石铜业公司露天矿的深部开采因作业面积狭小、涌水大，上部台阶欠剥多，深部疏干排水工程未开展等因素的影响而出现效率下降，开采成本大幅上升，经营亏损。为扭转这种局面，从深部采矿方案的改进入手，采取一系列技改措施，取得显著成效，实现深部高效优质开采。 The deep mining of the open-pit mine in ShiClian Mining Co., Ltd. resulted in a decline in efficiency due to factors such as small operation area, large gushing water, excessive stripping of the upper steps, and lack of deep drainage and drainage works. As a result, mining costs increased sharply and suffered losses. In order to reverse this situation, we started with the improvement of the deep mining program and adopted a series of technical improvement measures to achieve remarkable results and achieve deep and efficient high-quality mining.