Formation Mechanism of “Large-Area Sweating” Water Seepage from Deep Mine Sandstone Pores

Figure 4

Pore types in the deep mine sandstone. (a) Jurassic sandstone, 1047.37 m, Z23 (-). (b) Permian sandstone, 1068.83 m, X9 (-). (c) Permian sandstone, S12 (-), 920.28 m. (d) Permian sandstone, 1007.22 m, S18 (-). (e) Permian sandstone, 920.98 m, S12 (-). (f) Permian sandstone, 1012.84 m, A1 (-). (g) Permian sandstone, 911.46 m, S10 (-). (h) Permian sandstone 1068.83 m, X9, SEM. (i) Jurassic sandstone, 1023.26 m, Z9 (-). (j) Permian sandstone, 1153.04 m, T13 (-).

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)

(j)