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 5

Characteristics of the roof stress disturbance during cyclic excavation of gob-side roadway: (a) the vertical stress distribution law of the roof along the axial direction of the roadway when the roadway is excavated to 15 m and (b) the vertical stress evolution law of the roof at 15.5 m of roadway mileage during 30 m of roadway excavation.
(a)
(b)