Optimisation of slope design using three-dimensional limit equilibrium: case studies from the Pilbara

Authors: Dwumfour, D; Jele, R; Jolly, Z Download Paper

DOI https://doi.org/10.36487/ACG_repo/2135_03

Cite As:
Dwumfour, D, Jele, R & Jolly, Z 2021, 'Optimisation of slope design using three-dimensional limit equilibrium: case studies from the Pilbara', in PM Dight (ed.), SSIM 2021: Second International Slope Stability in Mining, Australian Centre for Geomechanics, Perth, pp. 95-104, https://doi.org/10.36487/ACG_repo/2135_03



Abstract:
Slope design assessments for rock mass failure modes are typically undertaken utilising two-dimensional limit equilibrium (LE) software packages. What happens in scenarios where the design has adopted the recommended slope configuration and still the inter-ramp and overall slope do not meet the design acceptance criteria? This paper presents two case studies within the Pilbara where a three-dimensional LE approach was implemented to further assess slopes that fail to meet the adopted design acceptance criteria, providing an optimal final slope design for implementation.

Keywords: geotechnical, slope stability analysis

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