计算均质土坝渗流问题的常用方法有三段法和两段法,它们在求解过程中需要试算图解,计算 精度不高且人工计算量大。为此,把该渗流问题等价于一非线性优化问题,可用作者研制的加 速遗传算法(AGA)进行求解。实例的计算结果说明,AGA计算简便,求解精度高,通用性强,为三 段法在实际土坝工程设计中的广泛应用提供了新的有力工具。

The threesection method and twosection method are usually applied to seepage computation of homogeneous earth dam.The two methods demand trialanderror o r graphic method during resolving the problem.The precisions of calculat ed results are not only low but also the operation needs large amount of manual computation.For this reason, in this pa per,it is pointed out that the seepage computation problem is essentially a nonl inear optimal problem,which can be resolved with the acclerating genetic algorit hm (AGA) developed by the authors.The results of the application examples show t hat the AGA is much more convenient in use high precision in result and wide ra n ge of validity. It is a new strong tool for widely applying the threesection m ethod to engineering project of practical earth dams.