Diaphragm wall and earthworks at a construction site
Diaphragm-wall construction photograph (application context). Lvsreddy (resized/WebP) · CC0

Monitoring task and sensing route

Heating power, soil thermal properties and initial temperature all affect the response. Comparisons need matched wall sections and a no-flow reference.

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

Published research observation

Liu and colleagues used externally heated fiber in a diaphragm-wall model to distinguish seepage-affected regions through differences in temperature rise. [1]

Research evidence and proposed validation
ItemDescription
Study settingDiaphragm-wall seepage model
Research observationHeating response reflects local seepage effects
Proposed comparisonMap the fiber and heating circuit to wall sections; record the input and initial temperature.

Validation and integration priorities

Compare known-flow and no-flow states at equivalent heating stages.

Relate thermal anomalies to independent seepage measurements and measured soil properties.

Reference

[1] Liu T et al. Experimental Study of Leakage Monitoring of Diaphragm Walls Based on Distributed Optical Fiber Temperature Measurement Technology. Sensors (Basel, Switzerland) (2019). DOI: 10.3390/s19102269.