Latitude: -37.630115 * East-bound Longitude: 176.045987
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
13 datasets

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Datasets listed in this publication series

  1. Kluger, MO; Kreiter, S; Moon, VG et al. (2019): (Fig. 2c-d) Bulk density and bore hole diameter of core Omok-2. https://doi.org/10.1594/PANGAEA.905570
  2. Kluger, MO; Kreiter, S; Moon, VG et al. (2019): (Fig. 2e) Grain size distribution of the Omok-Sampling-Site. https://doi.org/10.1594/PANGAEA.905571
  3. Kluger, MO; Kreiter, S; Moon, VG et al. (2019): (Fig. 3a) Oedometric compressional behaviour of the Omok-Sampling-Site. https://doi.org/10.1594/PANGAEA.905574
  4. Kluger, MO; Kreiter, S; Moon, VG et al. (2019): (Fig. 3b) Hydraulic conductivity - void ratio relationship of the Omok-Sampling-Site. https://doi.org/10.1594/PANGAEA.905577
  5. Kluger, MO; Kreiter, S; Moon, VG et al. (2019): (Fig. 3c) Difference between measured and calculated settlement of the Omok-Sampling-Site. https://doi.org/10.1594/PANGAEA.905578
  6. Kluger, MO; Kreiter, S; Moon, VG et al. (2019): (Fig. 3d) Example of the axial settlement residual, Δsa, and the curve fit of the Omok-Sampling-Site. https://doi.org/10.1594/PANGAEA.905582
  7. Kluger, MO; Kreiter, S; Moon, VG et al. (2019): (Fig. 4a) Consolidation and saturation procedure for triaxial testing using the example of test no. CY-13 of the Omok-Sampling-Site. https://doi.org/10.1594/PANGAEA.905586
  8. Kluger, MO; Kreiter, S; Moon, VG et al. (2019): (Fig. 4b) Axial settlement of the Omok-Sampling-Site. https://doi.org/10.1594/PANGAEA.905587
  9. Kluger, MO; Kreiter, S; Moon, VG et al. (2019): (Fig. 4c) Excess pore pressure development during saturation test of test no. CY-13 of the Omok-Sampling-Site. https://doi.org/10.1594/PANGAEA.905596
  10. Kluger, MO; Kreiter, S; Moon, VG et al. (2019): (Fig. 7) Angle of internal friction–plasticity index relationship for halloysite-rich tephra and sedimentary clays of the Omok-Sampling-Site. https://doi.org/10.1594/PANGAEA.905597
  11. Kluger, MO; Kreiter, S; Moon, VG et al. (2019): (Fig. 10) Relationship between cyclic shear stress ratio and number of loading cycles to failure for all average shear stress ratios of the Omok-Sampling-Site. https://doi.org/10.1594/PANGAEA.905598
  12. Kluger, MO; Kreiter, S; Moon, VG et al. (2019): Table 1. Mineralogical composition of the Omok-Sampling-Site. https://doi.org/10.1594/PANGAEA.905665
  13. Kluger, MO; Kreiter, S; Moon, VG et al. (2019): Table 2. Geotechnical properties of the Omok-Sampling-Site. https://doi.org/10.1594/PANGAEA.905679