Innovations in Borehole Design for Mass Blasting

Abstract

This article comprehensively explores the technology of dispersed borehole charges, its advantages, modern implementation methods, innovations that improve the effectiveness of blasting operations, and provides practical recommendations for using this technology. Previously, wooden coils were used to create air gaps, but now this outdated technology has been replaced by modern P-1 devices. These polyethylene bags are filled with chemical reagents that react to release gas, which expands the bag and creates an air gap. P-1 devices have several advantages over wooden coils: Ease of use: P-1 devices do not require special preparation before use, which saves time and resources. Controlled expansion: P-1 devices expand gradually, ensuring a more even distribution of the air gap and better control over the blasting process. Safety: P-1 devices do not contain explosives and are safe to use. To improve blasting efficiency, AdvancedBlasting Technology inc proposes using Rocklock plastic spheres when tamping boreholes. These spheres increase the retention time of the tamping in the borehole, which improves rock fragmentation and reduces the number of oversized fragments.

Keywords

• tamping
• charge dispersion
• explosive
• mass blast
• initiation
• boreholes
• rocklock
• p-1
• safety
• efficiency