南芬露天矿从2005年开始完全进入封闭圈形成深凹露天开采,由于前期排水工作准备不足,致使排水工作滞后,影响到了矿山的正常生产。在2006年里,矿上逐渐调整了排水系统的设计,并在开拓方式上进行了改变,使矿山因排水的被动生产形势逐渐变为主动,最终也将排水工作步入了良性循环的轨道。 Nanfen open-pit mine from 2005 began to enter the closed loop into a deep open pit mining, due to lack of preparation for the previous drainage, resulting in lag drainage work, affecting the normal production of mines. In 2006, the mine gradually adjusted the design of the drainage system and made changes in the way of exploration. As a result, the mine gradually became active due to the passive production of drainage water and eventually moved the drainage work into a virtuous circle.