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管涌会给尾矿坝的的安全带来很大威胁,因此进行管涌的现场试验和室内砂槽模型试验,观察并分析了管涌发生、发展并导致溃坝的机理和过程。管涌的发生与最大有效粒径、饱和容重、渗透系数、下游滤层倾角、地层中土的组成成分、土的级配、水力梯度、土的结构、表面覆盖层土体的内摩擦角、黏滞系数、覆盖层厚度、黏聚力、土的饱和度等因素有关,是一个多元非线性的复杂问题。
Piping will bring a great threat to the safety of tailings dam. Therefore, field tests of piping and sand tank model tests are conducted. The mechanism and process of tube burst occurrence and development and dam breakage are observed and analyzed. The occurrence and maximum effective particle size of pipe, saturated bulk density, permeability coefficient, downstream filter layer inclination, composition of soil in the formation, soil gradation, hydraulic gradient, soil structure, soil surface friction angle, viscosity Lag coefficient, overburden thickness, cohesion, soil saturation and other factors, is a complex and non-linear complex problem.