Study of Gob-Side Entry Retaining Technology with Roof Cutting under Upper Roadway Condition

<div>Classification of roof cutting pressure releasing gob-side entry retaining. (a) Entry retaining with near-flat coal seam. (b) Lower entry retaining. (c) Upper entry retaining.</div>

Shock and Vibration

fig1

Figure 1

Figure 1: Study of Gob-Side Entry Retaining Technology with Roof Cutting under Upper Roadway Condition 