通过对一个100 m高的面板堆石坝的有限元计算发现,网格的粗细对堆石体的计算结果影响很小,但对面板的影响不可忽略。经对比研究发现,对于面板这样的薄板结构,如果单元划分较粗并且位移模式采用和坝体单元一样的线性位移模式,则明显影响其计算精度。 Finite element analysis of a 100 m-high concrete face rockfill dam shows that the thickness of the mesh has little effect on the calculation results of the rockfill body, but the influence on the face plate can not be neglected. The comparative study shows that, for a thin plate structure such as a panel, if the cell division is coarse and the displacement mode adopts the same linear displacement mode as the dam body unit, its calculation accuracy is obviously affected.