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首页> 外文会议>International mineral processing congress;IMPC 2010 >IMPORTANCE OF STRAIN TO FRAGMENT STRENGTH IN BLASTING INDUCED PRE-CONDITIONING
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IMPORTANCE OF STRAIN TO FRAGMENT STRENGTH IN BLASTING INDUCED PRE-CONDITIONING

机译：爆破诱导的预应变中应变对碎片强度的重要性

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When a rock is blasted, cracks propagate through the rock causing the rock to fracture. This paperfocuses on applying the results from a series of small scale blasting tests were designed to showthe effect that varying blast variables such as explosive type and explosive energy have on theresulting strength of the post blast fragments. It was shown that the velocity of detonation of theexplosive product affects the reduction of fragment strength. This has important implications forthe downstream comminution process. The observations from these tests are then explained withreference to the principles of fracture mechanics. A simple but effective prediction of blast inducedpreconditioning is shown.
机译：爆炸岩石时，裂纹会通过岩石传播，从而导致岩石破裂。本文着重于应用一系列小规模爆破试验的结果，旨在显示各种爆炸变量（如爆炸类型和爆炸能量）对爆炸后碎片强度的影响。结果表明，爆炸产物的爆炸速度会影响碎片强度的降低。这对下游粉碎过程具有重要意义。然后参考断裂力学原理解释这些测试的观察结果。显示了一个简单而有效的爆炸诱导预处理的预测。

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