Abstract
In North China coal basin, there is an accident: the water which comes from Ordovician system aquifer (O2) discharges into underground coal mines. The coal mining operations would be seriously threatened by this kind of accident. In order to solve this problem, the characteristics of various exploration methods have been discussed. A comprehensive approach involving hydrogeological analysis, geophysical prospecting, hydrogeological drilling, and hydrogeological field test was proposed to explore the groundwater recharge channel. A typical North China coal mine, Siwan coal mine, was taken as an example. The groundwater recharge channel on F8 fault was precisely explored and plugged. After the curtain grouting, the water discharge rate per unit of drawdown was dropped from 12.0 to 7.0 m3/(h m), and the water yield in coal mine was reduced by 600 m3/h. A much safer condition can be provided for Siwan coal mine, avoiding the waste of water resource.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
