ABSTRACT
The combination of recent advancements in paste fill technology and some unfortunate incidents with poorly managed hydraulic fill systems has seen the implementation of Cemented Hydraulic Fill systems in Australian mines reduce significantly in recent years. This paper describes a high density cemented hydraulic fill system that has performed very well in recent years at OZ Mineral’s, Prominent Hill Operations, Malu underground Mine. The paper details the design methodology and specific features of the system that were developed to address the underground mining demands. This is followed by a description of how the fill system was implemented and the innovative management systems used on an ongoing basis to maximise production while managing safety risks. Based on data gathered during this period the success and failure of various design considerations are discussed.
