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首页> 外文会议>International Symposim on Mine Planning and Equipment Selection >Study on the Propagation of Blast-Induced Ground Vibration and Its Control Measure in Open Pit Mine
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Study on the Propagation of Blast-Induced Ground Vibration and Its Control Measure in Open Pit Mine

机译：爆破诱导地面振动传播及其控制措施在露天矿井中的繁殖研究

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摘要

In modern mining industry, the blasting technique is one of the most adopted techniques for rock excavation and fragmentation due to its economical and efficient aspects. However, compared with other methods, the use of explosives in blasting is limited by law as it may have a severe impact on the surrounding environment such as vibration, noise and dust. Especially, a ground vibration induced by blasting has to be paid much attention in the mining operation as it may give an obvious impact on the surrounding facilities and buildings and In many established safe level blasting criteria, the ground vibration level is characterized by using three parameters; duration, amplitude (peak particle velocity :PPV) and frequency. Current studies on the blast-induced ground vibration focus on two parameters amplitude and frequency that suggested by USBM when the concerned subject is structure, i.e.. Hence, the control of PPV and dominant frequency are very important in order to design an appropriate blasting standard and minimize its environmental impacts.This paper discusses the propagation behavior of blast-induced ground vibration in the open pit mine and study by means of field experiments and numerical simulation. In addition, the measures for reduction of blast-induced ground vibration are also discussed by means of numerical simulation in this study.
机译：在现代采矿业，爆破技术是由于其经济高效的方面，爆破技术是岩石挖掘和碎片的最具技术之一。然而，与其他方法相比，爆炸中的爆炸物的使用受到限制，因为它可能对周围环境产生严重影响，例如振动，噪音和灰尘。特别是，由于爆破引起的地面振动必须在采矿操作中得到很多关注，因为它可能对周围的设施和建筑物产生明显的影响，并且在许多建立的安全水平爆破标准中，地面振动水平的特征在于使用三个参数;持续时间，幅度（峰值粒子速度：PPV）和频率。当前关于爆炸地面振动的研究重点关注USBM当有关对象是结构时建议的两个参数幅度和频率，即。因此，PPV和主频率的控制是非常重要的，以设计适当的爆破标准和最大限度地减少其环境影响。本文探讨了露天矿井爆炸地面振动的传播行为，借助于现场实验和数值模拟研究。此外，还通过本研究中的数值模拟讨论了减少爆炸诱导的地面振动的措施。

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