Abstract
The article describes the monitoring system of blasthole drilling process called HNS (Hole Navigation System), which was used in blasting works performed by Maxam Poland Ltd. Developed by Atlas Copco's, the HNS system – using satellite data – allows for a very accurate mapping of the designed grid of blastholes. The article presents the results of several conducted measurements of ground vibrations triggered by blasting, designed and performed using traditional technology and using the HNS system and shows first observations in this matter.
Highlights
In the world mining industry, modern mines use technologies that allow for remote control, automation and navigation of heavy machines
Machine automation in the mining industry allows for the precise drilling of the blastholes, which results in more uniform fragmentation and for reduction of operating costs [1]
The drill rig has been equipped with the total-site Hole Navigation System based on the Global Navigation Satellite System (GNSS) to ensure all holes are drilled precisely parallel to each other
Summary
In the world mining industry, modern mines use technologies that allow for remote control, automation and navigation of heavy machines. Manual control in this type of machines nearly reached excellence thanks to hydraulic and electrohydraulic joysticks application. Machine automation in the mining industry allows for the precise drilling of the blastholes, which results in more uniform fragmentation and for reduction of operating costs [1]. Drilling of the holes permit optimized blasting patterns while maintaining control of fracture size, fly-rock and ground-borne vibrations, contributing to reduced costs [3]. The results of measurements of ground-borne vibrations induced by blasting have been analyzed within the framework of presented paper. The tests were carried out in selected opencast mine in Poland, in which blasting service is provided by Maxam Poland Ltd
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