通过对河曲露天矿的排水布局进行研究,对汇水面积、汇水量、排水设备能力等相关技术参数进行核算,以现场形成的采矿布局为基础,以百年一遇的暴雨量分析了排水布局的合理性与设备能力的可靠性,确定了河曲露天矿雨季期间抵御暴雨的能力满足要求,为河曲露天矿的雨季防排水安全工作提供了技术支持。 Based on the research on drainage layout of Hequ open-pit mine, the technical parameters of catchment area, catchment volume, drainage capacity and so on are calculated. Based on the mining layout formed on site, the drainage layout is analyzed based on the once-in-hundred-year rainfall Rationality and reliability of equipment, the ability to meet the requirements of rainstorm resistance during the rainy season of Hequ was determined, which provided technical support for flood prevention and drainage work in the rainy season in Hequ.