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Blasting operations are an essential part of underground mining activities, but the seismic waves generated during detonation may adversely affect the stability of underground mining structures such as galleries, chambers, intersections, and support systems. Repeated blasting can lead to cumulative damage, increasing the risk of degradation of both the rock mass and the installed support. This paper presents considerations regarding the assessment of the seismic effects of blasting operations on underground mining...

The present study investigates the impact sensitivity of high explosives used for civilian applications, with the primary objective of assessing key safety parameters in accordance with the requirements of Directive 2014/28/EU and the harmonized European Standard SR EN 13631-4:2005. Using a RENAR-accredited methodology (Procedure PI-84), the sensitivity to mechanical shock was determined through a series of standardized drop-weight tests performed with the Soneta BFH 12A impact testing apparatus. The explosive mat...

Explosives are used in a wide range of industrial, military and civil applications, and their behavior under extreme temperature conditions is a key aspect for safety and reliability. The present study analyzes the influence of extreme temperatures on the stability and reactivity of explosive materials, highlighting the critical factors that can lead to degradation, changes in sensitivity or accidental triggering. In the research, experimental methods and numerical modeling were used to evaluate the thermal behavi...

This study presents a comparative analysis of the performance of three gas measurement devices used to detect toxic gases generated by the detonation of ANFO explosive. The study was conducted following the operational procedure PI-102, which complies with the requirements of the SR EN 13631-16:2005 standard for detecting and measuring toxic gases produced by explosions. The aim was to evaluate the accuracy, reliability, and consistency of the devices in monitoring key toxic gases released during detonation. The e...

The evaluation of computer simulation and modeling methods of pull processes carried out in open pit mines is a broad and complex topic, which involves the analysis and comparison of different techniques and tools used to simulate and model pull processes in quarries and open pit mines. The importance of computer simulation and modeling of recovery processes plays a crucial role in optimizing resource extraction, reducing costs, minimizing environmental impact, and ensuring worker safety. These technologies make i...

Used the specialized software solution regarding to the thermochemical facilities, we can predict detonation (e.g. detonation velocity, pressure, energy, heat end temperature, etc.) and combustion (e.g. specific impulse, force, pressure, etc.) performance of energetic materials. The calculation of detonation parameters is based on the chemical equilibrium steady-state model of detonation. The equilibrium composition of detonation and combustion products is calculated by applying modified White, Johnson, and Dantzi...

DETEX Electronic Detonator made by Kirlioglu consists of an electronic circuit with communication and microprocessor and wire bridge resistance coated with explosive material. DETEX Electronic Detonator, which identity information, delay information, charge, discharge and all functions are controlled digitally, is a system consisting of all electronic circuit elements. The system consists of a communication circuit, a master control circuit with a microprocessor, a controlled charge, a discharge and an ignition ci...

Unlike friable rocks, salt behaves pseudoplastic when blasted, which leads to other premises of the blasting technique compared to those applied for stratified sedimentary or eruptive rocks. Here can also add the salt inhibitory character on the thermodynamic parameters of the explosions, with effects on their efficiencies as well as some particularities of the execution of the blasting works due to the presence of methane gas in the salt mines. The article presents the results of the research carried out in fired...