Advances in Drilling & Blasting Control at Pierina Mine
The success of the drilling and blasting team at Barrick’s open pit Pierina Mine in Peru is the result of an excellent working relationship between mine operations and the geotechnical engineering group. A detailed design criteria manual is used to match the blast plan to the site’s varying rock types and slope designs. The geotechnical group has developed a comprehensive pre- and post-blast checklist that is critical to the drilling and blasting process as it pertains to wall stability. Wall control blasts are evaluated with quality assurance field checks, vibration monitoring and frequency control, video assisted performance quantification and post excavation face profiling. These detailed observations are compiled and summarized with one page blast performance evaluation that is considered to be “Best Practice”. The information and detail provided by each performance summary allows accurate blast analysis and effective design refinement.