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Title: Monitoring of large strains in submerged geotextile tubes using plastic optical fibre sensors
Authors: Kuang, K.S.C. 
Tan, C.Y. 
Chew, S.H. 
Quek, S.T. 
Keywords: Geotextile
Large strain
Plastic optical fibre
Issue Date: Jun-2011
Citation: Kuang, K.S.C., Tan, C.Y., Chew, S.H., Quek, S.T. (2011-06). Monitoring of large strains in submerged geotextile tubes using plastic optical fibre sensors. Sensors and Actuators, A: Physical 167 (2) : 338-346. ScholarBank@NUS Repository.
Abstract: The measurement of large strains in geotextile sheets in the order of a few tens of percentage strain (up to 40% in this study) has been achieved using plastic optical fibre (POF) sensors. These instrumented geotextile sheets were manufactured in a form of geotextile tubes which were strategically dumped from a barge into water depth of up to 25 m. In the sensor evaluation phase, POF sensors were mounted onto geotextile sheets and tested using a tensile testing machine with customized wide-width grips and the results compared to a reference video-capture strain measurement system. Model instrumented geotextile tubes were also built and tested in a geotechnical centrifuge at 100 × g to simulate the on-site dumping condition. The entire POF sensor system was also evaluated in terms of its waterproofing resistance by submerging a POF-instrumented geotextile sheet underwater. The instrumented geotextile mat was also subjected to water pressure equivalent to 25 m water depth in the field to assess the survivability of the system under on-site condition. Finally, results based on recent field work where the POF sensors were attached to full-size submerged geotextile tubes will be highlighted. © 2011 Elsevier B.V. All rights reserved.
Source Title: Sensors and Actuators, A: Physical
ISSN: 09244247
DOI: 10.1016/j.sna.2011.03.013
Appears in Collections:Staff Publications

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