矿山疏干过程中地下水位将大幅度地下降,部份地段还会由承压流转变为无压流。有时水位下降的幅度甚至可以达到数百米,远远超过了含水层的厚度。因此,这类问题需用三维流模型来模拟。 等参数法是研究三维渗流问题的一种有效方法。Pinder和Frlnd于1972年首先把迦辽金等参数有限 During the process of mine drainage, the groundwater level will drop drastically, and some sections will also change from pressure-bearing flow to pressure-free flow. Sometimes the drop in water level can even reach hundreds of meters, far exceeding the thickness of the aquifer. Therefore, such problems need to be simulated using 3D flow models. Equal parameter method is an effective method to study the three-dimensional seepage problem. Pinder and Frlnd first limited the parameters of the Galerkin in 1972