Practical Stope Reconciliation in Large-scale Operations Part 2, Olympic Dam, South Australia

Yves Potvin, Don Grant, Glenn Mungur, Johan Wesseloo, Youyi Kim

Research output: Chapter in Book/Conference paperConference paper

Abstract

At the previous MassMin conference held in Sudbury in 2012, the authors proposed a new framework going beyond dilution and equivalent linear overbreak sloughing (ELOS) for stope reconciliation in relation to the planned stope design. More specifically, the new process investigates performance outcomes including rock overbreak OB and fill overbreak FOB, rock
underbreak (UB) as well as geomechanical and operational aspects such as blasting, fragmentation and other production data. Based on the findings of the original 2012 study, a comprehensive data gathering program has
been undertaken involving design and reconciliation data from 43 stopes mined between September 2012 and October 2014 at BHP Billiton’s Olympic Dam (OD) operation. The new database structure was based on four types of data:
1. stope definition and performance data
2. stope geometry
3. geotechnical parameters
4. operational parameters.
The new database allows a more in-depth investigation of stope performance. It is now possible to quantify and analyse UB and OB performance from each wall individually as well as the crown. In this paper, the infuence of several parameters on recent stope performance at OD is analysed. The underlying reasons for stope wall performance outcomes are discussed in this paper.
Original languageEnglish
Title of host publicationSeventh International Conference & Exhibition on Mass Mining  (MassMin 2016)
EditorsChris Carr, Gideon Chitomobo
PublisherAustralasian Institute of Mining and Metallurgy
Pages501-509
Number of pages9
Publication statusPublished - 2016
Event7th International Conference & Exhibition on Mass Mining (MassMin 2016), 9-11 May 2016, Sydney, New South Wales, Australia - Sydney, Australia
Duration: 9 May 201611 May 2016

Conference

Conference7th International Conference & Exhibition on Mass Mining (MassMin 2016), 9-11 May 2016, Sydney, New South Wales, Australia
CountryAustralia
CitySydney
Period9/05/1611/05/16

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