Journal
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
Volume 29, Issue 2, Pages 217-228Publisher
ELSEVIER
DOI: 10.1016/j.ijmst.2018.06.011
Keywords
Open pit; Overburden; Soil testing; Limestone quarry; Muck; On-site testing
Categories
Funding
- Politecnico of Turin, DIATI
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The management of overburden is an important task in open pit exploitations. Site topography and morphology as well as geological and geotechnical properties of natural and remoulded materials are the most important factors affecting the disposal phase. Economic and environmental requirements must be followed in order to achieve the best reclamation results, keeping into account site constraints such as slope stability, hauling and dumping issues, and interactions with groundwater. This paper deals with the above mentioned issues, illustrating a rational approach applied on the case of a large limestone quarry where the thickness of the overburden is relevant and the spoil material has to be dumped in a flooded pit. The proposed multidisciplinary approach led to the selection of most suitable methods for excavation, transportation and disposal. The selection was based on a detailed laboratory and site characterisation that defined favorable and adverse factors to be considered during the preliminary study of a large quarrying project. (C) 2018 Published by Elsevier B.V. on behalf of China University of Mining & Technology.
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