Landslide monitoring using a road-embedded optical fiber sensor

Michael Iten; Alexander M. Puzrin; Andreas Schmid

doi:10.1117/12.774515

7 April 2008 Landslide monitoring using a road-embedded optical fiber sensor

Michael Iten, Alexander M. Puzrin, Andreas Schmid

Proceedings Volume 6933, Smart Sensor Phenomena, Technology, Networks, and Systems 2008; 693315 (2008) https://doi.org/10.1117/12.774515
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2008, San Diego, California, United States

Abstract

A novel technique for the determination of a creeping landslide boundary is demonstrated. It is based on application of distributed optical fiber strain measurements using Brillouin Optical Time Domain Analysis (BOTDA) technology. A road crossing the St. Moritz landslide boundary was instrumented with a fiber optic cable, which turned the road, effectively, into a large scale strain gauge. The obtained monitoring data was in good agreement with visual observation and also followed the trends of the geodetical data. The presented validation of this technology allows for a conclusion that distributed fiber optic strain sensing is a promising new tool in landslide surveillance. At present, until methods and standards in this field are established and reliable, combination with traditional methods is necessary. Ongoing measurements during 2008 may strengthen the conclusions of this paper.

Citation Download Citation

Michael Iten, Alexander M. Puzrin, and Andreas Schmid "Landslide monitoring using a road-embedded optical fiber sensor", Proc. SPIE 6933, Smart Sensor Phenomena, Technology, Networks, and Systems 2008, 693315 (7 April 2008); https://doi.org/10.1117/12.774515

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