What are cross ties and what is their value?

• A. Short lengths of cable for reinforcement
• B. Detonating cord links for multiple paths
• C. Safety barriers against ground movement
• D. Markers for blast locations

Answer: (B)

Cross ties are specifically designed as detonating cord links that are used to create multiple paths in blasting operations. Their primary value lies in their ability to synchronize and distribute detonation signals throughout a blasting area, which can enhance the efficiency and effectiveness of a blast. This allows for controlled and simultaneous detonation of various charges, ensuring that the energy is directed in a manner that maximizes the desired outcome while minimizing risks associated with premature or uncoordinated detonations.

This function is critical in mining and construction operations where timing and precision are essential for safety and operational effectiveness. By using cross ties, blasters can achieve a more uniform and predictable blast result, which is crucial for maintaining the integrity of surrounding structures and minimizing ground vibrations that could lead to excessive damage or safety hazards.