— In order to determine the loads on mine‐clearing devices generated by detonations of anti‐tank mines, knowledge about the incident impulse and pressure generated in the air are needed. Dependent factors include the mine's depth of burial and the properties of the soil.

In this article, we discuss how to safely conduct blasting operations in hard rock or soil. Safety Precautions before Blasting. The blasting operations shall be carried out under the supervision of a responsible authorized blasting engineer.

 — A blast that is well designed and executed generates better rock fragmentation, making loading, hauling, crushing and milling more energy-efficient, explains BME MD Ralf Hennecke.This results in ...

 — The verification of the blasting parameters of Ammonium Nitrate Fuel Oil (ANFO) with the addition of microstructured charcoal (MC) produced by destructive wood distillation was performed.

 — This paper evaluates the performance of bulk emulsion explosives HEF100 through a velocity of detonation (VOD) measurement and fragmentation size distribution …

 — The exploding-bridgewire detonator is a type of detonator used to initiate the detonation reaction in explosive materials, similar to a blasting cap because it is fired using an electric current. EBWs use a different physical mechanism than blasting caps, using more electricity delivered much more rapidly. They explode with more precise timing …

 — Detonation velocity, also known as velocity of detonation (VoD) or explosive velocity, is the velocity at which the shock wave front travels through a detonated explosive. Contents. ... ↑ Resi Gerritsen,Ruud Haak, K9 Explosive and Mine Detection: A Manual for Training and Operations;

 — Blasting is accompanied by a number of side effects that have a negative impact on the environment, such as ground vibration, flyrock, AOp, and backbreaks [33, 42].These effects are more severe if they are carried out in close proximity to residential buildings, factories, offices or if they are improperly designed [].Proper designing of a …

We studied seismic-wave generation from five small (60-122 kg) fully contained explosions detonated in Barre Granite as a part of the New England Damage Experiment (NEDE).

 — It is one of the most crucial factors influencing the energy utilization of explosive detonation and thus controlling rock fragmentation in rock blasting of civil and mining engineering (Hosseini ...

 — The condensed and gas phase heats of formation of some pure and mixed explosives are shown in Table 1.Detonation velocities estimated by this method for underoxidized and overoxidized explosives are given in Table 2 and compared with values calculated from the method of Kamlet and coworkers as well as measured values. As …

 — TN 10-20-01/2001 provides guidance on the calculation of estimation of explosion danger areas. The size of the disposal site will therefore provide the explosive limit. No open detonation shall be permitted with a Net Explosive Content (NEC) above the limit where fragments may travel further than the perimeter of the disposal site; and

 — The energies and the fragmentation efficiencies, η F, with respect to useful work and heat of explosion, are also listed in Table 6.5. The efficiencies in Eibenstein are within the range of efficiencies estimated for El Alto. The range of efficiencies is 1.9–6.0% of the heat of explosion and 3.1–8.8% of the useful work.

 — Drilling, without question, is certainly one of the more common occurrences in mining today. In fact, as every mining company knows, without drilling, there wouldn't be mining. The days of picks and shovels are long gone. Drills and drill cores are the tools of discovery and regardless of whether it's for a future open-pit mine, or a deep ...

 — The stress wave radiated from the underground blasts is usually assumed to propagate in a spherical or cylindrical form, affected by the charge loading density, …

Therefore, to optimize the technique for emulsion explosives of "Ukrainit-PP" type, we analyzed interrelations of detonation velocity, diameter of the blast-hole (borehole) and density of load.

 — The effects of millisecond time, charge length and detonation velocity on the blasting vibration are discussed by analyzing the characteristics of vibration wave …

Detonation in an explosive column (contained, for example, in a blast hole) involves the passage through the column of a chemical reaction front. The front is driven through the …

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 — Velocity of detonation (VOD) is used as a basic parameter in the determination of the detonation pressure, which in turn represents the energy of the …

Maximising coal recovery in challenging geologies represents a significant efficiency opportunity for most coal mining operations to increase the value of their resource. As the easy coal is mined out, mine operators need to …

 — The accuracy of the detonation delays has been further fine-tuned, reaching a 0,02% firing accuracy for consistent and quality blasting that results in better rock fragmentation and consistency. He highlighted the positive impact this has on the efficiency of key mine measurables like loading rates and crusher throughput.

 — When detonation occurs, serious internal damage may happen, including melted spark plug electrodes, cracked piston rings, melted or cracked pistons, hammered rod bearings, and blown head gaskets ...

Even though the use of explosives has unwanted side effects in the form of vibration, explosives provide an inexpensive source of energy for rock excavation in mining and civil engineering projects. Vibrations from blasting are transient, but the disturbance may result in permanent damage to property/structure.

ADVANCED TECHNOLOGIES AND MATERIALS VOL. 43, NO. 2 (2018) DOI: 10.24867/ATM-2018-1-006 ADVANCED TECHNOLOGIES & MATERIALS * Corresponding author's.e-mail: [email protected] Determination of Velocity of Detonation Using Dautrich Method Darko Šunjića*, Stipo Buljanb aUniversity of Mostar, Faculty of …

The explosion impact is used to calculate entity knockback and damage, and it depends on exposure. Impact is stronger the closer and less obstructed the entity is to the explosion. To calculate the exposure of an …

 — Ammonium Nitrate Fuel Oil (ANFO) is preferred mining explosives in worldwide. It is composed of ammonium nitrate (94-96%) and liquid hydrocarbon as fuel oil (4-6%), which is detonated through an ...

Mistral HOUNDTM, is an advanced drone based mine detection and detonation solution for security agencies and armed forces. The Mistral Hound is a combination of highly rugged drones for mapping, detection and detonation of landmines in a defined geographical area. The solution consists of a Mapping Drone and a Detection-cum-Detonation Drone.

conducted to understand the influence of velocity of detonation of emulsion explosives on fragmentation of blasted muckpile over a range of densities. The den sity of explosives …

 — The key to a safe and successful blasting operation is compliance with regulations, guidelines, and best practices. With SafetyCulture (formerly iAuditor), you can easily create a checklist that includes the key elements of blasting safety, including abrasive blasting operations. Additionally, you can do the following: