ZYWL-6000DS型定向钻机在采空区水治理中的应用

Application of ZYWL-6000DS Directional Drilling Rig in Goaf Water Treatment

为了探放7301工作面采空区内积水,消除水害威胁,防止7303工作面材料巷道掘进期间发生透水事故,采用定向钻进技术施工2个钻孔。定向钻孔按预期设计轨迹进行钻进,精确探测了采空区积水位置,并进行了分层位有序放水,其中1#孔钻进至积水区水位中部,透水后出水量约120 m ^3/h;2#孔钻进至积水区水位底部,透水后出水量约100 m^ 3/h,有效解决了采空区水灾害。

In order to explore and drain the accumulated water in the goaf of 7301 working face,eliminate the threat of water hazard,and prevent the water permeability accident during the material tunnel excavation of 7303 working face,two drilling holes were constructed by directional drilling technology.The drilling holes were drilled according to the anticipated design trajectory,accurately detecting the accumulated water level in the goaf,and orderly drainage at different layers was carried out.Among them,No.1 hole is drilled into the middle of the water level in the water accumulation area,and the water output is about 120 m 3/h after percolation;No.2 hole is drilled into the bottom of the water level in the water accumulation area,and the water output is about 100 m 3/h after percolation,which effectively solves the water calamities in the goaf.