Comparative Study on Tailings Dry and Wet Stacking Process

In China, with the increasing of the tailings, there appears more and more issues coming from the resource, environment, safety and land. Dry tailings stacking is gradually emerging in recent years, and it is a kind of both domestic security and environmentally friendly tailings disposal technology. But there are still not a whole and useful standards for designing, building, operation and management, and while using the dry tailings stacking, there are need more sum up and improving. It needs more standardized, improved. In this study, the stability variation and design requirements of the dry stack tailings are studied comprehensively using experimental test, numerical calculation and theoretical analysis methods, Compared the mechanical properties of materials, the variation between dam height, slope ratios and safety factor, and the difference between wet tailings stacking design and dry tailings stacking design. Finally the key technologies for the dry tailings stacking design were illustrated and it could give the support for mining enterprises.