What is the PPV value for 0 to 300 feet?

What is the PPV value for 0 to 300 feet?

• A. 1.25 inches
• B. 1.00 inch
• C. 0.75 inch
• D. 1.50 inches

Answer: (A)

Peak Particle Velocity (PPV) is the measure of how violently the ground moves at a point when a blast occurs. It’s the key metric regulators use to judge potential damage to nearby structures and to gauge nuisance from ground vibrations. The limits are set in distance bands so the allowable vibration matches how close the receptor is to the blast. For receptors located from 0 to 300 feet, the standard limit in Tennessee blasting practice is 1.25 inches per second. That means any blasting plan should keep measured PPV at points within that 0–300 ft range at or below 1.25 in/s. Among the given values, this is the one that matches the allowable limit for that near-distance category. Values higher than this would exceed the limit for blasts so close, while lower values would still be within the permitted range.

Peak Particle Velocity (PPV) is the measure of how violently the ground moves at a point when a blast occurs. It’s the key metric regulators use to judge potential damage to nearby structures and to gauge nuisance from ground vibrations. The limits are set in distance bands so the allowable vibration matches how close the receptor is to the blast.

For receptors located from 0 to 300 feet, the standard limit in Tennessee blasting practice is 1.25 inches per second. That means any blasting plan should keep measured PPV at points within that 0–300 ft range at or below 1.25 in/s. Among the given values, this is the one that matches the allowable limit for that near-distance category. Values higher than this would exceed the limit for blasts so close, while lower values would still be within the permitted range.