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针对拱坝静力分析的有限元法计算复杂，且存在解决坝型选优问题时精度不高等缺点，以壳体理论和能量原理为基础，提出了薄拱坝静力分析的样条半解析法．它吸收了样条函数方法的一般优点，避免了有限元方法中计算繁琐的不足，且能满足精度要求．给出了计算实例，并与有限元法和拱梁模态法的结果进行了对比．
In view of the complicated calculation of finite element method for arch dam static analysis and the shortcomings of low accuracy when solving dam type optimization problems, the semi-analytical spline analysis of thin arch dam based on shell theory and energy principle is proposed law. It incorporates the general advantages of the spline function method, avoids tedious calculations in the finite element method, and satisfies the accuracy requirements. The calculation example is given and compared with the results of finite element method and arch mode method.