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Experimental Research and Numerical Simulation on Grouting Quality of Shield Tunnel Based on Impact Echo Method
Joint Authors
Yao, Fei
Chen, Guangyu
Su, Jianhong
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-11-03
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
To identify shield grouting quality based on impact echo method, an impact echo test of segment-grouting (SG) test piece was carried out to explore effect of acoustic impedance of grouting layers and grouting defects on impact echo law.
A finite element numerical simulation on the impact echo process was implemented.
Test results and simulation results were compared.
Results demonstrated that, under some working conditions, finite element simulation results and test results both agree with theoretical values.
The acoustic impedance ratio of SG material influenced the echo characteristics significantly.
But thickness frequency could not be detected under some working conditions because the reflected energy is weak.
Frequency feature under grouting defects was more complicated than that under no grouting defects.
American Psychological Association (APA)
Yao, Fei& Chen, Guangyu& Su, Jianhong. 2016. Experimental Research and Numerical Simulation on Grouting Quality of Shield Tunnel Based on Impact Echo Method. Shock and Vibration،Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1118752
Modern Language Association (MLA)
Yao, Fei…[et al.]. Experimental Research and Numerical Simulation on Grouting Quality of Shield Tunnel Based on Impact Echo Method. Shock and Vibration No. 2016 (2016), pp.1-10.
https://search.emarefa.net/detail/BIM-1118752
American Medical Association (AMA)
Yao, Fei& Chen, Guangyu& Su, Jianhong. Experimental Research and Numerical Simulation on Grouting Quality of Shield Tunnel Based on Impact Echo Method. Shock and Vibration. 2016. Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1118752
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1118752