Height of Mining-Induced Fractured Zones in Overlying Strata and Permeability of Rock with Nonpenetrative Fractures

<div>Permeability increase curves of rock with nonpenetrative fracture affected by coal mining: (a) argillaceous sandstone; (b) siltstone; (c) fine-grained sandstone.</div>

Geofluids

fig9

Figure 9

Figure 9: Height of Mining-Induced Fractured Zones in Overlying Strata and Permeability of Rock with Nonpenetrative Fractures 