The project "Investigation of Ecological Restoration Project of Deserted Mines in Shiqi River Basin" completed in 2019 includes waste residue yards in four regions, with a total area of about 18.48 hm. This project involves many areas and a wide area, and the stacking of waste residue is irregular, which makes it difficult to explore. With many years' experience in similar projects, the company has found out the law of waste residue accumulation by comprehensive investigation and analysis by various means.