Oversize Quantification Using Drone-Based Fragmentation Analysis

The demand for blast optimization within the quarrying industry calls for more effective, faster and safer methods of quantification of blast performance. Drones provide the ability to safely and quickly capture high resolution imagery of a muckpile for use in fragmentation photo analysis.


Pattern Expansion Optimization Model Based on Fragmentation Analysis with Drone Technology

The technical paper proposes a practical methodology for pattern expansion studies, taking into consideration terrain parameters, rock quality and explosive strength. A multitude of tools were geared towards an economical continuous improvement procedure, utilizing UAV particle size analysis to optimize blasting, with cost savings being the main objective.


PECCS – Pan-European Competence Certificate for Shot-Firers /Blast Designers By European Federation of Explosive Engineers

Pan-European Competency Certificate for Shot firers / Blast designers by EFEE - one step closer to hamonisation of shot firer skills and competencies in Europe and international companies.


Potential Impact of Blast Layout, Sequence and Detonator Timings on Air Overpressure

The paper seeks to gain a better understanding between the resulting air overpressure levels generated and the blast layout, together with the detonators timings and sequence.


PPV. SD. Really? Still?

Peak Particle Velocity and Scaled Distance are controlling factors for many blasting operations. This paper will review the basis and history of both of these parameters, discuss how this impacts blast procedures, and offer some thoughts on future studies to investigate alternative criteria.


Predicting Vibration Through Linear-Regression Modeling

In this paper two case studies are presented from recent projects that the authors completed linear-regression modeling for prediction of maximum ground vibration and air overpressure. These projects consist of both surface and underground construction projects within feet of structures. Comparison to historical publications are also made.


Present Situation and Prospect of Blasting Safety Supervision

This paper discusses: why set up the safety supervision of blasting engineering; what is the safety supervision of blasting engineering; how to do safety supervision of blasting engineering, to analyze and study the present situation, the formation of a top-down, Chinese blasting engineering safety supervision and effective supervision system.


Protecting a Gas Pipeline from Cast Blast Induced Vibration Damage

The purpose of this paper is to explore the method of developing a site vibration law from signature hole data analysis to protect a gas pipeline.