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

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Title: Study on the Correlation of Vibration Properties and Crack Index in the Health Assessment of Tunnel Lining
Authors: Wu, Xuezhen / Jiang, Yujing / Masaya, Kusaba / Taniguchi, Tetsuya / Yamato, Takahide
Issue Date: 2017
Publisher: Hindawi Limited
Citation: Shock and Vibration, 2017, 5497457; 2017
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.
URI: http://hdl.handle.net/10069/37562
ISSN: 10709622
DOI: 10.1155/2017/5497457
Rights: © 2017 Xuezhen Wu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Type: Journal Article
Text Version: publisher
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/37562

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