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坝坡浸润线是尾矿坝的生命线,它是直接影响坝体安全的一个非常重要的因素。将无单元Galerkin法应用于尾矿坝渗流场及坝体内自由面的模拟计算。详细介绍了无单元Galerkin法的基本理论、边界条件处理方法和自由面处理方法等。在此基础上采用IDL语言编制了二维无单元法的可视化计算软件EFM。最后以风水沟尾矿坝为例,采用无单元法计算了该尾矿坝渗流场分布,并和有限元计算结果进行了对比分析。计算结果表明,采用无单元法可以很好模拟有自由面的尾矿坝渗流场分布,为尾矿库的安全生产与管理提供一定的科学依据。
The dam infiltration line is the lifeline of the tailings dam, which is a very important factor that directly affects the safety of the dam. The unitless Galerkin method is applied to the seepage field of tailings dam and the simulation of free surface in dam body. The basic theory of element-free Galerkin method, the method of boundary conditions and the method of free surface treatment are introduced in detail. Based on this, a two-dimensional element-free visual calculation software EFM was compiled using IDL language. Finally, taking the Fengshuigou tailings dam as an example, the seepage field distribution of the tailings dam is calculated by the unitless method, and the results are compared with the finite element results. The calculation results show that the unit cell method can well simulate the seepage field distribution of tailings dam with free surface and provide a scientific basis for the safe production and management of tailings dam.