There’s a moment on every quarry face, right after the dust settles, when you can tell whether a blast worked. Big, angular boulders scattered across the muckpile mean trouble ahead — more secondary breaking, slower loading, a crusher that’s going to complain all shift. A tight, well-broken pile means the ...
Improper and uneven use of explosive energy results in uneven fragmentation, Boulders and dust, both of which are difficult to deal with. Boulders need secondary breakage and dust is a wastage. Use of stemming Plugs Stemming is the most critical part of blast geometry; inadequate stemming results in Flyrock, and ...
Flexible Liners What is a Flexible Liner Flexible liners are HDPE (High-Density Polyethylene) tubes that are flexible and can be easily inserted into the hole. When to use? Deck charging results in uneven distribution of explosives and will result in uneven distribution of fragmentation and may produce boulders from the ...
As a user of Explosives, you know bad quality of explosives can affect your productivity and costs. Inaccuracy in delay timing will increase the Vibrations attract complaints, increase boulder generation, and send entire Blast planning haywire. Quality Parameters of Explosives The Main Quality Parameters of Explosives are STRENGTH Others How ...
What is a seismograph? A seismograph is an instrument that measures ground Vibrations irrespective of the source of vibrations. The source could be Rock Blasting, Pile Driving, Traffic or even an Earthquake. Seismographs used by Civil and Mining Engineers measure the Particle Velocity of the medium on which the sensors ...
Very often, the biggest challenge for most excavation Engineers is complaints about noise and vibrations from the neighbourhood; if it involves Rock blasting, the first thing the Neighbours assume is that the blasting is certainly going to damage their properties. Ground vibrations are not caused just by Rock blasting alone ...
