Numerical Simulation and Analysis of the Height of Overlying Strata Fracture Belt Based on UDEC

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Abstract:

Measuring the height of overlying strata fracture belt with the “Double-plugging device” after mining the 3 upper coal, obtained the height, inverted the mechanical parameters of overlying strata according to the height, then conducted the numerical simulation with UDEC, and getting the height of overlying strata fracture belt when mining 3 down coal, with the data of this study we could expect the height of overlaying strata crack belt under the similar conditions, We can improve the upper limit of coal mining with the data of this research, and ensure safety in coal mining under the water.

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512-516

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September 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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