In Situ Research on the Spatiotemporal Variations in the Temperature and Deformation of Aeolian Sand-Modified Soil Roadbed Constructed in Cold Regions

Figure 3

Temperature, humidity, and deformation sensors embedded in the test roadbed soil and data collection terminal. (a) Buried groove excavation, (b) fiber optic cable layout, (c) humidity sensor, (d) burying of humidity sensor, (e) humidity sensor data collection terminal, (f) fiber grating (temperature) strain sensor, (g) embedded fiber grating (temperature) strain sensor, and (h) strain sensor data acquisition terminal.

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