QUANTIFICATION OF POTENTIAL DAMAGE TO PT XYZ BLOCK CAVING MINE PRODUCTION LEVEL OPENINGS USING MICRO SEISMIC DATA

• Main Author: Franki Hamonangan S, Endrico
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/74908
• Institution: Institut Teknologi Bandung

The block caving underground mining method has an impact on the stability of the rock mass. Along with the mining progress, block caving mining activities will be increasingly located at deeper locations below the surface. This condition becomes a problem in terms of rock mass stability, one of which is the potential for rockburst. Rockburst is a condition of instability in the rock mass so that a handling strategy is needed to handle this condition. Determining the reinforcement of the opening hole is one form of handling of rockburst conditions. To determine the effect of the type of reinforcement on the potential for rockburst damage, the Excavation Vulnerability Potential (EVP) and Peak Particle Velocity (PPV) parameters are used to produce a damage scale value (RDS) for each type of reinforcement. The potential for rockburst in each type of reinforcement can be determined based on the principle of energy balance using the Burst Potential Index (BPI) parameter. From the results of the study, it was found that the damage scale for type 1 is on the R2-R5 damage scale with Burst Potential Index (BPI) 39.9%, type 2 is on the R1- R2 damage scale with Burst Potential Index (BPI) 38.1%, type 3 is on the R1-R2 damage scale with Burst Potential Index (BPI) 36.8%, type 4 is on the R1-R2 damage scale with Burst Potential Index (BPI) 34.4%, type 5 is on the R1 damage scale with Burst Potential Index (BPI) 27.6%.