Practical study on electrical resistivity monitoring of No.F6225 working face in Buliangou Coal Mine
Because the main coal seam of Buliangou Coal Mine faces the threat of ash confined water,in order to achieve more safe and efficient mining,taking the No.F6225 working face as the study case,combined with the actual situation of the complex geological con-ditions,comprehensive and accurate detection of the working face was carried out through a long distance advanced detection method combining"directional drilling+drilling geophysical exploration".The results showed that in the No.F6225 working face of the Bu-liangou Coal Mine,several abnormal visual resistivity areas were found,and the area is relatively water-rich.When the mining was reached near the above area,there was easy to exist the danger of the roof water inrush.Through the organic combination of hydrogeolog-ical exploration,pre-jet grouting,drainage equipment upgrading,roadway support strengthening and inspection and monitoring measures,the risk of roof water inrush can be effectively reduced,and the safety and stability of coal mine roadway can be improved.The relevant suggestions for the follow-up working face mining work for your reference was put forward.
coal mine working faceelectrical resistivitywater-rich area
万方数据
维普
