一、前言建国以来,我国金属矿山露天开采有了很大的发展,随着露天开采技术不断的提高,露天矿开采的深度越来越深,一些山坡露天矿相继转为凹陷露天矿,因此,黑色、有色金属矿山的开采设计过程,经常会遇到深部排水问题。露天排水是矿山总体开采方 I. Introduction Since the founding of the People’s Republic of China, the open-pit mining of metal mines in our country has made great progress. With the continuous improvement of surface mining technologies, the depth of open-pit mines has become deeper and deeper. Some open- Black, non-ferrous metal mining design process, often encounter deep drainage problems. Open drainage is the mine’s overall mining side