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首页> 外文会议>Proceedings of the 2nd international symposium on Asia urban geoengineering >A Study on the Influence of Water Layer on the Seismic Response of Immersed Tunnel
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A Study on the Influence of Water Layer on the Seismic Response of Immersed Tunnel

机译：水层对沉管隧道地震响应影响的研究

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摘要

Immersed tunnel is widely adopted in underwater transportation system. According to literature reviews and current studies, no experiments for the influence of water layer on the dynamic behavior of immersed tunnel under seismic loading have been reported. In order to solve this problem, a series of shaking table tests were conducted in this study. Two groups of tests are designed. One is the immersed tunnel model in saturated sand, the other one is the immersed tunnel in saturated sand under a water layer. This study highlights the experimental results composed of the excess pore pressure of soil layer, the acceleration of runnel model, and the peak dynamic strain of tunnel model. These results indicate that for vertical earthquake loading, the water layer influences little on the seismic behavior of soil. Three is no apparent difference between pore pressure of saturated sand and saturated sand under a water layer. However, the water layer significantly affects the dynamic response of the tunnel model. The dynamic strain of the tunnel model located in saturated ground under the water layer is larger than that in saturated ground.
机译：沉管隧道在水下运输系统中被广泛采用。根据文献综述和当前研究，尚无关于水层对地震荷载下沉管隧道动力行为影响的实验的报道。为了解决这个问题，在这项研究中进行了一系列的振动台测试。设计了两组测试。一种是在饱和砂土中的沉管隧道模型，另一种是在水层下的饱和砂中的沉管隧道模型。这项研究突出了由土层的过大孔隙压力，漏斗模型的加速度以及隧道模型的峰值动态应变组成的实验结果。这些结果表明，对于垂直地震荷载，水层对土壤的地震行为影响很小。三是饱和砂和水层下饱和砂的孔隙压力没有明显差异。但是，水层会显着影响隧道模型的动力响应。位于水层下饱和地基中的隧道模型的动态应变大于饱和地基中的隧道。

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  • 来源
  • 会议地点 Changsha(CN)
  • 作者

    X. Cheng; L. Jing; J. Cui; Y. Li; R. Dong; G. Wang;

  • 作者单位

    Key Laboratory of Earthquake Engineering and Engineering Vibration of China Earthquake Administration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin, China;

    Key Laboratory of Earthquake Engineering and Engineering Vibration of China Earthquake Administration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin, China;

    School of Civil Engineering, Guangzhou University, Guangzhou, China;

    Key Laboratory of Earthquake Engineering and Engineering Vibration of China Earthquake Administration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin, China;

    Key Laboratory of Earthquake Engineering and Engineering Vibration of China Earthquake Administration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin, China;

    School of Civil Engineering, Guangzhou University, Guangzhou, China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Immersed tunnel; Shaking table tests; Seismic vibration direction; Water layer; Seismic response;

    机译：沉管隧道振动台测试；地震振动方向；水层；地震反应;

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