Aquiclude Stability Evaluation and Significance Analysis of Influencing Factors of Close-Distance Coal Seams: A Case Study of the Yili No. 4 Coal Mine in Xinjiang, China

Table 5

Generalization of coal seam occurrence parameters.

Distance between the upper coal seam and aquifer (m)	Upper coal seam mining height (m)	Lower coal seam mining height (m)	Seam spacing (m)
85	3	5	10
	6	9	20
	9	13	30