[PDF][PDF] Applications of BOTDR fiber optics to the monitoring of underground structures
Three different applications for monitoring displacements in underground structures using a
BOTDR-based distributed optical fiber strain sensing system are presented. These
applications are related to the strain measurements of (1) instrumented PVC tube designed
to be attached to tunnel side wall and ceiling as a sensor;(2) rock bolts for tunnels; and (3)
shotcrete lining under loading. The effectiveness of using the proposed strain sensing
system is evaluated by carrying out laboratory tests, in-situ measurements, and numerical …
BOTDR-based distributed optical fiber strain sensing system are presented. These
applications are related to the strain measurements of (1) instrumented PVC tube designed
to be attached to tunnel side wall and ceiling as a sensor;(2) rock bolts for tunnels; and (3)
shotcrete lining under loading. The effectiveness of using the proposed strain sensing
system is evaluated by carrying out laboratory tests, in-situ measurements, and numerical …
Applications of BOTDR fiber optics to the monitoring of underground structures
R Moffat Covarrubias, JF Beltrán Morales… - 2015 - repositorio.uchile.cl
Three different applications for monitoring displacements in underground structures using a
BOTDR-based distributed optical fiber strain sensing system are presented. These
applications are related to the strain measurements of (1) instrumented PVC tube designed
to be attached to tunnel side wall and ceiling as a sensor;(2) rock bolts for tunnels; and (3)
shotcrete lining under loading. The effectiveness of using the proposed strain sensing
system is evaluated by carrying out laboratory tests, in-situ measurements, and numerical …
BOTDR-based distributed optical fiber strain sensing system are presented. These
applications are related to the strain measurements of (1) instrumented PVC tube designed
to be attached to tunnel side wall and ceiling as a sensor;(2) rock bolts for tunnels; and (3)
shotcrete lining under loading. The effectiveness of using the proposed strain sensing
system is evaluated by carrying out laboratory tests, in-situ measurements, and numerical …
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