Journal
JOURNAL OF MOUNTAIN SCIENCE
Volume 8, Issue 5, Pages 728-738Publisher
SCIENCE PRESS
DOI: 10.1007/s11629-011-2038-2
Keywords
Landslide; Debris flow; Fiber Bragg Grating; In-place inclinometer; Column-net system
Categories
Funding
- The Hong Kong Polytechnic University [G-YE54, 1-BB7U]
- State Key Fundamental Research (973) program project [2008CB425802]
- Analysis of Geological and Mechanics Reasons Causing Damage of Bridge Structures during Wenchuan Earthquake and Recommendations for Reconstruction [85G0]
Ask authors/readers for more resources
Landslides and debris flows are typical geo-hazards which occur in hilly or mountainous regions. Debris flows may result from landslides. Geotechnical instrumentation plays an important role in monitoring and warning of landslides and resulted debris flows. Traditional technologies for monitoring landslides and debris flows have certain limitations. The new optical fiber sensors presented in this paper can overcome those limitations. This paper presents two new optical fiber sensor systems: one is the Fiber Bragg Grating (FBG)-based in-place inclinometer for monitoring landslides and the other is the FBG-based column-net system for monitoring debris flows. This paper presents the calibration results of FBG-based in-place inclinometers in laboratory. It is found that the calibration results are in good agreement with theoretical results. Both the FBG-based in-place inclinometers and the FBG-based column-net system have been installed at a site in Weijiagou valley, Beichuan County, Sichuan Province of China. Some preliminary results have been obtained and reported in the paper. The advantages of the FBG monitoring systems and their potential applications are also presented.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available