Occurrence Mechanism of Roof-Fall Accidents in Large-Section Coal Seam Roadways and Related Support Design for Bayangaole Coal Mine, China

<div>Arrangement of drilling holes on two monitoring sections and related drilling parameter settings. (a) Monitoring section 1 and (b) monitoring section 2.</div>

Advances in Civil Engineering

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Figure 7

Figure 7: Occurrence Mechanism of Roof-Fall Accidents in Large-Section Coal Seam Roadways and Related Support Design for Bayangaole Coal Mine, China 