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Proof of concept of wireless TERS monitoring

Author(s)
Allen, Michael; Gaura, Elena; Wilkins, Ross; Brusey, James; Dong, Yuepeng; Whittle, Andrew; ... Show more Show less
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Abstract
Temporary earth retaining structures help prevent collapse during construction excavation. To ensure that these structures are operating within design specifications, load forces on supports must be monitored. Current monitoring approaches are expensive, sparse, off-line, and thus difficult to integrate into predictive models. This work aims to show that wirelessly connected battery powered sensors are feasible, practical, and have similar accuracy to existing sensor systems. We present the design and validation of ReStructure, an end-to-end prototype wireless sensor network for collection, communication, and aggregation of strain data. ReStructure was validated through a 6-month deployment on a real-life excavation site with all but one node producing valid and accurate strain measurements at higher frequency than existing ones. These results and the lessons learnt provide the basis for future widespread wireless temporary earth retaining structure monitoring that increase measurement density and integrate closely with predictive models to provide timely alerts of damage or potential failure.
Date issued
2017-11
URI
http://hdl.handle.net/1721.1/117506
Department
Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
Journal
Structural Control and Health Monitoring
Publisher
Wiley
Citation
Allen, Michael, et al. “Proof of Concept of Wireless TERS Monitoring: Proof of Concept: Wireless TERS Monitoring System.” Structural Control and Health Monitoring, vol. 24, no. 12, Dec. 2017, p. e2026.
Version: Original manuscript
ISSN
1545-2255

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