【摘要】 以三圆心拱坝为例，根据一些最基本的原始数据，推求出拱坝所有的几何设计参数，从而可在整体上对拱坝进行优化设计，在短时间内获取合理的设计方案。文中将推求工作条理化、公式化，如与拱坝应力分析程序相结合，就可能在计算机上进行拱坝多方案的优化设计。更多还原

【Abstract】 The gcometric parameters of arch dam are determined according to basic and original data and taking the three circle centers arch dam as an example in this paper. The arch dam can be designed optimally in overal and a reasonable design alternative can be obtained in a short time. If the calculation of arch dam gcometric parameters is connected with the arch dam stress analysis programm, the comparison design of multi-alternatives of arch dam can be practised on computer and the purpose of optimal design can be reached.更多还原