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本文利用Ansys程序对高拱坝水垫塘衬砌结构进行了全过程计算。在止水结构未破坏以前 ,衬砌块结构可以看作是作用在弹性地基上的板 ,利用点 线接触单元模拟水垫塘衬砌块结构之间的接缝以及衬砌与基岩的接触 ,并对衬砌块与拱端支座的连接形式进行了研究 ;在止水结构破坏后 ,衬砌块结构下部受到方向向上的脉动压力和时均压力 ,拱的作用表现出来 ,并且衬砌块与基岩之间的锚固钢筋开始作用 ,这时的结构可看作是一种“反吊拱”。本文利用弹簧单元模拟衬砌块与基岩之间的钢筋进行计算 ,得到一些用于指导水垫塘设计的结果
In this paper, Ansys program was used to calculate the whole process of the high-arch dam cushion pond lining structure. Before the water-stop structure is not damaged, the lining block structure can be regarded as a plate acting on the elastic foundation. The point-line contact unit is used to simulate the joint between the lining structure of the water cushion block and the contact between the lining and the bedrock. After the water-stop structure is destroyed, the lower part of the lining block structure is subjected to the pulsating pressure and the hourly average pressure in the upward direction, and the effect of the arch is shown. And between the lining block and the bedrock Anchor steel bar began to function, then the structure can be seen as a “anti-hanging arch.” In this paper, the spring element is used to simulate the reinforcement between the lining block and the bedrock, and some results are obtained for guiding the design of the plunge pool