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Abstract

Summary

Longwall mining is considered as the most sophisticated form of coal mining and has very recovery. It is seen that in this form of mining the stress level in the roof strata plays a very important role in smooth running of the mines. The presence of stable roof strata over the coal seams sometimes creates problem in caving and the hanging load behind the face induces enormous amount on the powered supports. After reaching a critical limit the stress in the hanging strata is released in form of rock burst resulting in the total failure of the powered supports. Also the giant wind blowouts created results in fatalities in the mine. This paper attempts to describe the theory of using Fractal Dimension from Correlation Integral for locating the clustering of microseismic events in the roof strata that can be used for stress monitoring. It is seen that Fractal Dimension has been very helpful in locating stresses zones.

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/content/papers/10.3997/2214-4609.201701417
2017-06-12
2024-04-25

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References

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Application of Correlation Integral and Fractal Dimension in Longwall Mine Safety
Conference Proceedings 2017, 1 (2017); https://doi.org/10.3997/2214-4609.201701417
/content/papers/10.3997/2214-4609.201701417
/content/papers/10.3997/2214-4609.201701417
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