Time-Frequency Analysis of Impact Echo Signals of Grouting Defects in Tunnels
Source abstract
Abstract
Abstract—Defects in the grouting layer are hidden problems of underground engineering quality, while it plays an important role in the stability of the overall structure of the tunnel segment, the earth pressure transmission and impermeability. There is no accurate means for the detection of the grouting layer so far. As a non-destructive testing method with single detection surface, the impact-echo method is widely used in the detection of cracks, delamination, voids, etc. in concrete structures. In this paper, the impact-echo method was used to detect the grouting defect in grouting-segment structure. Combined with the finite element and the test structure, the signal was analyzed in the time-frequency domain. The results show that the finite element results are in good agreement with the experimental results and the accuracy of frequency distribution characteristics results meets the engineering needs. The time-frequency analysis can provide a foundation for the qualitative judgment of defects.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Geophysical Methods and Applications · Ultrasonics and Acoustic Wave Propagation · Geotechnical Engineering and Underground Structures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (14)
Show source-provided references
1. Zou, C., Chen, Z., Ping, D., et al., Experimental and numerical studies on nondestructive evaluation of grout quality in tendon ducts using impact echo method, J. Bridge Eng., 2016, vol. 21, no. 2.10.1061/(ASCE)BE.1943-5592.0000759 ↗
2. Tinkey, Y. and Olson, L.D., Applications and limitations of impact echo scanning for void detection in posttensioned bridge ducts, Transp. Res. Rec. J. Transp. Res. Board, 2008, no. 2070(2070), pp. 8–12.10.3141/2070-02 ↗
3. Crawford, K.C., NDT evaluation of long term bond durability of CFRP structural systems applied to RC highway bridges, Int. J. Adv. Struct. Eng., 2016, vol. 8, no. 2, pp. 161–168.10.1007/s40091-016-0120-2 ↗
4. DryverHuston, JianhongCui, DylanBurns, et al., Concrete bridge deck condition assessment with automated multisensor techniques, Struct. Infrastruct. Eng., 2011, vol. 7, nos. 7–8, pp. 613–623.10.1080/15732479.2010.501542 ↗
5. Song, K.I. and Cho, G.C., Bonding state evaluation of tunnel shotcrete applied onto hard rocks using the impact echo method, NDT & E Int., 2009, vol. 42, no. 6, pp. 487–500.10.1016/j.ndteint.2009.02.007 ↗
6. Aggelis, D.G., Shiotani, T., and Kasai, K., Evaluation of grouting in tunnel lining using impact echo, Tunnelling Underground Space Technol. Incorporating Trenchless Technol. Res., 2008, vol. 23, no. 6, pp. 629–637.10.1016/j.tust.2007.12.001 ↗
7. Hsieh, C.T., Lin, Y., Lin, S.K., Impact echo method for the deterioration evaluation of near surface mounted CFRP strengthening under outdoor exposure conditions, Mater. Struct., 2017, vol. 50, no. 1, p. 7210.1617/s11527-016-0944-z ↗
8. Wang, J.J., Chang, T.P., Chen, B.T., et al., Evaluation of resonant frequencies of solid circular 8 rods with impact echo method, J. Nondestr. Eval., 2010, vol. 29, no. 2, pp. 111–121.10.1007/s10921-010-0070-8 ↗
9. Hsiao, C., Cheng, C.C., Liou, T., et al., Detecting flaws in concrete blocks using the impact echo method, NDT & E Int., 2008, vol. 41, no. 2, pp. 98–107.10.1016/j.ndteint.2007.08.008 ↗
10. Kee, S.H. and Gucunski, N., Interpretation of flexural vibration modes from impact echo testing, J. Infrastruct. Syst., 2016, vol. 22, no. 3, p. 04016009.10.1061/(ASCE)IS.1943-555X.0000291 ↗
11. Gucunski, N., Yan, M., Wang, Z., et al., Rapid bridge deck condition assessment using three-dimensional visualization of impact echo data, J. Infrastruct. Syst., 2012, vol. 18, no. 1, pp. 12–24.10.1061/(ASCE)IS.1943-555X.0000060 ↗
12. Epasto, G., Proverbio, E., and Venturi, V., Evaluation of fire damaged concrete using impact echo method, Mate-r. Struct., 2010, vol. 43, nos. 1–2, p. 235.10.1617/s11527-009-9484-0 ↗
13. Bouden, T., Nibouche, M., Djerfi, F., et al., Improving wavelet transform for the impact echo method of nondestructive testing, Lect. Notes Electr. Eng., 2012, vol. 141, pp. 241–247.10.1007/978-3-642-27311-7_32 ↗
14. Qu, H., Li, M., Chen, G., et al., Multi bandwidth wavelet transform of impact echo signals for delamination detection of thin concrete slabs, J. Civ. Struct. Health Monitor., 2016, vol. 6, no. 4, pp. 1–16.10.1007/s13349-016-0162-y ↗