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Study on the Correlation of Vibration Properties and Crack Index in the Health Assessment of Tunnel Lining

Author(s):
ORCID



Medium: journal article
Language(s): English
Published in: Shock and Vibration, , v. 2017
Page(s): 1-9
DOI: 10.1155/2017/5497457
Abstract:

This paper examines the correlation of vibration properties and crack index of tunnel lining in evaluating risk of collapsing. The visual inspection method, which was widely used, was not reliable enough as the stability of tunnel lining was influenced by the voids and the cracks that were invisible. A new method for the health assessment of tunnel lining was proposed, which can evaluate the whole structural condition according to the vibration properties of tunnel lining. A series of field tests were conducted to evaluate the validity of this new method and to make a comparative analysis with the visual inspection test results. The resultant average spectrum (RAS) of tunnel lining was identified according to the acceleration data of ambient vibration test of Hidake Tunnel in Japan. The tunnel lining crack index (TCI) was also obtained by digital visual inspection test. The correlation between the vibration characteristics and the crack index of tunnel lining was confirmed. However, the voids and the cracks on the inside of the lining were neglected in visual inspection test, which could pose a serious threat to tunnel safety. The vibration measurements by seismometer are an effective way to evaluate the global stability of tunnel lining.

Copyright: © 2017 Xuezhen Wu, Yujing Jiang, Kusaba Masaya, Tetsuya Taniguchi, Takahide Yamato
License:

This creative work has been published under the Creative Commons Attribution 4.0 International (CC-BY 4.0) license which allows copying, and redistribution as well as adaptation of the original work provided appropriate credit is given to the original author and the conditions of the license are met.

  • About this
    data sheet
  • Reference-ID
    10676312
  • Published on:
    28/05/2022
  • Last updated on:
    01/06/2022
 
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