What is the maximum delay interval between adjacent rows of shots using millisecond delay detonators?

The correct answer is that the maximum delay interval between adjacent rows of shots using millisecond delay detonators should be no more than 100 milliseconds. This interval is crucial for ensuring that the blasts do not interfere with each other, which could lead to safety hazards or ineffective rock fragmentation.

Using a 100-millisecond interval allows for a timely sequence of detonations that helps maintain stability in the surrounding material and optimizes the effectiveness of the blast. Intervals longer than this may lead to issues such as unintended ground movement or uneven rock fragmentation, while intervals shorter than this could cause simultaneous detonation of adjacent charges, which negates the purpose of using delayed detonators in the first place. Therefore, adhering to this time standard is essential for achieving the intended results of the blasting operation while maintaining safety and control.