Abstract
The cave propagation behaviour of a jointed rock mass is strongly governed by the unique nature of joints and discontinuities, together with the intact strength of rock bridges that make up the rock fabric. A discrete finite difference (DFD) modelling technique has been developed to allow for the detailed consideration of the rock mass structural fabric at many scales and through many different stress paths that can be used for complex mine-scale analysis. The DFD methodology uses interfaces to explicitly represent large-scale structures and ubiquitous joints embedded within the simulated rock mass matrix to characterise intermediate structures. Through simulated testing of DFD materials, properties such as strength anisotropy and scale effects can be obtained. This paper discusses the successful application of implementing a DFD modelling technique for the back-analysis of caving-induced subsidence behaviour of Lift 1 at the Palabora mine.
| Original language | English |
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| Title of host publication | Seventh International Conference & Exhibition on Mass Mining (MassMin 2016) - Proceedings |
| Publisher | Australasian Institute of Mining and Metallurgy (AusIMM) |
| Number of pages | 12 |
| ISBN (Electronic) | 9781925100440 |
| ISBN (Print) | 9781925100433 |
| Publication status | Published - May 2016 |
| Event | SEVENTH INTERNATIONAL CONFERENCE & EXHIBITION ON MASS MINING - Sydney, Australia Duration: 9 May 2016 → 11 May 2016 http://www.massmin2016.com/ |
Conference
| Conference | SEVENTH INTERNATIONAL CONFERENCE & EXHIBITION ON MASS MINING |
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| Country/Territory | Australia |
| City | Sydney |
| Period | 9/05/16 → 11/05/16 |
| Internet address |