| 钻孔装药爆破岩石块度组成的分析方法 |
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| 作者单位： | ;1.哈萨克斯坦国立科技大学;2.哈萨克斯坦国立大学;3.阿拉木图能源与通讯大学 |
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| 摘 要： | 介绍了钻孔装药台阶爆破时岩石块度组成的分析方法。该方法以破碎区的范围和岩体天然节理含量为根据,根据爆破岩石的物理力学性质及所使用炸药的理化性能计算破碎区的半径。通过爆炸应力波的反射作用,论证了岩体中因爆破膨胀应力波的作用而受破坏的比例。
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| 关 键 词： | 岩体 空腔极限半径 破碎区半径 天然节理标准含量 破碎区范围 整体破碎块度 块度组成 |
ANALYTICAL DETERMINATION OF GRANULOMETRIC COMPOSITION OF THE BLASTED MINING MASS BY BOREHOLE CHARGES OF CRUSHING |
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| Affiliation: | ,K.I.Satpayev Kazakh National Technical University,Al-Farabi Kazakh National University,Almaty University of Energy and Communications |
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| Abstract: | The paper describes an analytical method developed by the authors for determination of the granulometric composition of blasted mining mass during blasting of the benches by the borehole charges.The method is based on taking into account of the sizes of the zones of intensive crushing and content of natural separateness in the rock massif.The radii of the zones of intense crushing are calculated on the given physical-mechanical properties of the blasted rocks and physical-chemical characteristics of the used explosives.Value of the coefficient is substantiated that takes into account the proportion of rock massif destruction due to the reflected wave of the explosion puffing effect. |
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| Keywords: | Rock massif Limiting radius of the cavity Radii of the zones of intensive crushing Conditional content of natural separateness Volumes of intensive destruction Total destruction of the block Granulometric composition |
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