1989

Offshore slope failures and geotechnical assessment near Cape Kidnappers, North Island, New Zealand (Article)

Barnes P.M. , Barker P.R. , Read S.A.L. , Smits A.P.
  • a [Affiliation not available]
  • b [Affiliation not available]
  • c [Affiliation not available]
  • d [Affiliation not available]

Abstract

Large scale mass movements of marine sediments are common on slopes of 1deg-5deg along the seismically active eastern margin of New Zealand. The Kidnappers Slide is a 720 km2 complex of sheet slides and rotational slumps on the continental slope off Cape Kidnappers, North Island. Detailed high-resolution seismic profiles have revealed the extent and subsurface structure of the complex, and laboratory tests on 29 piston cores from slumped and undisturbed slopes are in progress. Geomechanical tests include determination of classification, consolidation, static and dynamic triaxial strength, and direct shear properties. The results are being synthesised by the normalized soil parameter (NSP) approach, and when complete, they will be used to establish the mechanisms of failure, and quantify slope stability. This information may help reduce the risk of damage to potential offshore engineering structures. (A)

Author Keywords

[No Keywords available]

Index Keywords

Slopes New Zealand Failure analysis Geotechnical Aspects
Link
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85040959725&partnerID=40&md5=16b2760ac63bebc992bf8f3c4c8b7d7f