Research on Mechanism of Rock Burst in Key Working Faces under Thick Magmatite in Deep Mine

Figure 6

The distribution of micro-shock bump and the stress of the advance coal body in the working face when thick magmatite is flexed and enters into the loading stage in the first period. (a) Profile projection of the “fixed” working face of the micro-shock bump; (b) stress state of belt tunnel and partial middle tunnel; (c) stress state of track tunnel and partial middle tunnel.

(a)

(b)

(c)