Abstract:In order to study the stability of the Bailing Bay dump in Yinshan Mine, based on the on-site production geological conditions, the limit equilibrium method was used to comprehensively analyze the stability of the Bailing Bay dump. The study found that high stability of the Bailing Bay dump could be maintained under normal working conditions and maximum rainfall, which can ensure the safe and efficient production of Yinshan open-pit mining field, and at the same time provide a reliable theoretical basis for the heightening and lifting section of the later dumping site.