无限深透水坝基悬挂式垂直防渗体保角变换-边界元渗流计算

无限深透水坝基轮廓复杂，透水层深度大，其渗流计算精度难以保证。本文提出用保角变换-边界元法计算含有无限域渗流计算问题。保角变换将复杂的坝基轮廓线边值问题变换为水平线边值问题，使渗流计算边界问题大大简化；边界元法在求解边界简单的无限域渗流方面优势明显，两种方法联合使用进行求解，能充分发挥保角变换和边界元法各自优点。通过组合法计算结果表明：联合法计算更加快捷、简单，计算结果更加符合无限域的实际情况，可为解决无限域渗流问题提供一条途径。

Seepage calculation for suspended vertical impervious body on the infinite deep pervious dam foundation based on conformal transformation and boundary element method

The outline of the infinite deep dam foundation is quite complex, and its permeable layer is deep.This unique characteristic determines that it would not be an easy task to guarantee or achieve the calculation accuracy of seepage.Therefore, in terms of the calculating method, conformal transformation&boundary element method is proposed and adopted in this paper to deal with problems which are associated with seepage calculation problem of infinite domain.Conformal transformation method can change complicat-ed dam foundation outline boundary problems to horizontal boundary problem, which will greatly simplify the boundary problem of seepage calculation.Boundary element method shows its great superiority in coping with seepage problem of infinite domain whose boundary is easy to calculate.The combination of the two methods can give full play to their respective advantages.By means of adopting the combination calculation method, the calculated results illustrate the fact that the combination method is much faster and simpler, the result is more accurate and in accordance with the real situation of the infinite field, which provides an approach to dealing with the infinite field seepage problems.