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为研究赣南某离子型稀土矿边坡稳定性影响因素,结合其他岩土边坡失稳因子以及赣南某离子型稀土矿原地浸矿开采实际,采用正交分析方法,从内摩擦角、黏聚力、浸矿液高度、容重进行对比分析,对边坡失稳因子的敏感性及交互性进行研究。结果表明:离子型稀土矿原地浸矿开采中,边坡稳定性安全系数随着内摩擦角、黏聚力增大而明显增大,随浸矿液高度增加而显著减小,随容重变化影响不大,浸矿液高度、内摩擦角、黏聚力、容重对于边坡稳定的敏感性依次减小,前三者对边坡稳定性影响最显著,而各参数交互作用对安全系数影响相当。结果为稀土矿边坡支护提供了理论指导依据。
In order to study the influencing factors of the stability of an ionic rare earth mine slope in southern Jiangxi Province, combined with the instability factors of other rock-soil slopes and the in-situ leaching and mining of an ionic rare earth mine in southern Jiangxi Province, , Cohesion, leaching solution height and bulk density were compared, and the sensitivity and interaction of slope instability factors were studied. The results show that the safety factor of slope stability increases with the increase of internal friction angle and cohesion, and decreases with the increase of ore leaching solution. With the change of bulk density The sensitivity of the leaching solution height, internal friction angle, cohesion and bulk density to slope stability decreases in turn, the former three have the most significant impact on the slope stability, and the interaction between the parameters affects the safety factor quite. The results provide a theoretical basis for slope support in rare earth mines.