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Conference Proceedings

2022 Open Pit Operators' Conference

Conference Proceedings

2022 Open Pit Operators' Conference

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Managing uncertainty in large open pit geotechnical modelling

Uncertainties in large open pit geotechnical modelling has been a major concern for slope stability analysis. The level of confidence in the in-put assumptions, such as structural and rock mass model, dictates the modelling results to some extent. This article is to detail a case study of Kalgoorlie Consolidated Gold Mines (KCGM) regarding a predicted inter-ramp failure on an as-built pit walls by a 3D numerical modelling. Significant concerns were raised across site and multiple preventive plans were considered. After intense data collection work, it was confirmed that the risk of failure had been overestimated. The case study has improved the understanding of geotechnical data in-put and has enhanced the process of creating and updating geotechnical structural models at KCGM.
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  • Published: 2022
  • Pages: 5
  • PDF Size: 0.74 Mb.
  • Unique ID: P-03042-J9B3P6

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