The Steady Seepage Line Equation of Ionic Rare Earth Ore (IREO) In Situ Leached with Long Strip Bare Feet and Its Application

Without a reliable design method for the leaching and seepage step of in situ (ISL), problems such as low comprehensive resource recovery rate frequent geological disasters landslides are prominent. This study established simplified “liquid injection-collection” plane model ISL with linear barefoot type rare earth mine research object. The steady line equation was derived based on groundwater dynamics Dupuit assumption. Then, engineering verification calculation error analysis were performed. is expressed piecewise function, where liquid injection area upper half ellipse line, one non-liquid parabola. increases along flow field direction. gradient, bedrock range, relative permeability coefficient have limited influence equation. can be fairly applied ISL. provide theoretical basis “prior prediction (design)” injection/collection” process