Study on discharge velocity of tailings mortar in dam break based on FLOW-3D

Abstract

Tailings pond is used to store the tailings discharged from the mine after separation and mining. As a potential hazard source with high potential energy, the tailings mortar with high potential energy after dam break is transformed into high-speed dynamic energy sand flow to impact the downstream area through energy conversion. In this paper, through the establishment of a three-dimensional model of a tailings pond, the FLOW-3D software is used for numerical simulation, and the influence of correlation coefficient on the discharge speed of tailings mortar after dam break is analyzed, and the relevant migration law is obtained. The test in this paper can provide a reference for the corresponding disaster and protection engineering research.

Numerical Analysis of Sand Bed Degrading and Sediment Transport Rate Under Tailings Dam Break

“…Petkovsek et al established a tailings dam break model EMBREA-MUD to calculate the water and tailings outflow and the growth of the breach through a two-fluid method (Petkovsek et al, 2021). to simulate and analyze the effects of correlation coefficient on the discharge velocity following tailings dam breaks (Hu et al, 2021). Based on the previous experimental and numerical modeling of tailings dam cutoff models, Wang et al selected key characteristic parameters and used the uncertainty measurement theory to set an assessment standard of the hazard levels for tailingsdam-break disasters (Wang et al, 2021).…”