Research Article
Efficient Excavation and Support Cooperation Technology for Surrounding Rock of Deep Buried Long-Distance and Large Section Gob-Side Roadway: A Case Study
Figure 6
Characteristics of solid coal rib stress disturbance during cyclic excavation of gob-side roadway: (a) the vertical stress distribution law of the solid coal rib along the axial direction of the roadway when the roadway is excavated to 15 m and (b) the vertical stress evolution law of solid coal rib at 15.5 m of roadway mileage during 30 m of roadway excavation.
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(b) |