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Shaking Table Model Test Design for Utility Tunnel

机译:振动台式模型试验设计为公用事业隧道

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摘要

Three methods are mainly used in the seismic research of underground engineering, including theoretical research, numerical calculation and experimental research. In this paper, a detailed design of a utility tunnel shaking table test is carried out. First, the selection of the shaking table, model box and sensor were analyzed and studied. Then the test scheme was designed in detail. The design of the test scheme mainly includes 4 aspects. These 4 aspects are the similarity ratio design, the reinforcement of model structure, the input seismic wave and the sensor arrangement. In the design of similarity ratio, E, p, L and a are the basic quantities. The other variables are converted by the idea of combination dimensional analysis and kinetic equation. The height of the model box is not more than 2.5m according to the previous research results. The height of the model box should be smaller, and the height of the model box is 1.8m by calculation. The reinforcement ratio of the equal area is adopted. El-Centro wave, Kobe wave and Taft wave were selected in the experiment. One way step by step loading system was adopted in the test. At last, the position and quantity of the 4 kinds of sensors used in the experiment were studied, and the detailed layout of sensors were given.
机译:三种方法主要用于地下工程的地震研究,包括理论研究,数值计算和实验研究。在本文中,执行了公用事业隧道振动台测试的详细设计。首先,分析并研究了振动台,模型盒和传感器的选择。然后详细设计了测试方案。测试方案的设计主要包括4个方面。这4个方面是相似性比设计,模型结构的加强,输入地震波和传感器装置。在相似性比例中,E,P,L和A是基本数量。通过组合尺寸分析和动力学方程的思想,转换其他变量。根据先前的研究结果,模型框的高度不超过2.5米。模型框的高度应较小,模型框的高度通过计算为1.8米。采用相等区域的加固率。在实验中选择了EL-Centro波,神户波和曲面波。在测试中采用了步进装载系统的一种方式。最后,研究了实验中使用的4种传感器的位置和数量,并给出了传感器的详细布局。

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