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Application of microseismic monitoring technology in deep mining

机译:微震监测技术在深矿业中的应用

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Micro-seismic monitoring technology is based on the theories of acoustic emission and seismology, by monitoring the dynamic destabilization process of rock failure including germination, expansion etc. Micro-seismic monitoring technique can evaluate and predict the location of epicentre, energy, high stress zone and fracture degree, which is a kind of effective geophysical information monitoring technology. An overview of the Micro-seismic monitoring technology, which is widely used in deep mining, and control of mine dynamic disaster presented in this paper. Finally, an example shows the successful application of Micro-seismic monitoring technology in HUATING coalmine. Micro-seismic incident is relatively more powerful near the coal working face mainly with a large energy release. It accounts for 76.84% of total mine earthquake whose average energy is 3.70E+05J. Vibration energy is mainly concentrated in between 10E4J to 10E6J. We can conclude from the space distribution, time order and relatively concentrated districts delineated of Microseismic events that relatively concentrated districts of ground pressure correspond to the location of deep mining areas and the concentrated districts are relatively independent.Top and bottom of the surrounding rock is the main danger zone. Establishing the relationship between Micro-seismic events' b value variation and the risk of damage of the surrounding rock can provide a reference for Micro-seismic monitoring based on deep mine disaster forecasting technology.
机译:微地震监测技术基于声发射和地震学的理论,通过监测岩石破坏的动态稳定过程,包括萌发,膨胀等微地震监测技术可以评估和预测震中,能量,高应力区的位置和骨折程度,这是一种有效的地球物理信息监测技术。微地震监测技术概述,广泛应用于深度采矿,并在本文中介绍了矿井动态灾害的控制。最后,一个例子显示了在疏松煤矿中的微地震监测技术的成功应用。微地震事件主要在煤工作面附近比较强大,主要是具有大的能量释放。占总矿地震的76.84%,其平均能源为3.70E + 05J。振动能量主要集中在10E4J至10E6J之间。我们可以从空间分布,时间顺序和相对浓度的地区划定的微震事件,相对浓度的地面压力地区对应于深度采矿区的位置,集中区是相对独立的。周围岩石的底部和底部是主要危险区。建立微地震事件B值变化与周围岩石损坏风险的关系可以为基于深矿灾害预测技术的微地震监测提供参考。

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