大型煤矿井筒十字线的恢复与重建

On Recovering & Rebuilding Shaft Cross Line of Large Coal Mine

矿井建成后,十字中线点常遭破坏,有时破坏的十分严重,给补设造成很大困难,从一个实例出发对恢复十字线点的方法做一具体的阐述。

When a coal mine is set up, the points on the cross middle line are often destroyed, and sometimes destroyed seriously. It is difficult to remedy. This paper gives an example to expound a way for recovering the point on the cross middle line.