Failure Characteristics and Confined Permeability of an Inclined Coal Seam Floor in Fluid-Solid Coupling

Figure 6

Pore water pressure and seepage vector distribution of workface floor along the inclined direction of the coal seam with the advancement of the workface (no water inrush). (a) Original pore pressure. (b) Advanced 20 m of workface. (c) Advanced 40 m of workface. (d) Advanced 60 m of workface. (e) Advanced 80 m of workface. (f) Advanced 100 m of workface.

(a)

(b)

(c)

(d)

(e)

(f)