Where to Make the Transition from Open-pit to Underground?: Using Integer Programming
MetadataShow full item record
The transition from open pit (OP) to underground (UG) is one of the challenging mining engineering issues. The mines which have the potential to make transition from OP mining to UG mining will eventually come to a point introduced as a ‘Transition Point’ where it needs to determine whether to extend the pit or switch to UG mining. This research proposes a new integer programming (IP) formulation to obtain the optimal transition point from OP to UG mining. The proposed model has been implemented on a three-dimensional (3-D) gold deposit and a two-dimensional (2-D) case study has been used to demonstrate the validity of the model. Due to the large number of variables, strategies have been proposed to shorten the solution time. The proposed model has successfully determined the optimal transition point and generated significantly better undiscounted profit than that of the traditional approach.
Published by Southern African Institute of Mining and Metallurgy (SAIMM)
This open access article is distributed under the Creative Commons license https://creativecommons.org/licenses/by/4.0/deed.en
Showing items related by title, author, creator and subject.
Developing completion criteria for rehabilitation areas on arid and semi-arid mine sites in Western AustraliaBrearley, Darren (2003)Continued expansion of the gold and nickel mining industry in Western Australia during recent years has led to disturbance of larger areas and the generation of increasing volumes of waste rock. Mine operators are obligated ...
Near-field blast vibration monitoring and analysis for prediction of blast damage in sublevel open stopingFleetwood, Kelly Gene (2010)The work presented in this thesis investigates near-field blast vibration monitoring, analysis, interpretation and blast damage prediction in sublevel open stoping geometries. As part of the investigation, seven stopes ...
Besa, Bunda (2010)The decline is a major excavation in metalliferous mining since it provides the main means of access to the underground and serves as a haulage route for underground trucks. However, conventional mining of the decline to ...