Based on the features of the deep depth seam,high water pressure,thin water isolated layer in floor and others in Zhaogu No.1 Mine,in order to maximally recover the coal resources and to realize a safety and high efficient production,the DC electric method site measurement,the similar simulation experiment,the finite difference numerical calculations,the discrete element numerical method and other means were applied to predict the floor failure depth in No.11011 coal mining face in No.Two1 seam of Zhaogu No...
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