Substantiation of the specific energy intensity of drilling as a criterion characterizing the explosive destruction of rocks on the example of the Koktaszhal

IF 0.8 Q4 METALLURGY & METALLURGICAL ENGINEERING
S. Ozhigin, I. K. Chunuev, R. Musin, S. Tyan
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引用次数: 0

Abstract

Drilling and blasting operations are one of the most important components of the mining industry. Currently, further improvement and optimization of technological processes at mining enterprises are possible mainly due to the determination and constant monitoring of the mining and technological properties of the rock mass – their drillability, explosivity and exaviability. A prospective assessment of the explosivity of rocks in the massif, which is the basis for designing and calculating the parameters of the DBO, is currently possible only using the energy parameters of technological work. The article provides information on methods for studying the strength and elastic characteristics of rocks in natural occurrence. The results of the study of the relationship between the specific energy intensity of drilling and explosive destruction of rocks are presented. The correlation between the specific energy intensity of drilling and the propagation velocity of elastic longitudinal waves is also considered. A comparative analysis is carried out between the traditional calculation of the explosive index using the results of laboratory studies on the physical and mechanical properties of the rocks of the Koktaszhal deposit and the calculation of the explosive destruction index taking into account the energy parameters of drilling. The validity of the use of the specific energy intensity of drilling as a criterion characterizing the explosive destruction of rocks in the design of drilling and blasting operations is shown.
以Koktaszhal为例,证明钻探的比能量强度是表征岩石爆炸破坏的标准
钻探和爆破作业是采矿业最重要的组成部分之一。目前,采矿企业的技术流程有可能得到进一步改进和优化,这主要是因为对岩体的采矿和技术特性——其可钻性、爆炸性和可检验性——进行了确定和持续监测。目前,只有使用技术工作的能量参数,才能对岩体中岩石的爆炸性进行前瞻性评估,这是设计和计算DBO参数的基础。本文提供了研究天然产状岩石强度和弹性特性的方法。介绍了岩石爆炸破坏与钻孔比能强度关系的研究结果。还考虑了钻孔的比能量强度与弹性纵波传播速度之间的相关性。对利用Koktaszhal矿床岩石物理力学性质实验室研究结果计算爆炸指数的传统方法与考虑钻井能量参数的爆炸破坏指数计算方法进行了比较分析。在钻孔和爆破作业的设计中,使用钻孔的比能量强度作为表征岩石爆炸破坏的标准是有效的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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