A monitoring and warning system for expressway slopes using FBG sensing technology
This article presents a fiber Bragg grating–based monitoring and warning system for expressway slopes. A detailed architecture of the sensing system based on fiber Bragg grating sensors for safety analysis and pre-warning of slopes is described and interpreted. The whole warning and monitoring syste...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-05-01
|
| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | https://doi.org/10.1177/1550147718776228 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850234722287878144 |
|---|---|
| author | Yongqiang Hu Chengyu Hong Yifan Zhang Guowei Li |
| author_facet | Yongqiang Hu Chengyu Hong Yifan Zhang Guowei Li |
| author_sort | Yongqiang Hu |
| collection | DOAJ |
| description | This article presents a fiber Bragg grating–based monitoring and warning system for expressway slopes. A detailed architecture of the sensing system based on fiber Bragg grating sensors for safety analysis and pre-warning of slopes is described and interpreted. The whole warning and monitoring system was mainly realized based on two monitored parameters from fiber Bragg grating strain sensors: (1) the measured bend strain of inclinometers for the calculation of horizontal displacement and (2) axial strain distributions of soil nails. The maximum magnitudes of cumulative strain and displacement in the present monitored expressway slope were 198 με and 5.06 mm, respectively. Critical threshold values of different warning levels for expressway slopes have been proposed using statistical analysis method based on comparative analysis of history monitored data from slopes in the same region. A total of four warning levels characterized by different ranges of displacement rates and the related engineering measures to treat expressway slopes were proposed and discussed. This fiber Bragg grating–based monitoring system of soil nails and inclinometers forms a real-time sensing network, assisting engineers to adopt quick and essential measures to deal with potential landslide risk. |
| format | Article |
| id | doaj-art-101becf83a4e447889bd15962f742e48 |
| institution | OA Journals |
| issn | 1550-1477 |
| language | English |
| publishDate | 2018-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj-art-101becf83a4e447889bd15962f742e482025-08-20T02:02:32ZengWileyInternational Journal of Distributed Sensor Networks1550-14772018-05-011410.1177/1550147718776228A monitoring and warning system for expressway slopes using FBG sensing technologyYongqiang Hu0Chengyu Hong1Yifan Zhang2Guowei Li3School of Civil Engineering, Guangzhou University, Guangzhou, ChinaKey Laboratory of Structure and Wind Tunnel of Guangdong Higher Education Institutes, Shantou, ChinaSchool of Textiles, Zhongyuan University of Technology, Zhengzhou, ChinaCollege of Civil and Transportation Engineering, Hohai University, Nanjing, ChinaThis article presents a fiber Bragg grating–based monitoring and warning system for expressway slopes. A detailed architecture of the sensing system based on fiber Bragg grating sensors for safety analysis and pre-warning of slopes is described and interpreted. The whole warning and monitoring system was mainly realized based on two monitored parameters from fiber Bragg grating strain sensors: (1) the measured bend strain of inclinometers for the calculation of horizontal displacement and (2) axial strain distributions of soil nails. The maximum magnitudes of cumulative strain and displacement in the present monitored expressway slope were 198 με and 5.06 mm, respectively. Critical threshold values of different warning levels for expressway slopes have been proposed using statistical analysis method based on comparative analysis of history monitored data from slopes in the same region. A total of four warning levels characterized by different ranges of displacement rates and the related engineering measures to treat expressway slopes were proposed and discussed. This fiber Bragg grating–based monitoring system of soil nails and inclinometers forms a real-time sensing network, assisting engineers to adopt quick and essential measures to deal with potential landslide risk.https://doi.org/10.1177/1550147718776228 |
| spellingShingle | Yongqiang Hu Chengyu Hong Yifan Zhang Guowei Li A monitoring and warning system for expressway slopes using FBG sensing technology International Journal of Distributed Sensor Networks |
| title | A monitoring and warning system for expressway slopes using FBG sensing technology |
| title_full | A monitoring and warning system for expressway slopes using FBG sensing technology |
| title_fullStr | A monitoring and warning system for expressway slopes using FBG sensing technology |
| title_full_unstemmed | A monitoring and warning system for expressway slopes using FBG sensing technology |
| title_short | A monitoring and warning system for expressway slopes using FBG sensing technology |
| title_sort | monitoring and warning system for expressway slopes using fbg sensing technology |
| url | https://doi.org/10.1177/1550147718776228 |
| work_keys_str_mv | AT yongqianghu amonitoringandwarningsystemforexpresswayslopesusingfbgsensingtechnology AT chengyuhong amonitoringandwarningsystemforexpresswayslopesusingfbgsensingtechnology AT yifanzhang amonitoringandwarningsystemforexpresswayslopesusingfbgsensingtechnology AT guoweili amonitoringandwarningsystemforexpresswayslopesusingfbgsensingtechnology AT yongqianghu monitoringandwarningsystemforexpresswayslopesusingfbgsensingtechnology AT chengyuhong monitoringandwarningsystemforexpresswayslopesusingfbgsensingtechnology AT yifanzhang monitoringandwarningsystemforexpresswayslopesusingfbgsensingtechnology AT guoweili monitoringandwarningsystemforexpresswayslopesusingfbgsensingtechnology |