Predicting Overburden-Induced Failure Height of Large Mining Face in Shallow Coal Seam Based on Half-Plane Theory

<div>Contours of principal stress variation distribution of overlying strata. (a) Contours of maximum principal stress. (b) Contours of minimum principal stress. (The abscissa is the dip direction of the working face, the ordinate is the height, and −60 m is the position of the working face).</div>

Shock and Vibration

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Figure 7

Figure 7: Predicting Overburden-Induced Failure Height of Large Mining Face in Shallow Coal Seam Based on Half-Plane Theory 