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为分析初期坝的排渗能力对浸润线的影响程度,采用数值模拟方法对初期坝在不同排渗能力下浸润线的位置进行研究.在将尾矿坝基本剖面概化的基础上,采用GeoStudio的地下水渗流分析模块SEEP/W对初期坝在不同排渗能力时浸润线的位置进行数值模拟.首先构建尾矿坝基本剖面概化模型;然后分析尾矿库初期坝在不同排渗能力下对于浸润线高度的影响.研究结果表明:当初期坝排渗能力降低10倍时,浸润线与初期坝上游坡面交点距坝底的距离为1.7 m,即初期坝排渗能力对浸润线影响明显;随着初期坝排渗能力降低,浸润线位置逐渐被抬高,并最终从堆积坝的坝坡溢出,严重影响尾矿坝稳定性.该研究成果可对尾矿库设计和管理提供理论依据和技术支撑.
In order to analyze the influence degree of the initial dam drainage capacity on the infiltration line, the numerical simulation method was used to study the infiltration line position of the initial dam under different drainage capacity.Based on the generalization of the tailings dam basic profile, GeoStudio The groundwater seepage analysis module SEEP / W is used to simulate the infiltration line position of initial dam under different drainage capacity.Firstly, a generalized profile model of the tailings dam is constructed.And then, The results show that when the discharge capacity of the dam is reduced by 10 times, the distance between the infiltration line and the upstream slope of the initial dam is 1.7 m away from the bottom of the dam, that is, the infiltration capacity of the initial dam has a significant effect on the infiltration line ; With the decrease of initial drainage capacity of dam, the position of infiltration line is gradually raised and finally overflows from dam slope of dam, which will seriously affect the stability of tailings dam.The results of this study can provide theoretical basis for the design and management of tailings dam And technical support.