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前言在大坝抗震设计中,动水压力是一个重要因素。库水的可压缩性、坝的柔性、水库形状、坝形和悬浮或沉积在上游坝面的淤泥都是影响动水压力的因素。本文研究了水库和大坝形状对坝体反应和动水压力的影响。这里采用了删去由于完全不对称矩阵所产生的无效项的分块求解方案。本程序将坝体和库水考虑为两个单独的场,在接触面上两个场连续地相互作用着。在水库有限元分析中,采用了欧拉系的位势公式,其中考虑水是无粘性的、无旋的和可压缩的。对于棍凝土坝,用二维平面应力有限元离散,在时域中计算坝和库水系统的瞬
Foreword In the dam seismic design, hydrodynamic pressure is an important factor. The compressibility of the reservoir water, the flexibility of the dam, the shape of the reservoir, the shape of the dam, and the sludge that is suspended or deposited on the upstream dam surface are all factors that affect the hydrodynamic pressure. This paper studies the effect of reservoir and dam shape on dam response and hydrodynamic pressure. This uses a block solution scheme that eliminates invalid terms due to a perfectly asymmetric matrix. This procedure considers the dam and reservoir water as two separate fields, with two fields interacting continuously on the contact surface. In the finite element analysis of the reservoir, the Eulerian potential equation was used, considering that the water is non-viscous, non-rotary, and compressible. For stick condensing earth dams, use two-dimensional plane stress finite element to discretize, and calculate the moment of the dam and reservoir water system in the time domain.