IDEAS home Printed from https://ideas.repec.org/a/sae/intdis/v14y2018i5p1550147718776228.html
   My bibliography  Save this article

A monitoring and warning system for expressway slopes using FBG sensing technology

Author

Listed:
  • Yongqiang Hu
  • Chengyu Hong
  • Yifan Zhang
  • Guowei Li

Abstract

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.

Suggested Citation

  • Yongqiang Hu & Chengyu Hong & Yifan Zhang & Guowei Li, 2018. "A monitoring and warning system for expressway slopes using FBG sensing technology," International Journal of Distributed Sensor Networks, , vol. 14(5), pages 15501477187, May.
    • Handle: RePEc:sae:intdis:v:14:y:2018:i:5:p:1550147718776228
    DOI: 10.1177/1550147718776228
    as

    Download full text from publisher

    File URL: https://journals.sagepub.com/doi/10.1177/1550147718776228
    Download Restriction: no
    File URL: https://libkey.io/10.1177/1550147718776228?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:sae:intdis:v:14:y:2018:i:5:p:1550147718776228. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: SAGE Publications (email available below). General contact details of provider: .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.