Explosives are used in underground mines and quarries to break coal and other rocks. An explosive is a solid or a liquid substance or mixture of substances which change themselves …

This document, Guidance Note for Handling Explosives in Surface Mines and Quarries, covers an important aspect of safety and health in the mining and quarrying industries. We have entered …

In the hard rock deposits in particular, changing from a somewhat haphazard system to a modern one is no trivial undertaking. Ultimate conditions depend very largely on the results of primary …

2024年3月25日 · In this article, we’ll explore the types of explosives used in mining, safety measures to mitigate risks, and the environmental impact of explosive use in mining …

BLASTING IN SURFACE EXCAVATION Any blast optimisation programme calls for a clear understanding of the effects of principal blast parameters and their careful application. The …

Conventional high explosives must be readily initiated by normal detonators or detonating fuse. The sensitizing agent is usually nitroglyc erine or trinitrotoluene (TNT) together with oxidizing …

The usage of emulsion explosives on the surface mine "Zelenikovec", due to increased drilling geometry, allows considerable fuel savings in the drilling process and its duration. In addition, …

Explosives are chemical mixtures or compounds that, when subjected to heat, impact, or shock, are capable of undergoing a rapid decomposition that releases heat and gases, which, in turn, …

2023年1月24日 · Explosives used in mining are not the same as those used in battlefields or military operations. Instead, they are designed to be safe, cost-effective, and highly efficient for …

2021年1月27日 · Partially or fully buried explosive on detonation releases a large amount of kinetic energy a part of which gets dissipated during creation of crater and the rest gets …