摘要
英布鲁水电站枢纽整体三维渗流数学模型的模拟区域包括河床式水电站,泄水建筑物,左、右土坝及两岸山体。设置有限元结点9400点,空间单元4.6万多个,为大型水利枢纽整体三维渗流数学模型之一。文中导出了混合阶空间4面体单元的渗透矩阵,建立了虚点,虚元与空间单元沿纵向自动剖分定向控制相结合的技术,来反映土层尖灭以及土层和建筑物复杂的轮廓变化。该项研究成果为枢纽中的土坝方案优选提供了论据。根据水电站枢纽整体三维模型计算成果提出的若干建议,已被工程设计部门采纳。
A three dimensional seepage methematical model is applied for INBLU key hydroelectric project. The foundation of the hydroelectric power plant and the spillway, the left and right earth dams, and the mountain slopes of the river banks are all included in the model. This model is one of the larger seepage mathematical models in hydraulic engineering in our country. The hybrid order tetrahedral elements are used and some finite element technipues are improved in this paper. The results of the numerical solution are adopted by the key hydroelectric project design department.
