Evolution mechanism study of flow slide catastrophes in large waste dumps at the Nanfen iron mine

In this study, we applied historical matching and self-analogism methods, as well as laboratory physical-mechanics tests, to study the evolution mechanism of the collapse-slide-flow slide at the waste dump on the slope of the chair-shaped gully, as well as the evolution mechanism of the subsequent debris flow. Our analyses indicate that (1) an excessive fine particle content results in a relatively large specific surface area and further...