Abstract Shaking table model tests were carried out to study the seismic behaviors of double box utility tunnel with joint connections and the surrounding soil. The seismic wave obtained from 1952 Taft earthquake was employed as the input in this study, and its PGA has been adjusted to 0.2 g, 0.4 g, 0.8 g, and 1.2 g, respectively. In addition, a series of sine waves with PGA of 0.2 g and frequencies of 5 Hz, 10 Hz, 15 Hz, 20 Hz, 25 Hz, and 30 Hz were applied to study the effect of frequency characteristics on seismic behavior of the utility tunnel and the surrounding soil. The testing results show that the laminar soil container does not impose significant boundary effect, and the dynamic earth pressure response is significantly influenced due to existence of the joint connection. Besides, the effect of soil-structure interaction on seismic behaviors is becoming even more obvious as the input PGA increases. The acceleration response is also significantly influenced by the dynamic property of the soil. Greater bending moment occurs at the corners of the structure, and its increasing ratio will decrease with an increasing input PGA magnitude. Lastly, the effect of frequency is significant. Therefore, it is noteworthy that the possible effect of natural frequency is considered when the utility tunnel is under construction.

中文翻译：

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基于振动台模型试验的联管节双箱式综合管廊抗震性能研究

摘要 通过振动台模型试验，研究了双箱式管廊联管隧道与围土的抗震性能。本研究以1952年塔夫脱地震的地震波作为输入，其PGA分别调整为0.2 g、0.4 g、0.8 g和1.2 g。此外，应用一系列PGA为0.2 g，频率为5 Hz、10 Hz、15 Hz、20 Hz、25 Hz和30 Hz的正弦波来研究频率特性对综合管廊抗震性能的影响和周围的土壤。试验结果表明，层流土容器不产生显着的边界效应，由于节点连接的存在，动态土压力响应受到显着影响。除了，随着输入 PGA 的增加，土-结构相互作用对地震行为的影响变得更加明显。加速度响应也受土壤动态特性的显着影响。更大的弯矩出现在结构的拐角处，其增加的比率将随着输入 PGA 幅度的增加而减小。最后，频率的影响是显着的。因此，值得注意的是，综合管廊在施工时考虑了固有频率的可能影响。频率的影响是显着的。因此，值得注意的是，综合管廊在施工时考虑了固有频率的可能影响。频率的影响是显着的。因此，值得注意的是，综合管廊在施工时考虑了固有频率的可能影响。