Feasibility and Applicability of Hydraulic Mining and Transport in Underground Noncoal Mines

摘要

This study identifies and evaluates deposits of noncoal minerals in the United States that are most amenable to be mined underground hydraulically and transported hydraulically. A method was developed to screen and compare mineral deposits including economic comparisons. The most applicable minerals for hydraulic mining by borehole monitor jets from underground entries are soft uranium sandstones in locations where water is available. This method with hydrotransport could improve the safety, health, and economy of underground uranium mines. Soft oil-bearing sandstones could be mined and transported by this method more safely than by other underground mining methods.