Research on the Movement Law of Roof Structure in Large-Inclined Coal Seam Working Face: A Case Study in Liu.Pan.Shui. Mining Area

<div>Force analysis of key block <i>B</i> of overlying strata in high-inclined coal seam stope. (a) The key block <i>B</i> is unstable around point <i>O</i>, forming an anti-trend to accumulate structure. (b) The key block <i>B</i> is unstable around <i>O</i>′ point, forming a tendency to accumulate structure.</div>

Shock and Vibration

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Figure 2: Research on the Movement Law of Roof Structure in Large-Inclined Coal Seam Working Face: A Case Study in Liu.Pan.Shui. Mining Area 