Longitudinal bars and hoops viewed from inside a pile reinforcement cage
Bored-pile reinforcement photograph (construction context). Ermell (resized/WebP) · CC BY-SA 4.0

Monitoring task and sensing route

Temperature profiles and a heat-transfer model can be used to investigate concrete-cover variations. Mix design, casting history and ground thermal properties are important inputs.

Original conceptual layout: Reinforcement and concrete and the optical-fiber route
Original OriginSense application concept showing observation relationships, not a customer installation.

Published research observation

Rui and colleagues measured curing temperatures in a field test pile and used thermal back-analysis to estimate geometry, comparing it with independent thermal-integrity testing. [1]

Research evidence and proposed validation
ItemDescription
Study settingField pile and heat-transfer modeling
Research observationCuring temperatures support cover-geometry analysis
Proposed comparisonRecord cage orientation, fiber depth, casting time and cable protection.

Validation and integration priorities

Retain material and ground thermal properties with independent temperature and integrity references.

Test parameter sensitivity at anomalous sections and review findings alongside construction and inspection records.

Reference

[1] Rui Y et al. Integrity Testing of Pile Cover Using Distributed Fibre Optic Sensing. Sensors (Basel, Switzerland) (2017). DOI: 10.3390/s17122949.