Hongying Zhang, Zhiyuan Yang, Rongpeng Cui, Peng Guan, Yongkang Dong. Horizontal Load Test on Offshore Wind Turbine Pile Foundation Based on BOTDR[J]. Acta Optica Sinica, 2021, 41(13): 1306016
- Acta Optica Sinica
- Vol. 41, Issue 13, 1306016 (2021)
Fig. 1. Test system of BOTDR. (a) Experimental setup of BOTDR; (b) photo of the test system
Fig. 2. Test site of the pile foundation
Fig. 3. Arrangement of the distributed optical fiber sensors on the test pile. (a) Cross section; (b) detailed arrangement of the optical fibers; (c) pretreatment of the test pile surface; (d) photo of the test pile with installed sensing fibers
Fig. 4. Horizontal loading system
Fig. 5. Strain distribution of the sensing fibers under different loads
Fig. 6. Relationship between the maximum strain and the horizontal load
Fig. 7. Schematic of pure bending deformation
Fig. 8. Displacement distribution of the test pile under different loads
Fig. 9. Relationship between the maximum displacement and the horizontal load
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Table 1. Information of horizontal loading
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