n Journal of the South African Institution of Civil Engineering = Joernaal van die Suid-Afrikaanse Instituut van Siviele Ingenieurswese - Characterization of shear strength parameters and deformation properties of a boulder scree material for use in reliability predictions of slope safety : technical paper

Volume 40, Issue 4
  • ISSN : 1021-2019



A case study is presented in which the stability of a boulder scree slope was assessed. A Parallel grading technique was used in conjunction with conventional triaxial testing to establish the shear strength parameters of a slope that contained boulders up to 1 000mm in size. Shear values obtained were correlated with those back-calculated from bearing capacity predictions based on the results of plate load tests and on formulations used in rock slope engineering. These shear strength parameters were used in a deterministic and probabilistic assessment of slope safety.

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