ABSTRACT
Future stages will concentrate on shotcrete support performance evaluation and shotcrete support design guidelines developed on an engineering basis.
2 PRELIMINARY LABORATORY TRIAL
The preliminary phase of the investigation was undertaken in the form of two trials that examined
1 INTRODUCTION
Newcrest Mining Ltd (NML) is Australia’s largest gold producer and a global top 10 gold mining company by production, reserves, and market capitalisation. Newcrest Mining Ltd currently excavates approximately 40-50,000 metres of horizontal development annually and uses 60-70,000 m3 of shotcrete annually across its underground mines and development projects (Figure 1). The cost of shotcrete used annually in NML mines is currently between A$35-40 million and this is forecast to continue for the next three years.
