Figure 8
From: Evaluation of coal seam floor water bursting in multi-aquifer Gequan coal mine, China

Influence factors of water bursting about the Ordovician limestone after data normalization: (a) water pressure; (b) measured specific yield; (c) equivalent thickness of effective aquiclude; (d) brittle rock thickness under mining pressure damage zone. Influence factors of water bursting about the Benxi limestone after data normalization: (e) water pressure; (f) measured specific yield; (g) equivalent thickness of effective aquiclude; (h) brittle rock thickness under mining pressure damage zone. Influence factors of water bursting about the geological structure after data normalization: (i) fault distribution; (j) collapse column distribution; (k) endpoint and fault intersection distributions; (l) fault-scale index.