Investigating potential long-term geotechnical risks with slow movement analysis

Authors: Peryoga, T; Setiadi, B; Ursulic, A; Ziusudras, S; Earle, J

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DOI https://doi.org/10.36487/ACG_repo/2335_55

Cite As:
Peryoga, T, Setiadi, B, Ursulic, A, Ziusudras, S & Earle, J 2023, 'Investigating potential long-term geotechnical risks with slow movement analysis ', in PM Dight (ed.), SSIM 2023: Third International Slope Stability in Mining Conference, Australian Centre for Geomechanics, Perth, pp. 793-802, https://doi.org/10.36487/ACG_repo/2335_55

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Abstract:
Slopes with very low movement rates are unlikely to be visible under a standard normal slope radar processing approach, as the long-term data will likely indicate no active movement is occurring along the wall being monitored. Depending on the structural geology and other geotechnical conditions behind the wall, slow progressive movement could potentially lead to an instability event in the future. This paper presents an overview of a slow movement analysis using IBIS slope radar monitoring data and some examples of the analysis completed at one Rio Tinto Iron Ore site in the Pilbara region of Western Australia.

Keywords: slope radar, slow movement analysis, subsampling analysis

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