基于破碎和加权环境危害综合效应的花岗岩骨料采石场爆破效率

IF 2.8 Q2 MINING & MINERAL PROCESSING
Shaib Abdulazeez Shehu, Kudirat Oziohu Yusuf, H. Zabidi, O. A. Jimoh, M. Hashim
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引用次数: 0

摘要

意图矿山和采石场运营商根据碎片的大小来确定爆破效率,而监管机构则根据环境不适程度来评估。因此,存在利益冲突。本研究将破碎效率与爆破效率区分开来。它提出了一种评估爆破效率的新方法,以打破采石场运营商和监管机构之间的利益冲突。方法。对FYS花岗岩集料场的五次爆破事件进行了研究,得出了设计参数。作为爆炸引起的环境不适的指标,使用地震仪测量振动和空气爆炸。WipFrag桌面和Kuz-Ram模型用于评估由此产生的碎片。爆破效率是作为碎片和环境约束的函数进行评估的。调查结果。粉末因素影响碎片大小分布和爆破的环境危害,但以一种相互冲突的方式。增加的粉末系数增强了良好的破碎性,但会导致进一步的环境不适。第4次爆破的破片效率最高,为46.53%,而第3次爆破的环境控制效率最高,达69.47%。累积起来,第4次爆炸的总体爆破效率最高,达到45.43%。未来的研究有望将这种新方法标准化,并纳入更多的爆破效果。独创性这项工作首次尝试通过将产生的碎片和由此产生的环境危害结合在一个模型中来量化骨料采石场的爆破作业效率。实际意义。本研究中提出的模型可供采石场运营商和监管机构采用,用于可持续采石和采矿,以解决他们之间已确定的利益冲突。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Blasting efficiency in granite aggregate quarry based on the combined effects of fragmentation and weighted environmental hazards
Purpose. Mine and quarry operators determine blasting efficiency by the sizes of fragments, while regulatory agencies evaluate the same from the level of environmental discomfort. Thus, a conflict of interest exists. This research distinguishes fragmentation efficiency from blasting efficiency. It proposes a new approach for evaluating blasting efficiency to break the conflict of interests between the quarry operators and the regulatory agencies. Methods. Five blasting events in the FYS granite aggregate quarry have been studied, and design parameters have been obtained. As an indicator of blast-induced environmental discomfort, vibrations and air blasts are measured using a seismograph. The WipFrag desktop and Kuz-Ram model are used to assess the resulting fragmentations. Blasting efficiency is evaluated as a function of fragmentation and environmental constraints. Findings. The powder factor affects the fragment size distribution and the environmental hazards of blasting but in a conflicting manner. Increased powder factor enhances good fragmentation but results in further environmental discomfort. Blast event 4 has the highest fragmentation efficiency of 46.53%, while 3 has the highest environmental control efficiency of 69.47%. Cumulatively, blast event 4 has the highest overall blasting efficiency of 45.43%. Future research is expected to standardise this novel approach and incorporate more blasting effects. Originality. This work is the first attempt to quantify the efficiency of blasting operations in the aggregate quarry by combining the fragmentation produced and the resulting environmental hazards in a single model. Practical implications. The model proposed in this research can be adopted by quarry operators and regulatory agencies for sustainable quarrying and mining to address identified conflicts of interest between them.
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来源期刊
Mining of Mineral Deposits
Mining of Mineral Deposits MINING & MINERAL PROCESSING-
CiteScore
5.20
自引率
15.80%
发文量
52
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