Yonghong Wang, Mingyi Zhang, Chunwei Zhang, Xiaoyu Bai. Application of Enhancement Micro FBG Strain Sensor in Model Experiment of Static Pressure Precast Pile[J]. Laser & Optoelectronics Progress, 2018, 55(5): 050606
- Laser & Optoelectronics Progress
- Vol. 55, Issue 5, 050606 (2018)
Fig. 1. Measurement principle of quasi-distributed FBG
Fig. 2. Calibration test results of the FBG sensor and fitting curves. (a) FBG 1; (b) FBG 2; (c) FBG 3
Fig. 3. Structure schematic diagram of enhancement micro FBG strain sensor
Fig. 4. Series FBG strain sensors
Fig. 5. Model pile and installation of FBG strain sensors
Fig. 6. Pressed pile process
Fig. 7. Axial force of pile shaft versus embedded depth. (a) FBG 1, FBG 2, FBG 3; (b) FBG 4, FBG 5, FBG 6
Fig. 8. Profiles of side friction of pile with embedded depth. (a) FBG 1, FBG 2, FBG 3; (b) FBG 4, FBG 5, FBG 6
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