Study on Hydraulic Connection and Seepage Law of Goaf Groups in Coal Mine Underground Reservoir

Figure 11

The value cloud map and flow direction above the coal seam floor. (a) The range of 0 ~ 5.1 m from the coal seam floor. (b) The range of 15~20 m from the coal seam floor. (c) The range of 25~30 m from the coal seam floor.

(a) The range of 0 ~ 5.1 m from the coal seam floor

(b) The range of 15~20 m from the coal seam floor

(c) The range of 25~30 m from the coal seam floor