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Study on dynamic response of saturated soft clay under the subway vibration loading I: instantaneous dynamic response

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Abstract

In this paper, the results of the instantaneous dynamic response of saturated soft clay under the subway vibration loading are presented. Based on the assumption of soil as viscoelastic medium, wave equation under forced vibration of three-dimensional anisotropy is derived, and time–space domain semi-analytical solution is given through Laplace and Fourier transform and their inverse transform using MATALB. Taking Shanghai metro line No. 2 for example, the dynamic monitoring is conducted with embedded earth pressure gauges and pore piezometers around the tunnel, and the horizontal response amplitude of dynamic stress of soil around the tunnel is calculated by the method presented in this paper with the laboratory Global Digital System test apparatus to determine the related calculation parameters. Then, a comparative analysis is made between calculation result and continuous field monitored data, and it is found that the attenuation trend of the two cases agree well with each other both in the horizontal and vertical direction, which indicates that the method presented in this study is reasonable.

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Acknowledgments

This work is supported by the research grant (41072204) and (40872178) from National Natural Science Foundation of China and Shanghai Leading Academic Discipline Project, Project Number:B308.

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Authors and Affiliations

  1. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai, 200092, People’s Republic of China

    Yiqun Tang

  2. Department of Geotechnical Engineering, Tongji University, Shanghai, 200092, People’s Republic of China

    Xingwei Ren, Yiqun Tang, Yuandong Wang, Xi Zhang & Sha Liu

  3. Urban Construction College, Zhejiang Shuren University, Hangzhou, 310015, People’s Republic of China

    Yiqing Xu

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  1. Xingwei Ren
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Correspondence to Yiqun Tang.

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Ren, X., Tang, Y., Xu, Y. et al. Study on dynamic response of saturated soft clay under the subway vibration loading I: instantaneous dynamic response. Environ Earth Sci 64, 1875–1883 (2011). https://doi.org/10.1007/s12665-011-1000-5

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  • DOI: https://doi.org/10.1007/s12665-011-1000-5

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