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将高墩渡槽简化为高墩矩形水箱耦联系统，应用流体线性势流理论及Ｈａｍｉｌｔｏｎ原理导得耦联系统的运动方程．运用Ｌａｐｌａｃｅ变换及其数值逆变换技术分析了耦联系统的地震反应，计算表明，地震作用会对墩体底部产生很大的附加动弯矩
The high pier aqueduct is simplified as a high pier rectangular tank coupling system. The equations of motion of the coupled system are derived by applying the fluid potential flow potential theory and the Hamilton principle. The seismic response of the coupled system is analyzed by using the Laplace transform and its numerical inverse transform. The calculation shows that the seismic action will produce a great additional moment of motion on the bottom of the piers