Authors: Sharrock, GB; Ooi, J; Baasanjav, B

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DOI https://doi.org/10.36487/ACG_repo/2205_14

Cite As:
Sharrock, GB, Ooi, J & Baasanjav, B 2022, 'Geotechnical analysis and ground support selection for the Oyu Tolgoi Crusher Chamber #2', in Y Potvin (ed.), Caving 2022: Fifth International Conference on Block and Sublevel Caving, Australian Centre for Geomechanics, Perth, pp. 227-240, https://doi.org/10.36487/ACG_repo/2205_14

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Abstract:
Oyu Tolgoi (OT), in the South Gobi region of Mongolia, is one of the largest known copper and gold deposits in the world. At peak production, Oyu Tolgoi is expected to produce 500,000 tonnes per annum of copper.  The Panel 2 (PC2) crusher is a key component of the OT underground ore handling system, which has a total capacity of 95 ktpd; the PC2 crusher processes 45 ktpd of this total. The PC2 crusher chamber is a large excavation located at a depth of 1,300 m, with a stand-off distance of 280 m from the Panel 2 footprint. This paper describes the geomechanical analyses and design carried out to evaluate stability and support of the chamber including:

Keywords: large chamber, deep and high stress mining, ground support, numerical modelling

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