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通过对湖南某尾矿坝细粒尾砂的常水头渗透试验,进行了细粒尾砂孔隙比与渗透系数常用对数的拟合分析,建立了二者之间的数学表达式,对不同孔隙比的细粒尾砂尾矿坝进行了渗流数值模拟分析,得出孔隙比与尾矿坝浸润线埋深之间的关系,提出了该尾矿坝在渗流作用下安全运行的最优孔隙比范围。
Through the constant head penetration test of the fine tailing sand in a tailing dam in Hunan Province, the fitting analysis of the common logarithm of void ratio and permeability coefficient of fine tailings sand was carried out, and the mathematical expression was established between the two. Compared with the tailings tailings dam, the numerical simulation of the seepage flow is made. The relationship between the void ratio and the buried depth of the tailing dam infiltration line is obtained, and the optimum porosity ratio range.