Understanding Flyrock control: Initiation Technique control
INTRODUCTION Blast-induced fly rock generation occurs when rock fragments are thrown beyond the blast area, posing safety risks [1-3]. Causes include inadequate blast design, excessive explosive charge, or poor stemming. Control measures involve proper blast design, use of suitable explosives, adequate stemming, and implementing safety zones to minimize fly rock hazards. Preventing flyrock in blasting involves careful parameter design and analysis, including WipFrag analysis. Here are key steps: 1. Blast Design : Ensure a well-designed blast pattern, considering rock properties and site conditions. Optimize burden (distance between blastholes) and spacing (distance between rows of blastholes) based on rock type and desired fragmentation. 2. Explosive Selection: Choose explosives that match the rock type and desired fragmentation. Avoid excessive explosive charges that could lead to uncontrollable energy release. 3. Blasthole Design : Use proper hole diameter and depth based on geologic...