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结构动力模型试验与动力模型破坏试验中,保持模型与原型相似的基本要求与处理技巧根据试验目的不同,而有所差别。这里就地下输水隧道考虑流-固耦合的动力模型试验进行理论研究和数值模拟,研究中根据工程的实际及模型试验选料的经济实用性,提出当原型与模型弹性模量不相等时的动力相似比尺是以围岩的弹性模量比来计算的规律。为今后复杂的地下水工结构动力模型的结构动力特性和破坏试验的相似问题拓宽思路,提供有用的参考价值。
Structural dynamic model test and dynamic model failure test, the maintenance of the prototype and the prototype similar to the basic requirements and processing techniques according to the purpose of the test is different, but different. In this paper, theoretical research and numerical simulation are carried out on dynamic model tests of underground water conveyance tunnel considering flow-solid coupling. According to the practicality of the project and the economical practicability of the model test materials, it is proposed that when the elastic modulus of the prototype and the model is not equal Dynamic similarity scale is based on the elastic modulus of surrounding rock to calculate the law. In order to broaden the train of thought and provide a useful reference value for the structural dynamic characteristics of the complex dynamical model of underground hydraulic structures and the similar problems of the damage test in the future.