Geostructural monitoring with long-gage interferometric sensors

Daniele Inaudi; Nicoletta Casanova

doi:10.1117/12.387807

9 June 2000 Geostructural monitoring with long-gage interferometric sensors

Daniele Inaudi, Nicoletta Casanova

Proceedings Volume 3995, Nondestructive Evaluation of Highways, Utilities, and Pipelines IV; (2000) https://doi.org/10.1117/12.387807
Event: SPIE's 5th Annual International Symposium on Nondestructive Evaluation and Health Monitoring of Aging Infrastructure, 2000, Newport Beach, CA, United States

Abstract

The monitoring of geotechnical structures like piles, anchors and tunnels requires the measurement of deformations over bases of a few meters to a few tens of meters. The SOFO monitoring system, based on the use of long-gage low-coherence interferometric sensors therefore presents interesting application opportunities in this domain. The SOFO system was installed in a number of piles to monitor their short an long term deformations, to evaluate the lateral friction and to assess their ultimate bearing capacity. The sensors were also installed inside anchor cables to measure the deformations of the rock, in the free and in the anchored parts. Additional sensors were installed directly on single cable strands. This paper presents the sensor installation and the results from selected applications in the monitoring of piles and anchors.

Citation Download Citation

Daniele Inaudi and Nicoletta Casanova "Geostructural monitoring with long-gage interferometric sensors", Proc. SPIE 3995, Nondestructive Evaluation of Highways, Utilities, and Pipelines IV, (9 June 2000); https://doi.org/10.1117/12.387807

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