Modeling Uncertainties in Mining Pillar Stability Analysis |
| |
Authors: | Maxime Cauvin Thierry Verdel Romuald Salmon |
| |
Institution: | LAEGO—Ecole des Mines de Nancy, Parc de Saurupt, CS 14234, 54042 Nancy Cedex, France.;INERIS, Parc Alata, BP 2, 60550 Verneuil-en-Halatte, France. |
| |
Abstract: | Many countries are now facing problems related to their past mining activities. One of the greatest problems concerns the potential surface instability. In areas where a room-and-pillar extraction method was used, deterministic methodologies are generally used to assess the hazard of surface collapses. However, those methodologies suffer from not being able to take into account all the uncertainties inherent in any hazard analysis. Through the practical example of the assessment of a single pillar stability in a very simple mining layout, this article introduces a logical framework that can be used to incorporate the different kinds of uncertainties related to data and models, as well as to specific expert's choices in the hazard or risk analysis process. Practical recommendations and efficient tools are also provided to help engineers and experts in their daily work. |
| |
Keywords: | Hazard and risk analysis mining pillar stability Monte Carlo simulations uncertainties |
|
|