土工基础

›› 2015, Vol. 29 ›› Issue (2): 121-124.

• 工程实录 • 上一篇    下一篇

基于光纤光栅传感技术的边坡实时在线监测研究

吴孝清1，陆飞勇2，杜子超3   

  1. （1.武汉理工大学，武汉 430070；2.浙江良和交通建设有限公司，浙江宁波 315201；
    3.宁波良和路桥科技有限公司，浙江宁波 315201）
  • 收稿日期:2014-04-12 出版日期:2015-04-20 发布日期:2015-05-04
  • 作者简介:吴孝清（1989-），男，硕士研究生在读，研究方向为结构安全监测。

Real Time Online Monitoring of Highway Slopes Using Fiber Grating Sensing Technology

WU Xiaoqing1,LU Feiyong2,DU Zichao3   

  1. （1.Wuhan University of Technology, Wuhan 430070
    2.Zhejiang Lianghe Transportation Construction Co. Ltd., Ningbo 315201
    3.Ningbo Lianghe Highway and Bridge Technology Co., Ltd., Ningbo 315201）
  • Received:2014-04-12 Online:2015-04-20 Published:2015-05-04

摘要： 光纤光栅传感技术在边坡变形监测中的应用发展迅速。针对宁波市象山县一公路高边坡的实时在线安全监测项目，利用测斜管原理，制备了一套光纤Bragg光栅测斜装置，同时采用有限元局部强度折减法对边坡进行了稳定性分析，获取了边坡的临界位移场，并构建了边坡实时在线监测的网络骨架，初步实现了对高边坡的实时监测及早期预警。

关键词: 边坡工程, 传感器, 光纤光栅, 局部强度折减法

Abstract: The application of the fiber grating sensing technology in monitoring the highway slopes has a rapid development in recent years. This paper presents the real time online monitoring results of a highway slope safety monitoring in Xiangshan County, Ningbo. A fiber Bragg grating sensing device is developed based on the mechanism of slope inclinometer. The local strength reduction method was used in the finite element analysis for the stability of the monitored slope and the displacement field was established. The real time online monitoring network system is also developed and the stability forecast can be implemented.
 

Key words: Slope Engineering, Monitoring Transducer, Fiber Grating, Location Strength Reduction Method