Abstract:According to the actual production and operation conditions of a mountainside tailings pond, two methods are used to analyze and compare the flood in the tailings pond. Under the premise of fully considering the influence of the backwater steel pipe in the tunnel, the discharge capacity of the drainage system in the tailings pond is analyzed and calculated in detail. Finally, the flood regulation calculation of the tailings pond is carried out by using the water balance method. According to the results of the flood regulation calculation, it is concluded that the flood control capacity of the tailings pond meets the requirements of the specification under the condition that the reservoir water level and the length of the dry beach are controlled according to the requirements and the drainage system is working normally. The purpose of this study is to provide technical support and guarantee for mining enterprises in the process of flood discharge and backwater facilities and safety flood management of tailings pond, and also to provide reference for fine management and standardized management of tailings pond.