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A preliminary study of the application of the strain-self-sensing smart geogrid rib in expansive soils.
- Source :
-
Geotextiles & Geomembranes . Feb2023, Vol. 51 Issue 1, p275-281. 7p. - Publication Year :
- 2023
-
Abstract
- Flexible conductive materials are widely used in structural health monitoring; it is also known in geotechnical engineering. In this preliminary study, a strain-self-sensing smart geogrid rib was proposed to monitor the induced strain by wetting-drying cycles of the expansive soil. After the calibration, a physical modeling test was conducted with the smart geogrid rib reinforced in expansive soils under three wetting-drying cycles. Results demonstrated: that the smart geogrid rib was capable of self-sensing its strain; the strain self-sensed by the smart geogrid rib was in good agreement with that measured by FBG strain sensors before cracks were generated; it could capture the crack propagation of expansive soils during wetting-drying cycles by the discrepancy compared to FBG sensors. Further study will be continued for the mechanism of the geogrid instead of the geogrid rib and the application to real-time monitoring of the performance of the geosynthetic expansive soil slopes. • A geogrid rib was fabricated with flexible conductive materials to make the strain-self-sensing possible. • A physical modeling test was conducted to demonstrate the application of the smart geogrid rib in the expansive soil. • The geogrid rib could sense the crack propagation of expansive soils, and strains measured agreed with strain sensors. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02661144
- Volume :
- 51
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Geotextiles & Geomembranes
- Publication Type :
- Academic Journal
- Accession number :
- 160632757
- Full Text :
- https://doi.org/10.1016/j.geotexmem.2022.10.005