Short Cantilever Rock Beam Structure and Mechanism of Gob-Side Entry Retaining Roof in Reuse Period

<div>Structure form of short cantilever step rock beam. (a) Roof structure in the stage of gob-side entry retaining; (b) the roof structure in the reuse stage of gob-side entry retaining.</div>

Shock and Vibration

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Figure 4

Figure 4: Short Cantilever Rock Beam Structure and Mechanism of Gob-Side Entry Retaining Roof in Reuse Period 