Which components should be included in a ground movement monitoring plan?

Which components should be included in a ground movement monitoring plan?

• A. Seismic monitoring, visual checks, rock bolt condition, and escalation criteria.
• B. Gas readings, ventilation rate, PPE stockpile, and shift schedules.
• C. Traffic routes, speed limits, road maintenance, and pedestrian separation.
• D. Waste management, water discharge, noise monitoring, and rehabilitation.

Answer: (A)

Ground movement monitoring is about detecting signs that the rock above and around a mine is shifting or cracking, so you can act before instability becomes dangerous. The plan combines instruments, careful observation, and predefined actions to keep people safe and the mine stable. Seismic monitoring captures microseismic events and larger rock movements, providing early warning of instability and helping you understand how the rock mass is responding to mining. Visual checks involve regular inspections of exposed surfaces and supports to spot cracks, displacement, rock spalling, or any signs that the ground is moving or failing. Rock bolt condition is crucial because these supports are the main line of defense against collapse; monitoring bolt integrity, tension, corrosion, and whether bolts are loosening or backing out tells you if the reinforcement is still doing its job. Escalation criteria set concrete thresholds for increasing monitoring intensity, halting activities, or implementing protective actions, ensuring a prompt and consistent response when movement is detected. Other elements like gas readings and ventilation, PPE stocks and shift schedules, traffic and road conditions, or environmental measures address different safety or operational needs and do not directly monitor ground movement.

Ground movement monitoring is about detecting signs that the rock above and around a mine is shifting or cracking, so you can act before instability becomes dangerous. The plan combines instruments, careful observation, and predefined actions to keep people safe and the mine stable.

Seismic monitoring captures microseismic events and larger rock movements, providing early warning of instability and helping you understand how the rock mass is responding to mining. Visual checks involve regular inspections of exposed surfaces and supports to spot cracks, displacement, rock spalling, or any signs that the ground is moving or failing. Rock bolt condition is crucial because these supports are the main line of defense against collapse; monitoring bolt integrity, tension, corrosion, and whether bolts are loosening or backing out tells you if the reinforcement is still doing its job. Escalation criteria set concrete thresholds for increasing monitoring intensity, halting activities, or implementing protective actions, ensuring a prompt and consistent response when movement is detected.

Other elements like gas readings and ventilation, PPE stocks and shift schedules, traffic and road conditions, or environmental measures address different safety or operational needs and do not directly monitor ground movement.