Study on Reasonable Layout of Upper Protective Layer for Prevention Rock Burst under Coal Seam Group with Close Quarters Conditions

<div>The surrounding rock failure of advanced segment about 3203 tailgate on-site. (a) Typical failure of roof, (b) typical failure of solid-coal rib; (c) typical failure of floor I, (d) typical failure of floor (II).</div>

Shock and Vibration

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Figure 2

Figure 2: Study on Reasonable Layout of Upper Protective Layer for Prevention Rock Burst under Coal Seam Group with Close Quarters Conditions 