Research on the Movement Law of Roof Structure in Large-Inclined Coal Seam Working Face: A Case Study in Liu.Pan.Shui. Mining Area

Figure 1

Stress characteristics of asymmetric inverted arch surrounding rock in stope. (a) Tendency accumulation structure formed by rock migration. (b) Anti-tendency accumulation structure formed by rock migration. (c) Asymmetric distribution mechanical model of abutment pressure in steeply dipping coal seam stope.

(a)

(b)

(c)