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Landslides

, Volume 16, Issue 1, pp 65–73 | Cite as

An experimental evaluation of impact force on a fiber Bragg grating-based device for debris flow warning

  • Shaojie Zhang
  • Changxue Xu
  • Jiang ChenEmail author
  • Jun Jiang
Original Paper

Abstract

Conventional sensors for debris flow monitoring suffer from several drawbacks including low service life, low reliability in long-distance data transfer, and stability in severe weather conditions. Recently, fiber Bragg grating (FBG)-based sensors have been developed to monitor debris flows. However, they can be easily damaged by the impact forces of boulders within debris flow. This paper presents a new FBG-based device to measure the strain induced by the impact force of debris flow with high reliability and effectiveness. The effects of the impact forces of debris flows have been investigated. Then, the relationship between the strain and the debris flow energy correlating with the damage to building structures has been established. It is shown that this new FBG-based device is capable of monitoring and warning about debris flows.

Keywords

Fiber Bragg grating Debris-flow monitoring Impact force 

Notes

Funding information

This work was supported by the National Natural Science Foundation of China (Grand No.51809262) and the science and technology planning project from Chongqing Administration of Land, Resources and Housing (KJ-2018005).

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Shaojie Zhang
    • 1
  • Changxue Xu
    • 2
  • Jiang Chen
    • 3
    Email author
  • Jun Jiang
    • 4
  1. 1.Key Laboratory of Mountain Hazards and Earth Surface Process, Institute of Mountain Hazards and EnvironmentChinese Academy of SciencesChengduChina
  2. 2.Department of Industrial, Manufacturing, and Systems EngineeringTexas Tech UniversityLubbockUSA
  3. 3.College of Architecture and EnvironmentSichuan UniversityChengduChina
  4. 4.Chongqing Institute of Geological Environment MonitoringChongqingChina

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