Where should the vertical shaft and inclined shaft be built in the ore body, footwall or footwall respectively?
Inclined shaft development means that the wellhead and the bottom hole are not on a horizontal plane, and the inclined shaft and the bottom hole have a certain angle (angle). The slope of inclined shaft generally ranges from 5 degrees to 30 degrees. Vertical shaft development means that the wellhead is vertical to the bottom of the well. At present, vertical shafts are generally located in coal seams.