建立复杂地质结构工程的有限元模型，往往要花大量的时间。利用HyperMesh软件建立复杂地质工程有限元模型，以从复杂部位到简单部位的顺序划分网格为原则，并且对于特定的区域选择合适的网格划分功能。通过网格质量检查，并与Marc软件进行比较。比较分析后认为：HyperMesh是一个高性能的有限元前处理器，利用其强大的网格划分功能对该复杂地质工程中坝体及主要地质条件进行建模，可大大提高建模效率。

The discharge capacity of a pressure spillway tunnel is a key problem involving its scale and sizes, and it also is a hydraulic issue needed to be solved in design. From Bernoullis energy equation of steady uniform pressure flow, the discharge computation way of pressure release tunnel is analyzed theoretically. In combination with experimental data of several practical projects, the experience formula of coefficient of discharge is suggested.