Reducing Noise and Vibration in Rock Drilling Operations

Rock drilling generates significant noise and vibration that can harm workers, damage equipment, and affect surrounding structures. Implementing effective noise and vibration reduction measures is both a safety requirement and a productivity improvement.

Sources of Noise and Vibration

The main sources are: percussion mechanism impact, drill string resonance, bit-rock interaction, and hydraulic system noise. Each source requires different mitigation strategies.

Anti-Vibration Mounts

Anti-vibration mounts between the rock drill and the feed beam significantly reduce vibration transmission to the drill rig structure. These mounts must be maintained in good condition to remain effective.

Damping Systems

Modern rock drills incorporate hydraulic damping systems that absorb reflected energy from the rock face. These systems reduce vibration and protect the drill from shock loads.

Operator Protection

Operators of handheld rock drills are particularly exposed to hand-arm vibration. Use anti-vibration handles, limit daily exposure time, and rotate workers to reduce individual exposure levels.

Noise Enclosures

For stationary drilling operations, noise enclosures around the drill rig can significantly reduce noise levels in the surrounding area. This is particularly important for operations near residential areas.