Water Supply and Regulation of Underground Reservoir in Coal Mine considering Coal-Water Occurrence Relationship

Figure 8

Variation law of water pressure in aquifer.

(a) Lower aquifer of model 1

(b) Lower aquifer of model 2

(c) Model 3 (type II aquifer)

(d) Model 3 (upper part of type I aquifer)

(e) Model 3 (lower part of type I aquifer)