Experimental Study on Slope Deformation Monitoring Based on a Combined Optical Fiber Transducer
Joint Authors
Liu, Dongyan
Zhu, Zheng-Wei
Zheng, Yong
Liu, Hong-Lin
Liu, Bang
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-03-16
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Landslide monitoring is very important in predicting the behavior of landslides, thereby ensuring environment, life, and property safety.
On the basis of our previous studies, a novel combined optic fiber transducer (COFT) for landslides monitoring and the related analysis methods are presented.
Based on the principles of optical fiber microbending loss, the empirical formula of the shearing displacement of sliding body versus optical loss was established through a stretching test of optical fiber bowknot.
Then the COFT grouting direct shearing tests, a large-scale landslide model test, and numerical modeling verification with FLAC3D are carried out.
According to the results, the initial measurement precision of the designed COFT in sandy clay is 1 mm; its monitoring sliding distance is larger than 26.5 mm.
The calculated values based on empirical formula are in good agreement with the laboratory tests and numerical simulation results.
When the ratio of cement and sand in mortar is 1 : 5, the error between the calculated displacement and the measured displacement of sliding surface is the smallest.
The COFT with expandable polystyrene (EPS) as its base material performs better in monitoring sandy clay slopes because both the error and the mean square deviation of the empirical formula are smaller.
American Psychological Association (APA)
Zheng, Yong& Liu, Dongyan& Zhu, Zheng-Wei& Liu, Hong-Lin& Liu, Bang. 2017. Experimental Study on Slope Deformation Monitoring Based on a Combined Optical Fiber Transducer. Journal of Sensors،Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1187409
Modern Language Association (MLA)
Zheng, Yong…[et al.]. Experimental Study on Slope Deformation Monitoring Based on a Combined Optical Fiber Transducer. Journal of Sensors No. 2017 (2017), pp.1-11.
https://search.emarefa.net/detail/BIM-1187409
American Medical Association (AMA)
Zheng, Yong& Liu, Dongyan& Zhu, Zheng-Wei& Liu, Hong-Lin& Liu, Bang. Experimental Study on Slope Deformation Monitoring Based on a Combined Optical Fiber Transducer. Journal of Sensors. 2017. Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1187409
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1187409