王庄煤业3401采空区积水探放技术应用

针对王庄煤业3号煤层3401采空区积水问题,通过超前钻探精确掌握了采空区分布范围,根据采空区位置,设置专用钻场布置3个疏放水孔对采空区进行疏放水,通过对疏放水增量及钻孔水压监测,结果表明疏放水量增加21333.6 m 3后趋于稳定,疏放水孔水压也由1.58 MPa降低到了0 MPa左右,证明采空区积水已经疏放完毕,为矿井消除了水患影响,保证了矿井安全生产。

Application of Water Exploration and Release Technology in 3401 Goaf of Wangzhuang Coal Industry

Aimed at No.3 Coal Seam in Wangzhuang Mining 3401 goaf water problems, through the advanced drilling accurate mastery of the mined-out area distribution, according to the position of mined-out area, set up special drill field layout three drainage hole to drainage goaf water, through the monitoring of drainage water incremental and borehole pressure, the results shows that drainage water tends to be stable after increased 21 333.6 m3,drainage water hole ater pressure was reduced from 1.58 MPa to 0 MPa, this proofed that the goaf water is drainage for mine flood, and guarantee the mine safety production.