Water Control Technology of Air Return Crossheading through X08 Collapse Column in 150105 Working Face of Panchengling Coal Mine
The problem of water damage around the collapse column has always been the key to restricting the safe and efficient production of coal mines.The X08 collapse column encountered by the 150105 working face of Panchengling Coal Mine was taken as the research object,and the water conductivity of the collapse column was comprehensively analyzed by using audio electric penetration exploration technology,and it was found that its water conductivity was poor.In order to better improve the safety of mining in 150105 working face,the X08 collapse column has been treated with grouting for water blocking,and through the follow-up geological investigation,it is clear that the X08 subsidence column has good water damage treatment effect.
NETL
NSTL
万方数据
