Multifield Environmental Analysis and Hazards Prevention of Steeply Inclined Deep Coal Mining

Table 1

Effluent from multiple boreholes.

Position	Number	Angle (°)	Diameter (mm)	Length (m)	Horizontal elevation (m)	Water column (mm)
Winch chamber 2312 m	1#	60	113	30	+615.5	Full hole
	3#	45	113	39	+621.4	19
	4#	37	113	40	+613.8	38

Note: after 4# holes water drains out, 1# hole and 2# hole no longer have water.