Formation Mechanism and the Height of the Water-Conducting Fractured Zone Induced by Middle Deep Coal Seam Mining in a Sandy Region: A Case Study from the Xiaobaodang Coal Mine

Figure 3

Detection results of boreholes. (a) XSD4 borehole, (b) XSD5 borehole, (c) XSD6 borehole, and (d) location map of boreholes.

(a)

(b)

(c)

(d)