The DAC and Model Confidence in Iron Ore Deposits

DOI

10.2991/978-94-6463-900-1_55How to use a DOI?

Keywords

DAC; Model confidence; Slope Failure

Abstract

This paper presents a pragmatic approach to define the model confidence of the geological models, as implemented in Iron Ore at BHP, which is based on defining the minimum modelling requirements for the geological models to prove suitable for slope stability.

The design acceptance criteria (DAC) defined and implemented for slope design of open pits in Iron Ore utilizes two entries in a table schema, which permits to account for categorical definitions of both the model confidence level and the consequence of slope failure. This paper describes the link between the DAC and geological model confidence is currently implemented for routine usage during study phases, at pre-feasibility and feasibility level.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Download article (PDF)

TY  - CONF
AU  - Arturo Maldonado
PY  - 2025
DA  - 2025/12/07
TI  - The DAC and Model Confidence in Iron Ore Deposits
BT  - Proceedings of the Rocscience International Conference 2025 (RIC 2025)
PB  - Atlantis Press
SP  - 549
EP  - 556
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-900-1_55
DO  - 10.2991/978-94-6463-900-1_55
ID  - Maldonado2025
ER  -